Kei Oomoto

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Yokohama, JP

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Patents Grantslast 30 patents

Information Patent Grant
Mechanical pencil
- Patent number 9,834,032
- Issue date Dec 5, 2017
- Mitsubishi Pencil Company, Limited
- Kei Oomoto
- B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
Information Patent Grant
Writing instrument or applicator having resin molded parts
- Patent number 9,597,920
- Issue date Mar 21, 2017
- MITSUBISHI PENCIL COMPANY, LIMITED
- Kei Oomoto
- B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
Information Patent Grant
Mechanical pencil
- Patent number 9,358,828
- Issue date Jun 7, 2016
- Mitsubishi Pencil Company, Limited
- Hirotake Izawa
- B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
Information Patent Grant
Applicator
- Patent number 7,976,236
- Issue date Jul 12, 2011
- Mitsubishi Pencil Company, Limited
- Kei Oomoto
- B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES

Patents Applicationslast 30 patents

Information Patent Application
MECHANICAL PENCIL
- Publication number 20150336419
- Publication date Nov 26, 2015
- MITSUBISHI PENCIL COMPANY, LIMITED
- Kei OOMOTO
- B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
Information Patent Application
WRITING INSTRUMENT OR APPLICATOR HAVING RESIN MOLDED PARTS
- Publication number 20150063893
- Publication date Mar 5, 2015
- MITSUBISHI PENCIL COMPANY, LIMITED
- Kei Oomoto
- B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
Information Patent Application
MECHANICAL PENCIL
- Publication number 20150023714
- Publication date Jan 22, 2015
- MITSUBISHI PENCIL COMPANY, LIMITED
- Hirotake Izawa
- B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES