Hitachi Media Electronics Co., Ltd.

Hitachi, Ltd.

Bridgestone Corporation

Hitachi-lg Data Storage, Inc.

Hitachi Automotive Systems, Ltd.

Hitachi Astemo Ltd.

Seiichi Katou

Hiroshi Ogasawara

Katsuhiko Kimura

Satoshi Horie

Hidenao Saito

Yoshiaki Yamauchi

Ikuo Nishida

Kazuyuki Fukuda

Manabu Ochi

Hirofumi Taguchi

Takayuki Fujimoto

Akio Yabe

Tatsuya Yamasaki

Yasushi Kinoshita

Ayano Otsubo

Kenji Watabe

Youichi Narui

Hitoshi Matsushima

Yasuhiro Yoshimura

Hidenori Shinohara

Atsushi Kazama

Seiji Hamaie

Atsushi Baba

Toshio Sugiyama

Jun Hato

Ryoji Okada

Kengo Suzuki

Shinya Tsubota

Nobuyuki Isoshima

Makoto Ibe

Hiroyuki Toyoda

Seiji Ono

Yukio Katou

Teruhisa Akashi

Yoshihiro Fukagawa

Kenichi Takeuchi

Kuniyuki Kimura

Kouhei Takita

Hideo Suenaga

Junichi Senga

Fumihito Ichikawa

Naomitsu Kuroda

Ryuichiro Mizuno

Hiroaki Nagai

Mieko Ishii

Hiromitsu Imamiya

Keisuke Masuda

The present invention provides a highly reliable stereo camera in which it is possible to prevent the heat generated by an image processing element from contributing to an increase in the temperature of an image sensor, even if the stereo camera is made more compact and the heat density is thus increased inside the stereo camera. The present invention includes: a pair of image sensorsthat have respective imaging elements disposed at the same height with a space therebetween; image processing elementsthat are disposed between the image sensors and process image signals captured by the image sensors; a casingthat has the image processing elements and the image sensors incorporated therein, and in the area between the image sensors, has an inclined surface that is inclined from the image sensorsdownward toward the imaging direction of the image sensors; an airflow paththat is defined so as to extend along the inclined surface of the casingtoward the imaging direction; and heat dissipating partsthat are thermally connected to the respective image processing elementsand disposed on the inclined surface so as to face the airflow path.

Stereo camera

In a laser light source module, a light source disposed on a base with a temperature adjusting element therebetween is covered by an inner cover, and is hermetically sealed by an outer cover. A top plate of the inner cover divides the inside of the outer cover into upper and lower sections and covers the light source from above. Side plates cover the side portions of the light source. Partitioning grid plates are provided in a space between the top plate and the outer cover, the partitioning grid plates dividing the space into multiple spaces.

Laser light source module and scanning image display apparatus

In an optical module and a scanning-type image display device, a reduction in heat insulating effect due to a natural convection generated between the optical module and a case is suppressed to alleviate laser overheating and thermal expansion or contraction of each component and obtain a stable projection image quality. In an optical module that couples laser beams from a plurality of laser beam sourcesand irradiates the laser beams to a desired position, a cover that covers the optical module is provided, a second cover is provided in a space between the optical module and the cover, and a projecting part is provided on a surface of the second cover facing the optical module.

Optical module and scanning-type image display device

An optical module has light source mounting parts that include a reinforcement plate for a circuit board on which a light source is mounted, and is attached to a lateral surface of a housing. The optical module includes a protrusion and a thermally conductive member. The protrusion is formed on the outer circumference of the lateral surface of the housing. The thermally conductive member includes a first surface and a second surface. The first surface is thermally conductively connected to a surface of the reinforcement plate. The second surface is thermally conductively connected to the protrusion. The thermally conductive member has an inclined surface on the back side of the first surface. The inclined surface is formed along the first surface in such a manner that the thickness between the first surface and the inclined surface increases with a decrease in the distance to the second surface.

Optical module and projection image display device

Process for producing a rubber composition comprising a rubber component (A) comprising at least one selected from natural rubbers and synthetic diene rubbers, a filler containing an inorganic filler (B), a silane coupling agent (C), and at least two kinds of chemical agents (D) and (E) selected from guanidines, sulfenamides, thiazoles, thiurams, dithiocarbamates, thioureas, and xanthates, wherein the rubber composition is kneaded in a plurality of stages wherein, in the first stage (X) of kneading, the rubber component (A), all or a portion of the inorganic filler (B), all or a portion of the silane coupling agent (C), and at least two kinds of the chemical agents (D) and (E) are added and kneaded.

Process for producing rubber composition

The present invention relates to a method for producing a rubber composition containing a rubber component (A) of at least one selected from natural rubbers and synthetic dienic rubbers, a filler containing an inorganic filler (B), a silane coupling agent (C) and at least one vulcanization promoter (D) selected from guanidines, sulfenamides, thiazoles, thiurams, dithiocarbamate salts, thioureas and xanthate salts, wherein the rubber composition is kneaded in at least three stages, in the first stage (X) of kneading, the rubber component (A), all or a part of the inorganic filler (B), and all or a part of the silane coupling agent (C) are kneaded, then in the stage (Y) on and after the second stage of kneading but before the final stage, the vulcanization promoter (D) is added and kneaded, and in the final stage (Z) of kneading, a vulcanizing agent is added and kneaded.

