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1. 发明专利

JPH08315732A CORRECTING LENS MANUFACTURING MOLD AND CORRECTING LENS MANUFACTURED THEREBY AS WELL AS ITS MANUFACTURE 失效
公开(公告)号：JPH08315732A
公开(公告)日：1996-11-29
申请号：JP12100995
申请日：1995-05-19
申请人： MITSUBISHI ELECTRIC CORP
发明人： FUJIMURA TAKEO
IPC分类号： G02B3/08 , B29C33/38 , B29D11/00 , B29L11/00 , H01J9/227
摘要： PURPOSE: To provide such a mold as being capable of easily manufacturing a high-performance correcting lens used when manufacturing the fluorescent screen of a color picture tube. CONSTITUTION: An original mold 1A which has a smooth roughly-curved face is formed on one face of a plate solid material such as a heat-resistant metal, a ceramic and a glass. Then, it is cut at mutually parallel cut positions into a plural of band cut pieces 3C and the direction of these band elements 3C is changed 180 deg. in the original plane for re-arrangement, as the individual orders remain unchanged, to form a mold 1B.

2. 发明专利

JPH08287837A SHADOW MASK COLOR PICTURE TUBE 失效
公开(公告)号：JPH08287837A
公开(公告)日：1996-11-01
申请号：JP8691095
申请日：1995-04-12
申请人： MITSUBISHI ELECTRIC CORP
发明人： FUJIMURA TAKEO
IPC分类号： H01J29/02
摘要： PURPOSE: To provide a shadow mask color picture tube which can stably operate by maintaining good relations for compensation even if a working environmental temperature changes. CONSTITUTION: A shadow mask 3 is supported in a panel, and a heat radiation shield 15 composed of a lustrous metallic thin plate is installed so as to cover a surface where a first spring member 12A having a high thermal expansion coefficient positioned on the porous plate side is opposed to a panel skirt part 5 among bimetal springs 12 to correct influence of thermal expansion of the shadow mask 3. Therefore, when a environmental temperature is lowered, cooling of the first spring member can be prevented, and operational stability to an environmental temperature change can be improved.

3. 发明专利

JPH07288828A COLOR CATHODE RAY TUBE DISPLAY DEVICE 失效
公开(公告)号：JPH07288828A
公开(公告)日：1995-10-31
申请号：JP8159794
申请日：1994-04-20
申请人： MITSUBISHI ELECTRIC ENG , MITSUBISHI ELECTRIC CORP
发明人： FUJIMURA TAKEO
IPC分类号： H01J29/72 , H01J29/07 , H04N3/16 , H04N3/18 , H04N3/227 , H04N9/16 , H04N9/20
摘要： PURPOSE:To make moire stripes of the device unremarkable by deviating the arrangement of scanning lines from an equal interval with emphasis on a part of a fluorescent screen where moire stripes are remarkable but Y direction resolution is excellent. CONSTITUTION:In the shadow mask color cathode ray tube, a shadow mask 2 with lots of throughholes formed thereto regularly is arranged to a fluorescent screen toward an electron gun 3. Electron beams pass through the throughholes and reach the fluorescent screen 1. On the other hand, since the electron beams form scanning lines of nearly equal interval, moire stripes being unpleasant interference stripes may appear on the fluorescent screen 1 through the interference of two kinds of regular patterns. The display device is provided with a waveform generator 50 including a current ripple in a Y deflection current to cause the deflection that two adjacent scanning line intervals are changed in the scanning lines by the electron beams and every other scanning line interval is the same. The moire stripes are made unremarkable by deviating the arrangement of scanning lines from an equal interval with emphasis on a part of a fluorescent screen where moire stripes are remarkable but Y direction resolution is excellent based on the action of the source 50.

4. 发明专利

JPH0582046A COLOR IMAGE RECEIVING TUBE SHADOW MASK AND MANUFACTURE THEREOF 失效
公开(公告)号：JPH0582046A
公开(公告)日：1993-04-02
申请号：JP23905691
申请日：1991-09-19
申请人： MITSUBISHI ELECTRIC CORP
发明人： FUJIMURA TAKEO
IPC分类号： H01J9/14 , H01J29/07
摘要： PURPOSE:To decrease occurrence of so-called local doming as a phenomenon in which a shadow mask locally heated by bombardment with electron beam gets swollen. CONSTITUTION:In at least one of the sections including the normal to the extension surface of a metal plate 2A as a constituent member of a shadow mask, the plate thickness is partially lessened from the front side of the metal plate 2A, and thereby a plurality of thicker parts 23 and ultra-thin parts 24 are formed on the section or sections, and the spacing of the ultra-thin parts 24 which become phase is set to 20-300 times as large as the thickness of the thicker parts.

5. 发明专利

JPH0230039A SHADOW MASK OF COLOR CATHODE-RAY TUBE 失效
公开(公告)号：JPH0230039A
公开(公告)日：1990-01-31
申请号：JP10814988
申请日：1988-04-28
申请人： MITSUBISHI ELECTRIC CORP
发明人： FUJIMURA TAKEO
IPC分类号： H01J29/07
摘要： PURPOSE:To remove restriction on the diameter of a pore referring to the plate thickness of a shadow mask by making pass pores of electron beam in alignment at the respective prescribed positions of 2 plates and lying one of the 2 plates upon the other such that the respective pores of both plates correspond to one another and also by uniting them with an engaging means. CONSTITUTION:A shadow mask 1 consists of a polymer of 2 plates 11 and 21, and is constituted of metal plates. One 11 of both plates has a thickness necessary for keeping the strength of the mask 1, and a pore 122 for passing an electron beam is made in the plate 11. The other plate 21 made up of plate material which is thin at such a degree that a pore in a size necessary for operation of a color cathode ray tube can be made with good accuracy, and a pore 22 to pass a beam is made in this plate 21. The side wall of the pore 12 in the plate 11 has a tapered face 14 which inclines toward one face. Moreover, many projections 6 are made on the side of the reduced diameter pore of the pore 12 of the plate 11. The pore 22 of the plate 21 is made up of tapered faces 22 and 25 where the pore diameter is expanded toward the surface and back sides. This plate 21 has a positioning pore 7 to engage with the projection 6. The mask 1 is made such that the projections 6 of both the plates 11 and 21 engage with the pores 7, respectively.

6. 发明专利

JPH0145700B2 失效
公开(公告)号：JPH0145700B2
公开(公告)日：1989-10-04
申请号：JP12812779
申请日：1979-10-04
申请人： MITSUBISHI ELECTRIC CORP
发明人： FUJIMURA TAKEO , KAWAGUCHI TAKEO
IPC分类号： H01J29/51 , H01J29/70

7. 发明专利

JPS6471038A STRETCH TYPE SHADOW MASK 失效
公开(公告)号：JPS6471038A
公开(公告)日：1989-03-16
申请号：JP22881387
申请日：1987-09-10
申请人： MITSUBISHI ELECTRIC CORP
发明人： FUJIMURA TAKEO
IPC分类号： H01J29/07
摘要： PURPOSE:To use a lightweight frame and to prevent the generation of bending and deformation by forming the installing surface of a porous plate to a frame in a surface with at least four projections and hollows the axial direction, and stretching the porous plate on the installing surface. CONSTITUTION:Since a porous plate 2 is almost a perfect plane near the center of the porous plate 2, while it has projections and hollows on the surface installing to the frame 10 at the periphery, the porous plate 2 is stretched on condition that the tensile force in the direction to the extension of the frame 10 in the periphery of the porous plate 2 is larger necessarily than the average tensile force at the center when it is installed to the frame 10. The increase of the tensile force in the direction to the extension of the frame 10 brings some increase also in the square directions, that is, in the radial directions from the center 0, but the tensile force is generated in the radial directions passing the center 0 of the porous plate 2. The average tensile force at the periphery of the porous plate 2 can be increased without increasing too much the tensions acting between A and C, or B and D, for example. In other words, the generation of harmful wrinkles at the periphery can be reduced without increasing the burden to the frame 10 too much.

8. 发明专利

JPS6367311B2 失效
公开(公告)号：JPS6367311B2
公开(公告)日：1988-12-23
申请号：JP14848983
申请日：1983-08-11
申请人： MITSUBISHI ELECTRIC CORP
发明人： FUJIMURA TAKEO
IPC分类号： H01J29/07

9. 发明专利

JPS61192192A COLOR PICTURE TUBE DEVICE 失效
公开(公告)号：JPS61192192A
公开(公告)日：1986-08-26
申请号：JP3372685
申请日：1985-02-20
申请人： MITSUBISHI ELECTRIC CORP
发明人： FUJIMURA TAKEO
IPC分类号： H04N3/23 , H04N3/22 , H04N9/28
摘要： PURPOSE:To precisely compensate a concentration error, by introducing a double balanced mixer D.B.M with 2 transformers and 4 diodes mutually connected in the forward direction. CONSTITUTION:Diodes 210a-210d are connected in the form of a ring, and both ends of a second coil 202a of a transformer 200a at one side are connected to the common junctions of the diodes 210a and 210d and the common junctions of the diodes 210b and 210c, respectively. Further, both ends of the second coil 202b of a transformer 200b at another side are connected to the common junctions of the diodes 210a and 210b and the common junctions of the diodes 210c and 210d, respectively. Here, if the current proportional to the horizontal deflecting current is applied to either of the terminal pair A1 and A2 that the first coil of the transformer at one side of the D.B.M and the terminal pair B1 and B2 that the second coil middle taps of both transformers are connected and the current proportional to the vertical deflecting current is applied to another side, the signals proportional to the product of both signals can be fetched from the terminals C1 and C2.

10. 发明专利

JPS6124779B2 JPS6124779B2 - 失效
公开(公告)号：JPS6124779B2
公开(公告)日：1986-06-12
申请号：JP3457679
申请日：1979-03-23
申请人： Mitsubishi Electric Corp
发明人： FUJIMURA TAKEO
IPC分类号： H01J31/20 , H01J29/07

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