Tsutomu Matsumura

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Yokosuka, JP

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Patents Grantslast 30 patents

Information Patent Grant
Optical system for display apparatus
- Patent number 5,379,135
- Issue date Jan 3, 1995
- Victor Company of Japan, Ltd.
- Shintaro Nakagaki
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Display device
- Patent number 5,327,229
- Issue date Jul 5, 1994
- Victor Company of Japan, Ltd.
- Toshio Konno
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Projection type display device having a mask for cutting off unnece...
- Patent number 5,285,268
- Issue date Feb 8, 1994
- Victor Company of Japan, Ltd.
- Shintaro Nakagaki
- H04 - ELECTRIC COMMUNICATION TECHNIQUE