Kazuhiko Sasaki

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Isesaki, JP

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Patents Grantslast 30 patents

Information Patent Grant
Push button type ballpoint pen
- Patent number 6,305,865
- Issue date Oct 23, 2001
- Kabushiki Kaisha Pilot
- Kazuhiro Yoshii
- B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
Information Patent Grant
Ballpoint pen refill
- Patent number 6,302,609
- Issue date Oct 16, 2001
- Kabushiki Kaisha Pilot
- Minoru Machida
- B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
Information Patent Grant
Push-button writing instrument
- Patent number 6,062,756
- Issue date May 16, 2000
- Kabushiki Kaisha Pilot
- Kazuhiko Sasaki
- B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
Information Patent Grant
Ballpoint pen refill and fabrication method thereof
- Patent number 5,984,559
- Issue date Nov 16, 1999
- Kabushiki Kaisha Pilot
- Toshikazu Shiobara
- B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES