Patents by Inventor Masamitsu Murai

Masamitsu Murai 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).

  • Hydrogen storage and release apparatus
    Patent number: 6616738
    Abstract: A hydrogen storage and release apparatus is provided with a heat exchanging portion provided with hydrogen storage alloy containers, a heat exchanger body in which the heat exchanging portion is received so that a heat gas or coolant is introduced and discharged, and a hydrogen-travelling passage connected to the containers so that hydrogen can move to the containers. The heat exchanging portion is provided so that the heat exchanging efficiency on the heat gas discharge side of the heat exchanging portion is made higher than that on the heat gas introduction side thereof.
    Type: Grant
    Filed: June 8, 2001
    Date of Patent: September 9, 2003
    Assignee: The Japan Steel Works, Ltd.
    Inventors: Takashi Iwamoto, Masamitsu Murai, Yutaka Shimizu, Kazuo Noie
  • Low-temperature waste-heat-gas driven refrigeration system
    Patent number: 6520249
    Abstract: High-temperature-side hydrogen storage alloy containers each containing a hydrogen storage alloy are disposed as a heat exchanging portion in high-temperature-side heat exchangers. Low-temperature waste-heat gas generated in a micro gas turbine is imported into the heat exchangers so that direct heat exchange is performed between the waste-heat gas and each of the alloy containers. On the other hand, low-temperature-side hydrogen storage alloy containers each containing a hydrogen storage alloy are disposed as a heat exchanging portion in low-temperature-side heat exchangers. The high-temperature-side alloy containers and the low-temperature-side alloy containers are connected to each other by hydrogen-travelling pipes. Cold heat generated in the low-temperature-side heat exchangers is supplied to a refrigeration output portion.
    Type: Grant
    Filed: June 8, 2001
    Date of Patent: February 18, 2003
    Assignee: The Japan Steel Works, Ltd.
    Inventors: Takashi Iwamoto, Hiroyuki Togo, Masamitsu Murai, Ritsu Miura, Koji Hattori, Harunobu Takeda
  • Cogeneration system using waste-heat gas generated in micro gas turbine
    Patent number: 6519946
    Abstract: A waste-heat gas driven cogeneration having a micro gas turbine, driving portions including high-temperature-side hydrogen storage alloy containers respectively and operated by heat exchange between waste-heat gas generated from the turbine and a cooling heat medium, and cold-heat generating portions including low-temperature-side hydrogen storage alloy containers respectively to absorb and release hydrogen into/from the containers to generate cold heat and supply the cold heat.
    Type: Grant
    Filed: June 6, 2001
    Date of Patent: February 18, 2003
    Assignee: The Japan Steel Works, Ltd.
    Inventors: Takashi Iwamoto, Hiroyuki Togo, Masamitsu Murai, Ritsu Miura, Koji Hattori, Harunobu Takeda
  • Hydrogen storage and release apparatus
    Publication number: 20020020299
    Abstract: A hydrogen storage and release apparatus is provided with a heat exchanging portion provided with hydrogen storage alloy containers, a heat exchanger body in which the heat exchanging portion is received so that a heat gas or coolant is introduced and discharged, and a hydrogen-travelling passage connected to the containers so that hydrogen can move to the containers. The heat exchanging portion is provided so that the heat exchanging efficiency on the heat gas discharge side of the heat exchanging portion is made higher than that on the heat gas introduction side thereof.
    Type: Application
    Filed: June 8, 2001
    Publication date: February 21, 2002
    Applicant: JAPAN STEEL WORKS, LTD.
    Inventors: Takashi Iwamoto, Masamitsu Murai, Yutaka Shimizu, Kazuo Noie
  • Cogeneration system using waste-heat gas generated in micro gas turbine
    Publication number: 20010049933
    Abstract: A waste-heat gas driven cogeneration having a micro gas turbine, driving portions including high-temperature-side hydrogen storage alloy containers respectively and operated by heat exchange between waste-heat gas generated from the turbine and a cooling heat medium, and cold-heat generating portions including low-temperature-side hydrogen storage alloy containers respectively to absorb and release hydrogen into/from the containers to generate cold heat and supply the cold heat.
    Type: Application
    Filed: June 6, 2001
    Publication date: December 13, 2001
    Applicant: THE JAPAN STEEL WORKS, LTD.
    Inventors: Takashi Iwamoto, Hiroyuki Togo, Masamitsu Murai, Ritsu Miura, Koji Hattori, Harunobu Takeda
  • Low-temperature waste-heat-gas driven refrigeration system
    Publication number: 20010050163
    Abstract: High-temperature-side hydrogen storage alloy containers each containing a hydrogen storage alloy are disposed as a heat exchanging portion in high-temperature-side heat exchangers. Low-temperature waste-heat gas generated in a micro gas turbine is imported into the heat exchangers so that direct heat exchange is performed between the waste-heat gas and each of the alloy containers. On the other hand, low-temperature-side hydrogen storage alloy containers each containing a hydrogen storage alloy are disposed as a heat exchanging portion in low-temperature-side heat exchangers. The high-temperature-side alloy containers and the low-temperature-side alloy containers are connected to each other by hydrogen-travelling pipes. Cold heat generated in the low-temperature-side heat exchangers is supplied to a refrigeration output portion.
    Type: Application
    Filed: June 8, 2001
    Publication date: December 13, 2001
    Applicant: JAPAN STEEL WORKS, LTD.
    Inventors: Takashi Iwamoto, Hiroyuki Togo, Masamitsu Murai, Ritsu Miura, Koji Hattori, Harunobu Takeda