Patents by Inventor Hideaki Takumi

Hideaki Takumi 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: 8333079
    Abstract: An adsorption heat pump is provided in which water vapor can be efficiently adsorbed and desorbed using a heat source having a lower temperature than ones heretofore in use because the pump employs an adsorbent which has a large difference in water adsorption amount in adsorption/desorption and can be regenerated (release the adsorbate) at a low temperature. The invention provides an adsorption heat pump which comprises an adsorbate, an adsorption/desorption part having an adsorbent for adsorbate adsorption/desorption, a vaporization part for adsorbate vaporization which has been connected to the adsorption/desorption part, and a condensation part for adsorbate condensation which has been connected to the adsorption/desorption part, wherein the adsorbent, when examined at 25° C., gives a water vapor adsorption isotherm which, in the relative vapor pressure range of from 0.05 to 0.30, has a relative vapor pressure region in which a change in relative vapor pressure of 0.
    Type: Grant
    Filed: October 1, 2008
    Date of Patent: December 18, 2012
    Assignees: Mitsubishi Plastics, Inc., Denso Corporation
    Inventors: Hiroyuki Kakiuchi, Takahiko Takewaki, Masaru Fujii, Masanori Yamazaki, Hideaki Takumi, Hiromu Watanabe, Kouji Inagaki, Atsushi Kosaka, Seiji Inoue, Satoshi Inoue
  • Patent number: 7497089
    Abstract: An adsorption heat pump is provided in which water vapor can be efficiently adsorbed and desorbed using a heat source having a lower temperature than ones heretofore in use because the pump employs an adsorbent which has a large difference in water adsorption amount in adsorption/desorption and can be regenerated (release the adsorbate) at a low temperature. The invention provides an adsorption heat pump which comprises an adsorbate, an adsorption/desorption part having an adsorbent for adsorbate adsorption/desorption, a vaporization part for adsorbate vaporization which has been connected to the adsorption/desorption part, and a condensation part for adsorbate condensation which has been connected to the adsorption/desorption part, wherein the adsorbent, when examined at 25° C., gives a water vapor adsorption isotherm which, in the relative vapor pressure range of from 0.05 to 0.30, has a relative vapor pressure region in which a change in relative vapor pressure of 0.
    Type: Grant
    Filed: August 21, 2003
    Date of Patent: March 3, 2009
    Assignees: Mitsubishi Chemical Corporation, Denso Corporation
    Inventors: Hiroyuki Kakiuchi, Takahiko Takewaki, Masaru Fujii, Masanori Yamazaki, Hideaki Takumi, Hiromu Watanabe, Kouji Inagaki, Atsushi Kosaka, Seiji Inoue, Satoshi Inoue
  • Publication number: 20090025403
    Abstract: An adsorption heat pump is provided in which water vapor can be efficiently adsorbed and desorbed using a heat source having a lower temperature than ones heretofore in use because the pump employs an adsorbent which has a large difference in water adsorption amount in adsorption/desorption and can be regenerated (release the adsorbate) at a low temperature. The invention provides an adsorption heat pump which comprises an adsorbate, an adsorption/desorption part having an adsorbent for adsorbate adsorption/desorption, a vaporization part for adsorbate vaporization which has been connected to the adsorption/desorption part, and a condensation part for adsorbate condensation which has been connected to the adsorption/desorption part, wherein the adsorbent, when examined at 25° C., gives a water vapor adsorption isotherm which, in the relative vapor pressure range of from 0.05 to 0.30, has a relative vapor pressure region in which a change in relative vapor pressure of 0.
    Type: Application
    Filed: October 1, 2008
    Publication date: January 29, 2009
    Applicants: MITSUBISHI CHEMICAL, CORPORATION, DENSO CORPORATION
    Inventors: Hiroyuki Kakiuchi, Takahiko Takewaki, Masaru Fujii, Masanori Yamazaki, Hideaki Takumi, Hiromu Watanabe, Kouji Inagaki, Atsushi Kosaka, Seiji Inoue, Satoshi Inoue
  • Publication number: 20040089001
    Abstract: An adsorption heat pump is provided in which water vapor can be efficiently adsorbed and desorbed using a heat source having a lower temperature than ones heretofore in use because the pump employs an adsorbent which has a large difference in water adsorption amount in adsorption/desorption and can be regenerated (release the adsorbate) at a low temperature.
    Type: Application
    Filed: August 21, 2003
    Publication date: May 13, 2004
    Applicants: MITSUBISHI CHEMICAL CORPORATION, DENSO CORPORATION
    Inventors: Hiroyuki Kakiuchi, Takahiko Takewaki, Masaru Fujii, Masanori Yamazaki, Hideaki Takumi, Hiromu Watanabe, Kouji Inagaki, Atsushi Kosaka, Seiji Inoue, Satoshi Inoue
  • Patent number: 6294685
    Abstract: A method for a gas phase catalytic oxidation reaction of a hydrocarbon, which comprises: subjecting an alkane having a carbon number ranging from 3 to 8 and/or an alkene having a carbon number ranging from 2 to 8 to a gas phase catalytic oxidation reaction to produce a vapor phase oxidation product in the presence of a mixed metal oxide catalyst, wherein the reacion is conducted in the presence of particles substantially inert to the reaction in an amount within a range of the same amount as the amount of catalyst to 99 wt. % in all particles.
    Type: Grant
    Filed: February 3, 2000
    Date of Patent: September 25, 2001
    Assignee: Mitsubishi Chemical Corporation
    Inventors: Takashi Ushikubo, Kazunori Oshima, Itaru Sawaki, Ken Shiraga, Satoshi Kobayakawa, Hideaki Takumi