Sanyo Electric Co., Ltd.

Hiroyasu Ishihara

Hideki Mizuhara

Masaru Tanaka

Kaori Misawa

Masakatsu Fujiwara

Tatsuaki Tanaka

Toshihiro Suhara

Kazuhisa Matsumoto

An enclosure is formed on a substrate of a semiconductor device surrounding a bonding pad, such that a groove is formed between the enclosure and the bonding pad. An insulating film is formed over the substrate, including the enclosure and the groove. The groove and the film prevent moisture and contaminants from seeping into the semiconductor device.

Semiconductor devices with means to reduce contamination

A vehicle having a man power driving system in which a driving force by man power is applied through a gear change mechanism to rotate a wheel, an a motor driving system in which the wheel is rotated by a driving force of a motor. The man power driving system is equipped with a torque detector for detecting a man power driving force so as to drive the motor according to a magnitude of the man power driving force detected by the turque detector. A particularly durable gear change mechanism is not required, and thus a common gear change mechanism for bicycle can be used, thereby simplifying construction.

Combination man-powered and motor-driven vehicle

Growing community of inventors

Gifu-ken, Japan

Hiroyasu Ishihara