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Tondabayashi, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Optical rotary encoder employing plural photosensors disposed in a...
Patent number
4,975,569
Issue date
Dec 4, 1990
Sharp Kabushiki Kaisha
Koyoshi Ebina
G01 - MEASURING TESTING
Information
Patent Grant
Semiconductor color sensor detection circuit
Patent number
4,692,025
Issue date
Sep 8, 1987
Sharp Kabushiki Kaisha
Zempei Tani
G01 - MEASURING TESTING
Information
Patent Grant
Position control in a D.C. motor
Patent number
4,689,540
Issue date
Aug 25, 1987
Sharp Kabushiki Kaisha
Zempei Tani
G05 - CONTROLLING REGULATING
Information
Patent Grant
Optical rotary encoder
Patent number
4,654,525
Issue date
Mar 31, 1987
Sharp Kabushiki Kaisha
Kiyoshi Ebina
G01 - MEASURING TESTING
Information
Patent Grant
Photoelectric encoder
Patent number
4,620,094
Issue date
Oct 28, 1986
Sharp Kabushiki Kaisha
Zempei Tani
G01 - MEASURING TESTING
Information
Patent Grant
Original document size detecting arrangement
Patent number
4,614,874
Issue date
Sep 30, 1986
Sharp Kabushiki Kaisha
Hiroaki Fukuda
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Digitalized position control for a D.C. motor
Patent number
4,588,936
Issue date
May 13, 1986
Sharp Kabushiki Kaisha
Hiromu Itoh
G05 - CONTROLLING REGULATING
Information
Patent Grant
Dual junction photoelectric semiconductor device
Patent number
4,318,115
Issue date
Mar 2, 1982
Sharp Kabushiki Kaisha
Toshihumi Yoshikawa
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Apparatus for sensing the wavelength and intensity of light
Patent number
4,309,604
Issue date
Jan 5, 1982
Sharp Kabushiki Kaisha
Toshihumi Yoshikawa
G06 - COMPUTING CALCULATING COUNTING