Tsutomu Yoshikawa

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Kawachinagano, JP

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Patents Grantslast 30 patents

Information Patent Grant
Illuminating apparatus, and projector using the illuminating apparatus
- Patent number 6,840,631
- Issue date Jan 11, 2005
- Minolta Co., Ltd.
- Shigeru Sawamura
- G02 - OPTICS
Information Patent Grant
Light guide support mechanism and supporting method
- Patent number 6,038,361
- Issue date Mar 14, 2000
- Minolta Co., Ltd.
- Tsutomu Yoshikawa
- G02 - OPTICS

Patents Applicationslast 30 patents

Information Patent Application
PROJECTION DISPLAY DEVICE
- Publication number 20130100418
- Publication date Apr 25, 2013
- Sanyo Electric Co., Ltd.
- Tsutomu YOSHIKAWA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
REMOTE CONTROL RECEIVER AND PROJECTION DISPLAY DEVICE
- Publication number 20120008960
- Publication date Jan 12, 2012
- Sanyo Electric Co., Ltd.
- Atsushi KUBO
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Illuminating apparatus, and projector using the illuminating apparatus
- Publication number 20020122156
- Publication date Sep 5, 2002
- Shigeru Sawamura
- G02 - OPTICS