Takahiko Shimizu

Follow

Person

Tokyo, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Tubular writing tip having an outer reduced diameter portion
- Patent number 4,525,092
- Issue date Jun 25, 1985
- Pentel Kabushiki Kaisha
- Takahiko Shimizu
- B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
Information Patent Grant
Writing instrument having a needle slidably mounted in a tubular tip
- Patent number 4,522,525
- Issue date Jun 11, 1985
- Pentel Kabushiki Kaisha
- Sigeru Saito
- B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
Information Patent Grant
Writing instrument
- Patent number 4,364,684
- Issue date Dec 21, 1982
- Pentel Kabushiki Kaisha
- Tadashi Kohno
- B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES