Yoichi Kojima

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Integral transmitter-receiver optical communication apparatus and a...
- Patent number 6,701,093
- Issue date Mar 2, 2004
- Pentax Precision Co., Ltd.
- Tatsuo Gotoh
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Integral transmitter-receiver optical communication apparatus
- Patent number 6,384,944
- Issue date May 7, 2002
- Asahi Seimitsu Kabushiki Kaisha
- Homu Takayama
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical axis correcting system
- Patent number 6,141,144
- Issue date Oct 31, 2000
- Asahi Seimitsu Kabushiki Kaisha
- Masakazu Yamagata
- G02 - OPTICS
Information Patent Grant
Focusing method and apparatus for a surveying instrument having an...
- Patent number 5,936,736
- Issue date Aug 10, 1999
- Asahi Seimitsu Kabushiki Kaisha
- Shinichi Suzuki
- G01 - MEASURING TESTING