Norio Ohsawa

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Kanagawa, JP

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Patents Grantslast 30 patents

Information Patent Grant
Mechanical pencil
- Patent number 8,337,107
- Issue date Dec 25, 2012
- Mitsubishi Pencil Co., Ltd.
- Norio Ohsawa
- B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
Information Patent Grant
Mechanical pencil
- Patent number 8,328,446
- Issue date Dec 11, 2012
- Mitsubishi Pencil Co., Ltd.
- Hirotake Izawa
- B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
Information Patent Grant
Method of moulding composite member, and composite member
- Patent number 8,043,686
- Issue date Oct 25, 2011
- Mitsubishi Pencil Co., Ltd.
- Hitoshi Suzuki
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Mechanical pencil
- Patent number 7,815,385
- Issue date Oct 19, 2010
- Mitsubishi Pencil Co., Ltd.
- Hirotake Izawa
- B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
Information Patent Grant
Mechanical pencil
- Patent number 7,654,763
- Issue date Feb 2, 2010
- Mitsubishi Pencil Co., Ltd.
- Hirotake Izawa
- B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES

Patents Applicationslast 30 patents

Information Patent Application
MECHANICAL PENCIL
- Publication number 20100322695
- Publication date Dec 23, 2010
- Mitsubishi Pencil Co., Ltd.
- Norio Ohsawa
- B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
Information Patent Application
Mechanical Pencil
- Publication number 20090180824
- Publication date Jul 16, 2009
- Mitsubishi Pencil Co., Ltd.
- Hirotake Izawa
- B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
Information Patent Application
METHOD OF MOULDING COMPOSITE MEMBER, AND COMPOSITE MEMBER
- Publication number 20090075045
- Publication date Mar 19, 2009
- Mitsubishi Pencil Co., Ltd.
- Hitoshi Suzuki
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL