Kiyozo Hashizume

Follow

Person

Tokyo, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Cleaning method for use in electrophotography
- Patent number 4,640,608
- Issue date Feb 3, 1987
- Ricoh Co., Ltd.
- Toshiaki Higaya
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Powder material transportation apparatus
- Patent number 4,297,021
- Issue date Oct 27, 1981
- Ricoh Company, Ltd.
- Tatsuo Tani
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY