Koji Yao

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Otsu, JP

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Patents Grantslast 30 patents

Information Patent Grant
Method and device for loading and unloading a film on and out of a...
- Patent number 4,770,404
- Issue date Sep 13, 1988
- Dainippon Screen Mfg. Co., Ltd.
- Tsutomu Ueyama
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Grant
Increasing precision of encoder output
- Patent number 4,707,683
- Issue date Nov 17, 1987
- Dainippon Screen Mfg. Co., Ltd.
- Koji Yao
- G01 - MEASURING TESTING
Information Patent Grant
Method and system for recording images in various magnification ratios
- Patent number 4,636,869
- Issue date Jan 13, 1987
- Dainippon Screen Mfg. Co., Ltd.
- Kunio Tomohisa
- G06 - COMPUTING CALCULATING COUNTING