Mitsubishi Denki Kabushiki Kaisha

Showa Denko Kabushiki Kaisha

Canon Kabushiki Kaisha

Sony Corporation

Mitsubishi Electric Corporation

Showa Denko K.k.

Cabot Corporation

Global Advanced Metals Usa, Inc.

Nkk Tubes

Global Advanced Metals Japan K.k.

Hitoshi Iijima

Naoki Tanaka

Yoshiaki Tanimura

Fumio Matsuoka

Takayuki Yoshida

Masaki Toyoshima

Yoshihiro Sumida

Kunio Nishimura

Toshihide Koda

Hidekazu Tani

Takashi Gotoh

Tsuneo Yumikura

Mihoko Shimoji

Michimasa Takeshita

Osamu Morimoto

Masahiro Sugihara

Takashi Nakamura

Tomohiko Kasai

Kiyoshi Sakuma

Kisuke Yamazaki

Hiroaki Hama

Moriya Miyamoto

Yasuo Nakashima

Fujio Hitomi

Mitsuo Umehara

Yujiro Mizusaki

Shinichi Wakamoto

Fumitake Unezaki

Yasuo Sato

Masaru Ohtsuka

Hidenori Ishioka

Akio Fukushima

Hiroyuki Umemura

Kazuaki Isono

Seiichi Kamiya

Fumihiko Kato

Yoshimichi Minakata

Yusuke Minami

Masaki Ikeuchi

Tomofumi Tezuka

Tatsuo Ono

Takeshi Izawa

Toshizo Nishizawa

Toshihiko Fukui

Shigeaki Sato

Atsushi Maeda

Takeshi Kuramochi

Hiroshi Kasagi

Masayuki Kiuchi

Motohisa Yoshida

Masayuki Nishinaka

Junji Tamari

Takashi Shiga

Masahiro Nakao

Yoshikazu Noguchi

Osamu Kubota

Isao Sugiyama

A refrigeration cycle devicewhere a combustible refrigerant circulates includes a bypass pipethat is connected so that part of the refrigerant that flows through a circulation pipe extending from a condenserto a flow control valvebypasses the flow control valveand an evaporator; a bypass flow control valvethat controls the amount of the refrigerant flowing through the bypass pipe; a heat exchangerthat allows heat exchange between the refrigerant that flows through the bypass pipeafter flowing out of the bypass flow control valveand the refrigerant that flows through the circulation pipe after flowing out of the condenser; and a subcooling degree sensor Tthat detects the subcooling degree of the refrigerant at the inlet of the flow control valve. At least either the flow control valveor the bypass flow control valveis controlled so that the subcooling degree of the refrigerant at the inlet of the flow control valveis equal to or greater than or a predetermined value.

Refrigeration cycle device and method of controlling the same

To eliminate influence of undesirable light component from an object when measuring optical characteristics such as shape and wavefront aberration of the object, light from light source () is separated by polarization beam splitter () into measuring light (L) that irradiates and travels via the object () and is condensed on image plane (P) through microlenses () of microlens array (), and reference light (L) that does not irradiate the object and is guided to the image plane by reference light optical system (). A computer () acquires picked-up images sequentially from CCD image sensor () arranged on the image plane while changing optical path length of the reference light by movable stage (), extracts interference light spots generated through interference between signal light component and the reference light from the picked-up images, calculates positions of the interference light spots, and calculates deviation amounts of positions from predetermined reference positions.

Measuring apparatus, measuring method, and method of manufacturing an optical component

The present invention provides a metal powder composed of tantalum or niobium that achieves both sinterability and fluidity and the manufacturing method thereof. The present invention also provides a tantalum or niobium powder that enables the manufacturing of an anode for a solid electrolytic capacitor in which holes are formed for a conductive polymer-containing solution to pass through, without using a hole molding material or pore forming material. Furthermore, the present invention provides an anode for a solid electrolytic capacitor that enables the manufacturing of a high-volume and low ESR solid electrolytic capacitor. The present invention further provides a manufacturing method of a metal powder that allows the manufacturing of a metal powder of a given diameter range from a raw powder at high yield, without requiring a lot of work and time.

Metal powder and manufacturing methods thereof

A process and system for producing tantalum or other valve metal particles is provided comprising forming tantalum particles in a reduction process carried out in a reactor vessel, and using a siphon to transfer fine tantalum particles out of the reaction mixture to a recovery vessel. This particle transfer can occur while the reaction mixture is agitated. The tantalum particles can be automatically withdrawn when the reaction mixture has a depth level greater than the fluid level of the tantalum fine particle recovery vessel, and outflow automatically stops when the fluid levels of the reactor and particle recovery vessel equilibrate. Tantalum or other valve metal powders made by the processes, and capacitors made with valve metal powders are also provided.

Fine particle recovery methods for valve metal powders

The present invention relates to an austenitic stainless steel tube for boiler, used for superheater or reheater in thermal power plant, giving excellent resistance to high temperature steam oxidation, in particular to an austenitic stainless steel tube containing 16 to 20% Cr by weight, and being cold-worked at the inner surface of the tube. The Cr concentration in the vicinity of the inner surface of the steel tube is 14% by weight or larger, and the hardness at 100 &#x3bc;m depth from the inner surface of the steel tube is 1.5 times or larger the average hardness of the mother material or is HV 300 or larger.

Austenitic stainless steel tube for boiler with excellent resistance to high temperature steam oxidation

Tantalum powder capable of providing a small-sized tantalum electrolytic capacitor while maintaining capacity is described. Tantalum powder in the present invention can be characterized in that the CV value is from 200,000 to 800,000 &#x3bc;FV/g, when measured by the following measuring method. Pellets are produced by forming tantalum powder such that the density is 4.5 g/cm, then the pellets are chemically converted in a phosphoric acid aqueous solution of concentration 0.1 vol. % at a voltage of 6V and a current of 90 mA/g, and the chemically converted pellets are used as measuring samples to measure the CV value in a sulfuric acid aqueous solution of concentration 30.5 vol. % at a temperature of 25&#xb0; C. under a frequency of 120 Hz and a voltage of 1.5V.

Tantalum powder and methods of manufacturing same

There is provided a shape measuring apparatus using an interferometer comprising a lens for condensing temporarily light waves from a light source, and a light wave shaping plate having a pinhole with suitable size adapted to convert the condensed light waves into an ideal spherical wave and a window provided in the vicinity of the pinhole and having enough size to pass therethrough light wave surface information, in which at least one lens having a reference surface and a surface to be measured the optical axes of which are slightly decentered in an optical path of the light waves passed through the pinhole is arranged in a position where the light waves which are made incident perpendicularly to the reference surface to be reflected therefrom pass through the pinhole again, and the light reflected from the surface to be measured pass through the window, and the reflected light reflected by the reference surface to pass through the pinhole again and the reflected light reflected by the surface to be measured to pass through the window are made to interfere with each other to measure a shape of the surface to be measured.

Method and apparatus for measuring the shape of an optical surface using an interferometer

A editing apparatus and an editing method that allow a source group name, a destination group name, the total number of files of each of the source group and the destination group, and the file insertion position of the destination group to be represented with an integrated icon in the case that a file categorized as a group and recorded in one of at least one record medium is moved to another group.

Editing apparatus and editing method

A refrigerant circulation system of the present invention includes a compressor, a condenser, a evaporator, a throttle device and a control unit. The control unit controls a composition of a refrigerant circulating in the refrigerant circulation system based on a temperature and pressure of the refrigerant of an inlet and outlet portion of the compressor, condenser, evaporator and throttle device. The control unit controls to open and close the throttle device to change the composition of the refrigerant circulating in the refrigerant circulation system.

Refrigerant circulating system

An accumulator is capable of preventing an excessive enlargement of the flow rate of a liquid refrigerant which is discharged from the accumulator, reducing the quantity of refrigerating machine oil which is accumulated in the accumulator, and maintaining a required quantity of refrigerating machine oil in a compressor. Liquid and a gas which circulate in a refrigerating and air-conditioning circuit are introduced into a first space by a suction pipe, and the gas refrigerant is discharged to a refrigerating and air-conditioning circuit through a gas passage pipe, a second space and a discharge pipe 5. A liquid-level maintaining mechanism prevents a rise in the height of the accumulated liquid introduced into the first space. When the height has been made to be not lower than a predetermined height, a gas communication mechanism moves liquid in the first space from the first space to the second space. A returning mechanism discharges refrigerating machine oil accumulated in the first space to the refrigerating and air-conditioning circuit.

Accumulator

In an accumulator constituting a refrigerating cycle apparatus, a high liquid-level auxiliary pipe (14a) and a low liquid-level auxiliary pipe (14b), which act as oil recovery pipes, and each of which is provided with a plurality of oil recovery holes (10a), are attached to a discharge pipe (12) in positions so as to be different vertically from each other, so that lubricating oil can be surely recovered through the oil recovery holes.

Accumlator

In an accumulator, an oil collecting pipe is held in a sealed vessel with the lower end thereof closed, the pipe has a plurality of oil collecting apertures spaced in a vertical direction and a communication port for communicating with a discharge pipe. The communication port is disposed in the vicinity of the lowermost oil collecting aperture or to the downstream side of the aperture. Therefore, excessive liquid refrigerant flow from the accumulator is prevented even if a large amount of the liquid refrigerant resides in the sealed vessel.

A heat exchanger mounted in an air condition is constructed such that at least one row of heat conduction pipe groups are arranged across an air passage. Each heat conduction pipe group is constructed such that a plurality of heat conduction pipes 22 are arranged in parallel with each other and a fine wire 23 made of a metallic material having excellent heat conductivity is spirally wound around each adjacent heat conduction pipe 22. Thus, the performance of the heat exchanger can be improved without the air conditioner being designed with larger dimensions. In addition, the heat exchanger includes a plurality of heat conduction pipes 39 arranged in the form of at least one row with a constant distance between adjacent pipes, and a plurality of twisted wires 40. The twisted wires 40 are arranged so as to alternately come in contact with one side and opposite side of each heat conduction pipe 39 extending at a right angle relative to the row direction of each heat conduction pipe 39, and moreover, alternately come in contact with one side and opposite other side of each heat conduction pipe 39 extending in the longitudinal direction. With this construction, high heat conductivity can be realized, and an occurrence of clogging with dew droplets can be prevented while maintaining a heat transfer surface area.

Air conditioner and heat exchanger used therefor

A heat exchanger mounted in an air conditioner is constructed such that at least one row of heat conduction pipe groups are arranged across an air passage. Each heat conduction pipe group is constructed such that a plurality of heat conduction pipes 22 are arranged in parallel with each other and a fine wire 23 made of a metallic material having excellent heat conductivity is spirally wound around each adjacent heat conduction pipe 22. Thus, performances of the heat exchanger can be improved without a possibility that the air conditioner is designed with larger dimensions. In addition, the heat exchanger includes a plurality of heat conduction pipes 39 arranged in the form of at least one row with a constant distance between adjacent ones and a plurality of twisted wires 40. The twisted wires 40 are arranged so as to alternately come in contact with one side and opposite side of each heat conduction pipe 39 extending at a right angle relative to the row direction of each heat conduction pipe 39, and moreover, alternately come in contact with one side and opposite other side of each heat conduction pipe 39 extending in the longitudinal direction. With this construction, high heat conductivity can be realized, and an occurrence of clogging with condensation can be prevented while improving heat conduction.

Growing community of inventors

Tokyo, Japan

Hitoshi Iijima