Kenichi Yamada

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Hitachinaka, JP

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Patents Grantslast 30 patents

Information Patent Grant
Rechargeable battery
- Patent number D689432
- Issue date Sep 10, 2013
- Hitachi Koki Co., Ltd.
- Takafumi Itoh
- D13 - Equipment for production, distribution, or transformation of energy
Information Patent Grant
Portable electric circular saw
- Patent number D638681
- Issue date May 31, 2011
- Hitachi Koki Co., Ltd.
- Kenichi Yamada
- D08 - Tools and hardware
Information Patent Grant
Battery pack
- Patent number D622661
- Issue date Aug 31, 2010
- Hitachi Koki Co., Ltd.
- Kenichi Yamada
- D13 - Equipment for production, distribution, or transformation of energy
Information Patent Grant
Battery pack
- Patent number D607814
- Issue date Jan 12, 2010
- Hitachi Koki Co., Ltd.
- Hitoshi Tsuzuki
- D13 - Equipment for production, distribution, or transformation of energy
Information Patent Grant
Battery pack
- Patent number D562227
- Issue date Feb 19, 2008
- Hitachi Koki Co., Ltd.
- Kenichi Yamada
- D13 - Equipment for production, distribution, or transformation of energy
Information Patent Grant
Reciprocating saw
- Patent number D551930
- Issue date Oct 2, 2007
- Hitachi Koki Co., Ltd.
- Kenichi Yamada
- D08 - Tools and hardware