Patents by Inventor Susumu Kameyama

Susumu Kameyama 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).

  • Semiconductor nanoparticles, method of producing the semiconductor nanoparticles, and light-emitting device
    Patent number: 11981849
    Abstract: Semiconductor nanoparticles are provided. The semiconductor nanoparticles contains Ag, at least one of In and Ga, and Se. An Ag content is 10 mol % to 30 mol %, a total content of the at least one of In and Ga is 15 mol % to 35 mol %, and an Se content is 35 mol % to 55 mol % in the semiconductor nanoparticles. The semiconductor nanoparticles emit light having an emission spectrum with a peak emission wavelength in a range of 500 nm to 900 nm, and a half bandwidth of 250 meV or less upon irradiation with light in a wavelength range of 350 nm to less than 500 nm.
    Type: Grant
    Filed: February 16, 2021
    Date of Patent: May 14, 2024
    Assignees: NATIONAL UNIVERSITY CORPORATION TOKAI NATIONAL HIGHER EDUCATION AND RESEARCH SYSTEM, OSAKA UNIVERSITY, NICHIA CORPORATION
    Inventors: Tsukasa Torimoto, Tatsuya Kameyama, Hiroki Yamauchi, Chie Miyamae, Yuki Mori, Susumu Kuwabata, Taro Uematsu, Daisuke Oyamatsu
  • Cooling device
    Patent number: 6997006
    Abstract: A cooling system that has a heat exchanger which is housed in one enclosure and is constituted of a plurality of heat exchange modes, and the heat exchanger includes a refrigerant forced circulation mode, a refrigerant natural circulation mode, and a ventilation mode. A temperature detector performs switching to an optimal mode, to thereby cool the inside of the enclosure of a housing accommodating equipment including a heat-generating component.
    Type: Grant
    Filed: March 24, 2003
    Date of Patent: February 14, 2006
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Susumu Kameyama, Yu Seshimo, Yasufumi Hatamura, Masaoki Ino, Hiroyuki Kobayakawa, Toshihiko Enomoto, Makoto Saitou
  • Cooling device
    Publication number: 20040148948
    Abstract: A cooling system of the invention has heat exchange means which is housed in one enclosure (31) and is constituted of a plurality of heat exchange modes, and the heat exchange means includes a refrigerant forced circulation mode, a refrigerant natural circulation mode, and a ventilation mode. Temperature detection means performs switching to an optimal mode, to thereby cool the inside of the enclosure (31) of a housing (30) accommodating equipment (32) including a heat-generating component (33).
    Type: Application
    Filed: November 28, 2003
    Publication date: August 5, 2004
    Inventors: Susumu Kameyama, Yu Seshimo, Yasufumi Hatamura, Masaoki Ino, Hiroyuki Kobayakawa, Toshihiko Enomoto, Makoto Saitou