Patents by Inventor Kazuhito Mukai

Kazuhito Mukai 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).

  • Electromagnetic brake cooling structure of phase variable device in car engine
    Patent number: 6932036
    Abstract: An electromagnetic-brake cooling structure of a phase-variable device having an electromagnetic brake means (40) and varying the phase of a camshaft, wherein engine oil in an oil sump (74) on the radial inner side of a clutch case (60) led to the relative sliding surfaces of a friction material (66) and a rotary drum (44) through a notch (61) provided in the clutch case (60) at the front edge part of the inner peripheral wall of the clutch case (60), a notch (61b) for leading oil to the front edge part of the clutch case outer peripheral wall (60b), the oil on the relative sliding surfaces of the friction material (66) and the rotary drum (44) is discharged positively to the outside, and the circulation of the cooling oil is activated to increase the cooling effect of the sliding surface of the friction material (66).
    Type: Grant
    Filed: April 12, 2002
    Date of Patent: August 23, 2005
    Assignees: Nittan Valve Co., Ltd., Nissan Motor Co., Ltd., Dynax Corporation
    Inventors: Hiroshi Aino, Koichi Honma, Hiroki Morozumi, Yousuke Mae, Kazuhito Mukai
  • Electromagnetic brake cooling structure of phase variable device in car engine
    Publication number: 20050045127
    Abstract: An electromagnetic-brake cooling structure of a phase-variable device having an electromagnetic brake means (40) and varying the phase of a camshaft, wherein engine oil in an oil sump (74) on the radial inner side of a clutch case (60) led to the relative sliding surfaces of a friction material (66) and a rotary drum (44) through a notch (61) provided in the clutch case (60) at the front edge part of the inner peripheral wall of the clutch case (60), a notch (61b) for leading oil to the front edge part of the clutch case outer peripheral wall (60b), the oil on the relative sliding surfaces of the friction material (66) and the rotary drum (44) is discharged positively to the outside, and the circulation of the cooling oil is activated to increase the cooling effect of the sliding surface of the friction material (66).
    Type: Application
    Filed: April 12, 2002
    Publication date: March 3, 2005
    Inventors: Hiroshi Aino, Koichi Honma, Hiroki Morozumi, Yousuke Mae, Kazuhito Mukai
  • Mating plate in friction engagement device
    Patent number: 5109966
    Abstract: A mating plate in a friction engagement device comprises a steel core plate provided with a chromium plating whereby kinetic friction coefficient is improved and its change with the passage of time may be suppressed.
    Type: Grant
    Filed: September 6, 1991
    Date of Patent: May 5, 1992
    Assignee: Dynax Corporation
    Inventors: Kazuhito Mukai, Takao Shibuya