Jtekt Corporation

Toyohashi University of Technology

Takashi Yamaguchi

Hiroaki Suzuki

Masayoshi Sakuda

Tomonori Sugiura

Mitsuteru Inoue

Naofumi Kawamura

Taichi Goto

Takahiro Baito

Kosuke Ito

Kazuhisa Asakawa

Yasuhiro Tanioka

Yuki Fujioka

Tetsuya Ebisu

Yoshiaki Murakami

Takao Nakaaki

A gear includes an annular sleeve and a tooth portion provided by injection molding to cover a part of the sleeve. The sleeve is a stacked body including a plurality of annular steel plates stacked in an axial direction of the sleeve.

Gear and steering device

Provided is an optical body capable of arbitrarily and quickly controlling the optical characteristics of incident light. A refractive index variable layer () formed of PLZT or other material and a magneto-optical material layer () formed of garnet or other material are provided side by side between a first reflective layer () and a second reflective layer (). If linearly polarized light is made incident from the side of the first reflective layer (), the incident light interacts with the magneto-optical material layer () and is converted into a right-circularly polarized light component and a left-circularly polarized light component. A very small retardation occurring between both the right- and left-circularly polarized light components is amplified through multiple reflections between the pair of reflective layers () and is controlled according to a controlled refractive index of the refractive index variable layer ().

Optical body

Growing community of inventors

Toyohashi, Japan

Takashi Yamaguchi