Sunstar Inc.

Maxell Holdings, Ltd.

Sunstar Suisse S.a.

Masahiro Nishiura

Yukinori Wada

Kazuaki Yoshida

Yusuke Okamoto

Hironobu Nagano

Hidekuni Takano

Nobuharu Matsudomi

Yasuhiro Kawai

Akio Yonetani

Kazuhiko Inoue

Yugo Watari

Kosuke Torii

Narito Tsuchida

Kieko Imai

Provided are a toothbrush module, a toothbrush attachment, a brushing assistance system, a brushing evaluation system, a brushing assistance device, and a brushing assistance program that ease obtainment of a brushing action of a user even during brushing. A toothbrush attachment () includes: a sensor unit () that detects a predetermined physical quantity; a wireless transmission unit () that transmits a radio signal indicating the physical quantity detected by the sensor unit (); a housing unit () that houses the sensor unit () and the wireless transmission unit (); and a coupling mechanism () that removably attaches the housing unit () to a toothbrush (). A wireless terminal device () includes a wireless receiver () that receives a radio signal and obtains the physical quantity, a music output unit () that outputs an image or sound so as to support brushing by a user with the toothbrush () based on the physical quantity, a figure display control unit (), and a notification unit ().

Toothbrush module, attachment for toothbrush, brushing assistance system, brushing evaluation system, brushing assistance device, and brushing assistance program

Provided is an oral cleaning device capable of ensuring a sufficient ejection pressure for a cleaning liquid while employing a small and low-cost electric air pump with a low output. An oral cleaning device is provided with an air-tightly closable cleaning liquid tankwhich stores a cleaning liquid, a cleaning liquid supply passagewhich has an ejection portfor ejecting the cleaning liquid into the oral cavity on one end and an introduction portopen inside the bottom part of the cleaning liquid tankon the other end, and an electric air pumpwhich supplies air into the cleaning liquid tankto pressurize the inside of the cleaning liquid tank. The cleaning liquid inside the cleaning liquid tankis supplied to the ejection portthrough the cleaning liquid supply passageby air pressure inside the cleaning liquid tank. An air introduction holewhich is open on the midway part of the cleaning liquid supply passageis provided and part of the air supplied to the cleaning liquid tankfrom the air pumpis supplied to the cleaning liquid supply passagethrough the air introduction holeto eject the cleaning liquid in a pulsatile manner from the ejection port

Oral cleaning device

Provided is a sprayer usable as a cosmetic mist device and an inhaler. The sprayer includes an air pump, a motor, a battery, a mist nozzle, a tank for storing a mist liquid concentrate, and a vertically long, cylindrical, main body case. The main body case is divided into front and back chambers by a division wall, and the tank is housed in the front chamber. The air pump, the motor, and an electrical component section including the battery are disposed, in this order, in the back chamber. The tank is formed in a vertically long shape occupying most of the front chamber without affecting an outer shape of the main body case. A grip portion is formed in a recessed manner at an upper portion of a back face of the main body case and the air pump and the motor are disposed near the grip portion.

Sprayer

Provided is a linear actuator which is simple in structure, inexpensive to manufacture, in addition, has small magnetic leakage, and can provide a large inertial force without increasing the number of parts and weight. The linear actuator is provided with an output shaftwhich is supported on a supporting caseso as to linearly reciprocate freely, an elastic memberwhich biases the output shafttoward a middle position of the linear reciprocation thereof, a permanent magnetwhich is fixed to the output shaft, a coilwhich linearly reciprocates the output shaftby having a variable magnetic field act on the permanent magnetand is fixed to the supporting casesuch that the coilfaces one of magnetic poles of the permanent magnet, a yoke, which is composed of a magnetic material, has a midway portion tightly secured to the other magnetic pole of the permanent magnet, extends to the exterior of the coilalong the exterior of the permanent magnetwith a space from the permanent magnet, and has an end portion disposed close to the exterior of the coil, and power supply means for forming a variable magnetic field on the coil

Linear actuator

An electric toothbrush with a thinner handle part to ensure the ease of manual tooth-brushing while improving the ease of a switch operation between the operating state and the stopped state, the electric toothbrush being configured to realize an effective oral cleaning by automatically giving a necessary mechanical assistance to a brush part according to the brushing state constantly varying during tooth-brushing depending on the cleaned part and the ways of holding and moving the toothbrush.

Electric toothbrush

A vibrational frequency adjustment device comprises, as a vibrational frequency adjustment means (): a first conversion means () which is provided with an input-side rotating member (), an output-side rotating member (), and a one-way clutch () for transmitting only the rotational motion in one direction of the input-side rotating member () to the output-side rotating member () and which, by causing the input-side rotating member () to pivot in a reciprocating manner by a set angle by means of the reciprocating linear motion of an output shaft (), transmits only the forward motion or the reverse motion of the input-side rotating member () to the output-side rotating member () through the one-way clutch () to thereby rotate the output-side rotating member () by a given angle; and a second conversion means () which converts the rotational motion of the output-side rotating member () into the reciprocating linear motion of a second shaft member ().

Growing community of inventors

Takatsuki, Japan

Masahiro Nishiura