Sankyo Seiki Mfg. Co., Ltd

Kabushiki Kaisha Sankyo Seiki Seisakusho

K.k. Sankyo Seiki Seisakusho

Tokuhisa Tsutsui

Yasushi Mizusaki

Hiromasa Marumo

Hironori Kurosawa

Masamichi Hayakawa

Toshihiro Kobayashi

Yuuki Nakamura

A dynamic-pressure fluid bearing comprises bearing parts formed by a pair of dynamic-pressure surfaces. One of the dynamic-pressure surfaces of the bearing parts is a polyamideimide coating thicker than 3 .mu.m and the other surface is metal. The bearing is particularly applicable to driving motors for polygon mirrors. In addition, a so-called particle removing function is added to one or more of the surfaces of the bearing parts or a position nearby that causes easier removal of dust and other particles accumulated on the parts.

Dynamic-pressure fluid bearing

A dynamic-pressure fluid bearing comprises bearing parts formed by a pair of dynamic-pressure surfaces. One of the dynamic-pressure surfaces of the bearing parts is a polyamideimide coating thicker than 3 .mu.m and the other surface is metal. The bearing is particularly applicable to driving motors for polygon mirrors.

A bearing material mainly comprising plastics and a plastic bearing made thereof. The bearing material is composed of 30 to 98 wt % of glassy carbon and 70 to 2 wt % of plastics, and has persistent, excellent abrasion resistance, sliding properties, and heat resistance.

Bearing material and plastic bearing

An electrochromic display device uses a metal-phthalocyanine derivative as an electrochromic material at the display electrode side and a metal-phthalocyanine derivative being preliminarily held in a reduced state or a redox material being stable in an oxidized state at the counter electrode side.

Growing community of inventors

Shimosuwa-machi, Japan

Tokuhisa Tsutsui