Matsushita Electric Works, Ltd.

Panasonic Electric Works Co., Ltd.

Panasonic Corporation

Suehisa Kishimoto

Tomohiro Kunita

Hiroaki Shimizu

Shinichi Taniguchi

Kazumi Okawa

Kazunori Araki

Tatsuya Takahashi

Masako Kitadou

Yuuki Yoda

Atsushi Takahashi

Takahiro Nishinaka

Tadanobu Kitagawa

Wataru Sanematsu

Masayoshi Nagayama

Yumi Hanato

Yukihiro Masuda

Shimizu Hioraki

The electronic toothbrush () includes a brush head () having an implantation area where bristles () for brushing of teeth are fixed and a handle () configured to carry the brush head (). The brush head () includes a brush electrode exposed on its surface. The brush electrode includes a first electrode () located in the implantation area where the bristles () are fixed and a second electrode () located in a non-implantation area where no bristles () are fixed. The handle () includes a handle electrode () exposed on its surface. The handle () is configured to house a power source () for applying a voltage between the handle electrode () and each of the first electrode () and the second electrode (). The bristles () are fixed directly to the first electrode ().

Electronic toothbrush

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.

Electric-electronic toothbrush

A mouth cleaning device includes a head portion provided with bristles and an electrode; and a grip portion provided with an electrode. Further, the mouth cleaning device includes a boosting circuit for boosting an output voltage of a battery serving as a power source and applying the boosted voltage to the electrodes of the head portion and the grip portion; and a current limit circuit for limiting a current flowing from one electrode to the other via a human body.

Mouth cleaning device

A toothbrush device including a brush member and a grip. The brush member includes an electric terminal accommodation chamber and an electric terminal plate accommodated in the electric terminal accommodation chamber. The electric terminal plate includes a contact, which comes into contact with a contact portion of a coupler shaft of the grip through a window providing communication with a receptacle of the brush member. The brush member includes a holding portion supporting the coupler shaft. The receptacle includes a fastener mount portion and an engaging piece which cooperates with the fastener mount portion to hold the coupler shaft therebetween. The engaging piece and the contact portion are arranged at the same side of the axis of the coupler shaft. The fastener mount portion is arranged opposite the contact portion with respect to the axis of the coupler shaft.

Toothbrush device

An actuator includes a shaft supported in such a manner as to make axial reciprocating movement or rotational reciprocating movement around longitudinal axis thereof, and an electricity conducting member for making contact with the shaft at a plurality of points on a circumferential surface of the shaft used as an electricity conducting path leading to other members. Further, an electric toothbrush includes the actuator as a drive power source for a brush body, and the brush body is adapted to be supplied with an electric current through the shaft.

Actuator and electric toothbrush using the same

A relaxation apparatus which comprises a reclining chair for supporting thereon a whole body of a person who desires relaxation. The person resting on the reclining chair is cyclically vibrated at a frequency not higher than 25 Hz. A control is provided for controlling the vibrating device. The maximum absolute value of acceleration of the vibration produced by the vibrating device to vibrate the person supported on the reclining chair is not greater than 0.1 G. The control controls the acceleration in dependence on the frequency of vibrations outputted by the vibrating device such that the acceleration is small when the frequency of vibrations outputted by the vibrating device is low while the acceleration is large when the frequency of vibrations is high.

Relaxation apparatus

Growing community of inventors

Hikone, Japan

Suehisa Kishimoto