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Mikio Maeda
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Tokyo, JP
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last 30 patents
Information
Patent Grant
Optical masking apparatus
Patent number
5,557,401
Issue date
Sep 17, 1996
Ando Electric Co., Ltd.
Mikio Maeda
G01 - MEASURING TESTING
Information
Patent Grant
Optical time domain reflectometer using ring laser light source
Patent number
5,500,731
Issue date
Mar 19, 1996
Ando Electric Co., Ltd.
Mitsuhisa Sato
G01 - MEASURING TESTING
Information
Patent Grant
Optical pulse tester capable of displaying Raman or Rayleigh scatte...
Patent number
5,390,018
Issue date
Feb 14, 1995
Ando Electric Co., Ltd.
Tatsuyuki Fujita
G01 - MEASURING TESTING
Information
Patent Grant
Bidirectional light transmission system and optical device therefor
Patent number
5,361,157
Issue date
Nov 1, 1994
Nippon Hoso Kyokai
Tadasu Ishikawa
G02 - OPTICS