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Kazuo Yoshikawa

USPTO Granted Patents = 11

Average Co-Inventor Count = 1.5

ph-index = 6

Forward Citations = 78(Granted Patents)

Location History:

Omiya, JA (1976)
Ohmiya, JP (1983)
Saitama-ken, JP (1998)
Omiya, JP (1979 - 2003)
Saitama, JP (2000 - 2007)

Company Filing History:

Fuji Photo Optical Co., Ltd.

Fujinon Corporation

Years Active: 1976-2007

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11 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 7233358 - Autofocus adaptor (2007-06-19),

2. 7095443 - Focusing state determining apparatus (2006-08-22),

3. 6583939 - Auxiliary imaging lens and imaging apparatus using the same (2003-06-24),

4. 6542193 - Optical system for TV camera with still-taking function (2003-04-01),

5. 6185044 - TV lens with still-taking function (2001-02-06),

6. 6104546 - Athermalized focal length extender for a zoom lens having a split rear (2000-08-15),

7. 5966246 - Zoom lens of the inner focusing type (1999-10-12),

8. 5777673 - Color separation prism (1998-07-07),

9. 4422722 - Color separation optical system for color television camera (1983-12-27),

10. 4164752 - Optical system for color television cameras (1979-08-14),

11. 3976363 - Optical system for color television camera (1976-08-24),

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