Patents by Inventor Hisanori SAKUMA

Hisanori SAKUMA 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).

  • Water pump and method for manufacturing water pump
    Patent number: 10473104
    Abstract: A water pump has a pump housing (2) having therein a pump chamber (3); a drive shaft (7) rotatably supported in the pump housing (2); a pulley (5) having a flange wall (5a) fixed to one end portion of the drive shaft (7), the pulley (5) being formed integrally with the drive shaft (7) with synthetic resin material containing glass fiber material (25); and an impeller (8) secured to the other end portion of the drive shaft (7) so as to be able to rotate integrally with the drive shaft (7), the impeller (8) being accommodated in the pump chamber (3). Six penetration holes (23) are formed at the flange wall (5a), and the glass fiber material (25) existing around the penetration hole (23) is oriented at random. With this, decrease in strength of the pulley (5) can be suppressed.
    Type: Grant
    Filed: June 29, 2015
    Date of Patent: November 12, 2019
    Assignees: HITACHI AUTOMOTIVE SYSTEMS, LTD., SUMITOMO BAKELITE CO., LTD.
    Inventors: Yusuke Furusawa, Hideaki Nakamura, Hisanori Sakuma, Shu Okasaka
  • WATER PUMP AND METHOD FOR MANUFACTURING WATER PUMP
    Publication number: 20170218960
    Abstract: A water pump has a pump housing 2 having therein a pump chamber 3; a drive shaft 7 rotatably supported in the pump housing 2; a pulley 5 having a flange wall 5a fixed to one end portion of the drive shaft 7, the pulley 5 being formed integrally with the drive shaft 7 with synthetic resin material containing glass fiber material 25; and an impeller 8 secured to the other end portion of the drive shaft 7 so as to be able to rotate integrally with the drive shaft 7, the impeller 8 being accommodated in the pump chamber 3. Six penetration holes 23 are formed at the flange wall 5a, and the glass fiber material 25 existing around the penetration hole 23 is oriented at random. With this, decrease in strength of the pulley can be suppressed.
    Type: Application
    Filed: June 29, 2015
    Publication date: August 3, 2017
    Applicant: HITACHI AUTOMOTIVE SYSTEMS, LTD.
    Inventors: Yusuke FURUSAWA, Hideaki NAKAMURA, Hisanori SAKUMA