Iwao Hamaguchi

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Yokohama, JP

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Patents Grantslast 30 patents

Information Patent Grant
Apparatus for converting optical information into electrical inform...
- Patent number 5,351,209
- Issue date Sep 27, 1994
- Ricoh Company, Inc.
- Yutaka Hayashi
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Apparatus for converting optical information into electrical inform...
- Patent number 5,235,542
- Issue date Aug 10, 1993
- Ricoh Company, Ltd.
- Yutaka Hayashi
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Image forming apparatus for forming image corresponding to subject,...
- Patent number 5,194,959
- Issue date Mar 16, 1993
- Ricoh Company, Ltd. and Nippon Telegraph and Telephone Corporation
- Yutaka Kaneko
- G02 - OPTICS
Information Patent Grant
Apparatus for converting optical information into electrical inform...
- Patent number 5,079,415
- Issue date Jan 7, 1992
- Ricoh Company, Ltd.
- Yutaka Hayashi
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Ballast resistor device for use in a laser system
- Patent number 4,602,237
- Issue date Jul 22, 1986
- Ricoh Company, Ltd.
- Iwao Hamaguchi
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Method for manufacture of insulating film and interface between ins...
- Patent number 4,567,061
- Issue date Jan 28, 1986
- Agency of Industrial Science and Technology
- Yutaka Hayashi
- H01 - BASIC ELECTRIC ELEMENTS