Shinichi Sakuma

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Ibaraki, JP

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Patents Grantslast 30 patents

Information Patent Grant
Portable belt grinder
- Patent number 8,382,556
- Issue date Feb 26, 2013
- Hitachi Koki Co., Ltd.
- Naoto Yamashiro
- B24 - GRINDING POLISHING
Information Patent Grant
Electric-powered cutting machine with blade holding mechanism
- Patent number 8,099,873
- Issue date Jan 24, 2012
- Hitachi Koki Co., Ltd.
- Naoya Eto
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Electric-powered cutting machine
- Patent number 7,216,434
- Issue date May 15, 2007
- Hitachi Koki Co., Ltd.
- Naoya Eto
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR

Patents Applicationslast 30 patents

Information Patent Application
ELECTRIC DEVICE AND ELECTRIC DEVICE SYSTEM
- Publication number 20220390078
- Publication date Dec 8, 2022
- Koki Holdings Co., Ltd.
- Satoshi TACHI
- F21 - LIGHTING
Information Patent Application
PORTABLE BELT GRINDER
- Publication number 20100003905
- Publication date Jan 7, 2010
- Hitachi Koki Co., Ltd.
- Naoto Yamashiro
- B24 - GRINDING POLISHING
Information Patent Application
Electric-powered cutting machine
- Publication number 20070193041
- Publication date Aug 23, 2007
- Hitachi Koki Co., Ltd.
- Naoya Eto
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Application
Electric tool
- Publication number 20070071422
- Publication date Mar 29, 2007
- Yoshikazu Kawano
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Application
Electric-powered cutting machine
- Publication number 20030196338
- Publication date Oct 23, 2003
- Hitachi Koki Co., Ltd.
- Naoya Eto
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR