Takahisa Yamada

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Sagamihara, JP

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Patents Grantslast 30 patents

Information Patent Grant
Cleaning blade arrangement for image forming apparatus
- Patent number 4,992,834
- Issue date Feb 12, 1991
- Olympus Optical Co., Ltd.
- Akira Yamamoto
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Two-side image recording apparatus
- Patent number 4,974,033
- Issue date Nov 27, 1990
- Olympus Optical Co., Ltd.
- Takahisa Yamada
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY