Takayuki Maki

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Yokohama-shi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Ball-point pen refill
- Patent number 6,926,458
- Issue date Aug 9, 2005
- Mitsubishi Pencil Kabushikikaisha
- Takayuki Maki
- B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES

Patents Applicationslast 30 patents

Information Patent Application
Ball-point pen refill
- Publication number 20040067092
- Publication date Apr 8, 2004
- Takayuki Maki
- B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES