Alps Electric Co., Ltd.

Other

Delta Electronics (japan), Inc.

Munemitsu Abe

Masayoshi Esashi

Eiji Shinohara

Shinji Murata

Mitsuru Kano

Takashi Hatanai

Yoshihiro Someno

Tatsumi Fujiyoshi

Manabu Tamura

Yoshihiko Ishitaka

Yorihiko Sasaki

Arao Sato

Koichi Takahashi

Akio Hanada

Yumiko Sato

Shokan Yamashita

Kiyomi Sugawara

Shigefumi Sakai

Kazuhiro Soejima

Tatsuya Oba

In a magnetic core including a core assembly formed of multiple arranged thin strip blocks, each of the thin strip blocks has a structure that multiple nanocrystalline thin strips having a bcc-Fe phase as a main phase are laminated one above another, and an iron loss in the nanocrystalline thin strip positioned at a center of the thin strip block in a thickness direction thereof is lower than an iron loss in the nanocrystalline thin strip positioned in a surface layer of the thin strip block. The nanocrystalline thin strip may be a heat-treated product of an amorphous thin strip made of an amorphous alloy material, and the thin strip block may include a fixedly joined portion in which the nanocrystalline thin strips adjacent to each other in a lamination direction are fixedly joined together.

Magnetic core and magnetic component

A glass substrate has a pair of main surfaces opposite to each other. Two island-shaped portions made of silicon are buried in the glass substrate. The two island-shaped portions are exposed from the two main surfaces of the glass substrate, respectively. An electrode is formed on one main surface of the glass substrate so as to be electrically connected to one exposed portion of one island-shaped portion, and another electrode is formed thereon so as to be electrically connected to one exposed portion of the other island-shaped portion. Still another electrode is formed on the other main surface of the glass substrate so as to be electrically connected to the other exposed portion of the one island-shaped portion. A silicon substrate having a pressure sensing diaphragm is bonded to the other main surface of the glass substrate.

Glass substrate and capacitance-type pressure sensor using the same

A functional multilayer film and a method for manufacturing the same is provided in which the intervals of fine metallic bodies in the thickness direction and the arrangement thereof in the surface direction are regular, and the fine metallic bodies arranged on each layer are aligned in the thickness direction. A functional multilayer film is obtained by fixing a plurality of fine metallic bodies to a matrix made of a dielectric substance. The matrix is obtained by laminating metal-arranged thin films, which each contain a dielectric thin film having a predetermined thickness and the fine metallic bodies arranged on the dielectric thin film. A plurality of recesses is regularly formed on the surface of the dielectric thin film, and the fine metallic bodies are arranged in the lower parts of the recesses.

Functional multilayer film and method for manufacturing the same

A pressure sensor includes a silicon-on-insulator (SOI) substrate, a glass substrate bonded to the SOI substrate by anode bonding, a silicon island formed on a part of a silicon layer of the SOI substrate and surrounded by a groove extending to an insulating layer of the SOI substrate, a through hole formed in the glass substrate, and an output electrode that is made of a conductive material, is disposed inside the through hole, and is electrically connected to an electrode formed on the glass substrate via the silicon island.

Pressure sensor

At one side of a substrate, a vertical diffraction grating is formed integrated with the substrate, at the other side of the substrate, one pair or more of fibers are disposed through which either light goes from the vertical diffraction grating or light comes into the vertical diffraction grating, and a lens member is disposed between the fibers and the vertical diffraction grating. At the other side of the substrate, positioning means which positions a plurality of fibers is formed integrated with the substrate, and a space between the vertical diffraction grating and the fibers constitutes a waveguide.

Optical multiplexer/demultiplexer and manufacturing method thereof and optical multiplexing/demultiplexing module

When a guide groove for a lens is formed in a single crystal silicon substrate, a rectangular parallelepiped opening is formed having a width smaller than a desired width of the guide groove and is then processed by wet etching using a KOH solution. Two {111} planes are exposed on at least one end surface of the guide groove in an optical axis direction, and the planes described above are inclined toward the substrate side from the upper and the lower sides. Since a protrusion portion protruding to the guide groove side is not provided at the bottom part of the end surface, a light-emitting diode and a lens can be disposed close to each other, thereby forming an optical coupling device having high optical coupling efficiency obtained between elements.

Optical coupling device and manufacturing method thereof

A gyroscope includes a tuning fork, which includes a plurality of tines formed of a conductive material and a supporting portion; an upper glass substrate and a lower glass substrate which sandwich the tuning fork; drive electrodes which are provided on each of the upper and the lower glass substrates in such a manner that parts of the drive electrodes oppose the tines and the remaining parts protrude from the tines, the drive electrodes being capacitively coupled to the tines and driving the tines in a direction parallel to the substrates; and detection electrodes which are capacitively coupled to the tines, and which detect displacements of the tines in a direction perpendicular to the vibrating direction of the tines.

Gyroscope and input unit using the same

The invention provides a capacitive micro sensor that suppresses electric noise generated around the electrodes and enhances the S/N ratio to thereby enhance the detection sensitivity. The gyroscope of the invention includes a tuning fork having three legs, driving electrodes and detecting electrodes provided on two glass substrates, driving field-throughs that supply the driving electrodes with a drive signal, and detecting fields-through that extract a detecting signal from the detecting electrodes. And, a shield member between the detecting and the driving, shield members between the detecting and the detecting, and shield members between the driving and the driving are provided, which makes electrostatic shielding between the adjacent field-throughs of the areas where the driving field-throughs and the detecting field-throughs are arrayed.

Capacitive micro sensor, gyroscope, and input device

A microactuator has a first substrate, a second substrate, a first comb electrode having a plurality of first comb elements formed on an inner surface of the first substrate, a second comb electrode having a plurality of second comb elements formed on an inner surface of the second substrate, and a connecting film formed by partially removing an interlayer formed on the inner face of any one of the first substrate and the second substrate. The first substrate and the second substrate face each other with a distance and are movable with respect to each other. The first comb elements and the second comb elements are alternately disposed. Any one of the first electrode and the second electrode is bonded to the connecting film. This microactuator is preferably used in magnetic head units and magnetic recording apparatuses.

Microactuator, method for making the same, and magnetic head unit and magnetic recording apparatus using the same

A gyroscope of the invention is provided with a tuning fork having three legs and a support, a top side glass substrate and a bottom side glass substrate between which the tuning fork is interposed, driving movable electrodes disposed on the top surface of each leg, driving fixed electrodes disposed on the bottom surface of the top side glass substrate so as to face to the driving movable electrodes, six detection movable electrodes connected to each other in parallel disposed on the top surface of the free end of each leg, and six detection fixed electrodes connected to each other in parallel disposed on the bottom surface of the top side glass substrate so as to face to the detection movable electrodes.

Gyroscope and input apparatus using the same

The invention provides a gyroscope that brings about the miniaturization of a device, improvement of detection sensitivity, and reduction of driving voltage. A gyroscope of the present invention is provided with a tuning fork formed of conductive material having a plurality of legs and a support, a top glass substrate and a bottom glass substrate for holding the tuning fork in-between, a plurality of driving electrodes for driving the plurality of legs in capacitance coupling with the legs, and a plurality of detecting electrodes, each detecting electrode is disposed so as to face to the end face of each leg in the extending direction correspondingly to each leg.

Gyroscope and input apparatus using the gyroscope that detects displacement of leg of tuning fork by means of capacitance change when angular velocity is entered

In a microactuator, a fixed substrate and a movable substrate are placed to be spaced opposed to each other. Between these substrates, a plurality of actuators are arranged to provide different moving distances. The actuators include comb-like movable electrodes formed on the movable substrate, and fixed electrodes formed on the fixed substrate, and having a plurality of teeth that extend outside the leading ends of the teeth of the movable electrodes in an undriven state. The movable substrate is allowed to move so that the leading ends of the teeth of the movable electrodes reach the outer ends of the teeth of the fixed electrodes. The portions of the fixed electrode teeth, which extend outside the movable electrode teeth, are different in length among the actuators.

Microactuator, magnetic head device, and magnetic recording apparatus

An alignment layer for use in liquid crystals including a macromolecular material deposited on a glass substrate, the macromolecular material composed of main molecular chains which are, on the average, aligned in a first direction. A series of parallel microgrooves are formed in the macromolecular material and aligned perpendicular to the first direction, each microgroove being separated by a ridge having a triangular cross-section, and each ridge having first and second sides meeting at an apex, wherein the first side has a shorter length than the second side. As a result, disclination does not occur and sufficient reliability against external forces and heat may be obtained. In addition, numerous methods are disclosed for forming the alignment layer.

Alignment layer for liquid crystal element and method of producing same

A circuit for driving a liquid crystal panel includes an A/D converter for converting image data to digital data, a shift register for generating horizontal scanning signals, a capacitor group formed of capacitors the number of which corresponds to the number of bits of digital data, a selector for selecting none or at least one capacitor from among the capacitor group on the basis of horizontal scanning signals and digital data, a power-supply section for supplying an electric charge to each capacitor, first switch sections for charging an electric charge to selected capacitors only in every horizontal synchronization period, and second switch sections for connecting all capacitors to their corresponding signal electrodes S in every horizontal synchronization period. Even if the liquid crystal panel is formed into a large screen, neither is its parts mounting surface increased considerably, nor do the costs increase. In addition, a display having a high resolution can be realized with a simple construction.

Growing community of inventors

Miyagi-ken, Japan

Munemitsu Abe