Fuminao Matsumoto

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Patents Grantslast 30 patents

Information Patent Grant
Color filter layer and reflection type multicolor for liquid crysta...
- Patent number 6,414,732
- Issue date Jul 2, 2002
- Ricoh Company, Ltd.
- Fuminao Matsumoto
- G02 - OPTICS
Information Patent Grant
Color filter for liquid crystal display device
- Patent number 6,068,953
- Issue date May 30, 2000
- Ricoh Company, Ltd.
- Fuminao Matsumoto
- G02 - OPTICS
Information Patent Grant
Liquid crystal display device
- Patent number 6,061,042
- Issue date May 9, 2000
- Ricoh Company, Ltd.
- Hiroyuki Takahashi
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information Patent Grant
Plastic color filter manufacturing method and color filter manufact...
- Patent number 5,969,780
- Issue date Oct 19, 1999
- Ricoh Company, Ltd.
- Fuminao Matsumoto
- G02 - OPTICS
Information Patent Grant
Active matrix liquid crystal display
- Patent number 5,831,695
- Issue date Nov 3, 1998
- Ricoh Company, Ltd.
- Fuminao Matsumoto
- G02 - OPTICS