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Kazuo Yoshikawa
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Omiya, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Auxiliary imaging lens and imaging apparatus using the same
Patent number
6,583,939
Issue date
Jun 24, 2003
Fuji Photo Optical Co., Ltd.
Kazuo Yoshikawa
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Optical system for TV camera with still-taking function
Patent number
6,542,193
Issue date
Apr 1, 2003
Fuji Photo Optical Co., Ltd.
Kazuo Yoshikawa
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
TV lens with still-taking function
Patent number
6,185,044
Issue date
Feb 6, 2001
Fuji Photo Optical Co., Ltd.
Kazuo Yoshikawa
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Athermalized focal length extender for a zoom lens having a split r...
Patent number
6,104,546
Issue date
Aug 15, 2000
Fuji Photo Optical Co., Ltd.
Kazuo Yoshikawa
G02 - OPTICS
Information
Patent Grant
Zoom lens of the inner focusing type
Patent number
5,966,246
Issue date
Oct 12, 1999
Fuji Photo Optical Co., Ltd.
Kazuo Yoshikawa
G02 - OPTICS
Information
Patent Grant
Color separation prism
Patent number
5,777,673
Issue date
Jul 7, 1998
Fuji Photo Optical Co., Ltd.
Kazuo Yoshikawa
G02 - OPTICS
Information
Patent Grant
Color separation optical system for color television camera
Patent number
4,422,722
Issue date
Dec 27, 1983
Fuji Photo Optical Co., Ltd.
Takeshi Higuchi
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Optical system for color television cameras
Patent number
4,164,752
Issue date
Aug 14, 1979
Fuji Photo Optical Co., Ltd.
Yoshikazu Doi
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Patents Applications
last 30 patents
Information
Patent Application
Dual-use visible-light/infrared image pickup device
Publication number
20010026400
Publication date
Oct 4, 2001
Fuji Photo Optical Co., Ltd.
Kazuo Yoshikawa
G02 - OPTICS
Information
Patent Application
Auxiliary imaging lens and imaging apparatus using the same
Publication number
20010003493
Publication date
Jun 14, 2001
Kazuo Yoshikawa
G02 - OPTICS