Other

Nippon Avionics Co., Ltd.

Shioda Dental Manufacturing Co., Ltd.

Shinwa Electric Co., Ltd.

Hisao Takayama

Sumiya Hobo

Tomohide Inada

Toshio Nara

Takao Hoshiai

Katsutoshi Umetani

Motoyuki Totsuka

Keisuke Akamatsu

Masao Kashiwada

An articurator is comprised of a mandibular frame being provided with condyles, a maxillary frame mounted on the mandibular frame via condylar guide mechanisms, an anterior guide table provided on the front end of the mandibular frame, and an anterior guide pin provided on the front end of the maxillary frame. The anterior guide table comprises a table portion and lateral wings. The table portion has a sagittal inclination angle adjusting mechanism, and the lateral wings has lateral wing angles adjusting mechanisms. The anterior guide pin makes contact with and slides on an anterior guide mechanism formed by the surface of the anterior guide table. The condylar guide mechanisms in which the condyle is positioned have condylar path inclination angle adjusting mechanisms. The sagittal inclination angle, the lateral wing angles, and the condylar path inclination angles are to be adjusted by two steps to specified values of a first group and to specified values of a second group.

Dental articulator

A car plug connectable to an automobile cigarette lighter receptacle including a tip member having a tip terminal, a cylindrical member with the tip member screwed at one end, a base member attached to another end of the cylindrical member, a projection terminal having resilient contacts curved outwardly from the cylindrical member, an inner cylinder securely provided in the cylindrical member, a tubular fuse housed in the inner cylinder, a coil spring inserted between the tubular fuse and the tip terminal, and a metal terminal abutting against the base end of the tubular fuse and having a lead wire connecting portion. The car plug can fit in any size of cigarette lighter receptacles regardless of the diameter without coming off even under severe vibrations and in addition is easy to assemble.

Car plug

An apparatus for measuring the three-dimensional position and attitude of upper and lower clutches attached on patient's maxillary and mandibular teeth for computerized measurement of the mandibular movements necessary for the fabrication of dental prostheses is disclosed. The apparatus includes a part of a sphere that is fixed to the mandible and which is marked with a reference line and a part of another sphere of substantially the same radius as that of the above sphere, which is fixed to the maxilla and which is also marked with a reference line. The surfaces of the two spheres are caused to slide against each other, with their centers being in alignment, thereby achieving the measurement of the relative attitude of the two spheres.

Apparatus for determining the three-dimensional position and attitude

Growing community of inventors

Tokyo, Japan

Hisao Takayama