Tetsuro Okamura

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Illumination optical unit liquid crystal projector and production m...
- Patent number 7,198,376
- Issue date Apr 3, 2007
- Sony Corporation
- Masao Katsumata
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Polarization converting device, illumination optical system and pro...
- Patent number 6,987,618
- Issue date Jan 17, 2006
- Sony Corporation
- Tetsuro Okamura
- G02 - OPTICS

Patents Applicationslast 30 patents

Information Patent Application
Zone phase correcting lens and optical head device
- Publication number 20060002279
- Publication date Jan 5, 2006
- Tetsuro Okamura
- G11 - INFORMATION STORAGE
Information Patent Application
Polarization converting device, illumination optical system and pro...
- Publication number 20040212893
- Publication date Oct 28, 2004
- Tetsuro Okamura
- G02 - OPTICS
Information Patent Application
Illumination optical unit liquid crystal projector and production m...
- Publication number 20040046942
- Publication date Mar 11, 2004
- Masao Katsumata
- H04 - ELECTRIC COMMUNICATION TECHNIQUE