U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Icon_funbox Quotables

"Without question, the greatest invention in the history of mankind is beer. Oh, I grant you that the wheel was also a fine invention, but the wheel does not go nearly as well with pizza."

Dave Barry

Newsletter  PatentStorm News

Make the Most of Our Site

See this month's Top Inventors and Most Cited Patents.

Stay on top of the latest innovations by subscribing to an RSS feed.

Registered users: Manage your profile.

 

Inventor: Masanori Watanabe


Address: Ibaraki, JP
No. of patents: 11
Last patent issue date: 03/23/2010

NumberTitleIssue Date
7681661Electric power tool
A cover which covers outer peripheries of fastening screws are disposed on an outer periphery of a hammer case. A stopper which detachably positions and fixes the cover to the outer periphery of the hammer case is disposed. ...
03/23/2010
7665541Electric power tool with cover
A cover which covers outer peripheries of fastening screws are disposed on an outer periphery of a hammer case. A stopper which detachably positions and fixes the cover to the outer periphery of the hammer case is disposed. ...
02/23/2010
7490746Power tool
A power tool includes a hook portion having a hook holding portion, which is provided in a housing and has engaging teeth provided in the housing. A hook having a shaft portion is inserted into the hook holding portion and provided with fitting teeth meshing with th...
02/17/2009
7455121Power tool
A power tool includes an impact damping mechanism for damping an impact in a direction of rotation of a speed reduction mechanism portion 8. ...
11/25/2008
7344054Power tool
A power tool includes a hook portion having a hook holding portion, which is provided in a housing and has engaging teeth provided in the housing. A hook having a shaft portion is inserted into the hook holding portion and provided with fitting teeth meshing with th...
03/18/2008
7323796Motor-driven tool
In a motor-driven tool, a carbon brush part 8 is arranged between a suction port 6 and a commutator 11 of the motor and includes a cylindrical side wall 8a. The cylindrical side wall 8a located on an outer periphery o...
01/29/2008
7108079Electric power tool
A cover which covers outer peripheries of fastening screws are disposed on an outer periphery of a hammer case. A stopper which detachably positions and fixes the cover to the outer periphery of the hammer case is disposed. ...
09/19/2006
7048075Power tool
A power tool includes a powered drive source, a speed reduction mechanism portion for transmitting a rotational power of the drive source, a striking mechanism portion for converting the rotational power of the speed reduction mechanism portion into a striking force...
05/23/2006
6905052Power tool
A power tool includes a hook portion comprising a hook holding portion 20, which is provided in a housing 1 and has engaging teeth 47 provided in a housing 1, and also comprising a hook 2 having shaft portion 30, which is in...
06/14/2005
6679406Power tool
A power tool includes a hook portion comprising a hook holding portion 20, which is provided in a housing 1 and has engaging teeth 47 provided in a housing 1, and also comprising a hook 2 having a shaft portion 30, which is inserted into the hook holding ...
01/20/2004
6661148Motor-driven tool
In a motor-driven tool, a carbon brush part 8 is arranged between a suction port 6 and a commutator 11 of the motor and includes a cylindrical side wall 8a. The cylindrical side wall 8a located on an outer periphery of the commutator 11 is provided with a...
12/09/2003
 
Sign InRegister
Username  
Password   
forgot password?