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1. 发明专利

JPH1140071A COLOR CATHODE-RAY TUBE 失效
公开(公告)号：JPH1140071A
公开(公告)日：1999-02-12
申请号：JP19415297
申请日：1997-07-18
申请人： HITACHI LTD , HITACHI ELECTRON DEVICES KK
发明人： ITO MASAHIRO , HAGIWARA KOJI
IPC分类号： H01J29/07 , H01J31/20
摘要： PROBLEM TO BE SOLVED: To provide a color cathode-ray tube that prevents its skirt part from warping and requires only easier assembly of its shadow mask assembly with no rise in manufacturing cost and in magnetic reluctance. SOLUTION: A color cathode-ray tube comprises a fluorescent screen formed on its panel part, a shadow mask assembly opposed to the screen in the panel part, an electron gun held in its neck part and a deflection yoke mounted on the periphery of its funnel part. The shadow mask assembly is constituted of a shadow mask 6 having a perforated part 6U with electron-beam passing holes, a solid part 6N extending from the overall circumferential edge of the perforated part 6U and a skirt part 6S extending downward from the overall circumferential edge of the solid part 6N, and of a support frame for supporting the skirt part 6S tight. The skirt part 6S is formed in its every side with at least one recession 14 having a width from 2 to 30 mm and such a depth as not to reach the lower edge of the skirt part 6S.

2. 发明专利

JPH10255680A COLOR CATHODE-RAY TUBE WITH SHADOW MASK 失效
公开(公告)号：JPH10255680A
公开(公告)日：1998-09-25
申请号：JP5628697
申请日：1997-03-11
申请人： HITACHI LTD , HITACHI ELECTRON DEVICES KK
发明人： ITO HIROYUKI , HOSOYA NOBUHIKO , ITO MASAHIRO , HAGIWARA KOJI
IPC分类号： H01J29/07
摘要： PROBLEM TO BE SOLVED: To minimize the warping width of the skirt part of a shadow mask manufactured by press shaping, enhance the workability in the mounting the shadow mask on a support frame, and prevent the deformation of the curved shape of the shadow mask. SOLUTION: This color cathode-ray tube has a shadow mask 5 formed of a curved perforated part 5U having a number of electron beam passing holes, a curved non-perforated part 5N continued to the perforated part 5U, and a skirt part 5S suspended down and bent from the periphery of the non-perforated part 5N, the shadow mask being fixed to a panel part inner part by spot-welding the skirt part 5X to the support frame. The shadow mask 5 has a plurality of slit parts 141 -1412 , 151 -158 formed by cutting the lower end side in a fixed depth and a plurality of swollen parts 161 -1612 , 171 -178 extended in the height direction and circularly swollen to the inside, which are substantially alternately provided on the skirt part 5S almost over the whole circumference.

3. 发明专利

JPH01244391A SENSOR ATTACHING STRUCTURE 失效
公开(公告)号：JPH01244391A
公开(公告)日：1989-09-28
申请号：JP6955888
申请日：1988-03-25
申请人： HITACHI LTD , JAPAN ATOMIC ENERGY RES INST
发明人： HAGIWARA KOJI , YAMAMOTO MASAHIRO , OGIWARA TOKUO , AKINO NOBORU , HOSOGANE NOBUYUKI
IPC分类号： G21B1/05 , G21B1/00 , G21B1/11
摘要： PURPOSE:To easily fix a sensor on a narrow space by fixedly securing a sensor on an attaching piece, fixing a stopper and a tightening means in a vessel, engaging the channel of the attaching piece with the stopper and fixing the attaching piece by the tightening means. CONSTITUTION:A channel 5 of length (l) and width (h) from an end part (a) and another channel 6 of length (l) and with (h) from another end part (b) are defined in an intermediate plate 7. A sensor 2 is fixed on the plate 7 by a cleat 3. In a state in which the sensor 2 and the intermediate plate 7 are integrated, they are inserted between the inner walls of a built-in material and a vacuum vessel, the channel 5 of the intermediate plate 7 is engaged with a stopper 8 to set the sensor 2 at the fixed position. The intermediate plate 7 is fixed by a tightening metal fitting 9.

