Nippon Telegraph and Telephone Corporation

Fuji Jukogyo Kabushiki Kaisha

Nikon Vision Co., Ltd.

Mitsuo Yamamoto

Hidefumi Mori

Nobuyori Tsuzuki

Masayuki Nishida

Jun Nakayama

A shift control apparatus for a continuously variable transmission has a target primary pressure setting unit provided a target primary pressure according to a speed ratio deviation between an actual speed ratio and a target speed ratio; a shift control valve for regulating flow rate of hydraulic oil supplied to the primary cylinder by changing an opening area of the shift control valve according to current supplied to an electromagnetic coil; a primary pressure detecting unit; and a control unit for controlling the speed ratio by correcting a basic current set to be based upon the target primary pressure and supplied to the electromagnetic coil by feeding back the primary pressure detected by the primary pressure detecting unit, so as to have an excellent shift feeling, being able to decrease a fuel consumption by reducing the load of a pump and by quickly shifting to an optimum speed ratio.

Shift control apparatus for continuously variable transmission and shift control method therefor

In an epitaxial growth method of this invention, a first gas consisting of a hydrogen diluted gas containing a Group V element is continuously flowed on a monocrystalline substrate that is placed in a reaction chamber, the monocrystalline substrate is arranged in a gas mixing region where the first gas and a second gas containing a halogenide of a Group III element are mixed adjacent to the monocrystalline substrate, and a Group III-V compound semiconductor is grown on the monocrystalline substrate.

Epitaxial growth method and apparatus therefor

Method for halide VPE of III-V compound semiconductors

Growing community of inventors

Tokyo, Japan

Mitsuo Yamamoto