Other

Pioneer Electronic Corporation

Hiroshi Muraoka

Teruo Tohma

An auxiliary instrument for dental treatment comprises a forked mandible retaining plate abutting on the face under the mandible and a protruding mandible head retaining means provided in the vicinity of the forked base end portion of said mandible retaining plate and having a through opening into which the head of mandible is inserted. A flexible substance is placed on the surface of said mandible retaining plate as well as the inner peripheral surface of said mandible head retaining means and can be removed freely as occasion demands.

Auxiliary instrument for dental treatment

A magnetic head having one or more magneto-electric converting elements, such as Hall elements, and comprising plural leads which are used, when the magnetic head is manufactured, for measuring the amount of head material ground away between a front surface of the magnetic head and the front edge of the magneto-electric converting element in order to control a two-stage grinding operation on the head.

Growing community of inventors

Tokyo, Japan

Hiroshi Muraoka