Nec Corporation

Kabushiki Kaisha Toshiba

Hitachi, Ltd.

Nec Toshiba Space Systems, Ltd.

Nec Space Technologies, Ltd.

Daisuke Eto

Chosaku Noda

Masatsugu Ogawa

Ryuichi Katayama

Yutaka Yamanaka

Takuya Mayuzumi

Masahiro Toyohara

Mitsuhiko Watanabe

Kazuhiko Aoki

Ryoichi Oura

Hiroharu Satoh

Hideaki Ohsawa

Hisaya Niizawa

Takeharu Shibatoko

A fast steering mirror has n plate springs (to) and m drive means (to). The plate springs (to) are arranged such that a cross-sectional plane passing through the center of the thickness of each of the plate springs is on the same plane as the reflection surface of a mirror (), and are arranged rotationally symmetric to each other about the center (O). The plate springs each have a section extending along the circumference of the mirror holder, the section being obtained by dividing the perimeter of the mirror holder substantially into n sections. The drive means (to) are arranged such that a cross-sectional plane passing through the center of torque generated by each of the drive means is on the same plane as the reflection surface of the mirror () and are rotationally symmetric to each other about the center (O).

Small size fast steering mirror having small size and excellent vibration characteristics

A control devicefor an internal combustion engineincludes an injector drive circuitthat drives an injectorthat injects fuel and a temperature detection device that at least detects timing when a temperature condition that the temperature of the injector drive circuitexceeds predetermined temperature is satisfied. The control deviceincludes a heat-generation-suppression control meansthat performs control for suppressing the heat generation of the injector drive circuit. The heat-generation-suppression control meansselects, on the basis of a driving state of a vehicle, at least one parameter among an electric current applied to the injector, fuel pressure supplied to the injector, the number of revolutions of the internal combustion engine, and voltage from a battery to be boosted and performs control for limiting a value of the selected parameter on the basis of the timing.

Control device for internal combustion engine

In an optical disk medium, land recording tracks () are coupled by first and second coupling portions (and) at a particular radial position to form a tilt detecting mark SM.

Optical disk medium and optical disk recording/reproducing apparatus utilizing tilt detection areas having special marks

Growing community of inventors

Tokyo, Japan

Daisuke Eto