Patents by Inventor Kotaro Iwagoshi

Kotaro Iwagoshi 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).

  • Pump
    Patent number: 9494156
    Abstract: A pump that includes a pump body 10 which sucks in air from an inlet 7 and discharges the air; a hydraulic pump which pressure-feeds a lubricating oil to the pump body 10 in accordance with the driving of the pump body 10; a non-return valve 70 which is disposed in a valve accommodation portion 6 between the inlet 7 and the pump body 10 to open and close the valve accommodation portion 6; an air introduction path 19 which introduces air into a cylinder 74 of the non-return valve 70; and an air introduction valve 60 which opens the air introduction path 19 when the hydraulic pump is not operating.
    Type: Grant
    Filed: November 25, 2010
    Date of Patent: November 15, 2016
    Assignee: ULVAC KIKO, INC.
    Inventors: Koichi Maruyama, Junichi Aikawa, Naoto Yotsugi, Kotaro Iwagoshi
  • PUMP
    Publication number: 20120294740
    Abstract: A pump comprises: a pump body 10 which sucks in air from an inlet 7 and discharges the air; a hydraulic pump which pressure-feeds a lubricating oil to the pump body 10 in accordance with the driving of the pump body 10; a non-return valve 70 which is disposed in a valve accommodation portion 6 between the inlet 7 and the pump body 10 to open and close the valve accommodation portion 6; an air introduction path 19 which introduces air into a cylinder 74 of the non-return valve 70; and an air introduction valve 60 which opens the air introduction path 19 when the hydraulic pump is not operating.
    Type: Application
    Filed: November 25, 2010
    Publication date: November 22, 2012
    Applicant: ULVAC KIKO, Inc.
    Inventors: Koichi Maruyama, Junichi Aikawa, Naoto Yotsugi, Kotaro Iwagoshi
  • Vacuum pump
    Patent number: D619624
    Type: Grant
    Filed: November 11, 2009
    Date of Patent: July 13, 2010
    Assignee: Ulvac Kiko, Inc.
    Inventors: Kotaro Iwagoshi, Tsuneo Osaka
  • Piston pump
    Patent number: D700625
    Type: Grant
    Filed: May 23, 2013
    Date of Patent: March 4, 2014
    Assignee: Ulvac Kiko, Inc.
    Inventors: Kotaro Iwagoshi, Ryuji Itoyama, Norihiro Suzuki, Taisuke Osaka