4. 发明专利

JPH0141232B2 失效
公开(公告)号：JPH0141232B2
公开(公告)日：1989-09-04
申请号：JP15250882
申请日：1982-09-03
申请人： HITACHI LTD
发明人： HAGIWARA KOJI , SATO HIROSHI
IPC分类号： G21B1/11 , G21B1/00 , G21B1/17 , H05H1/12

5. 发明专利

JP2001110331A COLOR CATHODE-RAY TUBE 失效
公开(公告)号：JP2001110331A
公开(公告)日：2001-04-20
申请号：JP28803599
申请日：1999-10-08
申请人： HITACHI LTD , HITACHI ELECTRONIC DEVICES CO
发明人： SAKAMOTO EIJI , HOSOYA NOBUHIKO , HAGIWARA KOJI
IPC分类号： H01J29/07
摘要： PROBLEM TO BE SOLVED: To reduce bend quantity caused by spring back after shaping the shadow mask and prevent deformation of the principal plane of the shadow mask after fixing it with the mask frame. SOLUTION: This color cathode-ray tube is equipped with a tongue portion 26 projecting from the tip of a skirt portion 24 of the shadow mask, and a plurality of holes for absorbing stresses on both skirt portion 24 and tongue portion 26.

6. 发明专利

JPS586918B2 失效
公开(公告)号：JPS586918B2
公开(公告)日：1983-02-07
申请号：JP4998678
申请日：1978-04-28
申请人： HITACHI LTD
发明人： HAGIWARA KOJI , IMURA HIROYA
IPC分类号： B01J3/00 , G21B1/11 , G21B1/17 , G21B1/25

7. 发明专利

JPS5133297A 失效
公开(公告)号：JPS5133297A
公开(公告)日：1976-03-22
申请号：JP9712274
申请日：1974-08-26
申请人： HITACHI LTD
发明人： HAGIWARA KOJI , IMURA HIROYA
IPC分类号： F16J15/52 , G21B1/00 , G21B1/05 , G21B1/11 , G21B1/17 , H05B7/18

8. 发明专利

JPH0550167A HOOP STOCK FEEDER DEVICE 失效
公开(公告)号：JPH0550167A
公开(公告)日：1993-03-02
申请号：JP21338591
申请日：1991-08-26
申请人： HITACHI LTD
发明人： HAGIWARA KOJI , MIYAWAKI TOSHITSUGU
IPC分类号： B21D43/00 , B21D43/02
摘要： PURPOSE:To prevent a hoop stock from being pulled back, and to improve the reliability of a feed by providing a pulling-back preventing clamper for the hoop stock in the rear of a moving clamper of a hoop stock feeder for carrying the hook stock. CONSTITUTION:In a hoop stock feeder in which a moving clamper 4 is closed, clamps a hoop stock 5 and moves, and thereafter, the moving clamper 4 is opened and by an operation for returning to its original position, the hoop stock 5 is carried, a pulling-back preventing clamper 6 for clamping the hoop stock 5 at the time when the moving clamper 4 is opened and starts an operation for returning to its original position is provided in the mar of the moving clamper 4, therefore, it does not occur that the hoop stock 5 is pulled back by an operation by which the moving clamper 4 returns to its original position.

9. 发明专利

JPS6119091B2 JPS6119091B2 - 失效
公开(公告)号：JPS6119091B2
公开(公告)日：1986-05-15
申请号：JP12378279
申请日：1979-09-28
申请人： Hitachi Ltd
发明人： KIMURA HIDE , HAGIWARA KOJI , HOSHI AKIRA
IPC分类号： H01F6/00
CPC分类号： H01F6/00

10. 发明专利

JP2000011909A COLOR CATHODE-RAY TUBE HAVING SHADOW MASK 失效
公开(公告)号：JP2000011909A
公开(公告)日：2000-01-14
申请号：JP11527699
申请日：1999-04-22
申请人： HITACHI LTD , HITACHI ELECTRONIC DEVICES CO
发明人： ITO HIROYUKI , HAGIWARA KOJI
IPC分类号： H01J29/07
摘要： PROBLEM TO BE SOLVED: To provide a color cathode-ray tube that has a shadow mask for effectively reducing warp produced in the skirt part of the pressed shadow mask and preventing concentrated stress from being impressed on a perforated part in fitting the skirt part to a support frame. SOLUTION: In a color cathode-ray tube provided with a shadow mask composed of a perforated part 5U having a large number of electron beam passing holes, a non-perforated part 5N communicating with the perforated part 5U in the periphery of the perforated part 5U and a skirt part 5S vertically extended and bent from the edges of the non-perforated part 5N and in which the skirt part 5S is spot-welded to a support frame to fix it to the inside of a panel part, plural swelled parts 131-138, 141-1412 which extend throughout the entire peripheries of the longer sides and shorter sides of the shadow mask 5 in the height direction of the skirt part 5S are formed. Then, for each of the swelled parts 131-138, 141-1412, a depth P, width D, and distance L between the largest part of the depth and the edge part of the perforated part 5U are selected to be in the range of 0.2-1.0 mm, of 4.0-12.0 mm and not less than 4.5 mm, respectively.

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