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:
Aug. 14, 2012
Filed:
Dec. 25, 2007
Hiroaki Shimizu, Hikone, JP;
Tomohiro Kunita, Hikone, JP;
Shinichi Taniguchi, Otsu, JP;
Suehisa Kishimoto, Hikone, JP;
Tadanobu Kitagawa, Hikone, JP;
Hiroaki Shimizu, Hikone, JP;
Tomohiro Kunita, Hikone, JP;
Shinichi Taniguchi, Otsu, JP;
Suehisa Kishimoto, Hikone, JP;
Tadanobu Kitagawa, Hikone, JP;
Panasonic Corporation, Kadoma-shi, JP;
Abstract
An electric-electronic toothbrush carries a brush driven to vibrate, and arranged to flow an electric current into a user's oral cavity for promoting removal of tooth plaque. The electric-electronic toothbrush has a shaft driven to vibrate along and/or about an axis of the shaft, and a battery supplying the electric current. The shaft is electrically conductive to flow the electric current into a brush electrode of a brush head. The shaft is electrically connected to the battery by way of an extendible electrically conductive coupler within the handle. The electrically conductive coupler has its one end secured to the shaft, and the other end to an electrically conductive member connected to one of poles of the battery, so as to absorb the vibration of the shaft. The handle is provided on its outer peripheral surface with a touch electrode. The electric-electronic toothbrush is arranged to give predetermined electric potentials respectively to the brush electrode and the touch electrode, so as to flow a microelectric current onto the tooth surface for removal of tooth plaque during user's tooth brushing due to vibration of a brush.