Patents by Inventor Kenji SHIKATA

Kenji SHIKATA 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).

  • Muffler and its corresponding manufacturing method
    Patent number: 9719404
    Abstract: A manufacturing method for a muffler includes: a trimming step, of cutting out a dogleg shaped muffler body member; a bending processing step of processing the muffler body member into a tube by advancing the muffler body member between an upper roller and a lower roller of a bending machine while adjusting an advancing direction with a guide and by changing a relative position of the upper roller and the lower roller; a first joining step of joining two ends of the tubularly-processed muffler body member in a long side direction; an insertion step of inserting an inner structural member into the inside of the tubularly-processed muffler body member; a second joining step of joining caps to opening portions of the tubularly-processed muffler body member; and a third joining step of joining an air intake joint and an exhaust pipe to the sealed muffler body member.
    Type: Grant
    Filed: April 9, 2014
    Date of Patent: August 1, 2017
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Akiyoshi Yamamoto, Kenji Shikata, Ken Miwa, Koichi Hiramatsu, Isao Nojiri, Tomoyuki Fujita, Kazuki Sugi
  • MUFFLER AND ITS CORRESPONDING MANUFACTURING METHOD
    Publication number: 20160053664
    Abstract: A manufacturing method for a muffler includes: a trimming step, of cutting out a dogleg shaped muffler body member; a bending processing step of processing the muffler body member into a tube by advancing the muffler body member between an upper roller and a lower roller of a bending machine while adjusting an advancing direction with a guide and by changing a relative position of the upper roller and the lower roller; a first joining step of joining two ends of the tubularly-processed muffler body member in a long side direction; an insertion step of inserting an inner structural member into the inside of the tubularly-processed muffler body member; a second joining step of joining caps to opening portions of the tubularly-processed muffler body member; and a third joining step of joining an air intake joint and an exhaust pipe to the sealed muffler body member.
    Type: Application
    Filed: April 9, 2014
    Publication date: February 25, 2016
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Akiyoshi YAMAMOTO, Kenji SHIKATA, Ken MIWA, Koichi HIRAMATSU, Isao NOJIRI, Tomoyuki FUJITA, Kazuki SUGI