Seiichi Ohsawa

Follow

Person

Saitama, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Dot line printer with individually replaceable printing head
- Patent number 4,852,480
- Issue date Aug 1, 1989
- Citizen Watch Co., Ltd.
- Masao Kunita
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Method for controlling printing impact power in impact type dot pri...
- Patent number 4,774,882
- Issue date Oct 4, 1988
- Citizen Watch Co., Ltd.
- Seiichi Ohsawa
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Wire mask for a dot printer head apparatus
- Patent number 4,757,760
- Issue date Jul 19, 1988
- Citizen Watch Co., Ltd.
- Shohachi Nihara
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Method of dot-printing underlines
- Patent number 4,650,348
- Issue date Mar 17, 1987
- Citizen Watch Co., Ltd.
- Masahiko Kaneko
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Paper feed apparatus for shuttle printer
- Patent number 4,527,921
- Issue date Jul 9, 1985
- Citizen Watch Co., Ltd.
- Michio Koizumi
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS