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41. 发明专利

JPS51143344A POLARIZING PLATE 失效
公开(公告)号：JPS51143344A
公开(公告)日：1976-12-09
申请号：JP6653275
申请日：1975-06-04
申请人： HITACHI LTD
发明人： MATSUYAMA SHIGERU , MARUYAMA AKIO , KAMIYAMA MASAHARU , YAJIMA TAKASHI
IPC分类号： G02B5/30 , G02F1/13 , G02F1/1335
摘要： PURPOSE:To eliminate phase difference of a polarizing plate by sticking a moistureproof film together with the plate.

42. 发明专利

JPS51122394A LIQUID CRYSTAL DISPLAY 失效
公开(公告)号：JPS51122394A
公开(公告)日：1976-10-26
申请号：JP4648175
申请日：1975-04-18
申请人： HITACHI LTD
发明人： SHINDOU YASUHIKO , MARUYAMA AKIO
IPC分类号： G09F9/00 , G02F1/13 , G02F1/1335 , G09F9/30
摘要： PURPOSE:To concentrate scattering characteristics output from the liquid crystal display, which contains a passive reflector, into the direction from which the display is most frequently viewed so that the brightness of displays will increase.

43. 发明专利

JPH05128589A RECORDING METHOD FOR OPTICAL INFORMATION AND RECORDING MEDIUM THEREFOR 失效
公开(公告)号：JPH05128589A
公开(公告)日：1993-05-25
申请号：JP17500191
申请日：1991-07-16
申请人： HITACHI LTD
发明人： TOKUJIYUKU NOBUHIRO , YANAGIHARA HITOSHI , MORIYA KOICHI , KUREBAYASHI MASAAKI , IMAI YORIMI , KONISHI KATSUO , TANAKA KATSUYUKI , GOTO NORIO , MARUYAMA AKIO , KODERA YOSHIE
IPC分类号： G11B7/00 , G11B7/0045 , G11B7/24
摘要： PURPOSE:To obtain a method for recording optical information which can record/reproduce at a high signal level and a recording medium for performing the same. CONSTITUTION:A phase of a groove provided on a board for tracking and a phase change before and after a recording layer is recorded are positively utilized. When the phase of a high reflectivity side of the layer is phih and the phase of a low reflectivity side is phi1, the groove is recorded at the time of phih phi1. Since the phase change of a recording film can be utilized, a signal level can be increased, and hence an optical information recording medium having high C/N or high S/N can be obtained.

44. 发明专利

JPS6253808B2 失效
公开(公告)号：JPS6253808B2
公开(公告)日：1987-11-12
申请号：JP3546479
申请日：1979-03-28
申请人： HITACHI LTD
发明人： MARUYAMA AKIO , SATO TADASHI
IPC分类号： G02F1/13 , G02F1/1337 , G09F9/00

45. 发明专利

JPS6158007B2 失效
公开(公告)号：JPS6158007B2
公开(公告)日：1986-12-09
申请号：JP11170578
申请日：1978-09-13
申请人： HITACHI LTD
发明人： MARUYAMA AKIO
IPC分类号： G02F1/1335 , G02F1/133 , G02F1/1333 , G09F9/35

46. 发明专利

JPS607768B2 失效
公开(公告)号：JPS607768B2
公开(公告)日：1985-02-27
申请号：JP15093276
申请日：1976-12-17
申请人： HITACHI LTD
发明人： MARUYAMA AKIO , MYAZAKI KATSUHIRO , YOSHIDA SHINYA , NOBUTOKI SABURO
IPC分类号： G02B5/30 , C09J5/00 , G02F1/13 , G02F1/1335 , G09F9/00

47. 发明专利

JPS587746A MANUFACTURE OF VALVE EQUIPPED WITH ELECTRODE FOR PICKUP TUBE 失效
公开(公告)号：JPS587746A
公开(公告)日：1983-01-17
申请号：JP10558481
申请日：1981-07-08
申请人： HITACHI LTD
发明人： MARUYAMA AKIO
IPC分类号： H01J31/38 , H01J9/32 , H01J29/86
摘要： PURPOSE:To improve productivity and yield along with the refinement of image quality by providing an opening part through one part of a valve, applying a nessa solution on the opening part and on the outer surface, and inside the valve, and calcining them, filling low-melting glass into the opening part, and by calcining said glass and hermetically sealing the opening part. CONSTITUTION:Calcined nessa 12a and 12b are formed on the internal and external surfaces 10, 11 of a valve 1, respectively, and these calcined nessa 12a, 12b are connected with calcined nessa through the round hole opening part 13. Moreover, low-melting glass 14 is filled into the opening part 13, permitting spaces inside the valve and between the external surfaces 10, 11 to be hermetically sealed. Furthermore a projection part 15 is provided on a mesh electrode 3 making contact with the clacined nessa 12a, and said projection part acts to supply voltage to the mesh electrode 3 and is provided with function to fix the electrode 3 to the valve 1. Hereby, it is possible to raise the accuracy of the parallelism between a photo conductive film and a mesh part and to improve the yield and productivity along with the refinement of image quality.

48. 发明专利

JPS55146417A PRODUCTION OF LIQUID CRYSTAL DISPLAY ELEMENT 失效
公开(公告)号：JPS55146417A
公开(公告)日：1980-11-14
申请号：JP5423579
申请日：1979-05-04
申请人： HITACHI LTD
发明人： MARUYAMA AKIO
IPC分类号： G02F1/1337 , G02F1/133 , G09F9/00
摘要： PURPOSE:To reduce production processes and produce the display element of superior quality by forming an empty cell from two sheets of electrode substrate having electrode pattern erasing films then forming orientation films on said erasing film surfaces and injecting and sealing liquid crystal composition into the cell. CONSTITUTION:Two sheets of electrode substrates 3 which comprise providing pattern electrodes 2 on substrates 1 and forming pattern erasing films 4 on the electrodes 2 are bonded at the peripheral part excluding the portions of injection holes 5 by using low-melting point glass (adhesive agent) 6, whereby an empty cell is formed. Next, an orienting agent is filled through the injection ports 5 into the cell and after leaving the cell for a while, the cell is rotated to discharge the excess orienting agent through the injection holes 5 by centrifugal force. Thence, heat treatment is applied to form orientation films 7 on the cell inside surfaces. Next, one of the injection holes 5 is hermeticaly sealed by sealing body 8, after which liquid crystal composition is injection into the cell through the other injection hole 5 by a vacuum injection method and the injection hole 5 is hermeticlly sealed by sealing body 9, whereby the liquid crystal display element is provided.

49. 发明专利

JPS53105194A SELF LUMINOUS BODY 失效
公开(公告)号：JPS53105194A
公开(公告)日：1978-09-13
申请号：JP1922277
申请日：1977-02-25
申请人： HITACHI LTD
发明人： MARUYAMA AKIO , ISHIBASHI TADASHI , ODAWARA KOUZOU
IPC分类号： C09K11/04 , C09K11/00 , G02F1/13 , G02F1/1335 , G09F9/00 , H01J65/08
摘要： PURPOSE:To increase the quality of desplay, by constituting that the transmission and reflection of external incident light and phosphorescence and fluorescence are effectively performed, and obtaining the phosphorescence and fluorescence which is uniform and high luminance with normally stable condition.

50. 发明专利

JPS5398852A LUMINOUS STRUCTURING BODY 失效
公开(公告)号：JPS5398852A
公开(公告)日：1978-08-29
申请号：JP1241577
申请日：1977-02-09
申请人： HITACHI LTD
发明人： MARUYAMA AKIO , ISHIBASHI TADASHI , ODAWARA KOUZOU , KAWAMURA KEIYOSHI
IPC分类号： C09K11/04 , G02F1/1335 , G02F1/13357 , G09F9/00
摘要： PURPOSE:To make a luminous structuring body as a plane light source of a relatively small size adaptable for liquid crystal type wristwatches, etc. by hermet ically sealing radioactive substance and phosphor which emits light by being excited thereby within a transparent case.

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