Tsutomu Asahina

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Yokohama, JP

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Patents Grantslast 30 patents

Information Patent Grant
Light quantity measuring system and exposure apparatus using the same
- Patent number 5,949,468
- Issue date Sep 7, 1999
- Canon Kabushiki Kaisha
- Tsutomu Asahina
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Exposure method and apparatus for controlling light pulse emission...
- Patent number 5,250,797
- Issue date Oct 5, 1993
- Canon Kabushiki Kaisha
- Naoto Sano
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY