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Yasunori Arai
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Fuchu, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Encoded data recording apparatus and mobile terminal
Patent number
8,503,864
Issue date
Aug 6, 2013
Fujitsu Mobile Communications Limited
Seiji Oura
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Resolution increasing apparatus
Patent number
8,223,832
Issue date
Jul 17, 2012
Kabushiki Kaisha Toshiba
Ryusuke Hirai
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Encoded data recording apparatus and mobile terminal
Patent number
7,376,330
Issue date
May 20, 2008
Kabushiki Kaisha Toshiba
Seiji Oura
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Terminal and system for multimedia communications
Patent number
6,515,695
Issue date
Feb 4, 2003
Kabushiki Kaisha Toshiba
Jun Sato
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Cartridge shutter actuating device in .Iadd.a Magneto optical .Iadd...
Patent number
RE35396
Issue date
Dec 10, 1996
Nakamichi Corporation
Yoshihisa Inoue
360 - Dynamic magnetic information storage or retrieval
Information
Patent Grant
Imaging optical system for compensating change of temperature
Patent number
5,412,510
Issue date
May 2, 1995
Asahi Kogaku Kogyo Kabushiki Kaisha
Takashi Iizuka
G02 - OPTICS
Information
Patent Grant
Structure for holding an optical article
Patent number
5,396,487
Issue date
Mar 7, 1995
Asahi Kogaku Kogyo Kabushiki Kaisha
Tetsuya Abe
G02 - OPTICS
Information
Patent Grant
Projection lens system
Patent number
5,388,003
Issue date
Feb 7, 1995
Asahi Kogaku Kogyo Kabushiki Kaisha
Kazuhiro Naganuma
G02 - OPTICS
Information
Patent Grant
Optical device
Patent number
5,291,241
Issue date
Mar 1, 1994
Asahi Kogaku Kogyo Kabushiki Kaisha
Hiroyuki Hirano
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Apparatus for combining and projecting images
Patent number
5,283,599
Issue date
Feb 1, 1994
Asahi Kogaku Kogyo Kabushiki Kaisha
Yasuyuki Tejima
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Magnifying projecting lens
Patent number
5,278,698
Issue date
Jan 11, 1994
Asahi Kogaku Kogyo Kabushiki Kaisha
Takashi Iizuka
G02 - OPTICS
Information
Patent Grant
Recording and/or reproducing apparatus with vibration isolation means
Patent number
5,163,038
Issue date
Nov 10, 1992
Nakamichi Corporation
Yasunori Arai
G11 - INFORMATION STORAGE
Information
Patent Grant
Shading board for copying apparatus
Patent number
5,066,987
Issue date
Nov 19, 1991
Asahi Kogaku Kogyo Kabushiki Kaisha
Nobutaka Minefuji
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Recording and/or reproducing apparatus with cartridge lock mechanism
Patent number
5,005,093
Issue date
Apr 2, 1991
Nakamichi Corporation
Yoshihisa Inoue
G11 - INFORMATION STORAGE
Information
Patent Grant
Cartridge shutter actuating device in recording and/or reproducing...
Patent number
4,992,896
Issue date
Feb 12, 1991
Nakamichi Corporation
Yoshihisa Inoue
G11 - INFORMATION STORAGE
Information
Patent Grant
Optical device for varying magification
Patent number
4,974,948
Issue date
Dec 4, 1990
Asahi Kogaku Kogyo Kabushiki Kaisha
Yasunori Arai
G02 - OPTICS
Information
Patent Grant
Cartridge shutter actuating device in recording and/or reproducing...
Patent number
4,899,238
Issue date
Feb 6, 1990
Nakamichi Corporation
Yoshihisa Inoue
G11 - INFORMATION STORAGE
Information
Patent Grant
Reflecting/refractive optical system
Patent number
4,840,472
Issue date
Jun 20, 1989
Asahi Kogaku Kogyo Kabushiki Kaisha
Yasunori Arai
G02 - OPTICS
Information
Patent Grant
Zoom lens for use in copying
Patent number
4,832,465
Issue date
May 23, 1989
Asahi Kogaku Kogyo Kabushiki Kaisha
Yasunori Arai
G02 - OPTICS
Information
Patent Grant
Color separation optical reading apparatus
Patent number
4,819,035
Issue date
Apr 4, 1989
Asahi Kogaku Kogyo Kabushiki Kaisha
Yasunori Arai
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Wide angle reading lens system
Patent number
4,781,449
Issue date
Nov 1, 1988
Asahi Kogaku Kogyo Kabushiki Kaisha
Jun Hirakawa
G02 - OPTICS
Information
Patent Grant
Reading lens system
Patent number
4,773,746
Issue date
Sep 27, 1988
Asahi Kogaku Kogyo Kabushiki Kaisha
Yasunori Arai
G02 - OPTICS
Information
Patent Grant
Five-element copying zoom lens system
Patent number
4,735,496
Issue date
Apr 5, 1988
Asahi Kogaku Kogyo Kabushiki Kaisha
Yasunori Arai
G02 - OPTICS
Information
Patent Grant
Variable magnification copying optical system
Patent number
4,676,632
Issue date
Jun 30, 1987
Asahi Kogaku Kogyo Kabushiki Kaisha
Yasunori Arai
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Focal position adjusting device for small variable-magnification ty...
Patent number
4,618,253
Issue date
Oct 21, 1986
Asahi Kogaku Kogyo K.K.
Yasunori Arai
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Variable-power copying lens
Patent number
4,597,641
Issue date
Jul 1, 1986
Asahi Kogaku Kogyo Kabushiki Kaisha
Yasunori Arai
G02 - OPTICS
Information
Patent Grant
Variable magnification type optical copier in which the copying siz...
Patent number
4,474,462
Issue date
Oct 2, 1984
Asahi Kogaku Kogyo Kabushiki Kaisha
Ryota Ogawa
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Wide-angle photographic lens
Patent number
4,468,100
Issue date
Aug 28, 1984
Asahi Kogaku Kogyo Kabushiki Kaisha
Takayuki Itoh
G02 - OPTICS
Information
Patent Grant
Large-aperture telephoto lens
Patent number
4,447,137
Issue date
May 8, 1984
Asahi Kogaku Kogyo Kabushiki Kaisha
Yasunori Arai
G02 - OPTICS
Information
Patent Grant
Variable magnification copying device
Patent number
4,420,248
Issue date
Dec 13, 1983
Asahi Kogaku Kogyo Kabushiki Kaisha
Ryota Ogawa
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Patents Applications
last 30 patents
Information
Patent Application
RESOLUTION INCREASING APPARATUS
Publication number
20100128170
Publication date
May 27, 2010
Kabushiki Kaisha Toshiba
Ryusuke Hirai
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
Encoded data recording apparatus and mobile terminal
Publication number
20030007556
Publication date
Jan 9, 2003
Seiji Oura
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Charging control system and terminal
Publication number
20020002470
Publication date
Jan 3, 2002
KABUSHIKI KAISHA TOSHIBA
Yasunori Arai
G06 - COMPUTING CALCULATING COUNTING