Mitsubishi Electric Corporation

Mitsubishi Denki Kabushiki Kaisha

Dexerials Corporation

Alps Alpine Co., Ltd.

Dexerails Corporation

Satoshi Kawamura

Sotsuo Miyoshi

Youichi Fujita

Eiji Ohta

Toshihiko Miyake

Kimitaka Nishimura

Shigehisa Ohkawara

Masayasu Kakinuma

Kenta Hatano

Naoki Imamura

Yoshitaka Onishi

Shunichi Kajiya

Shigenaga Yamasaki

Tomohiro Ueno

Masaki Takenouchi

Kazuaki Shinya

Kiyoaki Tanifuji

Maki Ogawa

Kenji Takahashi

Hirofumi Ohuchi

Jun Sasaki

Masayuki Yokoyama

Masahiro Iezawa

Hajime Kako

Sachiko Kawasaki

Hisashi Yokoyama

Yoshihiro Taguchi

Hidetoshi Okada

Masaaki Komori

Hideki Terashima

Tomokuni Kato

Junko Ito

Yoshitaka Ikitake

Setsuo Ishibashi

Taihei Kawasaka

Emi Yoshida

Yoshimune Suzuki

Yuya Nishimori

Hiroyoshi Minaguchi

Aya Nishikawa

Ryo Awaya

Shinsuke Takeshima

Ohkawara Shigehisa

A motor control device includes: a first duty ratio computation unit to compute a first duty ratio to be used for control of a motor body portion on the basis of a target rotational position of a rotor and a rotational position of the rotor; a second duty ratio computation unit to compute a second duty ratio corresponding to an upper limit of the absolute value of the first duty ratio on the basis of a linear function including a variable corresponding to the number of rotations of the rotor; and a control signal output unit to output a control signal corresponding to the first duty ratio when the absolute value of the first duty ratio is smaller than the absolute value of the second duty ratio, and to output a control signal corresponding to the second duty ratio when it is not.

Motor control device, brushless DC motor, actuator, and EGR valve device

A sensor () detects the angle of the output shaft () of a synchronous motor (). A multiple rotation processing unit () converts the angle of one rotation or more that is detected by the sensor () into a multiple rotation angle. A phase difference FB unit () performs feedback control in such a way that the phase difference between the electrical angle and the mechanical angle of the synchronous motor () is a target phase difference (). A position FB unit () performs feedback control in such a way that the multiple rotation angle after conversion by the multiple rotation processing unit () is a target position ().

Control device and control method for actuator

A flow passage unit has a column for used in a liquid chromatograph and a support body that supports the column. The column has: a porous stationary phase; a porous pressure adjusting part disposed at least at the flow-in end of the stationary phase, a liquid entering the flow-in end, the pressure adjusting part being harder than the stationary phase; and a covering part that covers the stationary phase and pressure adjusting part. The support body has a first plate and a second plate that are mutually joined, the support body forming a column holding part and a liquid flow passage, the column holding part holding the column between the first plate and the second plate, the liquid flow passage communicating with the column holding part. Pressure applied from the first plate and second plate to the pressure adjusting part is higher than pressure applied to the stationary phase.

Flow passage unit

A transparent laminate including a transparent substrate and structure layer, wherein the structure layer contains protrusion portions, depression portions, or both on a surface thereof, and an average distance between the adjacent protrusion portions or between the adjacent depression portions is equal to or less than a visible light wavelength, the structure layer includes a polymerized product of an active energy ray curable resin composition, the resin composition includes a composition of a (meth)acryloyl group-containing polymerizable compound, the compound composition includes one or more from each of (A), (B), and (C):

Transparent laminate

There is provided a novel and improved eyeglasses protection device capable of suppressing occurrence of reflected light that may enter eyes of a user of the eyeglasses protection device and thus reducing fatigue of the user, the eyeglasses protection device including: a lens surface protective part configured to protect a lens surface of eyeglasses. The lens surface protective part is equipped with a substrate film, and a micro concavo-convex structure that is formed on a surface of the substrate film, with an average period of the concavo-convex part being equal to or less than a wavelength of visible light. According to the aforementioned viewpoint of the present invention, it is possible to suppress occurrence of reflected light that may enter eyes of a user of the eyeglasses protection device because the micro concavo-convex structure is formed in the lens surface protective part of the eyeglasses protection device.

Eyeglasses protection device

Harmonics are generated when pulse width modulation is carried out with an asymmetrical triangular wave as a carrier signal in a power conversion device. In order to restrict these harmonics, a command value is corrected in advance so as to be distorted, a gate signal of a switching operation is determined lasing a post-correction command value and an asymmetrical carrier signal, and pulse width modulation is carried out, whereby an output voltage or output current with no distortion is obtained.

Power conversion device including an asymmetrical carrier signal generator

A hydraulic pressure supply system includes a mechanical oil pump; an electric oil pump; an electric motor that drives the electric oil pump; a control device that controls the operation of the electric oil pump; and a hydraulic pressure measurement circuit that measures a hydraulic pressure of the outlet-side pipe of the electric oil pump. The control device starts supplying electric power to the electric motor to thereby start drive of the electric oil pump before the mechanical oil pump stops operating, and limits the power-supply current to the electric motor to a first current or less during a time period between the start of the drive of the electric oil pump and the time when the hydraulic pressure measured by the hydraulic pressure measurement circuit exceeds a prescribed outlet hydraulic pressure.

Control device for electric motor and hydraulic pressure supply system

A transparent laminate including: transparent substrate; and structure layer which contains protrusion portions, depression portions, or both on a surface thereof, average distance between the protrusion portions adjacent or the depression portions adjacent being equal to or less than wavelength of visible light; the structure layer including polymerized product of active-energy-ray-curable resin composition including composition of (meth)acrylate-based-polymerizable compound; the composition including at least any of the following (A) and (B), and the following (C) and (D): (A) ester (meth)acrylate of trihydric alcohol having main and side chain each including alkyl chain; (B) ester di(meth)acrylate of ethylene-oxide-modified bisphenol A; (C) polyalkylene glycol di(meth)acrylate; and (D) ester di(meth)acrylate of dihydric alcohol having main chain including linear alkyl chain; water contact angle on the surface of the structure layer being 26&#xb0; or more and 74&#xb0; or less; and storage elastic modulus at 180&#xb0; C. of the structure layer being less than 0.5 GPa.

There is provided a transparent film for a face protection shield in which transparency is enhanced and visibility from a non-wearer is also enhanced, the transparent film for a face protection shield including: a transparent base material having flexibility; and a transparent resin layer configured to be laminated on at least one of surfaces of the transparent base material, the transparent resin layer having on a surface a plurality of structural bodies including concavities or convexities provided at a pitch of less than or equal to a visible light wavelength. A refractive index of the transparent base material is different from a refractive index of the transparent resin layer, and an interface between the transparent base material and the transparent resin layer has a concave-convex shape.

Transparent film for face protection shield

A control device for an actuator learns a reference position of a shaft when the operation of the engine of a vehicle is not obstructed in a period during which the engine is operating, and performs feedback control by using the reference position learned thereby in such a way that the position of the shaft detected by a position sensor gets close to a target position.

Control device for actuator, actuator, valve driving device and control method for actuator

A position sensor mounted in an actuator includes a magnetic detecting element for detecting the position of a shaft, and a temperature detecting element for detecting intra-sensor temperature which is used for correction of the temperature characteristics of the magnetic detecting element, the magnetic detecting element and the temperature detecting element being built therein. A control device for the actuator acquires both the temperature-corrected position of the shaft and the intra-sensor temperature from the position sensor, and uses them for control of the actuator.

A control device for a WG actuator includes a feedback control unit for performing feedback control on the WG actuator in such a way that the position of a shaft detected by a position sensor gets close to a target position, and an abnormality detecting unit for providing an instruction to move the shaft in an axial direction for the feedback control unit, and for detecting an abnormality in the WG actuator on the basis of a result of a movement of the shaft, the movement being detected by the position sensor while the feedback control unit performs the instruction.

Control device for actuator, actuator, valve driving device and abnormality detecting method for actuator

Protective cover for glasses

Growing community of inventors

Tokyo, Japan

Satoshi Kawamura