Yasushi Takahashi

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Iwate, JP

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Patents Grantslast 30 patents

Information Patent Grant
Wide-angle lens and image capturing apparatus
- Patent number 7,773,305
- Issue date Aug 10, 2010
- Ricoh Company, Ltd.
- Hayato Yoshida
- G02 - OPTICS
Information Patent Grant
Light scanning device
- Patent number 5,087,983
- Issue date Feb 11, 1992
- Ricoh Company, Ltd.
- Yasushi Takahashi
- G02 - OPTICS
Information Patent Grant
F.theta. lens system for use in light scanning device
- Patent number 4,846,539
- Issue date Jul 11, 1989
- Ricoh Company, Ltd.
- Yasushi Takahashi
- G02 - OPTICS

Patents Applicationslast 30 patents

Information Patent Application
WIDE-ANGLE LENS AND IMAGE CAPTURING APPARATUS
- Publication number 20090122422
- Publication date May 14, 2009
- Hayato Yoshida
- G02 - OPTICS