Akira Ohte

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Measuring device using optical beam
- Patent number 5,050,988
- Issue date Sep 24, 1991
- Yokogawa Electric Corporation
- Tadashi Sugiyama
- G01 - MEASURING TESTING
Information Patent Grant
Optical frequency synthesizer/sweeper
- Patent number 4,912,526
- Issue date Mar 27, 1990
- Yokogawa Electric Corporation
- Hideto Iwaoka
- G02 - OPTICS
Information Patent Grant
Optical frequency synthesizer/sweeper
- Patent number 4,893,353
- Issue date Jan 9, 1990
- Yokogawa Electric Corporation
- Hideto Iwaoka
- G02 - OPTICS
Information Patent Grant
Optical frequency analyzer using a local oscillator heterodyne dete...
- Patent number 4,856,899
- Issue date Aug 15, 1989
- Yokogawa Electric Corporation
- Hideto Iwaoka
- G02 - OPTICS
Information Patent Grant
Semiconductor laser wavelength stabilizer
- Patent number 4,833,681
- Issue date May 23, 1989
- Yokogawa Electric Corporation
- Koji Akiyama
- G02 - OPTICS