Nissan Motor Company Limited

National Institute of Advanced Industrial Science and Technology

Teruo Kishi

Yosuke Yamamoto

Ya Xu

Kazuhiro Otsuka

Nobuyuki Toyama

Byungkoog Jang

A functional composite material characterized by being molded by solidifying by a resin base material a martensite-phase shape memory alloy wire produced by cold drawing a shape memory alloy which changes between an austenite phase and a martensite phase via a phase transformation temperature. The material enables a smooth motion memorized in the shape memory alloy.

Functional composite material using shape memory alloy and production method therefor

An ultra-sonic senor system suitable for monitoring movement of a vehicle, relative to the horizontal employs two or more coordinated ultra-sonic sensors. The sensors may be mounted at opposite ends or on opposite sides of the vehicle, depending on whether pitch or roll respectively is to be monitored. Each sensor broadcasts ultra-sonic waves and receives ultra-sonic waves reflected by the road surface. The transmission time is known; the reception time is measured upon detection of the peak of the reflected waves. The difference between the two above times yields the distance between the vehicle and the road. The difference between the distances measured by two sensor yields the inclination of the vehicle relative to the horizontal plane.

Ultra-sonic sensor system for monitoring rolling and/or pitching motion

Growing community of inventors

Tokyo, Japan

Teruo Kishi