Kabushiki Kaisha Morita Seisakusho

Sadayasu Ota

Charles M Weiss

Shinichi Nishimoto

Keizo Inoue

Takeo Uchiya

A contra angle handpiece of this invention employs a laser beam transmitting glass fiber for dental treatment in such a manner that the transmission of the beam is carried out not by a reflecting mirror, but by a glass fiber centripetally held with respect to the handpiece by means of resilient grip members. As a result, the disadvantages of the prior art such as reflection factor reduction and reflection angle changes, which result from the use of a reflecting mirror in a contra angle dental handpiece, are eliminated.

Contra angle handpiece for dental treatment by laser beams

The disclosure relates to improvements in a cordless handpiece for dental treatment having storage batteries and an electric motor incorporated therein. The improvements are that the cutting tool is increased in cutting performance and that the replacement of a contra angle and a straight tool has been facilitated.

Cordless handpiece for dental treatment

Dental chair

A working mechanism for moving a treatment table including an expandable and contractable pneumatic spring coupled to the table, a pneumatic control pressure circuit for controlling the expansion and contraction of the pneumatic spring and a hydraulic checker coupled to the treatment table whereby the treatment table is smoothly moved and maintained at any heighth.

Working mechanism for a treatment table

The disclosure relates to improvements in an assembly for taking a continuous X-ray picture of the dental arch of a human being, wherein a support base is supported by a wall construction so as to be either vertically slidable or fixed in position, thereby utilizing space much more effectively and improving the appearance of the assembly, and eliminating for an operator or a patient any problem regarding movement of the feet on taking the X-ray picture.

Growing community of inventors

Kyoto, Japan

Sadayasu Ota