Kouichi TAKAYAMA

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Kanagawa-ken, JP

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Patents Grantslast 30 patents

Information Patent Grant
Oil-based ball-point pen refill, oil-based ball-point pen, and oil-...
- Patent number 10,087,337
- Issue date Oct 2, 2018
- Kabushiki Kaisha Pilot Corporation
- Akihiro Shiobara
- B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
Information Patent Grant
Ballpoint pen tip and ballpoint pen using the same
- Patent number 9,346,313
- Issue date May 24, 2016
- KABUSHIKI KAISHA PILOT CORPORATION
- Kouichi Takayama
- B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
Information Patent Grant
Ballpoint pen tip and ballpoint pen
- Patent number 8,430,591
- Issue date Apr 30, 2013
- Kabushiki Kaisha Pilot Corporation
- Keishi Okamoto
- B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES

Patents Applicationslast 30 patents

Information Patent Application
WRITING BALL, METHOD FOR MANUFACTURING WRITING BALL, AND BALLPOINT...
- Publication number 20240416673
- Publication date Dec 19, 2024
- Kabushiki Kaisha Pilot Corporation (Also Trading as Pilot Corporation)
- Kouichi TAKAYAMA
- B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
Information Patent Application
OIL-BASED BALL-POINT PEN REFILL, OIL-BASED BALL-POINT PEN, AND OIL-...
- Publication number 20160177114
- Publication date Jun 23, 2016
- Kabushiki Kaisha Pilot Corporation
- Akihiro SHIOBARA
- B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
Information Patent Application
BALLPOINT PEN TIP AND BALLPOINT PEN USING THE SAME
- Publication number 20140147190
- Publication date May 29, 2014
- Kouichi Takayama
- B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES