Patents by Inventor Jun Kugenuma

Jun Kugenuma 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).

  • AIR-COOLED ENGINE AND ENGINE WORKING MACHINE
    Publication number: 20160237876
    Abstract: An air-cooled engine includes a muffler that is attached to an exhaust port of a cylinder and a fan case that houses a cooling fan, and a cylinder cooling room is formed by a cylinder cover that houses the cylinder. A muffler cooling room is formed by a first muffler cover that covers at least some of the muffler through a clearance and a second muffler cover that covers at least some of the first muffler cover through a clearance. Some of cooling air generated by the cooling fan is supplied to the muffler cooling room. The cooling air is supplied to at least one of a first space between the muffler and the first muffler cover and a second space between the first muffler cover and the second muffler cover.
    Type: Application
    Filed: December 4, 2014
    Publication date: August 18, 2016
    Inventors: Naoto ICHIHASHI, Takefumi KAWAGUCHI, Jun KUGENUMA
  • Engine blower
    Patent number: D638035
    Type: Grant
    Filed: August 6, 2010
    Date of Patent: May 17, 2011
    Assignee: Hitachi Koki Co., Ltd.
    Inventors: Shingo Kosugi, Masanori Okada, Shinichi Kakefuda, Yoshikazu Yokoyama, Jun Kugenuma