Patents by Inventor Koichi IMADA

Koichi IMADA 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: 9879678
    Abstract: An object is to enable suppression of degradation of reliability by supporting a flange portion of a crankshaft with a bearing while downsizing a scroll compressor by reducing the size of the flange portion of the crankshaft. A scroll compressor includes: a fixed scroll fixed to a frame; an orbiting scroll forming a compression chamber by performing an orbital motion with respect to the fixed scroll; an electric motor that drives the orbiting scroll via the crankshaft; and a bearing part provided on the lower side from the flange portion of the crankshaft that rotatably supports a main shaft part of the crankshaft. The scroll compressor furthers has a thrust stopper, provided between the flange portion and the bearing part, in contact with the flange portion on the upper side and in contact with the bearing part on the lower side. Assuming that the outer diameter of the flange portion 12d is ?Dt and the outer diameter of the thrust stopper is ?Ds, ?Dt<?Ds holds.
    Type: Grant
    Filed: March 27, 2013
    Date of Patent: January 30, 2018
    Assignee: Johnson Controls-Hitachi Air Conditioning Technology (Hong Kong) Limited
    Inventors: Yoshihiro Fukaya, Takeshi Tsuchiya, Shuji Hasegawa, Koichi Imada, Akihiro Ishikawa
  • Publication number: 20160003252
    Abstract: An object is to enable suppression of degradation of reliability by supporting a flange portion of a crankshaft with a bearing while downsizing a scroll compressor by reducing the size of the flange portion of the crankshaft. A scroll compressor includes: a fixed scroll fixed to a frame; an orbiting scroll forming a compression chamber by performing an orbital motion with respect to the fixed scroll; an electric motor that drives the orbiting scroll via the crankshaft; and a bearing part provided on the lower side from the flange portion of the crankshaft that rotatably supports a main shaft part of the crankshaft. The scroll compressor furthers has a thrust stopper, provided between the flange portion and the bearing part, in contact with the flange portion on the upper side and in contact with the bearing part on the lower side. Assuming that the outer diameter of the flange portion 12d is ?Dt and the outer diameter of the thrust stopper is ?Ds, ?Dt<?Ds holds.
    Type: Application
    Filed: March 27, 2013
    Publication date: January 7, 2016
    Inventors: Yoshihiro FUKAYA, Takeshi TSUCHIYA, Shuji HASEGAWA, Koichi IMADA, Akihiro ISHIKAWA