Kazuhisa TAKAHASHI

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Oshu-City, JP

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Patents Grantslast 30 patents

Information Patent Grant
Refractive optics and projection display apparatus
- Patent number 8,641,208
- Issue date Feb 4, 2014
- Sanyo Electric Co., Ltd.
- Ryuhei Amano
- G02 - OPTICS

Patents Applicationslast 30 patents

Information Patent Application
REFRACTIVE OPTICS AND PROJECTION DISPLAY APPARATUS
- Publication number 20110292355
- Publication date Dec 1, 2011
- RICOH OPTICAL INDUSTRIES CO., LTD.
- Ryuhei AMANO
- G02 - OPTICS