Tatsuya IIJIMA

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TOKYO, JP

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Patents Grantslast 30 patents

Information Patent Grant
Writing tool
- Patent number 11,667,146
- Issue date Jun 6, 2023
- Kabushiki Kaisha Pilot Corporation
- Hisatoshi Hayakawa
- B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES

Patents Applicationslast 30 patents

Information Patent Application
WRITING TOOL
- Publication number 20210252903
- Publication date Aug 19, 2021
- Kabushiki Kaisha Pilot Corporation (Also Trading as Pilot Corporation)
- Hisatoshi HAYAKAWA
- B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES