Ryoichi Imai

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Image file system with multiple control image transfer between firs...
- Patent number 5,159,692
- Issue date Oct 27, 1992
- Canon Kabushiki Kaisha
- Ryoichi Imai
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Information retrieval apparatus
- Patent number 5,137,347
- Issue date Aug 11, 1992
- Canon Kabushiki Kaisha
- Ryoichi Imai
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Auto-focus apparatus applied to image reading apparatus and the like
- Patent number 4,762,985
- Issue date Aug 9, 1988
- Canon Kabushiki Kaisha
- Ryoichi Imai
- G02 - OPTICS