Sakae Hayao

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Yokohama-shi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Erasing implement and writing implement provided with erasing imple...
- Patent number 9,994,066
- Issue date Jun 12, 2018
- Mitsubishi Pencil Company, Limited
- Sakae Hayao
- B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
Information Patent Grant
Application liquid reservoir
- Patent number 6,382,862
- Issue date May 7, 2002
- Mitsubishi Pencil Co., Ltd.
- Sakae Hayao
- B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES

Patents Applicationslast 30 patents

Information Patent Application
ERASING IMPLEMENT AND WRITING IMPLEMENT PROVIDED WITH ERASING IMPLE...
- Publication number 20150033499
- Publication date Feb 5, 2015
- MITSUBISHI PENCIL COMPANY, LIMITED
- Sakae Hayao
- B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
Information Patent Application
Application liquid reservoir
- Publication number 20010053308
- Publication date Dec 20, 2001
- Mitsubishi Pencil Co., Ltd.
- Sakae Hayao
- B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES