Masashi Yoshida

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Suwa-shi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Zoom lens system
- Patent number 8,705,179
- Issue date Apr 22, 2014
- Nittoh Kogaku K.K.
- Masashi Yoshida
- G02 - OPTICS
Information Patent Grant
Projection zoom lens system and projector
- Patent number 6,870,689
- Issue date Mar 22, 2005
- NITTOH KOGAKU K.K.
- Masashi Yoshida
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
ZOOM LENS SYSTEM
- Publication number 20120212834
- Publication date Aug 23, 2012
- NITTOH KOGAKU K.K.
- Masashi Yoshida
- G02 - OPTICS