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Makoto Iki
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Tokyo, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Diffusion plate and method for manufacturing master die thereof
Patent number
6,221,561
Issue date
Apr 24, 2001
Asahi Kogaku Kogyo Kabushiki Kaisha
Hiroshi Kuboya
G02 - OPTICS
Information
Patent Grant
Method for manufacturing a master die for a diffusion plate and dif...
Patent number
5,965,327
Issue date
Oct 12, 1999
Asahi Kogaku Kogyo Kaisha
Hiroshi Kuboya
G02 - OPTICS
Information
Patent Grant
Method for manufacturing a master die for a diffusion plate and dif...
Patent number
5,733,710
Issue date
Mar 31, 1998
Asahi Kogaku Kogyo Kabushiki Kaisha
Hiroshi Kuboya
G02 - OPTICS
Information
Patent Grant
Collimating lens for optical system using semiconductor laser
Patent number
5,491,587
Issue date
Feb 13, 1996
Asahi Kogaku Kogyo Kabushiki Kaisha
Makoto Iwaki
G02 - OPTICS
Information
Patent Grant
Optical disk apparatus
Patent number
5,434,835
Issue date
Jul 18, 1995
Asahi Kogaku Kogyo Kabushiki Kaisha
Hisashi Konno
G11 - INFORMATION STORAGE
Information
Patent Grant
Compound prism
Patent number
5,402,269
Issue date
Mar 28, 1995
Asahi Kogaku Kogyo Kabushiki Kaisha
Masahiro Oono
G02 - OPTICS
Information
Patent Grant
Roof surface measuring apparatus
Patent number
5,379,105
Issue date
Jan 3, 1995
Asahi Kogaku Kogyo Kabushiki Kaisha
Makoto Iki
G01 - MEASURING TESTING
Information
Patent Grant
Device for and method of reducing cross talk in optical disk device
Patent number
5,373,437
Issue date
Dec 13, 1994
Asahi Kogaku Kogyo Kabushiki Kaisha
Tsuyoshi Itoh
G11 - INFORMATION STORAGE
Information
Patent Grant
Apparatus for adjusting optical axis including a beam shaping prism
Patent number
5,343,332
Issue date
Aug 30, 1994
Asahi Kogaku Kogyo Kabushiki Kaisha
Masahiro Oono
G02 - OPTICS
Information
Patent Grant
Apparatus for adjusting an optical axis including plates on opposit...
Patent number
5,341,246
Issue date
Aug 23, 1994
Asahi Kogaku Kogyo Kabushiki Kaisha
Masahiro Oono
G02 - OPTICS
Information
Patent Grant
Magneto-optic recording/reproduction apparatus for minimizing varia...
Patent number
5,297,114
Issue date
Mar 22, 1994
Asahi Kogaku Kogyo Kabushiki Kaisha
Tsuyoshi Itoh
G11 - INFORMATION STORAGE
Information
Patent Grant
Optical disk apparatus having a focusing error correcting system
Patent number
5,280,464
Issue date
Jan 18, 1994
Asahi Kogaku Kogyo Kabushiki Kaisha
Tsuyoshi Itoh
G11 - INFORMATION STORAGE
Information
Patent Grant
Apparatus for adjusting an optical axis including a laser beam sour...
Patent number
5,237,457
Issue date
Aug 17, 1993
Asahi Kogaku Kogyo Kabushiki Kaisha
Masahiro Oono
G02 - OPTICS
Information
Patent Grant
Compound prism including interfaces with curvatures of the order of...
Patent number
5,223,983
Issue date
Jun 29, 1993
Asahi Kogaku Kogyo Kabushiki Kaisha
Masahiro Oono
G02 - OPTICS