Syunsuke Fujita

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Kawasaki, JP

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Patents Grantslast 30 patents

Information Patent Grant
Apparatus for recording and reproducing optical information and pri...
- Patent number 5,235,589
- Issue date Aug 10, 1993
- Ricoh Company, Ltd.
- Kiyoshi Yokomori
- G02 - OPTICS
Information Patent Grant
Mode splitter and magneto-optical signal detection device
- Patent number 5,208,800
- Issue date May 4, 1993
- Ricoh Company, Ltd.
- Tami Isobe
- G02 - OPTICS
Information Patent Grant
High efficiency prism coupling device and method for producing the...
- Patent number 5,119,452
- Issue date Jun 2, 1992
- Ricoh Company, Ltd.
- Kiyoshi Yokomori
- G02 - OPTICS