Chiaki Suematsu

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Light attenuator and process for fabrication thereof
- Patent number 5,113,476
- Issue date May 12, 1992
- Mitsubishi Rayon Company Ltd.
- Hiroshi Okada
- G02 - OPTICS
Information Patent Grant
Apparatus for following sun light
- Patent number 4,942,292
- Issue date Jul 17, 1990
- Mitsubishi Rayon Co., Ltd.
- Kiyoshi Ichimura
- G01 - MEASURING TESTING
Information Patent Grant
Light attenuator and process for fabrication thereof
- Patent number 4,925,514
- Issue date May 15, 1990
- Mitsubishi Rayon Company, Ltd.
- Hiroshi Okada
- G02 - OPTICS