Hiroyuki Sugimura

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Wavelength dependence correction method in optical variable attenuator
- Patent number 6,144,793
- Issue date Nov 7, 2000
- Ando Electric Co., Ltd.
- Yoshinori Matsumoto
- G02 - OPTICS
Information Patent Grant
Wavelength dependence correction method in optical variable attenuator
- Patent number 6,044,195
- Issue date Mar 28, 2000
- Ando Electric Co., Ltd.
- Yoshinori Matsumoto