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61. 发明专利

JPS51126162A OPTICAL INFORMATION RECORDING UNIT 失效
公开(公告)号：JPS51126162A
公开(公告)日：1976-11-04
申请号：JP4499675
申请日：1975-04-14
申请人： VICTOR COMPANY OF JAPAN
发明人： KAYANUMA KANJI
IPC分类号： G03B13/36 , G02B7/36 , G02B27/02 , G11B7/00 , G11B7/09 , H04N5/84
摘要： PURPOSE:Optical information recording unit, as thep hoto signal, applies the light with the wavelength effective for the sensitivity of the photo sensitive material used as a recording medium, utilizes the light with the wavelength longer than the above, transmits the detected light to the recording medium in order for automatic control, and irradiates the photo signal to the recording medium when necessary.

62. 发明专利

JPS5117411A 失效
公开(公告)号：JPS5117411A
公开(公告)日：1976-02-12
申请号：JP8966774
申请日：1974-08-05
申请人： VICTOR COMPANY OF JAPAN
发明人： KAYANUMA KANJI
IPC分类号： G11B7/085 , G11B7/08

63. 发明专利

JPS5117407A 失效
公开(公告)号：JPS5117407A
公开(公告)日：1976-02-12
申请号：JP8813474
申请日：1974-08-02
申请人： VICTOR COMPANY OF JAPAN
发明人： KAYANUMA KANJI
IPC分类号： G11B7/09 , G11B7/08

64. 发明专利

JP2004006044A METHOD FOR REPRODUCING OPTICAL RECORDING MEDIUM 审中-公开
公开(公告)号：JP2004006044A
公开(公告)日：2004-01-08
申请号：JP2003315120
申请日：2003-09-08
申请人： VICTOR COMPANY OF JAPAN
发明人： NISHIZAWA AKIRA , KAYANUMA KANJI
IPC分类号： G11B20/10 , G11B7/005 , G11B7/007 , G11B20/12
摘要： PROBLEM TO BE SOLVED: To provide a method for reproducing an optical recording medium, which is excellent in security. SOLUTION: This method for reproducing the optical recording medium, wherein a reflection layer 13 made of at least light reflective material is provided in a light transmissive substrate 12 with a pit string forming a recessed and projecting shape corresponding to encrypted information formed over a plurality of tracks, and a laser beam emitted from an opposite surface side on which the pit strings of the light transmissive substrate 12 are formed detects the recessed and projecting shape of the pit strings, thereby reproducing the information comprises the steps for: detecting key information for decrypting the encrypted information recorded in prescribed areas of the tracks; detecting the recessed and projecting shape of the pit strings to reproduce the encrypted information; and decrypting the encrypted information based on the key information. COPYRIGHT: (C)2004,JPO

65. 发明专利

JP2001236006A RECORDING DEVICE FOR RECORDING MEDIUM AND RECORDING MEDIUM 失效
公开(公告)号：JP2001236006A
公开(公告)日：2001-08-31
申请号：JP2000044084
申请日：2000-02-22
申请人： VICTOR COMPANY OF JAPAN
发明人： KAYANUMA KANJI
IPC分类号： B42D15/10 , G03H1/26 , G06K1/12 , G06K19/06
摘要： PROBLEM TO BE SOLVED: To provide a recording medium in which a hologram pattern with a further enhanced effect to prevent forgery is formed. SOLUTION: The medium has a recording part 10B where specified hologram patterns 10B1, 10B2 are formed in a specified position on one face 10A1 of a substrate 10A and has a protective film 10C laminated on the face 10A1 of the substrate 10A through the recording part 10B. The identification information is recorded in the specified parts of the hologram patterns 10B1, 10B2.

66. 发明专利

JP2001142379A OPTICAL RECORDING MEDIUM AND ITS REPRODUCING DEVICE 失效
公开(公告)号：JP2001142379A
公开(公告)日：2001-05-25
申请号：JP32381999
申请日：1999-11-15
申请人： VICTOR COMPANY OF JAPAN
发明人： KAYANUMA KANJI , NISHIKAWA KOICHIRO
IPC分类号： G11B7/0065 , G03H1/02 , G03H1/04
摘要： PROBLEM TO BE SOLVED: To accurately read diffracted light even for the obliquely irradiating light. SOLUTION: The diffused light of a light source 11 is collimated to parallel beams by a convex lens 12, and the parallel beams are transmitted through a half mirror 13, condensed to the light (incident angle i=0) going toward the center axis O of a cylinder by a convex type cylindrical lens 14, and made incident on and reflected and diffracted by a hologram surface. The diffracted light is collimated to parallel beams by the lens 14, and the parallel beams are reflected by the mirror 13 and formed into an image on an image-formation surface 16 by a convex lens 15.

67. 发明专利

JP2000259797A OPTICAL RECORDING MEDIUM AND INFORMATION READER FOR OPTICAL RECORDING MEDIUM 失效
公开(公告)号：JP2000259797A
公开(公告)日：2000-09-22
申请号：JP6528399
申请日：1999-03-11
申请人： VICTOR COMPANY OF JAPAN
发明人： KAYANUMA KANJI , SAKANE MANABU , NAMIKI KAZUNORI
IPC分类号： G06K19/06 , B42D15/10 , G06K7/12 , G11B7/00 , G11B7/0065 , G11B7/12 , G11B7/24
摘要： PROBLEM TO BE SOLVED: To make readable a hologram pattern representing information even in an image pickup system whose exposure time is relatively long and also to make readable it regardless of the carrying direction. SOLUTION: Plural pieces of information CGH 12 representing information are arranged in the carrying direction at a prescribed pitch, plural controls CGH 13 for generating a timing signal that successively reads the information CGH 12 while carried are also arranged in the carrying direction, the controls CGH 13 are arranged so that three or more kinds of hologram patterns whose diffraction characteristics are different can be arranged in the carrying direction in a prescribed order so as also to bring their boundaries into contact, and the information CGH 12 is arranged at a pitch doubling the length in carrying direction so as also to make the end part in the carrying direction coincide with the boundaries of the controls CGH 13.

68. 发明专利

JPH103696A INFORMATION RECORDING MEDIUM 失效
公开(公告)号：JPH103696A
公开(公告)日：1998-01-06
申请号：JP17303896
申请日：1996-06-12
申请人： VICTOR COMPANY OF JAPAN
发明人： KAYANUMA KANJI
IPC分类号： G11B23/36 , G11B7/00 , G11B7/0033 , G11B7/0055 , G11B7/24
摘要： PROBLEM TO BE SOLVED: To make possible recording valuable information, to prevent the valuable information from altering and to make possible always and normally DRAWing/reproducing the information by constituting respective reproducing only areas with a scan guide area and an address area. SOLUTION: Many unit information areas 11a-11n constituted of information DRAWable recording areas 11a3-11n3 (n: integer) and the reproducing only areas beforehand recording the informa1ion required for recording/reproducing/ erasing/scanning the DRAWable areas 11a3-11n3 are recorded on the same substrate 10. The reproducing only areas consist of the scan guide areas (empty groove part) 11a1-11n1 and the address areas (synchronous part) lla2-lln2. The unit information areas 11a-11n are rectangular shape information recording media arranging linear tracks at every area.

69. 发明专利

JPS6050099B2 失效
公开(公告)号：JPS6050099B2
公开(公告)日：1985-11-06
申请号：JP502178
申请日：1978-01-20
申请人： VICTOR COMPANY OF JAPAN
发明人： KAYANUMA KANJI , HIRATA ATSUMI , ONOE HIDEO
IPC分类号： H04N5/073 , H04N5/262 , H04N5/278 , H04N5/44 , H04N5/445

70. 发明专利

JPS60217506A MAGNETIC HEAD 失效
公开(公告)号：JPS60217506A
公开(公告)日：1985-10-31
申请号：JP7351184
申请日：1984-04-12
申请人： VICTOR COMPANY OF JAPAN
发明人： KAYANUMA KANJI
IPC分类号： G11B5/127 , G11B5/00 , G11B5/02 , G11B5/187 , G11B11/105
摘要： PURPOSE:To attain the satisfactory recording and erasion even with small intensity of a magnetic field by using a member which transmits a laser luminous flux to form a magnetic gap part and supplying the laser light to said gap part in a recording or erasing mode to heat a magnetic film. CONSTITUTION:A magnetic gap part is formed at the tip of a core 1 of a magnetic head with a member 3 that transmits a laser luminous flux. Then the laser luminous flux given form a laser light source 4 is supplied to the magnetic gap part through an optical path 5 in a recording or erasing mode of the information signal. Thus the magnetic film of a magnetic recording medium is heated up to a temperature approximate to a Curie point. This ensures the satisfactory recording of the information signal to the magnetic film of the recording medium despite small intensity of a magnetic field produced at the magnetic gap part. At the same time, the signals recorded on the magnetic film can be erased satisfactorily.

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