The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 08, 2005
Filed:
Aug. 28, 2003
Junichi Kamimura, Hitachinaka, JP;
Mitsuo Ogura, Hitachinaka, JP;
Mitsuyuki Ishikawa, Hitachinaka, JP;
Yoshimitsu Kawasaki, Yamato, JP;
Juurou Kobayashi, Hitachinaka, JP;
Naoya Eto, Hitachinaka, JP;
Hiroto Inagawa, Mito, JP;
Takuhiro Murakami, Hitachinaka, JP;
Satsuo Sato, Hitachinaka, JP;
Yoshikazu Yokoyama, Hitachinaka, JP;
Junichi Kamimura, Hitachinaka, JP;
Mitsuo Ogura, Hitachinaka, JP;
Mitsuyuki Ishikawa, Hitachinaka, JP;
Yoshimitsu Kawasaki, Yamato, JP;
Juurou Kobayashi, Hitachinaka, JP;
Naoya Eto, Hitachinaka, JP;
Hiroto Inagawa, Mito, JP;
Takuhiro Murakami, Hitachinaka, JP;
Satsuo Sato, Hitachinaka, JP;
Yoshikazu Yokoyama, Hitachinaka, JP;
Hitachi Koki Co., Ltd., Tokyo, JP;
Abstract
Disclosed is an electric power tool having a gear mechanism, which reduces a noise by absorbing collision of gears and is resistible to a high torque. A power transmission keycomposed of high-strength plastic is provided between an output shaftand a gearand a plane or a V-groove is formed on each of the output shaftand the gearcontacting the power transmission key