Patents by Inventor Seiji Yanagisawa
Seiji Yanagisawa has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 7191610Abstract: In the air-conditioning system, a primary side to generate heat includes a heat storage and a heat source and produces cool or warm water using an inexpensive commercial power source such as a nighttime power source. A system collaboration unit is disposed between a motor to drive a water pump and a power source. The unit is connected to the motor via a cable. An output from the inverter is connected to the motor via a cable.Type: GrantFiled: April 8, 2004Date of Patent: March 20, 2007Assignee: Hitachi, Ltd.Inventors: Koichi Satoh, Seiji Yanagisawa, Shu Watabe, Yukihiro Fujita, Akio Shima, Yuji Tanaka, Shinichi Takahashi, Hiroshi Kunii
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Patent number: 7174735Abstract: In the air-conditioning system, a primary side to generate heat includes a heat storage and a heat source and produces cool or warm water using an inexpensive commercial power source such as a nighttime power source. A system collaboration unit is disposed between a motor to drive a water pump and a power source. The unit is connected to the motor via a cable. An output from the inverter is connected to the motor via a cable.Type: GrantFiled: January 22, 2004Date of Patent: February 13, 2007Assignee: Hitachi, Ltd.Inventors: Kouichi Satoh, Seiji Yanagisawa, Shu Watabe, Yukihiro Fujita, Akio Shima, Yuji Tanaka, Shinichi Takahashi, Hiroshi Kunii
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Patent number: 7081688Abstract: A system is provided to recover unutilized energy as electric power in hydraulic turbine power generation. The system includes a heat storage tank, a pump for pumping water from the heat storage tank and to air conditioning loads, a first water feed pipe connected between an outlet of the storage pump and the air conditioning loads, and a second water feed pipe for returning the water discharged from the air-conditioning loads. A hydraulic turbine driven generator is provided on a lower portion of the second water feed pipe at such a position as to recover the potential energy of the water discharged from the air conditioning loads.Type: GrantFiled: January 17, 2006Date of Patent: July 25, 2006Assignee: Hitachi, Ltd.Inventors: Kouichi Satou, Seiji Yanagisawa, Yuji Tanaka, Shinichi Takahashi, Yukihiro Fujita, Osamu Matsumoto, Toshihiko Yamamoto, Masahiro Sano
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Publication number: 20060113797Abstract: A system is provided to recover unutilized energy as electric power in hydraulic turbine power generation. The system includes a heat storage tank, a pump for pumping water from the heat storage tank and to air conditioning loads, a first water feed pipe connected between an outlet of the storage pump and the air conditioning loads, and a second water feed pipe for returning the water discharged from the air-conditioning loads. A hydraulic turbine driven generator is provided on a lower portion of the second water feed pipe at such a position as to recover the potential energy of the water discharged from the air conditioning loads.Type: ApplicationFiled: January 17, 2006Publication date: June 1, 2006Applicant: Hitachi, Ltd.Inventors: Kouichi Satou, Seiji Yanagisawa, Yuji Tanaka, Shinichi Takahashi, Yukihiro Fujita, Osamu Matsumoto, Toshihiko Yamamoto, Masahiro Sano
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Patent number: 7019411Abstract: A system is provided to recover unutilized energy as electric power in hydraulic turbine power generation. The system includes a heat storage tank, a pump for pumping water from the heat storage tank and to air conditioning loads, a first water feed pipe connected between an outlet of the storage pump and the air conditioning loads, and a second water feed pipe for returning the water discharged from the air-conditioning loads. A hydraulic turbine driven generator is provided on a lower portion of the second water feed pipe at such a position as to recover the potential energy of the water discharged from the air conditioning loads.Type: GrantFiled: March 7, 2003Date of Patent: March 28, 2006Assignee: Hitachi, Ltd.Inventors: Kouichi Satou, Seiji Yanagisawa, Yuji Tanaka, Shinichi Takahashi, Yukihiro Fujita, Osamu Matsumoto, Toshihiko Yamamoto, Masahiro Sano
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Publication number: 20040187497Abstract: In the air-conditioning system, a primary side to generate heat includes a heat storage and a heat source and produces cool or warm water using an inexpensive commercial power source such as a nighttime power source. A system collaboration unit is disposed between a motor to drive a water pump and a power source. The unit is connected to the motor via a cable. An output from the inverter is connected to the motor via a cable.Type: ApplicationFiled: April 8, 2004Publication date: September 30, 2004Applicant: Hitachi, Ltd.Inventors: Kouichi Satoh, Seiji Yanagisawa, Shu Watabe, Yukihiro Fujita, Akio Shima, Yuji Tanaka, Shinichi Takahashi, Hiroshi Kunii
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Publication number: 20040154325Abstract: In the air-conditioning system, a primary side to generate heat includes a heat storage and a heat source and produces cool or warm water using an inexpensive commercial power source such as a nighttime power source. A system collaboration unit is disposed between a motor to drive a water pump and a power source. The unit is connected to the motor via a cable. An output from the inverter is connected to the motor via a cable.Type: ApplicationFiled: January 22, 2004Publication date: August 12, 2004Applicant: Hitachi, Ltd.Inventors: Kouichi Satoh, Seiji Yanagisawa, Shu Watabe, Yukihiro Fujita, Akio Shima, Yuji Tanaka, Shinichi Takahashi, Hiroshi Kunii
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Patent number: 6698223Abstract: In the air-conditioning system, a primary side to generate heat includes a heat storage and a heat source and produces cool or warm water using an inexpensive commercial power source such as a nighttime power source. A system collaboration unit is disposed between a motor to drive a water pump and a power source. The unit is connected to the motor via a cable. An output from the inverter is connected to the motor via a cable.Type: GrantFiled: August 30, 2002Date of Patent: March 2, 2004Assignee: Hitachi, Ltd.Inventors: Kouichi Satoh, Seiji Yanagisawa, Shu Watabe, Yukihiro Fujita, Akio Shima, Yuji Tanaka, Shinichi Takahashi, Hiroshi Kunii
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Publication number: 20030222457Abstract: It is provided an object of the invention to recover unutilized energy as electric power by the hydraulic turbine power generation so as to reuse it.Type: ApplicationFiled: March 7, 2003Publication date: December 4, 2003Applicant: Hitachi, Ltd.Inventors: Kouichi Satou, Seiji Yanagisawa, Yuji Tanaka, Shinichi Takahashi, Yukihiro Fujita, Osamu Matsumoto, Toshihiko Yamamoto, Masahiro Sano
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Publication number: 20030131621Abstract: In the air-conditioning system, a primary side to generate heat includes a heat storage and a heat source and produces cool or warm water using an inexpensive commercial power source such as a nighttime power source. A system collaboration unit is disposed between a motor to drive a water pump and a power source. The unit is connected to the motor via a cable. An output from the inverter is connected to the motor via a cable.Type: ApplicationFiled: August 30, 2002Publication date: July 17, 2003Applicant: Hitachi, Ltd.Inventors: Kouichi Satoh, Seiji Yanagisawa, Shu Watabe, Yukihiro Fujita, Akio Shima, Yuji Tanaka, Shinichi Takahashi, Hiroshi Kunii
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Patent number: 5238387Abstract: An apparatus for molding a product of synthetic resin which includes a mold assembly having a die plate and first and second mold dies which define a mold cavity therebetween. The first mold die includes a fixed member fixed to the die plate. At least two movable members are respectively displaceable in perpendicular directions away from each other. Each of the movable members are mounted on the die plate and are further displaced from the fixed member to open the first mold die. A resilient member is provided for perpendicular contacting the movable members and urging the movable members toward the fixed member to assembly the first mold die together.Type: GrantFiled: January 24, 1992Date of Patent: August 24, 1993Assignee: Honda Giken Kogyo Kabushiki KaishaInventors: Nozumu Hama, Takaaki Sato, Akihiko Koshiro, Masao Tegawa, Tomio Iino, Seiji Yanagisawa, Nobuo Kikuchi, Kazuo Migishima, Kazumi Ishida
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Patent number: 5044919Abstract: An apparatus for molding a product such as an automotive instrument panel of synthetic resin has a first station including a mechanism for opening and closing a mold assembly, a second station including a mechanism for pouring a resin solution into the mold assembly which is closed, and a third station for hardening the poured resin solution in the mold assembly. A feed mechanism interconnects the first, second, and third stations in a looped configuration for circulating at least three mold assemblies through the first, second, and third stations. The mold assembly includes a first mold die for placing therein a covering sheet of a predetermined shape, a second mold die combinable with the first mold die to define a mold cavity therebetween, and a mechanism for pouring a resin foam solution into the mold cavity to form a molding integral with the covering sheet.Type: GrantFiled: December 5, 1989Date of Patent: September 3, 1991Assignee: Honda Giken Kogyo Kabushiki KaishaInventors: Nozomu Hama, Takaaki Sato, Akihiko Koshiro, Masao Tegawa, Tomio Iino, Seiji Yanagisawa, Nobuo Kikuchi, Kazuo Migishima, Kazumi Ishida