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).

  • Patent number: 7191610
    Abstract: 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: Grant
    Filed: April 8, 2004
    Date of Patent: March 20, 2007
    Assignee: Hitachi, Ltd.
    Inventors: Koichi Satoh, Seiji Yanagisawa, Shu Watabe, Yukihiro Fujita, Akio Shima, Yuji Tanaka, Shinichi Takahashi, Hiroshi Kunii
  • Patent number: 7174735
    Abstract: 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: Grant
    Filed: January 22, 2004
    Date of Patent: February 13, 2007
    Assignee: Hitachi, Ltd.
    Inventors: Kouichi Satoh, Seiji Yanagisawa, Shu Watabe, Yukihiro Fujita, Akio Shima, Yuji Tanaka, Shinichi Takahashi, Hiroshi Kunii
  • Patent number: 7081688
    Abstract: 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: Grant
    Filed: January 17, 2006
    Date of Patent: July 25, 2006
    Assignee: Hitachi, Ltd.
    Inventors: Kouichi Satou, Seiji Yanagisawa, Yuji Tanaka, Shinichi Takahashi, Yukihiro Fujita, Osamu Matsumoto, Toshihiko Yamamoto, Masahiro Sano
  • Publication number: 20060113797
    Abstract: 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: Application
    Filed: January 17, 2006
    Publication date: June 1, 2006
    Applicant: Hitachi, Ltd.
    Inventors: Kouichi Satou, Seiji Yanagisawa, Yuji Tanaka, Shinichi Takahashi, Yukihiro Fujita, Osamu Matsumoto, Toshihiko Yamamoto, Masahiro Sano
  • Patent number: 7019411
    Abstract: 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: Grant
    Filed: March 7, 2003
    Date of Patent: March 28, 2006
    Assignee: Hitachi, Ltd.
    Inventors: Kouichi Satou, Seiji Yanagisawa, Yuji Tanaka, Shinichi Takahashi, Yukihiro Fujita, Osamu Matsumoto, Toshihiko Yamamoto, Masahiro Sano
  • Publication number: 20040187497
    Abstract: 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: Application
    Filed: April 8, 2004
    Publication date: September 30, 2004
    Applicant: Hitachi, Ltd.
    Inventors: Kouichi Satoh, Seiji Yanagisawa, Shu Watabe, Yukihiro Fujita, Akio Shima, Yuji Tanaka, Shinichi Takahashi, Hiroshi Kunii
  • Publication number: 20040154325
    Abstract: 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: Application
    Filed: January 22, 2004
    Publication date: August 12, 2004
    Applicant: Hitachi, Ltd.
    Inventors: Kouichi Satoh, Seiji Yanagisawa, Shu Watabe, Yukihiro Fujita, Akio Shima, Yuji Tanaka, Shinichi Takahashi, Hiroshi Kunii
  • Patent number: 6698223
    Abstract: 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: Grant
    Filed: August 30, 2002
    Date of Patent: March 2, 2004
    Assignee: Hitachi, Ltd.
    Inventors: Kouichi Satoh, Seiji Yanagisawa, Shu Watabe, Yukihiro Fujita, Akio Shima, Yuji Tanaka, Shinichi Takahashi, Hiroshi Kunii
  • Publication number: 20030222457
    Abstract: 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: Application
    Filed: March 7, 2003
    Publication date: December 4, 2003
    Applicant: Hitachi, Ltd.
    Inventors: Kouichi Satou, Seiji Yanagisawa, Yuji Tanaka, Shinichi Takahashi, Yukihiro Fujita, Osamu Matsumoto, Toshihiko Yamamoto, Masahiro Sano
  • Publication number: 20030131621
    Abstract: 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: Application
    Filed: August 30, 2002
    Publication date: July 17, 2003
    Applicant: Hitachi, Ltd.
    Inventors: Kouichi Satoh, Seiji Yanagisawa, Shu Watabe, Yukihiro Fujita, Akio Shima, Yuji Tanaka, Shinichi Takahashi, Hiroshi Kunii
  • Patent number: 5238387
    Abstract: 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: Grant
    Filed: January 24, 1992
    Date of Patent: August 24, 1993
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Nozumu Hama, Takaaki Sato, Akihiko Koshiro, Masao Tegawa, Tomio Iino, Seiji Yanagisawa, Nobuo Kikuchi, Kazuo Migishima, Kazumi Ishida
  • Patent number: 5044919
    Abstract: 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: Grant
    Filed: December 5, 1989
    Date of Patent: September 3, 1991
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Nozomu Hama, Takaaki Sato, Akihiko Koshiro, Masao Tegawa, Tomio Iino, Seiji Yanagisawa, Nobuo Kikuchi, Kazuo Migishima, Kazumi Ishida