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Akira Takeshima
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Shizuoka, JP
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last 30 patents
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Patent Grant
Voltage measuring using electro-optic material's change in refracti...
Patent number
5,666,062
Issue date
Sep 9, 1997
Hamamatsu Photonics K.K.
Hironori Takahashi
G01 - MEASURING TESTING
Information
Patent Grant
Voltage measurement system
Patent number
5,631,555
Issue date
May 20, 1997
Hamamatsu Photonics K.K.
Hironori Takahashi
G01 - MEASURING TESTING
Information
Patent Grant
Optical feedback photodetection apparatus
Patent number
5,614,708
Issue date
Mar 25, 1997
Hamamatsu Photonics K.K.
Musubu Koishi
G02 - OPTICS
Information
Patent Grant
Synchronous signal detection apparatus with a photoconductive photo...
Patent number
5,591,962
Issue date
Jan 7, 1997
Hamamatsu Photonics K.K.
Musubu Koishi
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Decay characteristic measuring apparatus
Patent number
5,548,124
Issue date
Aug 20, 1996
Hamamatsu Photonics K.K.
Akira Takeshima
G01 - MEASURING TESTING
Information
Patent Grant
Optical measuring apparatus
Patent number
5,534,992
Issue date
Jul 9, 1996
Hamamatsu Photonics K.K.
Akira Takeshima
G01 - MEASURING TESTING
Information
Patent Grant
Optical frequency mixing apparatus
Patent number
5,535,044
Issue date
Jul 9, 1996
Hamamatsu Photonics K.K.
Akira Takeshima
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Phase difference detecting method, circuit and apparatus
Patent number
5,495,100
Issue date
Feb 27, 1996
Hamamatsu Photonics, K.K.
Akira Takeshima
G01 - MEASURING TESTING
Information
Patent Grant
Method and apparatus for distance measurement using electromagnetic...
Patent number
5,044,744
Issue date
Sep 3, 1991
Hamamatsu Photonics K.K.
Ichizo Ogawa
G01 - MEASURING TESTING
Information
Patent Grant
Deflecting voltage generating circuit
Patent number
4,914,359
Issue date
Apr 3, 1990
Hamamatsu Photonics Kabushiki Kaisha
Akira Takahashi
G01 - MEASURING TESTING
Information
Patent Grant
Time interval measuring device
Patent number
4,827,317
Issue date
May 2, 1989
Hamamatsu Photonics Kabushiki Kaisha
Yoshihiko Mizushima
G01 - MEASURING TESTING
Information
Patent Grant
Laser pulse train jitter measuring device
Patent number
4,705,397
Issue date
Nov 10, 1987
Hamamatsu Photonics Kabushiki Kaisha
Yutaka Tsuchiya
G01 - MEASURING TESTING
Information
Patent Grant
Instruments for measuring light pulses clocked at high repetition r...
Patent number
4,694,154
Issue date
Sep 15, 1987
Hamamatsu Photonics Kabushiki Kaisha
Yutaka Tsuchiya
G01 - MEASURING TESTING
Information
Patent Grant
Instruments for measuring light pulses clocked at high repetition r...
Patent number
4,645,918
Issue date
Feb 24, 1987
Hamamatsu Photonics Kabushiki Kaisha
Yutaka Tsuchiya
G01 - MEASURING TESTING