Method for manufacturing rubber composition

The present invention provides a method for producing a rubber composition containing a rubber component (A) of at least one selected from natural rubbers and synthetic dienic rubbers, an inorganic filler (B), a silane coupling agent (C) and an acidic compound (D), wherein the rubber composition is kneaded in multiple stages, and in the final stage of kneading, the acidic compound (D) is added, and the highest temperature of the rubber composition in the final stage of kneading is from 60 to 120&#xb0; C. The production method enables production of a rubber composition having a low-heat-generation property while successfully preventing the coupling function activity of the silane coupling agent from lowering.

The present invention relates to a method for producing a rubber composition containing a rubber component (A) of at least one selected from natural rubbers and synthetic dienic rubbers, a filler containing an inorganic filler (B), a silane coupling agent (C) and a vulcanization promoter (D), wherein the rubber composition is kneaded in multiple stages, and in the first stage of kneading, the rubber component (A), all or a part of the inorganic filler (B), and all or a part of the silane coupling agent (C) are kneaded, and then on the way of the first stage, the vulcanization promoter (D) is added and further kneaded. The production method enables production of a rubber composition having a low-heat-generation property while successfully preventing the coupling function activity of the silane coupling agent from lowering.

The present invention provides a method for producing a rubber composition containing a rubber component (A) of at least one selected from natural rubbers and synthetic dienic rubbers, a filler containing an inorganic filler (B), a silane coupling agent (C) and at least one vulcanization promoter (D) selected from thiurams, dithiocarbamate salts, thioureas and xanthate salts, wherein the rubber composition is kneaded in multiple stages, and in the first stage of kneading, the rubber component (A), all or a part of the inorganic filler (B), all or apart of the silane coupling agent (C) and the vulcanization promoter (D) are kneaded. The production method enables production of a rubber composition having a low-heat-generation property while successfully enhancing the coupling function activity of the silane coupling agent.

The present invention is a method for producing a rubber composition containing a rubber component (A) of at least one selected from natural rubbers and synthetic dienic rubbers, a filler containing an inorganic filler (B), a silane coupling agent (C), at least one vulcanization accelerator (D) selected from guanidines, sulfenamides and thiazoles, and an organic acid compound (E), wherein the rubber composition is kneaded in plural stages, the rubber component (A), all or a part of the inorganic filler (B), all or a part of the silane coupling agent (C), the vulcanization accelerator (D) and the organic acid compound (E) are kneaded in the first stage of kneading, and the number of molecules X of the organic acid compound (E) in the rubber composition in the first stage is in a relation of the following formula [1] relative to the number of molecules Y of the vulcanization accelerator (D) therein. The production method enables production of a rubber composition having a low-heat-generation property while successfully preventing the coupling function activity of the silane coupling agent from lowering.0&#x2266;X&#x2266;1.5&#xd7;Y&#x2003;&#x2003;[1]

A rubber composition for tires which comprises at least one rubber component selected from natural rubber and synthetic rubbers and, based on 100 parts by mass of the rubber component, 0.1 to 45 parts by mass of (A) a terpene phenol resin and 1 to 150 parts by mass of (B) a softener comprising a process oil which comprises polycyclic aromatic compounds (PCA) in an amount such that the content of extracts with dimethyl sulfoxide (DMSO) in accordance with the method of IP346 is controlled to a value smaller than 3%. A rubber composition for tires which overcomes problems arising due to the use of a highly aromatic oil having a content of polycyclic aromatic compounds (PCA) controlled to a value smaller than 3% as the process oil in place of conventional highly aromatic oils and exhibits excellent loss property and rigidity and a tire which uses the rubber composition and exhibits excellent steering stability on dry road surfaces and excellent braking property on wet road surfaces can be provided.

Rubber composition for tire and tire

An optical disc apparatus capable of reducing looseness vibrations resulting from a gap between a sub-guide shaft and a bearing is provided. According to an optical disc apparatus in the present invention, both ends of the sub-guide shaft are supported by being sandwiched between a pair of support parts formed in a chassis and a pair of pressing members mounted on the chassis. The support part is formed by bending a protruding portion both protruding in an inward direction of a hole from an edge of the hole of the chassis and extending along the direction perpendicular to the sub-guide shaft.

Optical disc apparatus with support part configured to reduce vibrations

An optical pickup apparatus comprises a laser beam source to generate laser beam, and a laser driving circuit to drive the laser beam source. The laser driving circuit is connected to a flexible substrate and arranged in a groove or hole provided in the vicinity of that portion of an optical pickup housing, to which the laser beam source is fixed. The laser driving circuit is connected through a heat conduction member to an upper cover among upper and lower covers, the upper cover being close to the laser driving circuit. Thereby, heat generated from the laser driving circuit is conducted through the heat conduction member to the upper cover to be transferred outside the optical pickup apparatus while being scattered in an inplane direction of the upper cover.

Optical pickup apparatus

An aspect of the invention provides an optical pickup in which an optical axis is not displaced even if ambient temperature is changed. The optical pickup of the invention has an optical unit and an optical pickup case. The optical unit has a lens member having an optical axis, and the optical axis of the lens member is offset to one side from the center of the optical unit. The optical pickup case holds the optical unit from both sides. A thermal expansion amount of the optical unit is absorbed by compression amounts of a first adhesive and a second adhesive such that the optical axis of the lens member is not displaced when the optical unit is thermal expanded.

Optical pickup having thermal expansion compensation

An optical pickup devicecomprising a laser diode, a photo detector, a housinghaving an optical system for guiding light from the laser diodeto an optical disk and guiding light reflected on the optical disk to the photo detector, a wiringto supply current to the laser diode, and a metallic coverprovided outside of the housing, wherein

Optical pickup device with heat radiating structure

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Tsuchiura, Japan

Seiichi Katou