Kenji Naganuma

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Hitachinaka-shi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Chainsaw having ventholes for ventilation
- Patent number 9,494,120
- Issue date Nov 15, 2016
- Hitachi Koki Co., Ltd.
- Kenji Naganuma
- B27 - WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL NAILING OR STAPLING MACH...
Information Patent Grant
Two-stroke engine and motorized implement equipped with the two-str...
- Patent number 8,550,043
- Issue date Oct 8, 2013
- Hitachi Koki Co., Ltd.
- Kenji Naganuma
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Grant
Fastener driving tool
- Patent number 8,186,553
- Issue date May 29, 2012
- Hitachi Koki Co., Ltd.
- Hideyuki Tanimoto
- B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS

Patents Applicationslast 30 patents

Information Patent Application
CHAINSAW
- Publication number 20190030746
- Publication date Jan 31, 2019
- Koki Holdings Co., Ltd.
- Kenji NAGANUMA
- B27 - WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL NAILING OR STAPLING MACH...
Information Patent Application
CHAIN SAW
- Publication number 20180133822
- Publication date May 17, 2018
- Hitachi Koki Co., Ltd.
- Kenji NAGANUMA
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Application
TWO-STROKE ENGINE AND MOTORIZED IMPLEMENT EQUIPPED WITH THE TWO-STR...
- Publication number 20100236082
- Publication date Sep 23, 2010
- Hitachi Koki Co., Ltd
- Kenji Naganuma
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Application
Fastener Driving Tool
- Publication number 20100140316
- Publication date Jun 10, 2010
- Hitachi Koki Co., Ltd
- Hideyuki Tanimoto
- B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS