Olympus Corporation

Silicon Quest Kabushiki-kaisha

Olympus Optical Company, Ltd.

Tdk Corporation

Other

Fujifilm Corporation

Yoshihiro Maeda

Fusao Ishii

Hirotoshi Ichikawa

Kazuma Arai

Naoya Sugimoto

Hirokazu Nishino

Hitoshi Ohkubo

Taro Endo

Manabu Ohta

Akira Shirai

Takahiro Kawahara

Hiroyoshi Kobayashi

Yuuya Kaname

Motohiro Atsumi

Tomokazu Ito

Shigeki Sato

Masazumi Arata

Hokuto Eda

Makoto Morita

Kyohei Tonoyama

Kazuhiro Watanabe

Kazuya Yamanaka

Shou Kawadahara

Hideto Itoh

Keita Takahashi

Yoshiaki Horikawa

Yasuo Asakura

Hideharu Moro

Setsuya Kataoka

Shuji Ono

Takashi Nakagawa

Kunio Yamamiya

Kazuhiro Mino

Yasuhiro Shinkai

Ayumu Isomura

Toshiyuki Anbo

Nobuo Miyairi

Yuji Ogasawara

Fusao Ishil

Kazuma Aral

A coil component in which a change in thicknesses of the winding part is prevented is provided. According to the coil component, since each of a pair of neighboring resin walls and a seed part between the pair of resin walls are separated by a predetermined distance, a plating part grown on the seed part is easy to grow uniformly between the pair of neighboring resin walls. For this reason, the winding part whose surface is gentle and in which a change in thickness is prevented is obtained by plating growth.

Coil component

In a coil component and a method for manufacturing the same, a winding part of a coil is grown by plating so as to extend between resin walls of a resin body provided before the coil is grown by plating. The resin wall is interposed between adjacent turns of the winding part of the coil during the plating growth, and therefore contact between adjacent turns of the winding part of the coil cannot occur.

Coil component having resin walls

In a coil componentand a method for manufacturing the same, a winding part of a coil is grown by plating so as to extend between resin walls of a resin body provided before the coil is grown by plating. The resin wall is interposed between adjacent turns of the winding part of the coil during the plating growth, and therefore contact between adjacent turns of the winding part of the coil cannot occur.

Coil component having resin walls and method for manufacturing the same

In a coil component (planar coil element), at least part of a third metal magnetic powder constituting a metal magnetic powder and having a minimum average grain diameter is uncoated, which suppresses a reduction in magnetic permeability. On the other hand, the remaining metal powders are coated with glass, which improves the insulating properties of a metal magnetic powder-containing resin and reduces core loss.

Coil component with covering resin having multiple kinds of metal powders

In a planar coil element and a method for producing the same, a metal magnetic powder-containing resin containing an oblate or needle-like first metal magnetic powder contains a second metal magnetic powder having an average particle size (1 &#x3bc;m) smaller than that (32 &#x3bc;m) of the first metal magnetic powder, which significantly reduces the viscosity of the metal magnetic powder-containing resin. Therefore, the metal magnetic powder-containing resin is easy to handle when applied to enclose a coil unit, which makes it easy to produce the planar coil element.

Planar coil element and method for producing the same

A coil componentis provided with coil conductorsandand a magnetic metal powder containing resin(and) covering the coil conductorsand. The magnetic metal powder containing resinincludes first metal powder having a first average grain diameter, second metal powder having a second average grain diameter that is smaller than the first average grain diameter, and third metal powder having a third average grain diameter that is smaller than the second average grain diameter. The first average grain diameter is 15 &#x3bc;m or more and 100 &#x3bc;m or less. The third average grain diameter is 2 &#x3bc;m or less. The first metal powder mainly contains Permalloy and the second and third metal powders mainly contain carbonyl iron.

Coil component and magnetic metal powder containing resin used therefor

A coil component includes a substrate, a planar spiral conductor formed on a top surface of the substrate, a lead conductor connected to an outer peripheral end of the planar spiral conductor, a dummy lead conductor formed on the top surface of the substrate between an outermost turn of the planar spiral conductor and an end of the substrate and free from an electrical connection with another conductor within the same plane, external electrodes and arranged in parallel with the top surface of the substrate, and a bump electrode formed on a surface of the lead conductor and connects the lead conductor with the external electrode. The external terminals have a larger area than the bump electrodes for securing a bonding strength.

A coil component includes: an insulating resin layer provided between a first planar spiral conductor formed on a back surface of a first substrate and a second planer spiral conductor formed on a back surface of a second substrate; an upper core covering a third second planer spiral conductor formed on a front surface of the first substrate on which the insulating resin layer is formed; and a lower core covering a fourth planer spiral conductor formed on a front surface of the second substrate on which the insulating resin layer is formed. One of the upper and lower cores is formed of a metal-magnetic-powder-containing resin. The coil component includes connecting portions disposed respectively at center and outside portions of each of the first and second substrates so as to physically connect the upper and lower cores.

Coil component and method for producing same

A coil componentincludes a substrate, a planar spiral conductorformed on a top surfaceof the substrate, a lead conductorconnected to an outer peripheral end of the planar spiral conductor, a dummy lead conductorformed on the top surface of the substrateand between an outermost turn of the planar spiral conductorand an endXof the substrateand free from an electrical connection with another conductor within the same plane, external electrodesandarranged in parallel with the top surface of the substrate, and a bump electrodeformed on a surface of the lead conductorand connects the lead conductorwith the external electrode. The external terminalsandhave a larger area than the bump electrodesandfor securing a bonding strength.

In a planar coil element, the quantitative ratio of inclined particles to total particles of a first metal magnetic powder contained in a metal magnetic powder-containing resin provided in a through hole of a coil unit is higher than the quantitative ratio of inclined particles to total particles of the first metal magnetic powder contained in the metal magnetic powder-containing resin provided in other than the through hole, and many of particles of the first metal magnetic powder in the magnetic core are inclined particles whose major axes are inclined with respect to the thickness direction and the planar direction of a substrate. Therefore, the planar coil element has improved strength as compared to a planar coil element shown in FIG.A and has improved magnetic permeability as compared to a planar coil element shown in FIG.B.

Planar coil element

A method for manufacturing a device comprising an elastic member on a substrate includes steps of: forming a sacrificial layer by forming a plurality of sacrificial sub-layers on the substrate; forming a plate member in or on the sacrificial layers connected to the substrate and substantially parallel to a top surface of the substrate; and removing the sacrificial sub-layers after forming the plate member by removing the sacrificial sub-layers in an order different from the reverse order of forming the sacrificial sub-layers.

Method for manufacturing a mirror device by means of a plurality of sacrificial layers

A color display device including: at least one spatial light modulation element forming a display picture by modulated light obtained by modulating illumination light, a color sequential light generation device changing in a time series the illumination light or the modulated light into multiple groups of different color lights in one frame of a display period of the display picture, a control device controlling the spatial light modulator, and a color sequential light generation device based on the input picture data. The control device controls the spatial light modulator and the color sequential light generation device to change the ratio of the display time of each color of the reflected light time-shared in the display period of the frame depending on the character and/or the set value of the input picture data.

Color display system

The present invention provides a projection apparatus that includes a mirror element and a drive circuit for driving a laser light source for projecting an illumination light. The projection apparatus further includes mirror device for modulating the illumination light and a projection lens for projecting the modulated light from the mirror element. The mirror device is disposed on a device substrate and packaged in a package substrate made of a transparent silicon material with a metallic thermal transfer path connected to the device substrate and a cover glass covering the package substrate. The distance between the mirror and the bottom surface of the cover glass is larger than the focal length of the projection lens.

Projection display system using laser light source

A video display system includes an image processing unit receives continuously an input video signal including input frame signals for generating an output video signal including output frame signals having a higher frame rate than the input frame signals; and a display unit for displaying a video image in accordance with the output frame signals, wherein each of the input frame signals has 2^M gray scale levels for each pixel, the image processing unit further generates the output frame signals including at least a first output frame signal having 2^N gray scale levels with N&#x3c;M for each pixel and a second output frame signal having [2^M-2^N] or fewer gray scale levels for each pixel.

Video display system

Growing community of inventors

Hachioji, Japan

Yoshihiro Maeda