Motokuni Demura

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Yokohama, JP

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Patents Grantslast 30 patents

Information Patent Grant
Distance measuring device of camera
- Patent number 5,249,013
- Issue date Sep 28, 1993
- Ricoh Company, Ltd.
- Motokuni Demura
- G02 - OPTICS
Information Patent Grant
Distance measuring device of camera
- Patent number 5,200,602
- Issue date Apr 6, 1993
- Ricoh Company, Ltd.
- Keiichi Ikebe
- G02 - OPTICS
Information Patent Grant
Camera with built-in electronic flash
- Patent number 4,945,368
- Issue date Jul 31, 1990
- Ricoh Company, Ltd.
- Tokio Ishino
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY