Patents by Inventor Yoshinobu Kawamitsu

Yoshinobu Kawamitsu 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).

  • Solar light (heat) absorption material and heat absorption/accumulation material and solar light (heat) absorption/control building component using the same
    Patent number: 10018377
    Abstract: A solar light (heat) absorption material which has an excellent solar light (heat) absorbing ability and a simple structure, and may be used as a low-cost and high-performance heat absorption/accumulation material. Also, a solar light (heat) absorption/control building component including the solar light (heat) absorption material that allows for easy change of its solar light (heat) absorption/control ability. The material includes particles dispersed into a liquid medium having a specific heat ranging from 0.4 to 1.4 cal/g/° C. and a melting point of 5° C. or lower. The dispersed particles have L*value of 30 or less as determined by the CIE-Lab color system (light source D65).
    Type: Grant
    Filed: August 20, 2014
    Date of Patent: July 10, 2018
    Assignees: University of the Ryukyus, Osaka Gas Co., Ltd.
    Inventors: Yoshikazu Kondo, Masami Ueno, Yoshinobu Kawamitsu, Junichiro Tsutsumi
  • Solar Light (Heat) Absorption Material and Heat Absorption/Accumulation Material and Solar Light (Heat) Absorption/Control Building Component Using the Same
    Publication number: 20140352237
    Abstract: A solar light (heat) absorption material which has an excellent solar light (heat) absorbing ability and a simple structure, and may be used as a low-cost and high-performance heat absorption/accumulation material. Also, a solar light (heat) absorption/control building component including the solar light (heat) absorption material that allows for easy change of its solar light (heat) absorption/control ability. The material includes particles dispersed into a liquid medium having a specific heat ranging from 0.4 to 1.4 cal/g/° C. and a melting point of 5° C. or lower. The dispersed particles have L*value of 30 or less as determined by the CIE-Lab color system (light source D65).
    Type: Application
    Filed: August 20, 2014
    Publication date: December 4, 2014
    Inventors: Yoshikazu Kondo, Masami Ueno, Yoshinobu Kawamitsu, Junichiro Tsutsumi
  • Solar Light (Heat) Absorption Material and Heat Absorption/Accumulation Material and Solar Light (Heat) Absorption/Control Building Component Using the Same
    Publication number: 20120017622
    Abstract: A solar light (heat) absorption material is provided which has an excellent solar light (heat) absorbing ability and a simple structure, and may be usable as a low-cost and high-performance heat absorption/accumulation material, the inventive material being usable also as a solar light (heat) absorption/control building component that allows easy change of its solar light (heat) absorption/control ability. The material comprises particles dispersed into a liquid medium having a specific heat ranging from 0.4 to 1.4 cal/g/° C. and a melting point of 5° C. or lower. The dispersed particles have L*value of 30 or less as determined by the CIE-Lab color system (light source D65).
    Type: Application
    Filed: March 5, 2010
    Publication date: January 26, 2012
    Applicants: OSAKA GAS CO., LTD., UNIVERSITY OF THE RYUKYUS
    Inventors: Yoshikazu Kondo, Masami Ueno, Yoshinobu Kawamitsu, Junichiro Tsutsumi