Patents by Inventor Toshiro NAMATAME

Toshiro NAMATAME 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).

  • Working oil chamber sealing system of rotary vane steering gear actuator
    Patent number: 9567998
    Abstract: A working oil chamber sealing system of a rotary vane steering gear actuator having a top end face of a respective segment of a housing that holds a segment top face horizontal seal. The segment top face horizontal seal having a sealing face which touches a rear face of a top cover. The top cover rear face holds an upper ring seal, a sealing face of which touches an outer circumferential edge of an upper end face of a rotor and also touches a sealing face inner edge of the segment top face horizontal seal and a sealing face inner edge of an upper horizontal vane seal of a rotor vane, respectively.
    Type: Grant
    Filed: March 4, 2015
    Date of Patent: February 14, 2017
    Assignee: JAPAN HAMWORTHY & CO., LTD.
    Inventors: Yukio Tomita, Toshiro Namatame, Takayuki Wakabayashi
  • WORKING OIL CHAMBER SEALING SYSTEM OF ROTARY VANE STEERING GEAR ACTUATOR
    Publication number: 20150252804
    Abstract: A working oil chamber sealing system of a rotary vane steering gear actuator having a top end face of a respective segment of a housing that holds a segment top face horizontal seal. The segment top face horizontal seal having a sealing face which touches a rear face of a top cover. The top cover rear face holds an upper ring seal, a sealing face of which touches an outer circumferential edge of an upper end face of a rotor and also touches a sealing face inner edge of the segment top face horizontal seal and a sealing face inner edge of an upper horizontal vane seal of a rotor vane, respectively.
    Type: Application
    Filed: March 4, 2015
    Publication date: September 10, 2015
    Applicant: JAPAN HAMWORTHY & CO., LTD.
    Inventors: Yukio TOMITA, Toshiro NAMATAME, Takayuki WAKABAYASHI