Masao Masumura

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Image density control method and color image forming apparatus
- Patent number 5,083,160
- Issue date Jan 21, 1992
- Ricoh Company, Ltd.
- Kohji Suzuki
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image reversal electrostatographic apparatus
- Patent number 4,200,387
- Issue date Apr 29, 1980
- Ricoh Company, Ltd.
- Masao Masumura
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY