Konishiroku Photo Industry Co., Ltd.

The Japan Steel Works, Ltd.

Other

Kabushiki Kaisha Toshiba

Hitachi, Ltd.

Mitsubishi Electric Corporation

Toray Industries, Inc.

Konica Corporation

Mistubishi Electric Corporation

The Japane Steel Works, Ltd.

Yasuhiko Tanaka

Yoshiaki Kimura

Tsukasa Azuma

Yoru Wada

Ryoji Ishigaki

Tomoo Takenouchi

Junji Itagaki

Yoshiaki Ichinomiya

Shuzo Ohhashi

Junji Ishizaka

Yutaka Fukui

Toshio Fujita

Taketo Nozu

Kouichi Takasawa

Satoshi Haneda

Masayuki Yamada

Masakazu Fukuchi

Shizuo Morita

Yasuo Watanabe

Kunihiro Koshizuka

Masao Asano

Hiroyuki Doi

Kishio Hidaka

Tadashi Miwa

Masahiko Arai

Shigeyoshi Nakamura

Tatsuichi Maehashi

Ryo Hiraga

Ryoichi Kaneko

Jun Utsumi

Masao Shiga

Ken Nakamura

Yoichi Tsuda

Toshinori Yamazaki

Kiyoaki Kawamoto

Toshiaki Tezuka

Norio Yamada

Hisao Fujita

Nobuo Shimizu

Kiyotaka Murakami

Tetsuko Omoto

Atsuhiro Yabuta

Masato Ueda

Tetsuo Sudo

Masato Watanabe

Koichi Takasawa

Norio Morisada

Mizuo Matsui

Isao Kobayashi

Yasumi Ikeda

Yasuhiro Harada

Kenichiro Nomura

An air-conditioning system includes a plurality of air-conditioning apparatuses each including an outdoor unit, an indoor unit, and a remote controller and a transmission line via which the plurality of air-conditioning apparatuses are connected to each other. Each of the outdoor units includes a communication unit configured to transmit and receive a signal and a repeater configured to relay a signal of a set frequency. In a case where a set frequency with which the repeater of one air-conditioning apparatus of the plurality of air-conditioning apparatuses is compatible and a set frequency with which the repeater of the other air-conditioning apparatus of the plurality of air-conditioning apparatuses is compatible match, the remote controller of the one air-conditioning apparatus and the indoor unit of the other air-conditioning apparatus is configured to perform communication by use of a signal of the set frequency thus matching.

Air-conditioning system

An object of the present invention is to provide at a low cost a low-alloy steel having a high strength and excellent high-pressure hydrogen environment embrittlement resistance characteristics under a high-pressure hydrogen environment. The invention is a high-strength low-alloy steel having high-pressure hydrogen environment embrittlement resistance characteristics, which has a composition comprising C: 0.10 to 0.20% by mass, Si: 0.10 to 0.40% by mass, Mn: 0.50 to 1.20% by mass, Ni: 0.75 to 1.75% by mass, Cr: 0.20 to 0.80% by mass, Cu: 0.10 to 0.50% by mass, Mo: 0.10 to 1.00% by mass, V: 0.01 to 0.10% by mass, B: 0.0005 to 0.005% by mass and N: 0.01% by mass or less, and further comprising one or two of Nb: 0.01 to 0.10% by mass and Ti: 0.005 to 0.050% by mass, with the balance consisting of Fe and unavoidable impurities.

High-strength low-alloy steel excellent in high-pressure hydrogen environment embrittlement resistance characteristics and method for producing the same

An air-conditioning system includes a general-purpose device controller which controls a general-purpose device and an air-conditioning facility. The general-purpose device controller includes a processing configuration unit which receives a first signal corresponding to the air-conditioning facility and a second signal corresponding to the general-purpose device and transmits a control signal which controls the air-conditioning facility and the general-purpose device based on the first signal and the second signal. The processing configuration unit is configured to designate the air-conditioning facility which is a first control target, with a management address which is included in the first signal and designate the air-conditioning facility, designate the general-purpose device which is a second control target, with an input/output port number which is included in the second signal and designate the general-purpose device, and transmit the control signal which performs ganged control of the first control target and the second control target.

An object of the present invention is to provide at a low cost a low-alloy steel having a high strength and excellent high-pressure hydrogen environment embrittlement resistance characteristics under a high-pressure hydrogen environment. The invention is a high-strength low-alloy steel excellent in high-pressure hydrogen environment embrittlement resistance characteristics, which is characterized in that the steel has a composition comprising C: 0.10 to 0.20%, Si: 0.10 to 0.40%, Mn: 0.50 to 1.20%, Cr: 0.20 to 0.80%, Cu: 0.10 to 0.50%, Mo: 0.10 to 1.00%, V: 0.01 to 0.10%, B: 0.0005 to 0.005% and N: 0.01% or less, by mass, with the balance consisting of Fe and unavoidable impurities.

A method of determining fatigue of a pressure-resistant component for high-pressure hydrogen made of a ferritic steel and provided in a high-pressure hydrogen gas environment is provided wherein when the material of the ferritic steel in the air has an ultimate tensile strength Su in the range of 958-1,144 MPa and the hydrogen gas environment has a pressure in a range to 45 MPa, then a fatigue strength in a gaseous hydrogen S(MPa) for the pressure-resistant component provided in the high-pressure hydrogen gas environment is obtained by using equation (1): S(MPa)=2,577&#x2212;1.8925&#xd7;Su (MPa). The influence of a high-pressure hydrogen gas environment on the pressure-resistant component for high-pressure hydrogen is determined based on the fatigue strength obtained by using the equation (1).

Method of determining fatigue of pressure-resistant component for high-pressure hydrogen

Steam turbine rotor shaft

Method for treating ophthalmic diseases

A heat resisting steel whose metal structure is entirely martensite phase produced by tempering after quenching. The steel comprises, by weight, 0.05 to 0.20% C, not more than 0.15% Si, not more than 1.5% Mn, not more than 1.0% Ni, 8.5 to 13.0% Cr, not more than 3.50% Mo, not more than 3.5% W, 0.05 to 0.30% V, 0.01 to 0.20% Nb, not more than 5.0% Co, 0.001 to 0.020% boron, 0.005 to 0.040% nitrogen, 0.0005 to 0.0050% oxygen and 0.00001 to 0.0002% hydrogen. The steel has preferably not more than 10 of the Cr equivalent. The steel has 10 kgf/mm.sup.2 or more of 100,000 hours creep rupture strength at 650.degree. C.

Heat resisting steel and steam turbine rotor shaft and method of making

A rotor forging composed of Cr--Mo--V type alloy based on iron is normalizing-treated at a temperature of from 1000 to 1150.degree. C., the temperature is maintained at 650.degree.-750.degree. C. on the way of cooling the temperature from the normalizing-treating temperature to pearlite transform the microstructure of the rotor forging, the portions of the rotor forging corresponding to a high pressure or middle pressure portion are quenched at 940.degree.-1020.degree. C. and the portion corresponding to the low pressure portion is quenched at 850.degree.-940.degree. C. after the heat treatment is carried out at 920.degree.-950.degree. C. once or more times, and the rotor forging is subjected to tempering at 550.degree.-700.degree. C. once or more times. A high creep strength at the high and middle pressure portions can be obtained and, at the same time, the toughness at the low pressure portion is drastically enhanced.

Process for producing high-and low-pressure integral-type turbine rotor

An object of the invention is to provide an ingot having improvement of and a prevention of occurrence of segregation when electroslag remelting method is used for producing a large size ingot and a super alloy which is sensitive to segregation. According to the present invention, the electrode for electroslag remelting method has a hole formed along an axial direction in the core of an electrode. Therefore, the molten pool is made shallow so that flat and segregation is prevented from occurring. Consequently, an ESR ingot of good quality is accomplished with an excellent surface and is free from segregation. Moreover, an electrode melting rate is increasing and efficiency is improved.

Electrode for electroslag remelting and process of producing alloy using

A process for producing a turbine rotor using an ingot in which segregation is prevented effectively when ESR is used to produce a large-sized ingot. A hole is formed along an axial direction in the core of an electrode. The molten pool is made shallow and flat and segregation is prevented from occurring. Consequently, an ESR ingot of good quality offering an excellent surface is obtainable as it is free from segregation. Moreover, an electrode melting rate is increased and efficiency is improved so that a high quality turbine can be manufactured from the ingot.

An object of the present invention is to provide an ingot wherein occurrence is prevented when an electroslag remelting method is used for producing a large ingot and which a super alloy is sensitive to segragation. According to the present invention, the electrode for electroslag remelting method has a hole formed along an axial direction in the core of an electrode. Therefore, the molten pool is made shallow so that flat and segregation is prevented from occurring. Consequently, an ESR ingot of good quality is accomplished with an excellent surface and is free from segregation. Moreover, an electrode melting rate is increasing and efficiency is improved.

In a toner image fixing device, there are provided an endless belt being looped up around a heating roller and a conveyance roller, a pressure roller for pressing a sheet having a toner image onto the heating roller with the endless belt intervening between the pressure roller and the heating roller. A sensor is disposed inside the loop of the belt so as to come in contact with the heating roller, for detecting the temperature of the heating roller. The fixing temperature for the toner image is controlled on the basis of the temperature of the heating roller detected by the sensor. A first nip region is formed on a pressing portion located between the heating roller and the fixing roller. A second nip region is formed between the belt and the fixing roller, continuing from the first nip region but without contacting the heating roller.

Fixing apparatus having two nip regions

Disclosed is a resin composition for heat-sensitive transfer recording medium, comprising (A) a silicone resin and (B) at least one resin selected from the group consisting of polyester resins, polyamide resins, cellulose type resins and acrylic resins. Disclosed is also a heat-sensitive transfer recording medium having at least one colorant layer containing a heat-fusible substance on a support, comprising a backing layer formed from (A) a silicone resin and (B) at least one resin selected from the group consisting of polyester resins, polyamide resins, cellulose type resins and acrylic resins provided on the surface of the support where no colorant layer is provided. The resin composition for heat-sensitive transfer recording medium of the present invention has sufficient heat resistance. Also, the heat-sensitive transfer recording medium utilizing the resin composition for heat-sensitive transfer recording medium as a backing layer is free from generation of blocking phenomenon between the backing layer and a colorant layer even when stored for a long term under wound state, contamination of thermal head, generation of sticking phenomenon, transfer irregularity of a colorant layer and printed image defect.

Resin composition for heat-sensitive transfer recording medium and

Growing community of inventors

Tokyo, Japan

Yasuhiko Tanaka