Kenichi Ichikawa

Follow

Person

Tokyo, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Ink jet head
- Patent number 5,270,740
- Issue date Dec 14, 1993
- Ricoh Company, Ltd.
- Osamu Naruse
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Receptacle for waste ink collection in ink jet recording apparatus
- Patent number 4,524,365
- Issue date Jun 18, 1985
- Ricoh Company, Ltd.
- Sadao Kakeno
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS