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1. 发明专利

JPH0553134A PHOTOCONDUCTION TYPE LIQUID CRYSTAL VALVE 失效
公开(公告)号：JPH0553134A
公开(公告)日：1993-03-05
申请号：JP21881991
申请日：1991-08-29
申请人： PIONEER ELECTRONIC CORP
发明人： IWASAKI MASAYUKI , YOKOI HIROSHI , YAMAJI TAKASHI , HATANO HIDEKI , YOSHIDA KENJI
IPC分类号： G02F1/135
摘要： PURPOSE:To provide the photoconduction type liquid crystal light valve having the high brightness of projecting light to writing light and has an adequate brightness response characteristic. CONSTITUTION:This photoconduction type liquid crystal 11 light valve has a pair of electrodes 18, 19 and a photoconductive layer 30 and liquid crystal layer 11 disposed between the electrodes 18 and 19. The dielectric anisotropy of this liquid crystal layer is negative and the major axis of the liquid crystal molecules orient approximately perpendicularly to the electrodes 18, 19 when the liquid crystal is not impressed with a voltage. The liquid crystal layer 11 has the refractive index anisotropy and film thickness satisfying 0.3mum

2. 发明专利

JPH04143733A PHOTOCONDUCTION TYPE LIQUID CRYSTAL LIGHT VALVE 失效
公开(公告)号：JPH04143733A
公开(公告)日：1992-05-18
申请号：JP26816890
申请日：1990-10-04
申请人： PIONEER ELECTRONIC CORP
发明人： YOKOI HIROSHI , HATANO HIDEKI , IWASAKI MASAYUKI , YAMAJI TAKASHI
IPC分类号： G02F1/1333 , G02F1/135
摘要： PURPOSE:To joining transparent substrates across a uniform gap and to obtain a projection image with superior resolution by making the coefficient of thermal expansion of the transparent substrate which seals a write side smaller than that of the transparent substrate which seals a read side. CONSTITUTION:The 1st transparent substrate A which is arranged on the write side and the 2nd transparent substrate B which is arranged on the read side are sealed with thermosetting resin 22 at high temperature with liquid crystal orienting films 4 and 3 in while the proper gap is held by spacers 2. The coefficient alphaB of thermal expansion of the substrate B is larger than the coefficient alphaA of the substrate A, so the substrate B absorbs the curvature of the substrate A which is generated at the time of the filming of a-Si in addition to the thermal expansion of the substrate A which is caused at the time of heating and the thermosetting resin 22 is solidified in this state, so that while the substrates A and B are united after being cooled, the external abutting surface of a fiber plate 11 is corrected into a plane. Consequently, the photoconduction type liquid crystal light valve which forms a projection image with superior resolution while the gap is uniformed is obtained.

3. 发明专利

JPH03259182A LIQUID CRYSTAL DISPLAY DEVICE 失效
公开(公告)号：JPH03259182A
公开(公告)日：1991-11-19
申请号：JP5773890
申请日：1990-03-08
申请人： PIONEER ELECTRONIC CORP
发明人： TAKANO TOMOMITSU , HATANO HIDEKI , YOKOI HIROSHI , IWASAKI MASAYUKI , YAMAJI TAKASHI
IPC分类号： G02F1/135 , G02F1/13 , G09F9/35 , G09G3/18
摘要： PURPOSE:To put the position of the flaw of a screen to the end of the screen by specifying the relation of the frequency of an AC driving voltage applied between a pair of transparent electrodes and the number of frames a second as the scanning speed of a two-dimensional screen. CONSTITUTION:This liquid crystal display device is constituted so that a voltage source 22 applying the AC driving voltage of the frequency (f) between a pair of the transparent electrodes 18 and 19, and a writing optical system 2 carrying out writing in a liquid crystal light bulb 1 while the two-dimensional screen composed of x-scanning lines is scanned at the speed of n-frames/seconds with writing light beams, are included, and conditions where nx/2f becomes an integer number is satisfied. Thus, each of the driving frequency (f), the number of scanning lines (x) and the number of frames (n) are constituted of the conditions where the nx/2f becomes the integer number is complied, so that the position of the defect of the screen caused by the nonresponse of liquid crystal at the positive/negative timing of the driving voltage is put to the end of the screen.

4. 发明专利

JPS62217408A ERASING HEAD 失效
公开(公告)号：JPS62217408A
公开(公告)日：1987-09-24
申请号：JP5831486
申请日：1986-03-18
申请人： PIONEER ELECTRONIC CORP
发明人： ONOE ATSUSHI , YOKOI HIROSHI , MIYAGUCHI SATOSHI
IPC分类号： G11B5/127
摘要： PURPOSE:To maintain a high erasion rate by forming a thin film having a magnetic permeability on the joint surface generated on the opposite surface of a front gap which becomes a magnetic gap of an erasing head, at the time of joining a center core and a side core. CONSTITUTION:A groove 9 which becomes a winding window 5, a slant face 10 for filling the glass 15, and a groove 11 for readjusting an erasion width are worked in a side core block 7 which becomes a side core 3. After polishing a butt surface 12 to a center core 4, a joint part to the center core 4 is covered with a mask 13, and in the remaining part, a metallic compound soft magnetic thin film 14 is formed by vapor-deposition, etc. Subsequently, both right and left side faces of a center core block 8 which becomes the center core 4 are polished and superposed on the side core block 7, and they are joined by making the glass 15 flow into a gap of the same thickness as the thin film 14 between both of them, the grove 11, and the slant face 10. Both the blocks 7, 8 which have been joined in this way are sliced to a necessary thickness after executing the curved surface working of a tape passing surface, and an erasing head block is obtained.

5. 发明专利

JPS60171609A MAGNETIC HEAD 失效
公开(公告)号：JPS60171609A
公开(公告)日：1985-09-05
申请号：JP2608684
申请日：1984-02-16
申请人： PIONEER ELECTRONIC CORP
发明人： TSUKAGOSHI NOBUHIRO , SATOU KAZUHIKO , MIYAGUCHI SATOSHI , TAKASU YUTAKA , YOKOI HIROSHI
IPC分类号： G11B5/255 , G11B5/187 , G11B5/21
摘要： PURPOSE:To obtain a magnetic head with which no one side wear occurs at the track section and gap section and which is excellent in the resistance to wear, by directly filling the track width controlling groove of the magnetic head composed of a pair of ''Sendust'' alloy bodies with glass whose working temperature range is lower than a specified temperature. CONSTITUTION:Winding grooves 7 and 8 and track width controlling grooves 5 and 5 are formed in a pair of blocks 1 and 2 made of ''Sendust'' alloy. Then a nonmagnetic layer 4 having a thickness which is equivalent to the half of the head gap length is formed on the surfaces of the blocks 1 and 2 by deposition, etc. Thereafter, the layers 4 are put together with silver solder 9 between the rear sections of the blocks 1 and 2 and the surfaces of the rear sections are welded to each other in one body by pressing and heating. After the above procedure, the grooves 5 and 5 are filled with glass 6 which melts at a temperature lower than the melting point of the sliver solder at a working temperature of

6. 发明专利

JPS6045908A PRODUCTION OF MAGNETIC HEAD 失效
公开(公告)号：JPS6045908A
公开(公告)日：1985-03-12
申请号：JP24212083
申请日：1983-12-23
申请人： PIONEER ELECTRONIC CORP
发明人： SATOU KAZUHIKO , YOKOI HIROSHI
IPC分类号： G11B5/127 , G11B5/17 , G11B5/187
摘要： PURPOSE:To improve working efficiency by providing the titled production method with a joining process for joining a pair of core semi-bodies with an interval of prescribed gap length to obtain a magnetic core block and a filling process for filling winding grooves with a bonding agent. CONSTITUTION:A pair of track width regulating grooves 5 are formed on the formation surface of the magnetic core semi-bodies 1, 2 constituting the magnetic core block rectangularly to the longitudinal direction of the magnetic core block and the gap formation surface is lapped and polished to perform mirror surface finishing. The magnetic core block 8 joined by silver wax is dipped into an epoxy bonding agent. The track width regulating groove 5 is filled with the bonding agent 9 after hardening the bonding agent by controlling the viscosity of the bonding agent. Said constitution makes it possible to improve the working efficiency without any trouble to the winding work of a coil.

7. 发明专利

JPS59231729A PRODUCTION OF MAGNETIC HEAD 失效
公开(公告)号：JPS59231729A
公开(公告)日：1984-12-26
申请号：JP10489983
申请日：1983-06-14
申请人： PIONEER ELECTRONIC CORP
发明人： SATOU KAZUHIKO , MIYAGUCHI SATOSHI , TAKASU YUTAKA , YOKOI HIROSHI , KOUNO SHIGERU , TOMITA YOSHIMI
IPC分类号： G11B5/127 , G11B5/147 , G11B5/23 , G11B5/42 , G11B5/12
摘要： PURPOSE:To obtain a magnetic head having a narrow gap of about 0.3mum and a metallic magnetic head by stacking a solder material to the rear gap formation part of a core half within a thickness range of 1/2-2 times as much as the prescribed gap length. CONSTITUTION:A solder material 7 such as a hard solder, etc. is stacked to a back gap formation part of core halves 1 and 1' with a thin film formation means like a vapor deposition process, etc. In this case, the film thickness is set at 1/2-2 times as much as prescribed gap length. Then a nonmagnetic material 8 is attached to the front gap formation part of the halves 1 and 1' respectively by 1/2 gap length by a vapor deposition process, a sputtering process, etc. The halves 1 and 1' set to each other and pressed for junction at a heat higher than the melting point of the solder material. The tape rubbing surface of such a joined core block is polished circularly and cut with a prescribed tilt at a track control groove part. Then both sides of the core block are polished to obtain a head chip.

8. 发明专利

JPS5837836A PRODUCTION OF MAGNETIC HEAD 失效
公开(公告)号：JPS5837836A
公开(公告)日：1983-03-05
申请号：JP13556481
申请日：1981-08-31
申请人： PIONEER ELECTRONIC CORP
发明人： SATOU KAZUHIKO , YOKOI HIROSHI
IPC分类号： G11B5/127 , G11B5/23
摘要： PURPOSE:To avoid increasing the forming width of a magnetic gap which is caused by the stress applied during a process and to improve the magnetic characteristics for a magnetic head, by forming comb-shaped grooves to a core block and annealing the core block while applying the pressure from outside. CONSTITUTION:Numbers of track width control grooves 1a2 and 1b2 are formed on the tip counter faces of core forming elements 1a and 1b. The nonmagnetic material layers 2a and 2b are formed on the gap forming surfaces of the elements 1a and 1b and soldered with a silver solder foil 3, etc. held between the layers 2a and 2b. Then comb-shaped grooves 5 are formed at a track part 4 between the grooves 1a2 and 1b2, and the forming part of a magnetic gap 1c at the tip of the elements 1a and 1b respectively is annealed while receiving the pressure from outside. Such core block 1 is cut and separated to be finished with a prescribed thickness and to obtain a magnetic head.

9. 发明专利

JPH09102393A ORGANIC ELECTROLUMINESCENT DISPLAY PANEL AND ITS MANUFACTURE 失效
公开(公告)号：JPH09102393A
公开(公告)日：1997-04-15
申请号：JP26022095
申请日：1995-10-06
申请人： PIONEER ELECTRONIC CORP
发明人： YOKOI HIROSHI , MIYAGUCHI SATOSHI , NAGAYAMA KENICHI , KUBOTA HIROFUMI , YOSHIDA KENJI , ISHIDA TAIZO
IPC分类号： H05B33/06 , H01L27/32 , H01L51/50 , H05B33/10 , H05B33/12 , H05B33/26 , H05B33/28
摘要： PROBLEM TO BE SOLVED: To provide an organic EL display panel and its manufacture which do not have medium layers and electrodes deteriorate their characteristics. SOLUTION: In a patterning process, a plurality of first display electrodes 3 corresponding to light emitting parts are formed on a substrate 2 and so are a plurality of terminal pads P there on the periphery of a picture image display arrangement area. In a remote formation process, at least a part of each of the first display electrodes is made to expose and there are formed electrically insulating partition walls 7 each having an overhang part 7a, which protrudes, as a whole, from the substrate and protrudes in the parallel direction to the substrate thereabove, and also having a partition wall end part 7b, which extends between neighboring terminal pads, demarcates a connection area Pa for electrically connecting the terminal pad and a second display electrode 9, and insulates the terminal pads from each other. There are included a light emitting layer forming process wherein at least one layer of film of the organic EL medium is formed by piling up an organic EL medium 8 on each of the exposed parts of the first display electrodes and a process wherein the second display electrodes are formed on a plurality of films of the organic EL medium and on a plurality of the connection areas of the terminal pads for connecting electrically the films and the terminal pads.

10. 发明专利

JPH0572007B2 失效
公开(公告)号：JPH0572007B2
公开(公告)日：1993-10-08
申请号：JP6087982
申请日：1982-04-14
申请人： PIONEER ELECTRONIC CORP
发明人： YASUDA SHINJI , SATO KAZUHIKO , SHIRAI YUKIO , MYAGUCHI SATOSHI , YOKOI HIROSHI , KONO SHIGERU
IPC分类号： G11B5/147 , G11B5/23 , G11B5/31

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