Patents by Inventor Nobuo Wada

Nobuo Wada 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).

  • Heat exchanger, refrigerating machine and sintered body
    Patent number: 11796228
    Abstract: A heat exchanger includes: a low temperature side channel through which low temperature liquid helium flows; a high temperature side channel through which high temperature liquid helium flows; and a thermal conduction unit that conducts heat from the high temperature side channel to the low temperature side channel. The thermal conduction unit has a partition member that separates the high temperature side channel and the low temperature side channel from each other and a thermal resistance reduction unit that reduces the thermal resistance between the partition member and the liquid helium. The thermal resistance reduction unit has a porous body having nano-size pores and fine metal particles having higher thermal conductivity than that of the porous body.
    Type: Grant
    Filed: February 25, 2019
    Date of Patent: October 24, 2023
    Assignee: NATIONAL UNIVERSITY CORPORATION TOKAI NATIONAL HIGHER EDUCATION AND RESEARCH SYSTEM
    Inventors: Nobuo Wada, Taku Matsushita, Mitsunori Hieda
  • HEAT EXCHANGER, REFRIGERATING MACHINE AND SINTERED BODY
    Publication number: 20210033312
    Abstract: A heat exchanger includes: a low temperature side channel through which low temperature liquid helium flows; a high temperature side channel through which high temperature liquid helium flows; and a thermal conduction unit that conducts heat from the high temperature side channel to the low temperature side channel. The thermal conduction unit has a partition member that separates the high temperature side channel and the low temperature side channel from each other and a thermal resistance reduction unit that reduces the thermal resistance between the partition member and the liquid helium. The thermal resistance reduction unit has a porous body having nano-size pores and fine metal particles having higher thermal conductivity than that of the porous body.
    Type: Application
    Filed: February 25, 2019
    Publication date: February 4, 2021
    Applicant: NATIONAL UNIVERSITY CORPORATION TOKAI NATIONAL HIGHER EDUCATION AND RESEARCH SYSTEM
    Inventors: Nobuo Wada, Taku Matsushita, Mitsunori Hieda
  • Piercing needle
    Patent number: 6656167
    Abstract: A piercing needle having a low piercing resistance even if repeatedly caused to pierce is provided. The piercing needle has an undercoat of a silane coupling agent, preferably, an amino group-containing alkoxysilane or an epoxy group-containing alkoxysilane, and an outer surface of a mixture of a (1) reactive silicone such as a reaction product of an amino group-containing alkoxysilane, an epoxy group-containing alkoxysilane and a silicone having silanol groups at both terminal ends, with (2) a non-reactive silicone.
    Type: Grant
    Filed: January 8, 2001
    Date of Patent: December 2, 2003
    Assignee: Nipro Corporation
    Inventors: Taku Numao, Masashi Ishida, Nobuo Wada, Takeshi Nizuka
  • Piercing needle
    Publication number: 20010021832
    Abstract: A piercing needle having a low piercing resistance even if repeatedly caused to pierce is provided. The piercing needle has an undercoat of a silane coupling agent, preferably, an amino group-containing alkoxysilane or an epoxy group-containing alkoxysilane, and an outer surface of a mixture of a (1) reactive silicone such as a reaction product of an amino group-containing alkoxysilane, an epoxy group-containing alkoxysilane and a silicone having silanol groups at both terminal ends, with (2) a non-reactive silicone.
    Type: Application
    Filed: January 8, 2001
    Publication date: September 13, 2001
    Inventors: Taku Numao, Masashi Ishida, Nobuo Wada, Takeshi Nizuka