Yoshitaka Morimoto

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Ink composition, writing tool and method for producing ink composition
- Patent number 11,613,663
- Issue date Mar 28, 2023
- PENTEL KABUSHIKI KAISHA
- Katsuji Arisawa
- B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
Information Patent Grant
Oily ink composition for ballpoint pens
- Patent number 9,365,732
- Issue date Jun 14, 2016
- Pentel Kabushiki Kaisha
- Aya Otsubo
- B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES

Patents Applicationslast 30 patents

Information Patent Application
INK COMPOSITION , WRITING TOOL AND METHOD FOR PRODUCING INK COMPOSI...
- Publication number 20190338151
- Publication date Nov 7, 2019
- PENTEL KABUSHIKI KAISHA
- Katsuji ARISAWA
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Application
OILY INK COMPOSITION FOR BALLPOINT PENS
- Publication number 20150071698
- Publication date Mar 12, 2015
- Aya Otsubo
- B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES