Patents by Inventor Yoshio Yoshizawa

Yoshio Yoshizawa 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 heat collector, sunlight collecting reflector, sunlight collecting system and solar energy utilization system
    Patent number: 8359861
    Abstract: A sunlight collecting system and a solar energy utilization system which collects sunlight with the sunlight collecting system are provided, a sunlight collecting system including a solar heat collector which includes a heat collecting element which is formed by a helically wound heat exchange medium circulation pipe inside which the heat exchange medium flows, in such a way to have an incurved light receiving surface which narrows and converges towards the sunlight inlet and a sunlight collecting reflector which includes a reflector group which includes a plurality of reflector segments each of which includes a reflecting surface which makes sunlight converge on a heat collector, a sunlight collecting system in which a plurality of heliostats Bm are arranged in places which are irradiated by the sunlight between a plurality of heliostats An, in which each of the heliostats An and the heliostats Bm reflect light in a direction to a light collecting point of a heliostat group in which the heliostat is included
    Type: Grant
    Filed: August 31, 2005
    Date of Patent: January 29, 2013
    Assignee: Tokyo Institute of Technology
    Inventors: Yutaka Tamaura, Yoshio Yoshizawa, Motoaki Utamura, Hiroshi Hasuike, Hideyuki Ishihara, Tadahiko Takamatsu
  • Solar Heat Collector, Sunlight Collecting Reflector, Sunlight Collecting System and Solar Energy Utilization System
    Publication number: 20090173337
    Abstract: A sunlight collecting system and a solar energy utilization system which collects sunlight with the sunlight collecting system are provided, a sunlight collecting system including a solar heat collector which includes a heat collecting element which is formed by a helically wound heat exchange medium circulation pipe inside which the heat exchange medium flows, in such a way to have an incurved light receiving surface which narrows and converges towards the sunlight inlet and a sunlight collecting reflector which includes a reflector group which includes a plurality of reflector segments each of which includes a reflecting surface which makes sunlight converge on a heat collector, a sunlight collecting system in which a plurality of heliostats Bm are arranged in places which are irradiated by the sunlight between a plurality of heliostats An, in which each of the heliostats An and the heliostats Bm reflect light in a direction to a light collecting point of a heliostat group in which the heliostat is included
    Type: Application
    Filed: August 31, 2005
    Publication date: July 9, 2009
    Inventors: Yutaka Tamaura, Yoshio Yoshizawa, Motoaki Utamura, Hiroshi Hasuike, Hideyuki Ishihara, Tadahiko Takamatsu