Hideki Oka

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Kawasaki, JP

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Patents Grantslast 30 patents

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Diffraction-type optical encoder with improved detection signal ins...
- Patent number 4,985,623
- Issue date Jan 15, 1991
- Mitytoyo Corporation
- Souji Ichikawa
- G01 - MEASURING TESTING
Information Patent Grant
Diffraction type optical encoder with improved detection signal ins...
- Patent number 4,983,825
- Issue date Jan 8, 1991
- Mitutoyo Corporation
- Souji Ichikawa
- G01 - MEASURING TESTING
Information Patent Grant
Diffraction-type optical encoder with improved detection signal ins...
- Patent number 4,943,716
- Issue date Jul 24, 1990
- Mitutoyo Corporation
- Souji Ichikawa
- G01 - MEASURING TESTING