JPH0673285B2 - Deflection-yoke device - Google Patents
Deflection-yoke deviceInfo
- Publication number
- JPH0673285B2 JPH0673285B2 JP62143901A JP14390187A JPH0673285B2 JP H0673285 B2 JPH0673285 B2 JP H0673285B2 JP 62143901 A JP62143901 A JP 62143901A JP 14390187 A JP14390187 A JP 14390187A JP H0673285 B2 JPH0673285 B2 JP H0673285B2
- Authority
- JP
- Japan
- Prior art keywords
- distortion
- seagull
- coil
- shaped
- screen
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000012937 correction Methods 0.000 claims description 28
- 230000002093 peripheral effect Effects 0.000 claims description 28
- 238000010894 electron beam technology Methods 0.000 description 10
- 241000226585 Antennaria plantaginifolia Species 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 229910000976 Electrical steel Inorganic materials 0.000 description 1
- 241000270666 Testudines Species 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Description
【発明の詳細な説明】 〈産業上の利用分野〉 本発明は、テレビジョン受像機、ディスプレイ装置等に
用いられる偏向ヨーク装置に関し、特に、後述するSP管
と呼ばれる形式の陰極線管に発生する周辺歪を低減させ
るための偏向ヨーク装置に関する。Description: TECHNICAL FIELD The present invention relates to a deflection yoke device used in a television receiver, a display device, and the like, and in particular, a peripheral portion of a cathode ray tube of a type called an SP tube described later. The present invention relates to a deflection yoke device for reducing distortion.
〈従来の技術〉 一般に、インライン配列の３電子ビームを有するカラー
陰極線管に装着して電子ビームを偏向する偏向ヨーク装
置は、水平偏向コイルが全体としてピンクッション磁界
となり、また、垂直偏向コイルがバレル磁界となるよう
に構成することにより、理論的にはミスコンバージェン
スを零にすることができる。しかし、実際には陰極線管
の構造、偏向ヨーク装置の構造から、理論上の特性を得
ることは困難であり、現実には種々の態様のミスコンバ
ージェンスが発生する。<Prior Art> Generally, in a deflection yoke device which is mounted on a color cathode ray tube having three electron beams in an in-line arrangement to deflect the electron beam, a horizontal deflection coil serves as a pincushion magnetic field as a whole, and a vertical deflection coil is a barrel. Misconvergence can theoretically be zero by constructing the magnetic field. However, in reality, it is difficult to obtain theoretical characteristics from the structure of the cathode ray tube and the structure of the deflection yoke device, and in reality, various modes of misconvergence occur.
一方、陰極線管の大型化、平面化に伴って、SP管が多用
されるようになってきた。このSP管は、一例として、半
径1Rの球面からなる標準管と、標準管に比べて２倍の半
径2Rの平坦状球面を有する陰極線管（以下、FS管とい
う）を組合せ、画面中央部分をFS管の形状とし、画面周
辺部分を標準管の球面形状とした陰極線管をいうもので
ある。On the other hand, with the increase in size and flattening of cathode ray tubes, SP tubes have come to be widely used. As an example of this SP tube, a standard tube consisting of a spherical surface with a radius of 1R and a cathode ray tube having a flat spherical surface with a radius of 2R that is twice as large as the standard tube (hereinafter referred to as FS tube) are combined, and the central portion of the screen is displayed. This is a cathode ray tube in the shape of an FS tube, with the peripheral portion of the screen being the spherical shape of a standard tube.
そして、陰極線管をSP管として構成した場合、画面の
上，下部に球面形状に伴い、第８図（イ）に示すよう
に、シーガル歪と呼ばれるかめも形に屈曲した歪Ｓが発
生してしまうことが知られている。When the cathode ray tube is configured as an SP tube, a distortion S called a seagull distortion, which is bent in a turtle shape, is generated on the upper and lower portions of the screen due to the spherical shape, as shown in FIG. It is known to end up.
このため、従来技術においては、このシーガル歪Ｓを補
正するために、偏向ヨークの前部拡大部の上，下位置に
磁性材料からなるクロスアーム、或は、補正マグネット
等からなるシーガル歪補正手段30,31を設け、画面の
上，下中央部分に発生しているピンクッション歪をバレ
ル形となるように図中矢示32方向に引張り、シーガル歪
Ｓを補正していた。Therefore, in the prior art, in order to correct the seagull distortion S, a crossarm made of a magnetic material is provided above and below the front enlarged portion of the deflection yoke, or a seagull distortion correction means made of a correction magnet or the like. 30 and 31 are provided, and the pincushion strain occurring in the upper and lower central portions of the screen is pulled in the direction of the arrow 32 in the figure so as to form a barrel shape, and the seagull strain S is corrected.
〈発明が解決しようとする問題点〉 しかしながら、シーガル歪Ｓを補正するために、シーガ
ル歪補正手段30,31を用いた場合、第８図（ロ）に示す
ように、図面の上，下中央部分のピンクッション歪は平
坦に補正されるが、画面上，下位置の左，右周辺部分、
および、中間部の左，右両端の垂下りの歪がより大きく
なるという問題点があった。<Problems to be Solved by the Invention> However, when the seagull distortion correcting means 30 and 31 are used to correct the seagull distortion S, as shown in FIG. The pincushion distortion of the part is corrected flat, but the left and right peripheral parts at the top and bottom of the screen,
In addition, there is a problem that the distortion of the drooping at the left and right ends of the middle portion becomes larger.
本発明はこのような従来技術の問題点に鑑みなされたも
ので、SP管に特有なシーガル歪のうち画面の上，下周辺
部に垂下るように発生する周辺歪、または、クロスアー
ムや補正マグネットを用いた場合に、画面の上，下周辺
部や中間部周辺に発生する周辺歪等を確実に補正できる
ようにした偏向ヨーク装置を提供することを目的とす
る。The present invention has been made in view of the above problems of the prior art. Among the seagull distortions peculiar to the SP tube, peripheral distortions that hang down to the upper and lower peripheral portions of the screen, or cross arms and corrections. An object of the present invention is to provide a deflection yoke device capable of surely correcting the peripheral distortion and the like generated around the upper and lower peripheral portions and the middle portion of the screen when a magnet is used.
〈問題点を解決するための手段〉 本発明の偏向ヨーク装置は上記問題点を解決するために
なされたもので、コアと、コアに沿って設けられた一対
の水平偏向コイルおよび垂直偏向コイルと、水平偏向コ
イルと垂直偏向コイルとの間に設けられ、両コイルの保
持と絶縁を行なうコイルボビンとからなる偏向ヨーク装
置において、前記コイルボビンの前部拡大部の上下両外
周面に一対の第１のシーガル歪補正手段を設けるととも
に、前記コイルボビンの前部拡大部の左右両外周面に、
棒状マグネットと略Ｅ字状の板状磁性片とからなる一対
の第２のシーガル歪補正手段を設けてなるものである。<Means for Solving Problems> The deflection yoke device of the present invention is made to solve the above problems, and includes a core and a pair of horizontal deflection coils and vertical deflection coils provided along the core. , A deflection yoke device provided between a horizontal deflection coil and a vertical deflection coil and comprising a coil bobbin for holding and insulating both coils, a pair of first first and second outer peripheral surfaces of a front enlarged portion of the coil bobbin. Along with the seagull distortion correction means, on the left and right outer peripheral surfaces of the front enlarged portion of the coil bobbin,
A pair of second seagull distortion correcting means including a rod-shaped magnet and a plate-shaped magnetic piece having a substantially E-shape is provided.
〈作用〉 第２のシーガル歪補正手段をマグネットおよび略Ｅ字状
の板状磁性片との組合せにより構成したもので、マグネ
ットから発生する磁界のうち、周辺歪を補正するための
磁界を除いて、他の磁界を板状磁性片により分路して電
子ビームに加わる割合を減少させ、垂下りの周辺歪を平
坦にしてなるものである。<Operation> The second seagull distortion correcting means is constituted by a combination of a magnet and a substantially E-shaped plate-like magnetic piece, and excludes a magnetic field for correcting peripheral distortion in the magnetic field generated from the magnet. The other magnetic field is shunted by the plate-shaped magnetic piece to reduce the rate of addition to the electron beam and flatten the peripheral distortion of the droop.
〈実施例〉 以下、本発明偏向ヨーク装置の一実施例を図面を用いて
詳細に説明する。第１図，第２図においては、１は偏向
ヨーク本体で、偏向ヨーク本体１は半環状コア部材を接
合してなるコア２と、コア２の内面側に配設された一対
のくら型の水平偏向コイル3,3と、コア２にトロイダル
状に巻回された一対の垂直偏向コイル4,4と、コア２の
内面側に配設され、水平偏向コイル3,3、垂直偏向コイ
ル4,4を保持するとともに、水平偏向コイル3,3と垂直偏
向コイル4,4との間の絶縁を確保するための一対の半割
状ボビンを衝合してなるコイルボビン５とから大略構成
される。偏向ヨーク本体１を構成するコイルボビン５の
前部拡大部5Aの上，下端外周面には第１のシーガル歪補
正手段としての補正マグネット6,6が固着される。ここ
で、各補正マグネット６は第８図（イ）に示すシーガル
歪補正手段30,31と同様の機能を有し、シーガル歪の中
間部分に生じるピンクッション歪をバレル形に補正する
ものである。第１のシーガル歪補正手段としての補正マ
グネット6,6が固着されたコイルボビン５の前部拡大部5
Aの水平軸上、つまり左右の外周面上には、第２のシー
ガル歪補正手段7,7が互いに対向して設けられる。第２
のシーガル歪補正手段7,7はそれぞれ、第３図に示すよ
うに、棒状のマグネット7Aの珪素鋼板等からなり略Ｅ字
状に形成された板状磁性片7Bとから構成され、マグネッ
ト7Aの側面に板状磁性片7Bを接合してＥ字状部の先端同
志を対向させ、かつ、マグネット7Aを第２図に示す極性
に着磁した状態で、コイルボビン５の前部拡大部5Aの外
周面上に設けた収納部5A1内、および、前部拡大部5Aの
背面上に設けたＬ字状係止片5A2に収納・係止されて取
着固定がなされるものである。<Embodiment> An embodiment of the deflection yoke device of the present invention will be described in detail below with reference to the drawings. In FIGS. 1 and 2, reference numeral 1 denotes a deflection yoke body, which is composed of a core 2 formed by joining a semi-annular core member and a pair of cushion-shaped bodies arranged on the inner surface side of the core 2. The horizontal deflection coils 3 and 3, the pair of vertical deflection coils 4 and 4 wound around the core 2 in a toroidal shape, and the horizontal deflection coils 3 and 3 and the vertical deflection coils 4 and 4 disposed on the inner surface side of the core 2. A coil bobbin 5 is formed by abutting a pair of half-divided bobbins for holding the horizontal deflection coils 3 and 3 and ensuring the insulation between the vertical deflection coils 4 and 4. Correction magnets 6, 6 serving as first seagull distortion correction means are fixed to the upper and lower outer peripheral surfaces of the front enlarged portion 5A of the coil bobbin 5 constituting the deflection yoke body 1. Here, each correction magnet 6 has the same function as the seagull distortion correction means 30 and 31 shown in FIG. 8 (a), and corrects the pincushion distortion generated in the middle portion of the seagull distortion into a barrel shape. . The front enlarged portion 5 of the coil bobbin 5 to which the correction magnets 6, 6 as the first seagull distortion correction means are fixed
On the horizontal axis of A, that is, on the left and right outer peripheral surfaces, second seagull distortion correction means 7, 7 are provided so as to face each other. Second
As shown in FIG. 3, each of the seagull distortion correcting means 7 and 7 is composed of a bar-shaped magnet 7A made of a silicon steel plate or the like and a plate-shaped magnetic piece 7B formed in a substantially E shape. The outer periphery of the front enlarged portion 5A of the coil bobbin 5 in a state where the plate-shaped magnetic piece 7B is joined to the side surface so that the tips of the E-shaped portions face each other and the magnet 7A is magnetized to the polarity shown in FIG. It is mounted and fixed by being stored and locked in the storage portion 5A1 provided on the surface and in the L-shaped locking piece 5A2 provided on the rear surface of the front enlarged portion 5A.
斯かる構成の偏向ヨーク装置において、第５図（イ）に
示す画面上の周辺歪10を補正する際の動作を以下に説明
する。偏向ヨーク本体１のコイルボビン５の前部拡大部
5Aの外面上に取着固定された第２のシーガル歪補正手段
７を構成するマグネット7Aによって発生する磁力線φ
は、第４図に示すように、マグネット7AのＮ極から発生
して略Ｅ字状の板状磁性片7BのＥ字状部をわたってマグ
ネット７のＳ極に至るもので、磁力線φによる磁力をＢ
とすると、電子ビームは磁力Ｂによって、画面の下部で
は下方向の力F1を受け、また、画面の上部では上方向の
力F2を受けることになる。従って、電子ビームは力F1，
F2によって画面の下部では下方向に曲げられ、画面の上
部では上方向に曲げられ、第５図（イ）に示す画面の周
辺歪10は矢印方向に補正され、第５図（ロ）に示す如
く、周辺歪のない正常な画面を得ることができるもので
ある。この際、画面の中央部では、磁力線φが第２のシ
ーガル歪補正手段７の板状磁性片7BのＥ字状部を経由す
ることで、電子ビームから離れた位置を通り、加えて、
板状磁性片7Bによって磁力線φの一部が吸収されるもの
で、これにより、電子ビームに加わる画面中央部におけ
る力F3，F4は弱められ、画面の中央部で画面に悪影響を
与えることはないものである。ここで、第４図中、Ｉは
電子ビームによる電流の向きを示すものである。In the deflection yoke device having such a configuration, the operation for correcting the peripheral distortion 10 on the screen shown in FIG. 5A will be described below. Enlarged front part of coil bobbin 5 of deflection yoke body 1
Line of magnetic force φ generated by the magnet 7A constituting the second seagull distortion correction means 7 attached and fixed to the outer surface of 5A.
Is generated from the N pole of the magnet 7A and reaches the S pole of the magnet 7 through the E-shaped portion of the substantially E-shaped plate-shaped magnetic piece 7B as shown in FIG. Magnetic force is B
Then, the electron beam receives a downward force F 1 at the bottom of the screen and an upward force F 2 at the top of the screen due to the magnetic force B. Therefore, the electron beam has force F 1 ,
F 2 bends downward at the bottom of the screen and bends upward at the top of the screen, and the peripheral distortion 10 on the screen shown in FIG. 5 (a) is corrected in the direction of the arrow, as shown in FIG. 5 (b). As shown, a normal screen without peripheral distortion can be obtained. At this time, in the central portion of the screen, the line of magnetic force φ passes through the E-shaped portion of the plate-shaped magnetic piece 7B of the second seagull distortion correction means 7 so as to pass through the position apart from the electron beam, and in addition,
Part of the magnetic field line φ is absorbed by the plate-shaped magnetic piece 7B, which weakens the forces F 3 and F 4 applied to the electron beam in the central portion of the screen, and adversely affects the screen in the central portion of the screen. There is nothing. Here, in FIG. 4, I indicates the direction of the current by the electron beam.
尚、本発明偏向ヨーク装置の一実施例においては、収容
部を介して第２のシーガル歪補正手段をコイルボビンに
取付けたが、接着等の手段を用いて第２のシーガル歪補
正手段を直接にコイルボビンに取付けても良い。また、
本発明偏向ヨーク装置においては、周辺歪補正手段を構
成する板状磁性片の形状を、第６図に示すように、ダブ
ルＥ字状に形成しても良く、また、Ｅ字状の形状も、第
７図（イ）（ロ）に示すように、種々変形ができるもの
である。In the embodiment of the deflection yoke device of the present invention, the second seagull distortion correcting means is attached to the coil bobbin via the accommodating portion, but the second seagull distortion correcting means is directly attached to the coil bobbin. It may be attached to the coil bobbin. Also,
In the deflection yoke device of the present invention, the shape of the plate-shaped magnetic piece forming the peripheral distortion correction means may be formed in a double E shape as shown in FIG. As shown in FIGS. 7A and 7B, various modifications can be made.
〈発明の効果〉 本発明の偏向ヨーク装置は以上詳細に述べたとおりであ
り、以下に示す効果を有するものである。つまり、コイ
ルボビンの前部拡大部の上下両外周面に第１のシーガル
歪補正手段を設けることによって、より大きくなってし
まう画面左右両端の垂下がりの歪を、コイルボビンの前
部拡大部の左右両外周面に設けた第２のシーガル歪補正
手段によって適切に補正することができるものである。
すなわち、第２のシーガル歪補正手段は、棒状マグネッ
トによって発生した磁力線が、画面の中央部では、電子
ビームから離れた板状磁性片のＥ字状部を通り、電子ビ
ームに加わる磁界（力）が弱められるため、サイド歪、
コンバージェンス特性等を悪化させることなく周辺歪を
補正することができる。また、棒状マグネットと板状磁
性片の組合せにより周辺歪補正手段を構成するもので、
簡単な構成で周辺歪の補正がなされ、その上、周辺歪補
正手段の偏向ヨーク本体に対する取付けも簡単となるも
ので、コストダウン、作業性の向上がなされるものであ
る。さらに、磁性片を板状としたことで、マグネットに
よって発生する磁界を必要部分（画面の上，下部周辺）
に有効に集中することができ、より効果的な周辺歪の補
正がなされるものである。<Effects of the Invention> The deflection yoke device of the present invention is as described in detail above, and has the following effects. That is, by providing the first seagull distortion correction means on the upper and lower outer peripheral surfaces of the front enlarged portion of the coil bobbin, the drooping distortion at the left and right ends of the screen, which becomes larger, can be prevented from occurring on both the left and right sides of the front enlarged portion of the coil bobbin. It can be appropriately corrected by the second seagull distortion correction means provided on the outer peripheral surface.
That is, in the second seagull distortion correcting means, the magnetic field lines generated by the rod-shaped magnet pass through the E-shaped portion of the plate-shaped magnetic piece distant from the electron beam in the central portion of the screen, and a magnetic field (force) applied to the electron beam. Is weakened, side distortion,
The peripheral distortion can be corrected without deteriorating the convergence characteristics and the like. Also, the peripheral distortion correction means is configured by a combination of a bar-shaped magnet and a plate-shaped magnetic piece,
The peripheral distortion is corrected with a simple structure, and the peripheral distortion correction means can be easily attached to the deflection yoke main body, so that the cost is reduced and the workability is improved. Furthermore, by making the magnetic pieces plate-shaped, the magnetic field generated by the magnet is needed (in the upper and lower areas of the screen).
It is possible to effectively concentrate on, and more effectively correct the peripheral distortion.
第１図は本発明偏向ヨーク装置の一実施例における側面
図、第２図は第１図の背面図、第３図は本発明偏向ヨー
ク装置の一実施例における第２のシーガル歪補正手段の
分解斜視図、第４図は同じく第２のシーガル歪補正手段
による補正原理を示す説明図、第５図（イ）は画面上，
下部の周辺歪の状態を示す説明図、第５図（ロ）は第５
図（イ）の周辺歪を補正した状態を示す説明図、第６図
は本発明偏向ヨーク装置に用いられる第２のシーガル歪
補正手段を構成する板状磁性片の他の実施例の斜視図、
第７図（イ），（ロ）は同じく板状磁性片の更に他の実
施例の平面図、第８図（イ）は画面に表れるシーガル歪
とこれを補正する補正手段の関係を示す説明図、第８図
（ロ）は補正手段による補正後の状態を示す説明図であ
る。 １……偏向ヨーク本体、２……コア、3,3……水平偏向
コイル、4,4……垂直偏向コイル、５……コイルボビ
ン、5A……前部拡大部、６……第１のシーガル歪補正手
段（補正マグネット）、７……第２のシーガル歪補正手
段、7A……棒状マグネット、7B……板状磁性片、FIG. 1 is a side view of an embodiment of the deflection yoke device of the present invention, FIG. 2 is a rear view of FIG. 1, and FIG. 3 is a second seagull distortion correction means of the embodiment of the deflection yoke device of the present invention. FIG. 4 is an exploded perspective view, FIG. 4 is an explanatory view showing the correction principle by the second seagull distortion correction means, and FIG.
Explanatory drawing showing the state of peripheral distortion of the lower part, FIG.
FIG. 6A is an explanatory view showing a state in which the peripheral distortion is corrected, and FIG. 6 is a perspective view of another embodiment of the plate-shaped magnetic piece constituting the second seagull distortion correction means used in the deflection yoke device of the present invention. ,
7 (a) and 7 (b) are plan views of still another embodiment of the plate-like magnetic piece, and FIG. 8 (a) is an explanation showing the relationship between the seagull distortion appearing on the screen and the correcting means for correcting it. FIG. 8 (b) is an explanatory view showing a state after correction by the correction means. 1 ... Deflection yoke body, 2 ... Core, 3,3 ... Horizontal deflection coil, 4,4 ... Vertical deflection coil, 5 ... Coil bobbin, 5A ... Front enlarged portion, 6 ... First seagull Distortion correction means (correction magnet), 7 ... second seagull distortion correction means, 7A ... bar magnet, 7B ... plate-shaped magnetic piece,
Claims (1)
水平偏向コイルおよび垂直偏向コイルと、該水平偏向コ
イルと垂直偏向コイルとの間に設けられ、両コイルの保
持と絶縁を行なうコイルボビンとからなる偏向ヨーク装
置において、前記コイルボビンの前部拡大部の上下両外
周面に一対の第１のシーガル歪補正手段を設けたこと、
および、前記コイルボビンの前部拡大部の左右両外周面
に、棒状マグネットと略Ｅ字状の板状磁性片とからなる
一対の第２のシーガル歪補正手段を設けたことを特徴と
する偏向ヨーク装置。1. A core, a pair of a horizontal deflection coil and a vertical deflection coil provided along the core, and a coil provided between the horizontal deflection coil and the vertical deflection coil to hold and insulate both coils. In a deflection yoke device including a coil bobbin, a pair of first seagull distortion correction means is provided on both upper and lower outer peripheral surfaces of a front enlarged portion of the coil bobbin,
Further, a pair of second seagull distortion correcting means composed of a bar-shaped magnet and a substantially E-shaped plate-shaped magnetic piece is provided on both left and right outer peripheral surfaces of the front enlarged portion of the coil bobbin. apparatus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62143901A JPH0673285B2 (en) | 1987-06-09 | 1987-06-09 | Deflection-yoke device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62143901A JPH0673285B2 (en) | 1987-06-09 | 1987-06-09 | Deflection-yoke device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63307647A JPS63307647A (en) | 1988-12-15 |
| JPH0673285B2 true JPH0673285B2 (en) | 1994-09-14 |
Family
ID=15349699
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62143901A Expired - Lifetime JPH0673285B2 (en) | 1987-06-09 | 1987-06-09 | Deflection-yoke device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0673285B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4574873A1 (en) | 2023-12-21 | 2025-06-25 | K-Mäleon Haus GmbH | Sustainable material composition and molded article thereof |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE69311298T2 (en) * | 1993-02-18 | 1997-10-09 | Thomson Tubes & Displays | Deflection yoke with a pair of magnets near its minor axis |
| EP1353515A1 (en) * | 2002-04-12 | 2003-10-15 | Matsushita Display Devices (Germany) GmbH | Color picture tube and deflection system for color picture tubes with improved convergence |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5139389Y2 (en) * | 1971-02-26 | 1976-09-27 | ||
| JPS6088455U (en) * | 1983-11-24 | 1985-06-18 | 株式会社日立製作所 | deflection yoke |
-
1987
- 1987-06-09 JP JP62143901A patent/JPH0673285B2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4574873A1 (en) | 2023-12-21 | 2025-06-25 | K-Mäleon Haus GmbH | Sustainable material composition and molded article thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS63307647A (en) | 1988-12-15 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term | ||
| FPAY | Renewal fee payment (event date is renewal date of database) |
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