Atsujirou Ishii

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Vari-focal lens system
- Patent number 5,080,473
- Issue date Jan 14, 1992
- Olympus Optical Co., Ltd.
- Atsujirou Ishii
- G02 - OPTICS
Information Patent Grant
Vari-focal lens system
- Patent number 4,999,007
- Issue date Mar 12, 1991
- Olympus Optical Co., Ltd.
- Norihiko Aoki
- G02 - OPTICS