Takashi Hongoh

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Kawasaki, 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
Distance measuring device for automatic focusing camera
- Patent number 4,908,648
- Issue date Mar 13, 1990
- Ricoh Company, Ltd.
- Kosaku Sawabe
- G02 - OPTICS
Information Patent Grant
Control device for driving zoom lens of a camera
- Patent number 4,866,468
- Issue date Sep 12, 1989
- Ricoh Company, Ltd.
- Keiji Himuro
- G02 - OPTICS