Patents by Inventor Eiji Naito

Eiji Naito 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).

  • Intake air filter device, filter replacement method of intake air filter device, and gas turbine
    Patent number: 10226726
    Abstract: An intake air filter device includes a filter member in an intake air path of a gas turbine. The intake air filter device includes: a frame body that supports the filter member which is configured to be inserted thereinto from an upstream side in a direction in which a fluid is to flow through the intake air path; and a closure plate engaging part mounted on a downstream side of the frame body and serving to engage a closure plate that covers a downstream side of the filter member.
    Type: Grant
    Filed: May 21, 2015
    Date of Patent: March 12, 2019
    Assignee: MITSUBISHI HITACHI POWER SYSTEMS, LTD.
    Inventors: Toyosei Aota, Eiji Naito, Hiroyuki Katayama
  • INTAKE AIR FILTER DEVICE, FILTER REPLACEMENT METHOD OF INTAKE AIR FILTER DEVICE, AND GAS TURBINE
    Publication number: 20170050135
    Abstract: An intake air filter device with a filter member disposed in an intake air path of a gas turbine. The intake air filter device including: a frame body that supports the filter member inserted thereinto from the upstream side in a direction in which a fluid flows through the intake air path; and a closure plate engaging part mounted on the downstream side of the frame body and serving to engage a closure plate that covers the downstream side of the filter member.
    Type: Application
    Filed: May 21, 2015
    Publication date: February 23, 2017
    Applicant: MITSUBISHI HITACHI POWER SYSTEMS, LTD.
    Inventors: Toyosei AOTA, Eiji NAITO, Hiroyuki KATAYAMA
  • Vehicle use ac generator
    Patent number: 6917134
    Abstract: To reduce noise, there is provided an alternator for motor vehicles having a rotor and a stator which is mounted between a pair of brackets. In the alternator a stator core forming the stator is made up of laminations of thin sheets. And at least a part of the thin sheets making up the stator core are split into four divisions or more in the circumferential direction; the thin sheets of each layer being laid with splits thereof arranged alternately in the circumferential direction.
    Type: Grant
    Filed: February 26, 2001
    Date of Patent: July 12, 2005
    Assignees: Hitachi, Ltd., Hitachi Car Engineering Co., Ltd.
    Inventors: Makoto Hirama, Eiji Naito, Sakae Ishida, Susumu Sasaki, Kenichiro Matsubara, Shinji Yamazaki, Susumu Tajima, Yoshiaki Honda
  • Vehicle use ac generator
    Publication number: 20010017500
    Abstract: To reduce noise, there is provided an alternator for motor vehicles having a rotor and a stator which is mounted between a pair of brackets. In the alternator a stator core forming the stator is made up of laminations of thin sheets. And at least a part of the thin sheets making up the stator core are split into four divisions or more in the circumferential direction; the thin sheets of each layer being laid with splits thereof arranged alternately in the circumferential direction.
    Type: Application
    Filed: February 26, 2001
    Publication date: August 30, 2001
    Applicant: Hitachi, Ltd.
    Inventors: Makoto Hirama, Eiji Naito, Sakae Ishida, Susumu Sasaki, Kenichiro Matsubara, Shinji Yamazaki, Susumu Tajima, Yoshiaki Honda