Itsushi Ogawa

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Ibaraki, JP

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Patents Grantslast 30 patents

Information Patent Grant
Electric tool and battery pack for the electric tool
- Patent number 9,748,534
- Issue date Aug 29, 2017
- Hitachi Koki Co., Ltd.
- Hiroyuki Hanawa
- B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
Information Patent Grant
Power tool with substrate having apertures for cooling coils and sw...
- Patent number 9,680,349
- Issue date Jun 13, 2017
- Hitachi Koki Co., Ltd.
- Junichi Tokairin
- B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
Information Patent Grant
Powered working machine
- Patent number 9,669,536
- Issue date Jun 6, 2017
- Hitachi Koki Co., Ltd.
- Yutaka Ito
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR

Patents Applicationslast 30 patents

Information Patent Application
POWERED WORKING MACHINE
- Publication number 20150183107
- Publication date Jul 2, 2015
- Hitachi Koki Co., Ltd.
- Yutaka ITO
- B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
Information Patent Application
ELECTRIC TOOL AND BATTERY PACK FOR THE ELECTRIC TOOL
- Publication number 20140294483
- Publication date Oct 2, 2014
- Hitachi Koki Co., Ltd.
- Hiroyuki Hanawa
- B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
Information Patent Application
ELECTRIC POWER TOOL
- Publication number 20140239751
- Publication date Aug 28, 2014
- Hitachi Koki Co., Ltd.
- Junichi Tokairin
- B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS