Patents by Inventor Masanori Takimae

Masanori Takimae 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).

  • Liquid pressurizing device
    Patent number: 7080792
    Abstract: A liquid pressuring device comprises a reciprocating pump (1), pressure sensor (23) and pressure control unit (25) which is adapted to control the motion of the plungers (5A, 5B) so as to make an actual delivery pressure value reach a predetermined threshold and, after reaching the threshold, control the actual delivery pressure value so as to determine an optimum feed rate, and thereafter maintain the feed rate of the plungers constant at the optimum feed rate. The pressure control means (25) may include a proportional control element for performing, after the actual delivery pressure value has reached the threshold, the proportional control of the actual delivery pressure value during a time until the plungers (5A, 5B) first reach the forward stroke end thereof.
    Type: Grant
    Filed: March 11, 2004
    Date of Patent: July 25, 2006
    Assignee: Sugino Machine Limited
    Inventors: Ryoji Muratsubaki, Osamu Honokidani, Masanori Takimae, Tadashi Sugimori
  • Liquid pressurizing device
    Publication number: 20040217191
    Abstract: A liquid pressuring device comprises a reciprocating pump (1), pressure sensor (23) and pressure control unit (25) which is adapted to control the motion of the plungers (5A, 5B) so as to make an actual delivery pressure value reach a predetermined threshold and, after reaching the threshold, control the actual delivery pressure value so as to determine an optimum feed rate, and thereafter maintain the feed rate of the plungers constant at the optimum feed rate. The pressure control means (25) may include a proportional control element for performing, after the actual delivery pressure value has reached the threshold, the proportional control of the actual delivery pressure value during a time until the plungers (5A, 5B) first reach the forward stroke end thereof.
    Type: Application
    Filed: March 11, 2004
    Publication date: November 4, 2004
    Applicant: Sugino Machine Limited
    Inventors: Ryoji Muratsubaki, Osamu Honokidani, Masanori Takimae, Tadashi Sugimori
  • Pressure hydraulic pump having first and second synchronously driven reciprocating pistons with a pressure control structure
    Patent number: 6068448
    Abstract: A high pressure hydraulic pump apparatus constituting a two-stage pressurizing hydraulic booster combining a pair of plunger pumps. The first and second pumps are driven into a push-pull synchronous operation at the equal stroke with each other. The per-stroke displacement of the first pump is greater than that of the second pump. The first pump draws by self-suction the liquid from a reservoir while the second pump is on the pressurizing and delivery stroke. When the first pump is on the delivery stroke, the liquid pressurized to a certain intermediate pressure by the first pump is sucked into the second pump. During the next reverse stroke the second pump further pressurizes and discharges the liquid while the first pump effects the suction stroke.
    Type: Grant
    Filed: December 9, 1996
    Date of Patent: May 30, 2000
    Assignee: Sugino Machine Limited
    Inventors: Ryoji Muratsubaki, Yukiaki Nagata, Osamu Honokidani, Masanori Kanemitsu, Masanori Takimae, Shinko Yamagishi, Tadashi Urasawa, Tadashi Sugimori