Hidenao Tanaka

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Magneto-optic information storage system utilizing a TE/TM mode con...
- Patent number 5,504,722
- Issue date Apr 2, 1996
- Nippon Telegraph & Telephone Corporation
- Hidenao Tanaka
- G11 - INFORMATION STORAGE
Information Patent Grant
Polarization mode switching semiconductor laser apparatus
- Patent number 5,497,390
- Issue date Mar 5, 1996
- Nippon Telegraph and Telephone Corporation
- Hidenao Tanaka
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Encoder in which single light source projects dual beams onto grating
- Patent number 5,113,071
- Issue date May 12, 1992
- Nippon Telegraph & Telephone Corporation
- Renshi Sawada
- G01 - MEASURING TESTING