Kenji Ohtsuka

Follow

Person

Tokyo, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Portable drilling machine
- Patent number 9,604,284
- Issue date Mar 28, 2017
- Nitto Kohki Co., Ltd.
- Kenji Ohtsuka
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Electric drill apparatus
- Patent number 7,121,773
- Issue date Oct 17, 2006
- Nitto Kohki Co., Ltd.
- Toshio Mikiya
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Rotary cutting apparatus
- Patent number 7,001,117
- Issue date Feb 21, 2006
- Nitto Kohki Co., Ltd.
- Toshio Mikiya
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR

Patents Applicationslast 30 patents

Information Patent Application
PORTABLE DRILLING MACHINE
- Publication number 20120320479
- Publication date Dec 20, 2012
- Kenji Ohtsuka
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Application
Electric drill apparatus
- Publication number 20050025586
- Publication date Feb 3, 2005
- Toshio Mikiya
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Application
Rotary cutting apparatus
- Publication number 20040191018
- Publication date Sep 30, 2004
- Nitto Kohki Co. , Ltd.
- Toshio Mikiya
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR