Honda Giken Kogyo Kabushiki Kaisha

Uacj Corporation

Asahi Seimitsu Kabushiki Kaisha

Denso Corporation

Furukawa-sky Aluminum Corporation

Pentax Precision Co., Ltd.

Honda Giken Kogyo Kaisha

Yoichi Kojima

Yorinori Kumagai

Yoshihiro Kodama

Junji Nunomura

Homu Takayama

Tsunefumi Niiyama

Takashi Hotta

Yukio Morita

Yukio Honkawa

Kimihiko Kikuchi

Hiroshi Nakayama

Haruo Tanaka

Shunichiro Wakamiya

Tatsuo Gotoh

Toshiki Takeda

Masakazu Yamagata

Makoto Ando

Akio Niikura

Masaki Harada

Sadayuki Kamiya

Tomoharu Kumagai

Shinichi Sakaguchi

Yoshiyuki Oya

Masafumi Saito

Mikito Ueda

Taketoshi Toyoma

Shinichi Suzuki

Kenji Matsumoto

Hiroyuki Makino

Kazuhisa Yamamoto

Kiyotaka Hayashi

Haruhiko Yoshikawa

Naoki Itoh

Kouhei Ohzono

Kiminobu Terao

Koichi Ui

Hiroyuki Kuwahara

The method for producing an electrolytic aluminum foil of the present disclosure is a method for producing an electrolytic aluminum foil, the method including supplying an electrolytic solution in an electrolytic cell provided with a diaphragm between an anode and a cathode and depositing an aluminum foil on a surface of the cathode by electrolysis, wherein the diaphragm is made of aluminum having a purity of 85.0% or more and has a plurality of pores having an average pore diameter of 100 to 1000 &#x3bc;m.

Method and apparatus for producing electrolytic aluminum foil

A method for producing aluminum includes: a dissolution step of dissolving a hydrate containing Al in water to prepare an aqueous solution that contains Al ions; an extraction step of bringing an organic phase that is composed of an extractant into contact with an aqueous phase that is composed of the aqueous solution to extract the Al ions in the aqueous phase into the organic phase; and an electrodeposition step of electrolyzing the organic phase as an electrolytic solution to electrodeposit metallic Al onto a surface of a cathode from the Al ions in the electrolytic solution.

Method for producing aluminum

The present disclosure provides a high-quality electrolytic aluminum foil which includes a smooth surface and an end portion containing no dendritic deposit, and a method for producing the same which can obtain the electrolytic aluminum foil at a high collection rate. An electrolytic aluminum foil of the present disclosure includes a surface having an arithmetic average height (Sa) of 0.15 &#x3bc;m or less, wherein when, for a size of a crystal grain present in a cross-sectional surface, a first maximum dimension as measured in a thickness direction of the cross-sectional surface is x (&#x3bc;m), and a second maximum dimension as measured in a width direction of the cross-sectional surface is y (&#x3bc;m), x and y satisfy (x+y)/2&#x2264;3 &#x3bc;m and 1&#x2264;x/y&#x2264;4.

Electrolytic aluminum foil and method of manufacturing same

A production method of aluminum including: a step of synthesizing an aluminum compound from a mixture including a halogenated aluminum hydrate and a perfluoroalkylsulfonimide-type or perfluoroalkylsulfonamide-type ionic liquid represented by general formula (1); a step of dissolving the aluminum compound in a nitrile-based organic solvent to prepare an aluminum electrolyte; a step of adding at least one ligand selected from a phosphorus compound and an organic compound having an amide group to the aluminum electrolyte and dehydrating water molecules from a hydrate included in the aluminum electrolyte; and a step of electrodepositing aluminum on a cathode by allowing electricity to pass between an anode and the cathode in the aluminum electrolyte after the dehydrating step.

Production method of aluminum using hydrate

A method for producing high quality electrolytic aluminum foil excellent in peelability from a cathode surface is provided. A method for producing electrolytic aluminum foil according to the present disclosure is a method for producing electrolytic aluminum foil, comprising steps of depositing an aluminum film on a surface of a cathode in an electrolytic cell supplied with an electrolytic solution and comprising the cathode; and peeling the deposited aluminum film from the surface of the cathode to provide aluminum foil, wherein the cathode has surface roughness of an arithmetic average roughness (Ra) of 0.10 to 0.40 &#x3bc;m and a ten-point average roughness (Rz) of 0.20 to 0.70 &#x3bc;m.

Method for producing electrolytic aluminum foil

An aluminum alloy brazing sheet having a good brazing property that prevents diffusion of molten filler material in a core material of the aluminum alloy brazing sheet during a brazing process and which has a superior corrosion resistance to an exhaust gas condensate water after the brazing process is disclosed. A method of manufacturing of the aluminum alloy brazing sheet also is disclosed. A high corrosion-resistant heat exchanger that employs the aluminum alloy brazing sheet also is disclosed.

High corrosion-resistant aluminum alloy brazing sheet, method of manufacturing such sheet, and corrosive-resistant heat exchanger using such sheet

High-corrosion-resistant aluminum alloy brazing sheet, method of manufacturing such sheet, and corrosive-resistant heat exchanger using such sheet

A rotary fluid machine includes a first operating part () and a second operating part (), which are groups of axial piston cylinders, wherein a rotary valve () for controlling the intake and discharge of a working medium to and from the first and second operating parts () is formed from a first valve part that has a flat sliding surface () perpendicular to a rotational axis (L) of the rotor () and controls the intake and discharge of the working medium to and from the first operating part (), and a second valve part that has a cylindrical sliding surface () centered on the rotational axis (L) of the rotor () and controls the intake and discharge of the working medium to and from the second operating part (). Since the intake and discharge of the working medium to and from the first and second operating parts () are controlled by the common rotary valve (), the size of the rotary fluid machine can be reduced.

Rotary hydraulic machine

An integral transmitter-receiver optical communication apparatus, including: a transmitter-receiver device including: a transmitter having a laser source for emitting a laser beam modulated in accordance with a transmission information signal, a receiver having a position detecting sensor and a light receiving element each of which receives a complementing modulated laser beam transmitted from a complementing transmitter, and a beam splitting device for splitting the modulated laser beam and the complementing modulated laser beam into two separate laser beams; a telescopic optical system for transmitting the modulated laser beam emitted by the laser source, and for receiving the complementing modulated laser beam transmitted from the complementing transmitter, the telescopic optical system including a first afocal optical system; a light beam deflecting device positioned between the telescopic optical system and the transmitter-receiver device, wherein the light beam deflecting device is controlled in accordance with a signal output from the position detecting sensor; and a second afocal optical system positioned between the light deflecting device and the transmitter-receiver device.

Integral transmitter-receiver optical communication apparatus and a crosstalk preventive device therefor

Disclosed is an integral transmitter-receiver optical communication apparatus, including: a transmitter-receiver device which includes: a transmitter having a laser source for emitting a laser beam modulated in accordance with a transmission information signal, a receiver having a position detecting sensor and a light receiving element which receive a complementing modulated laser beam transmitted from a complementing transmitter, and a beam splitting device for splitting the modulated laser beam and the complementing modulated laser beam which are incident thereon as two separate laser beams; a telescopic optical system for transmitting the modulated laser beam emitted by the laser source and for receiving the complementing modulated laser beam transmitted from the complementing transmitter; and a light beam deflecting device positioned between the telescopic optical system and the transmitter-receiver device, wherein the light beam deflecting device is controlled in accordance with a signal output from the position detecting sensor.

Integral transmitter-receiver optical communication apparatus

An optical axis correcting system includes a first afocal optical system, an optical deflector which corrects the deviation of an optical axis of light incident upon the first optical system, a second afocal optical system, and a light convergent optical system. The optical axis correcting system satisfies (1) 3.60&lt;.vertline.fp(I)/fN(I).vertline.&lt;5.30, (2) 1.00&lt;.vertline.fp(II)/fN(II).vertline.&lt;2.41, and (3) 0.12 &lt;r1 (II)/f&lt;0.23, wherein fp(I) represents the focal length of a positive lens group of the first optical system, fN(I) represents the focal length of a single negative lens element of the first optical system, fp(II) represents the focal length of a positive lens group of the second optical system, fN(II) represents the focal length of a negative lens group of the second optical system, r1(II) represents the radius of curvature of the surface oif a positive lens element of the second afocal optical system closest to the optical deflector, and f represents the focal length of the whole optical system.

Optical axis correcting system

In a focusing method for a surveying instrument having a sighting telescope for sighting an object and a distance measuring device for measuring the distance of the object, an automatic focusing function in which the focus state ofthe sighting telescope is detected so that an optical focusing system is automatically focused on the object in accordance with the focus state thus detected, or a distance priority focusing function in which the optical focusing system of the sighting telescope is driven in accordance with the object distance measured by the distance measuring device, is selectively used. The disclosure is also directed to a focusing apparatus and a surveying instrument.

Focusing method and apparatus for a surveying instrument having an AF

In a hydraulic brake for a transmission, an assist piston, a reaction piston and a main piston are accommodated on a cylinder. The assist piston has a first acting portion in abutment against the main piston, and the main piston has a second acting portion facing one end of stacked frictional engaging elements. The assist piston and the main piston are moved rightwardly by a hydraulic pressure supplied to a first oil chamber and a second oil chamber to bring the frictional engaging elements into engagement with one another. The first and second acting portions are superposed as viewed axially, thereby preventing a jarring of the assist piston and the main piston. In one embodiment, each of the pistons is formed from a pressed article, whereby the machining cost can be reduced and, moreover, oil passages connecting the first and second oil chambers can be provided in a simple manner.

Hydraulic brake for transmission

Frictional engagement elements of a first hydraulic clutch and frictional engagement elements of a second hydraulic clutch are supported on a common clutch drum on opposite sides of a snap ring. Openings are defined respectively in the clutch drum and an urging member which is formed integrally with a clutch piston of the second hydraulic clutch for urging the frictional engagement elements toward the snap ring. An urging member for urging the frictional engage elements toward the snap ring is connected to a clutch piston of the first hydraulic clutch and extends through the openings to the outside of the clutch drum. Thus, the pair of hydraulic clutches disposed in a tandem fashion can be operated stably without interference from each other.

Tandem type hydraulic clutch system

A support shaft is fixed to a casing of a transmission. A main shaft is relatively rotatably fitted to an inner periphery of the support shaft with a needle bearing interposed therebetween, and a clutch hub is relatively rotatably fitted to an outer periphery of the support shaft. An annular groove is defined around the outer periphery of the support shaft and divided into an oil discharge groove and an oil supply groove by a pair of weirs. An oil supplied from an oil passage is supplied to a canceller oil chamber through the oil supply groove and oil holes in the clutch hub. The oil in the canceller oil chamber is discharged through the oil holes, the oil discharge groove, oil passages in the support shaft, the needle bearing and oil passages in the main shaft. Thus, it is possible to quickly supply and discharge the oil into and from the canceller oil chamber in the hydraulic clutch, thereby preventing a failure of engagement of the hydraulic clutch at the starting of an engine at a low temperature and a dragging of the hydraulic clutch after the starting of an engine.

Oil supplying and discharging structure for canceller in hydraulic clutch

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Saitama, Japan

Yoichi Kojima