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:
Oct. 13, 2015
Filed:
Sep. 22, 2010
Hideyuki Tanimoto, Hitachinaka, JP;
Chikai Yoshimizu, Hitachinaka, JP;
Nobuhiro Takano, Hitachinaka, JP;
Hiromi Ozawa, Hitachinaka, JP;
Kazuhiko Funabashi, Hitachinaka, JP;
Hideyuki Tanimoto, Hitachinaka, JP;
Chikai Yoshimizu, Hitachinaka, JP;
Nobuhiro Takano, Hitachinaka, JP;
Hiromi Ozawa, Hitachinaka, JP;
Kazuhiko Funabashi, Hitachinaka, JP;
HITACHI KOKI CO., LTD., Tokyo, JP;
Abstract
An electric grasscutter includes a motor () which drives a rotary blade (). The motor () is a brushless motor accommodated in a motor housing () and including a rotor () provided integrally with an output shaft (), and a stator () fixed to the motor housing (). A motor control circuit which drives the motor () is accommodated in the motor housing (). The motor control circuit includes an inverter having FETs (-) as switching elements, and a control section to control the FETs (-). The FETs (-) are fixed in contact with the motor housing ().