Fuji Jukogyo Kabushiki Kaisha

Hitachi, Ltd.

Other

Mitsubishi Denki Kabushiki Kaisha

Mitsui Petrochemical Industries, Ltd.

Japan Drilling Co., Ltd.

Tohoku University

Origin Electric Company, Limited

Nippon Electric Co., Ltd.

Hitachi Global Storage Technologies Japan, Ltd.

Japan Oil, Gas and Metals National Corporation

The University of Electro-communications

Hitachi Global Storage Technologies

Fuji Heavy Industries Ltd.

Director of National Food Research Institute, Ministry of Agriculture,

Toshio Kobayashi

Naoki Koyama

Hideo Tanabe

Isamu Yuito

Ryoichi Nakatani

Hisashi Takano

Kazuo Shiiki

Eijin Moriwaki

Masahiro Kitada

Noboru Shimizu

Masaaki Futamoto

Yoshibumi Matsuda

Mikio Suzuki

Kyo Akagi

Takeshi Nakao

Yoshinori Miyamura

Fumio Kugiya

Hirotsugu Fukuoka

Takayuki Munemoto

Tokuho Takagaki

Hideo Todokoro

Tohru Ishitani

Noriyuki Kumasaka

Tsuyoshi Ohnishi

Chiaki Ishikawa

Shigekazu Otomo

Suguru Nagae

Toshio Takano

Shigeaki Yamanaka

Kazuki Kubo

Takamitsu Fujimoto

Kiyonori Fujisaki

Fusaoki Uchikawa

Kazumasa Takagi

Kenzo Susa

Kenji Nomura

Kazuko Wakita

Heihachi Kato

Hitoshi Nakamura

Tetsuya Matsumoto

Kazuo Sakai

Masao Morita

Kazuyoshi Takayama

Noritoshi Saito

Tetsu Oi

Kiyomi Watanabe

Masayuki Kodama

Akifumi Kato

Sei Tsunoda

Tadashi Masuda

Keiichi Maruyama

Michiharu Suga

Kiyoshi Komatsu

Hiroyuki Ikoshi

Shouichi Yokoyama

Yukio Ohnuki

Shinichirou Mura

Kikuo Hayama

Shin Hasegawa

Masao Teraoka

Mamoru Kioka

Yusuke Yajima

Norio Ohta

Keiki Yamada

Hiroshi Takeuchi

Masatoshi Takeshita

Takeo Yamashita

Tokuumi Fukazawa

Tokio Isogai

Kazuo Nate

Keiko Kushida

Seiichiro Hirata

Masanobu Iwasaki

Yoshihiro Hamakawa

Masakazu Ichikawa

Toshiyuki Toyoshima

Nagatugu Koiso

Kouichirou Tsutahara

Takashi Arai

Takanobu Takayama

Akio Ohdaira

Satoshi Taniguchi

Hiromi Hirase

Akira Yokoyama

Mitsuru Ishii

Hiromitsu Yamamoto

Koe Enmanji

Susumu Okayama

Hiroki Someya

Kenta Matsubara

Akihiko Nakano

Eiji Tauchi

Masahiko Fujishiro

Shigeo Tsuda

Fumio Fujiwara

Mitsuru Watari

Mutsuhiko Ohnisi

Hiroshi Iizuka

Shuuichi Nishimura

Michio Endo

An object is to provide a method capable of boring a borehole even when quartz glass or silicon dioxide is deposited as molten dross by laser irradiation. A laser irradiation position of a workpiece is irradiated with a laser having wavelength of 1.2 &#x3bc;m or longer and a high factor of absorption into liquid, for example, a CO2 laser, from a laser oscillator through liquid. By high pressure generated in an advancing microbubble flow occurring in the liquid, molten dross is scattered. Thus, the processing, such as boring, of the rock is performed.

Method of processing rock with laser and apparatus for the same

An excavation technique for a stratum capable of excavating a submerged stratum such as a layer containing an underground resource by using laser irradiation in liquid is provided. In this technique, a laser beam transmitted through laser transmission meansis irradiated in liquidin form of a laser beam having a wavelength with high absorptance of the liquidby laser-induced bubble generation means, generating a bubble flow, thus excavation of a submerged stratum may be carried out by using a laser-induced destruction effect. Moreover, a laser beamhaving low absorptance of the liquidis irradiated by laser irradiation meansand passed through the bubble flow, thereby applying a thermal effect to a stratum to destroy rock and excavate the stratum. The destruction effect and the thermal effect also may be cooperatively worked.

Method and device for excavating submerged stratum

A sputtering apparatus is provided with a DC power supply, an inverterthat converts DC voltage to AC voltage, a matching circuitthat transforms the AC voltage, a rectifierthat converts the transformed AC voltage to direct current, and a sputtering load. The matching circuithas a transformerthat transforms AC voltage from the inverter, inductance L provided in series with at least one of the primary windingand secondary winding, and a condenser C provided in parallel with at least one of the primary windingand secondary windingthrough inductance L.

Sputtering apparatus

The magnetoresistance effect element is of a multilayered structure having at least magnetic layers and an intermediate layer of an insulating material, a semiconductor or an antiferromagnetic material against the magnetic layers, and the magnetoresistance effect element has terminals formed at least on the opposite magnetic layers, respectively, so that a current flows in the intermediate layer. The film surfaces of all the magnetic layers constituting the magnetoresistance effect element are opposed substantially at right angles to the recording surface of a magnetic recording medium. Therefore, the area of the magnetic layers facing the recording surface of the magnetic recording medium can be extremely reduced, and thus the magnetic field from a very narrow region of the high-density recorded magnetic recording medium can be detected by the current which has a tunneling characteristic and passes through the intermediate layer.

Method for manufacturing magnetic head device

Magnetic apparatus with perpendicular recording medium and head having multilayered reproducing element using tunneling effect

An automatic transmission with input shaft having drive gears and an output shaft with driven gears engaging with the drive gears are provided. A transmission gear for transmitting a power is selectively switched from transmission gear trains of the drive gears and driven gears, by a switching mechanism. An input clutch for switching engine power transmission and input shaft disconnect states is arranged between an engine crankshaft and the input shaft. Bypass clutches capable of transmitting the power to the respective transmission gear trains are provided at an end portion of the input shaft, and the engine power is transmitted to the output shaft via at least any one of the bypass clutches at a time of shifting gears. The input clutch and the plurality of bypass clutches are concentrically arranged in series between the engine and the input shaft providing size reduction.

Automatic transmission

This discharge power supply apparatus is for supplying a D.C. voltage to a discharge loadand discharging the same. The discharge power supply apparatus includes an inverter circuitthat converts D.C. voltage to A.C. voltage; a transformerhaving a primary windingto which the A.C. voltage output by the inverter circuitis supplied and a secondary winding; a full-wave rectifier circuitthat has a plurality of diodesA toD and rectifies the A.C. voltage generated by the secondary winding; and a trigger capacitorconnected in parallel to a part of the diodes of the full-wave rectifier circuit

Discharge power supply apparatus

A method for boring a well with a laser beam is provided, the method comprising: shining the laser beam into a conduit, wherein the laser beam is guided through the conduit by the internal reflectivity of said conduit; and extending the conduit into the well, so that the laser beam exiting the conduit shines onto an area in the well to be bored. A system for boring a well with a laser beam is also provided, the system comprising: a means for shining the laser beam into a conduit; wherein the laser beam is guided through the conduit by the internal reflectivity of said conduit; and a means for extending the conduit into the well, so that the laser beam exiting the conduit shines onto an area in the well to be bored. An apparatus is provided as well, comprising a conduit that is extendable into the well, and an inner surface inside of the conduit, wherein the inner surface is reflective to the laser beam.

Laser boring method and system

An automatic transmission has concentric first and second input shafts, and a parallel output shaft. A plurality of transmission gear trains are provided between the input shafts and the output shaft. An input switching shaft is arranged in parallel with the input shafts and the output shaft, and is provided with a first friction clutch switch switches into a power transmission state and a disconnection state with respect to the first input shaft, and a second friction clutch which switches into a power transmission state and a disconnection state with respect to the second input shaft. Engine power is bypassed to the input switching shaft so as to be transmitted to the output shaft via the first friction clutch or the second friction clutch and to effectively shorten the entire length of the transmission.

Automatic transmission for vehicle

In a composite magnetic head comprising a magnetoresistive read head including a magnetic thin film having a magnetoresistive effect and soft magnetic members interposing the soft magnetic film between them through a non-magnetic insulation layer, an induction type write head including poles formed in a moving direction of a medium and a conductor crossing the poles, and disposed in the proximity of the magnetoresistive head, and a substrate supporting these heads, the present invention discloses a composite magnetic head characterized in that part of a floating surface inclusive of the magnetic head constituent members has recesses and the read/write operations to and from the medium are effected by the portion interposed by these recesses.

Combination perpendicular magnetic head having shield material formed at both ends of an upper pole of a write element

In a power transmitting system of a four-wheel drive vehicle in which driving force provided from a transmission coupled to a laterally mounted front drive engine is distributed to front and rear wheels through a transfer disposed behind the engine, the transfer comprises a pair of bevel gears which change a transmission direction of the driving force; a first and second gears which shift an axis of a pinion shaft in parallel; and an output shaft which is rotatably inserted into the second gear. A hydraulic multi plate clutch couples the second gear and the output shaft so that engagement and disengagement are freely allowed, and is disposed on the axis of the second gear and more closely to the engine side than the second gear. Additionally, a spline shaft formed at a top of an input shaft of the propeller shaft is spline-fitted into the second output shaft. Thereby, back-and-force shift is allowed. A steering gear box is located in downward of the front side input shaft.

Power transmitting system for four-wheel drive vehicle

An automatic transmission having gear trains provided between an input shaft and an output shaft, the gear trains including drive gears mounted on the input shaft and driven gears mounted on the output shaft, includes a start clutch provided between a crankshaft of an engine and the input shaft for transmitting or shutting off an engine power from a crankshaft of the engine to the input shaft, a changeover mechanism for selecting a desired gear train through which power is transmitted from a plurality of gear trains, two bypass clutches, one is provided between third gear transmission gear trains and another is provided between sixth gear transmission gear trains for transmitting a different torque from the input shaft to the output shaft respectively, on gearshiftings and a bypass clutch control means for selecting at least one desired bypass clutch through which power is transmitted.

In an longitudinal type automatic transmission having an input shaft having driving gears, an output shaft having driven gears that are engaged with the driving gears to constitute transmission gear trains, and changeover mechanisms for selecting into a transmission gear train for transmitting a power, the automatic transmission is constructed to have the input shaft, the output shaft, and a driving shaft coupled to a final reduction gear, and has a bypass clutch that is arranged over the final reduction gear to transmit a torque to the output shaft while executing the control in a shifting operation and a start clutch for coupling or decoupling an engine and the input shaft. An oil pump for driving the start clutch and the bypass clutch is arranged over the final reduction gear and near the bypass clutch.

A power transmission apparatus for use with a four-wheel drive vehicle, which distributes a driving force output from a transmission coupled to a transverse layout engine to the front and rear wheels, through a transfer disposed on the rear side of the engine. The transfer includes a pair of direction-changing gears for changing a transmission direction of a driving force, first and second gears for displacing in parallel the center axis of a pinion shaft whose direction is changed by the direction-changing gears, and an output shaft, rotatably inserted through the second gear, for transmitting a driving force to the rear wheels. In the transfer, an electromagnetic clutch for coupling the second gear to the output shaft in a decoupling manner is disposed at a position closer to the engine than the second gear and on the center axis of the second gear.

Power transmission apparatus for four-wheel drive vehicle

The magnetoresistance effect element is of a multilayered structure having at least magnetic layers and an intermediate layer of an insulating material, a semiconductor or an antiferromagnetic material against the magnetic layers, and the magnetoresistance effect element has terminals formed at least on the opposite magnetic layers, respectively, so that a all the magnetic layers constituting the magnetoresistance effect element are opposed substantially at right angles to the recording surface of a magnetic recording medium. Therefore, the area of the magnetic layers facing the recording surface of the magnetic recording medium can be extremely reduced, and thus the magnetic field from a very narrow region of the high-density recorded magnetic recording medium can be detected by the current which has a tunneling characteristic and passes through the intermediate layer.

Magnetic head with conductors formed on endlayers of a multilayer film having magnetic layer coercive force difference

Growing community of inventors

Tokyo, Japan

Toshio Kobayashi