Patents Assigned to Showa Tansan Co., Ltd.
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Publication number: 20110218096Abstract: A spray can product capable of preventing leakage where used or stored in a tilted or an inverted position, and keeping good safety and liquid retention even where a flammable liquefied gas is used. The spray can product is formed by filling a spray can having an ejection opening with a liquefied gas and an absorbing body for retaining liquid, and the absorbing body is composed of an assembly of cellulose fibers containing at least 45 mass % of fine cellulose fibers having a fiber length of 0.35 mm or less. The absorbing body compressed into a block-shaped configuration corresponding to that of the spray can is accommodated within the spray can while defining a space on the side of an ejection opening, and a lid-like member is provided between the space and the absorbing body to protect a surface of the absorbing body in a gas permeable manner.Type: ApplicationFiled: November 2, 2009Publication date: September 8, 2011Applicants: NKK CO., LTD., SHOWA TANSAN CO., LTD., Japan Petroleum Exploration Co., Ltd.Inventors: Toshifumi Hatanaka, Masaki Okada, Kiyotaka Miyata, Teruo Miura
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Patent number: 7976721Abstract: To provide a safe, nontoxic, and high-performance mixed refrigerant for hot water supply/heating system which is prepared by mixing dimethyl ether with carbon dioxide and which does not deplete the ozone layer, has a low global warming potential, and permits low-pressure operation. A refrigerant composition for hot water supply/heating comprising 1 to 10% by mole of dimethyl ether and 99 to 90% by mole of carbon dioxide on the basis of the total number of moles of dimethyl ether and carbon dioxide.Type: GrantFiled: September 7, 2010Date of Patent: July 12, 2011Assignees: Japan Petroleum Exploration Co., Ltd., Showa Tansan Co., Ltd., Toyota Tsusho CorporationInventors: Seijyuro Maiya, Osamu Nakagome, Hideyuki Suzuki, Yasuhisa Kotani, Toshifumi Hatanaka, Toshihiro Wada
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Publication number: 20110017941Abstract: The present invention is directed to using a composition comprising carbon dioxide and dimethyl ether as a refrigerant. In particular, the refrigerant composition comprises 3-6% by mole dimethyl ether and 97-94% by mole of carbon dioxide on the basis of a total number of moles of dimethyl ether and carbon dioxide. Advantageously, the refrigerant composition does not cause ozonosphere depletion, has a low global warming potential, and is safe and nontoxic.Type: ApplicationFiled: September 9, 2010Publication date: January 27, 2011Applicants: JAPAN PETROLEUM EXPLORATION CO., LTD., SHOWA TANSAN CO., LTD., TOYOTA TSUSHO CORPORATIONInventors: Seijyuro Maiya, Osamu Nakagome, Hideyuki Suzuki, Yasuhisa Kotani, Toshifumi Hatanaka, Toshihiro Wada
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Publication number: 20110017940Abstract: [Problems] To provide a safe, nontoxic, and high-performance mixed refrigerant for hot water supply/heating system which is prepared by mixing dimethyl ether with carbon dioxide and which does not deplete the ozone layer, has a low global warming potential, and permits low-pressure operation. [Means for Solving Problems] A refrigerant composition for hot water supply/heating comprising 1 to 10% by mole of dimethyl ether and 99 to 90% by mole of carbon dioxide on the basis of the total number of moles of dimethyl ether and carbon dioxide.Type: ApplicationFiled: September 7, 2010Publication date: January 27, 2011Applicants: JAPAN PETROLEUM EXPLORATION CO., LTD., SHOWA TANSAN CO., LTD., TOYOTA TSUSHO CORPORATIONInventors: Seijyuro Maiya, Osamu Nakagome, Hideyuki Suzuki, Yasuhisa Kotani, Toshifumi Hatanaka, Toshihiro Wada
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Publication number: 20100282621Abstract: A high-quality spray product that uses a less expensive propellant exhibiting a lower ozone-depleting potential and a lower global warming potential without using any fluorocarbon, any alternative thereto, etc., and exhibits an improved safety and an improved liquid retention. A dust blower as the spray product uses a propellant composed of a mixture of dimethyl ether and carbon dioxide, and an absorbent adapted to retain the propellant, which is composed of an assembly of pulverized cellulose fibers such that the cellulose fibers include at least 45 mass % of fine cellulose fibers having a fiber length of 0.35 mm or less. The propellant and the absorbent are charged in a spray can having a spray nozzle, thereby preparing a dust blower.Type: ApplicationFiled: February 29, 2008Publication date: November 11, 2010Applicants: NKK CO., LTD., SHOWA TANSAN CO., LTD., Japan Petroleum Exploration Co., Ltd.Inventors: Toshifumi Hatanaka, Masaki Okada, Kiyotaka Miyata, Teruo Miura
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Publication number: 20090277198Abstract: A Rankine cycle system has a condenser, a refrigerant circulating pump connected to the condenser, a heat collecting device connected to the refrigerant circulating pump, and an expansion turbine connected to the heat collecting device and the condenser. The refrigerant circulating pump includes an expansion tank or pressure vessel, a refrigerant supply conduit connected to the lower part of the expansion tank and to the condenser, and a refrigerant discharge conduit connected to the upper part of the expansion tank. An open/close valve is installed in the refrigerant supply conduit. A pressure regulating valve installed in the refrigerant discharge pipe opens when a pressure reaches a specified value or higher. A temperature regulating device can heat the refrigerant in the expansion tank to produce a refrigerant vapor of saturated temperature or higher, which vapor can be introduced into the heat collecting device.Type: ApplicationFiled: April 28, 2009Publication date: November 12, 2009Applicants: THE DOSHISHA, MAYEKAWA MFG., CO., LTD., SHOWA DENKO K.K., SHOWA TANSAN CO., LTD., YOSHIMURA CONSTRUCTION CO., LTD.Inventors: Hiroshi YAMAGUCHI, Katsumi FUJIMA, Masatoshi ENOMOTO, Noboru SAWADA
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Publication number: 20090260373Abstract: [Problems] To provide a refrigerant which is obtained by mixing a refrigerant, dimethyl ether, and carbon dioxide and which has such excellent performances that it does not cause ozonosphere depletion, has extremely low global warming potential, and is safe and nontoxic. [Means for solving problems] The refrigerant composition for refrigerating machines contains 1-10 mol % dimethyl ether and 99-90 mol % carbon dioxide.Type: ApplicationFiled: August 16, 2006Publication date: October 22, 2009Applicants: JAPAN PETROLEUM EXPLORATION CO., LTD., SHOWA TANSAN CO., LTD., TOYOTA TSUSHO CORPORATIONInventors: Seijyuro Maiya, Osamu Nakagome, Hideyuki Suzuki, Yasuhisa Kotani, Toshifumi Hatanaka, Toshihiro Wada
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Patent number: 7530235Abstract: A Rankine cycle system has a condenser, a heat pump connected to the condenser, a heat collecting device connected to the heat pump, and an expansion turbine connected to the heat collecting device and the condenser. The heat pump includes an expansion tank or closed vessel, a refrigerant supply conduit connected to the lower part of the expansion tank and to the condenser, and a refrigerant discharge conduit connected to the upper part of the expansion tank. An open/close valve is installed in the refrigerant supply conduit. A pressure regulating valve installed in the refrigerant discharge pipe opens when a pressure reaches a specified value or higher. A temperature regulating device can heat the refrigerant in the expansion tank to produce a refrigerant vapor of saturated temperature or higher, which vapor can be introduced into the heat collecting device.Type: GrantFiled: March 15, 2007Date of Patent: May 12, 2009Assignees: The Doshisha, Mayekawa Mfg. Co. Ltd., Showa Denko K.K., Showa Tansan Co., Ltd., Yoshimura Construction Co., Ltd.Inventors: Hiroshi Yamaguchi, Katsumi Fujima, Masatoshi Enomoto, Noboru Sawada
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Publication number: 20070267597Abstract: Disclosed is a safe, non-toxic refrigerant mixture for heating/hot water supply obtained by mixing dimethyl ether and carbon dioxide which operates at low pressures while exhibiting excellent performance. This refrigerant mixture does not deplete the ozone layer, and has a low global warming potential. Specifically disclosed is a composition containing 10-80% by mole of dimethyl ether and 90-20% by mole of carbon dioxide based on the total mole number of dimethyl ether and carbon dioxide.Type: ApplicationFiled: June 1, 2005Publication date: November 22, 2007Applicants: JAPAN PETROLEUM EXPLORATION CO., LTD., SHOWA TANSAN CO., LTD., NKK CO., LTD.Inventors: Seijyuro Maiya, Osamu Nakagome, Hideyuki Suzuki, Yasuhisa Kotani, Toshifumi Hatanaka, Toshihiro Wada
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Publication number: 20070199323Abstract: A Rankine cycle system has a condenser, a heat pump connected to the condenser, a heat collecting device connected to the heat pump, and an expansion turbine connected to the heat collecting device and the condenser. The heat pump includes an expansion tank or closed vessel, a refrigerant supply conduit connected to the lower part of the expansion tank and to the condenser, and a refrigerant discharge conduit connected to the upper part of the expansion tank. An open/close valve is installed in the refrigerant supply conduit. A pressure regulating valve installed in the refrigerant discharge pipe opens when a pressure reaches a specified value or higher. A temperature regulating device can heat the refrigerant in the expansion tank to produce a refrigerant vapor of saturated temperature or higher, which vapor can be introduced into the heat collecting device.Type: ApplicationFiled: March 15, 2007Publication date: August 30, 2007Applicants: THE DOSHISHA, MAYEKAWA MFG. CO., LTD., SHOWA DENKO K. K., SHOWA TANSAN CO., LTD., YOSHIMURA CONSTRUCTION CO., LTD.Inventors: Hiroshi YAMAGUCHI, Katsumi FUJIMA, Masatoshi ENOMOTO, Noboru SAWADA
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Patent number: 6622462Abstract: The air remaining within a headspace of a can filled with a liquid such as a carbonated drink, juice drink, tea drink, coffee drink or the like is replaced with one of steam, a mixture of steam and carbonic acid gas, a mixture of steam and nitrogen gas, and a mixture of carbonic acid gas and nitrogen gas. Therefore, the quality of filled liquid can be maintained, and deterioration of the working environment can be prevented by avoiding the spraying of carbonic acid in all directions at the workshop.Type: GrantFiled: January 24, 2000Date of Patent: September 23, 2003Assignee: Showa Tansan Co., Ltd.Inventors: Norimitsu Wakabayashi, Youichi Hayatsu
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Patent number: 6588327Abstract: An energy and water saving pasteuriser capable of maintaining a stable temperature distribution pattern even when transfer work are interrupted during the operation, or a tunnel type refrigerator (10) allowing hot work such as bottles and cans filled with the products sterilized at a high temperature of generally 75° C. to allow temperature of generally 25° C., wherein plural cooling vessels (11a, 12a, 12b, 12c, 12d, 13a, 13b) are disposed in a row from the upstream side to the downstream side so as to form a first cooling region (11), an intermediate cooling region (12), and a final cooling region (13), an adsorption freezing machine (19) is installed between the first cooling region (11) and final cooling region (13), and a cooling tower (20) is installed in the intermediate cooling region (12).Type: GrantFiled: June 25, 2002Date of Patent: July 8, 2003Assignees: Showa Tansan Co., Ltd., Mayekawa Mfg. Co., Ltd.Inventors: Norimitsu Wakabayashi, Ryosuke Aika, Yoshifumi Kawabata, Fujio Komatsu, Masami Kohama
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Patent number: 6161557Abstract: The rinse washing of the present invention is completed in a short time by washing with a rinse washing liquid including a safe carbonic water or a carbonic acid gas after the manufacturing line is washed by an alkaline washing liquid when the manufacturing line is washed so that the present invention can reduce the water and energetic waste and can drive the manufacturing line efficiently.Type: GrantFiled: December 22, 1998Date of Patent: December 19, 2000Assignee: Showa Tansan Co., Ltd.Inventor: Norimitsu Wakabayashi
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Patent number: 5465754Abstract: The main valve slides in the direction for its opening when the plunger is pushed in. This causes the nozzle hole and the main valve's operating bore to be communicated, which then causes the compressed gas in a pressure vessel to open the follower valve's check valve thus discharging the gas to the outside of the pressure vessel through the follower valve's communicating bore. When the pressure at the discharge side exceeds the pressure of the pressure vessel during such discharge, a back-flow pressure causes the follower valve to slide, thus closing the follower valve's operating bore and the communicating bore with the check valve. This closes the gas's passage and prevents its back-flow into the pressure vessel. When charging a high-pressure gas, any moisture which has penetrated into the nozzle hole and/or the main valve's operating bore can be blown off by discharging residual pressure in the pressure vessel.Type: GrantFiled: November 7, 1994Date of Patent: November 14, 1995Assignees: Showa Tansan Co., Ltd., Daito Valve Seisakusho Co., Ltd.Inventors: Kiyoshi Sudo, Masakazu Ookubo
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Patent number: 5029419Abstract: A soft synthetic resin, such as polyurethane, body is molded onto a metallic steering wheel frame except for a part thereof intended for installation of the steering wheel onto a column shaft and a soft burr formed on the resultant covered steering wheel along the parting line of the mold is removed by refrigerating the steering wheel to make the burr hard and fragile and then removing the burr by shot blast treatment, whereafter the steering wheel is heat dried to eliminate water from the atmosphere condensing on the exposed metallic installation part of the steering wheel and prevent resulting corrosion of that part.Type: GrantFiled: March 2, 1990Date of Patent: July 9, 1991Assignees: Nippon Sangyo Kikai Hanbai Co., Ltd., Showa Tansan Co., Ltd.Inventors: Akinori Nakayama, Mitsuya Kurachi, Kiyoshi Sudo, Toshiharu Kamijo