Hitachi, Ltd.

Other

Unicharm Corporation

Hitachi Construction Machinery Co., Ltd.

Yuji Yoshitomi

Shigeo Ohashi

Yoshihiro Kondo

Tsuyoshi Nakagawa

Takashi Naganawa

Rintaro Minamitani

Makoto Kitano

Noriyuki Ashiwake

Hideaki Kamohara

Shigeru Machida

Masato Nakanishi

Yasuhiko Sasaki

Yoshishige Endo

Masahiro Takebayashi

Shinji Matsushita

Koichi Inaba

Akihiko Yamamoto

Kazuhiro Makino

Hiroshi Higaki

Minoru Imamura

Yasunori Yamada

Hiroshi Nomura

Syuzo Uno

Junichi Kobayashi

Genroku Sugiyama

Shinji Tanaka

Kenji Tojo

Ichiro Wada

Masatsugu Arai

Kunihiko Takao

Hiroaki Hata

Miou Suzuki

Hirokatsu Kohsokabe

Koichi Sekiguchi

Akiomi Kohno

Takeshi Araya

Tamio Ishihara

Hidekazu Tokushima

Zensuke Tamura

Shunichi Mitsuya

Yasumasa Tamai

Kazuaki Yokoi

Kazuo Sekigami

Yutaka Sakurai

Toshikazu Takehana

Takamitsu Nakazaki

Takaichi Koyama

Tadayoshi Yano

Ryousuke Miyagawa

Wataru Idetsu

Eiichi Satoh

Akiomi Kono

Kenji Shimada

Tsutomu Nozaki

Kyozo Yoshioka

Yoshimasa Murakami

Shota Iwakura

Norio Yokoba

Tadasi Takata

Teruo Nuwa

Akiomi Kouno

Keiji Omura

Iwao Sasaki

Toji Nakatui

Toshimi Sato

An automatic urine disposal device has a urine collecting pad, vacuum pump, and urine tank. In the urine collecting pad, the top sheet comes in contact with the wearer's skin, the hydrophilic sheet is disposed on the bottom of the top sheet, and the urine absorbent sheet is disposed at the bottom. When discharged urine flows in the top sheet, the hydrophilic sheet widely diffuses urine to saturate its entire surface and then becomes non-breathable. As the vacuum pump vacuums the air from the urine tank, urine is directed from a urine drainage port of the urine collecting pad via a urine drainage tube to the urine tank which is a sealed container.

Automatic urine disposal device and urine receptacle used therefor

An electronic module which is detachably mounted on electronic equipment. The electronic module includes a board having a heat generator mounted on a surface thereof, and a cooling jacket which is integrally attached to the electronic module. The cooling jacket is thermally coupled to the heat generator and has a passage of a cooling fluid therewithin.

Electronic equipment

A liquid cooling system having a circulator for circulating a cooling liquid therethrough including an input portion for receiving the cooling liquid and a separate output portion for supplying the cooling liquid. A heat receiving jacket supplied with the cooling liquid from the circulator and positioned to received heat generated from a heat generation body, a heat radiation portion for radiating heat which is supplied by the cooling liquid passing through the heat receiving jacket, and a member for circulating the cooling liquid passing through the heat radiation portion into the circulation means so that the cooling liquid circulates within a closed flow passage. An accumulating portion is further formed within a portion of the closed flow passage for accumulating the cooling liquid therein.

Liquid cooling system and personal computer using thereof

A liquid cooling system which is utilizable in a personal computer includes a pump for supplying a cooling liquid; a heat receiving jacket supplied with the cooling liquid and positioned to receive heat generated from a heat generation body, a heat radiation pipe for radiating heat which is supplied by the cooling liquid passing through the heat receiving jacket, and a passage for circulating the cooling liquid passing through the heat radiation pipe into the pump. The heat radiation pipe is made of material having a corrosion resistance that is higher than that of the heat receiving jacket.

Liquid cooling system and personal computer using the same

A liquid cooling system includes a pump for supplying a cooling liquid including water, a heat receiving jacket supplied with the cooling liquid and positioned to receive heat generated from a heat generation body, a heat radiation portion for radiating heat which is supplied by the cooling liquid passing through the heat receiving jacket, and a member for circulating the cooling liquid passing through the heat radiation portion into the pump. Different parts of the liquid cooling system are provided with different corrosion resistance against the cooling liquid.

A spindle motor having a bearing housing and a thrust bearing fitted in the bearing housing at the lower end of the latter, in which an inclined part is formed on the outer peripheral edge at the lower end of the thrust bearing, and the outer diameter part of the thrust bearing is fitted in a coupling bore formed in the end surface of the bearing housing, the end surface of the bearing housing being pressed uniformly in the axial direction over the entire circumference around the coupling bore to cause the bearing housing to plastically flow around the coupling bore in order to cover the above-mentioned inclined part of the thrust bearing. The above-mentioned covering part formed in the bearing housing through plastic flow can exhibit a high bonding strength between the bearing housing and the thrust bearing in the spindle motor without deteriorating the sealing ability of the spindle motor, due to a shearing force and a residual contact pressure of the covering part.

Spindle motor and manufacture thereof

A cooling device for an electronic apparatus, comprising: a heat generating element attached within a first housing; a heat receiving jacket, being connected with said heat generating element, and being attached within said first housing; a second housing being rotatably supported on said first housing; a first heat exchanger attached within said second housing, for exchanging heat between an outside; and a liquid driving means for supplying a cooling liquid to said heat receiving jacket, wherein a portion of a pipe for connecting between said heat receiving means, said first heat exchanger, and said liquid driving means is made of a flexible tube made of a resin, and further wherein, a second heat exchanger and an ion exchanger are provided in a part of said pipe, said second housing is received within said second housing, and said ion exchanger is received within said second housing.

Cooling device of electronic apparatus

A plurality of electronic apparatuses, each apparatus having a closed loop cooling system, are installed in a cabinet having another closed loop fluid cooling system. Each of the closed loop fluid cooling systems includes a heat receiver and a pump. A projection is mounted on the electronic apparatus and a switching valve is arranged on the cabinet to stop or start circulation of a cooling fluid.

A liquid cooling system for cooling a high heat generating body, such as a semiconductor element or the like, of the type used in an electronic apparatus that is small and thin in size, or in a personal computer equipped with such a structure therein. The system has a pump of the reciprocal movement type, a heat receiving jacket, a heat radiation pipe, and a connector pipe for connecting those parts with one another so as to form a closed loop filled with a cooling liquid. In the system, &Dgr;Vs is equal to or greater than &Dgr;Vp, wherein the inner volume change when the pump emits pulsation therefrom is &Dgr;Vp, the pressure caused by the volume change is P, and the volume change due to the pressure P that occurs in flow passage of the cooling liquid &Dgr;Vp other than within the pump, is &Dgr;Vs.

A liquid cooling system for a personal computer is suitable for cooling a semiconductor device, etc, generating high heat and is designed to suppress undesirable influence on the personal computer following corrosion in the liquid cooling system, thereby ensuring the dependability of the system as a whole. The liquid cooling system has a pump for supplying cooling liquid; a heat receiving jacket supplied with the cooling liquid and positioned to receive heat generated from a heat generation body; a heat radiation pipe for radiating heat which is supplied by the cooling liquid passing through the heat receiving jacket; and a passage for circulating the cooling liquid passing through the heat radiation pipe into said pump. The heat radiation pipe is made of a material having a corrosion resistance that is higher than that of the heat receiving jacket.

Hardened surface layers ( ) and ( ) of a nitride or other compound, which is higher in hardness than dirt or soil, are formed on the inner peripheral surface ( B) of each metal bush ( ) and on the outer peripheral surface ( A) of each connecting pin ( ) which constitute a crawler belt ( ), respectively. In addition, resinous sliding bearings ( ) are fitted in transversely spaced positions on the inner periphery of each metal bush ( ) of the crawler belt. Bearing ( ) is provided with recessed grooves ( ). Accordingly, part of soil or dirt which intrudes into a gap space between an outer link portion ( ) of a track link and a metal bush ( ) through an annular seal member ( ) is trapped on an inner peripheral surface ( A) of the bearing ( ).

Crawler

A displacement type fluid machine in which a displacer and a cylinder are disposed between end plates, a space is formed by an inner wall surface of the cylinder and an outer wall surface of the displacer when the center of the displacer is put on the center of the cylinder, and a plurality of spaces is formed when the positional relationship between the displacer and the cylinder is for a gyration, is restrained from deterioration of the efficiency. One of the end plates and a vane protruding inwardly from the inside surface of the cylinder are fixed to each other so as to restrain the deformation of the vane and decrease the leakage of a working fluid due to the deformation.

Displacement type fluid machine

A scroll type compressor comprises a stationary scroll and a rotary scroll which is assembled with the stationary scroll so as to define a closed space, the outer surface of the rotary scroll 22 is formed thereon with a tin compound film containing a tin compound and having a thickness of 50 .mu.m. Such a coating film is never peeled off from a member even after long time operation, and is excellent in sealability and conformability, in the displacement type compressor.

Displacement type compressor and method of forming coating film

Fixed scrolls 4, 5 are supported so to be movable axially relative to an orbiting scroll 6, so that a proper space is kept between wraps 4a, 5a and 6a to avoid an excessive load in the contacting area. Further, an end portion of an outer curve of the wrap 6a of the orbiting scroll 6 is formed to come close to or coincide to an outer edge of a panel 6f of the orbiting scroll 6 and an Oldham's coupling is accommodated in a concave groove 6e formed on an outer circumference surface of the panel 6f, so that the size of the scroll compressor is reduced.

Scroll compressor having an orbiting scroll with volute wraps on both

A method of forming a non-circular pipe having a different sectional shape in the longitudinal direction thereof by bending a raw pipe while applying pressure to the inside of the raw pipe, wherein the circumference of a section of the raw pipe is substantially equalized to the circumference of a section, corresponding to the section of the raw pipe, of the non-circular pipe after formed.

Method and apparatus for forming a non-circular pipe

Growing community of inventors

Chiyoda, Japan

Yuji Yoshitomi