Patents by Inventor Minoru Yamanaka

Minoru Yamanaka 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).

  • Patent number: 4299374
    Abstract: A solenoid valve sealing assembly including a valve housing made of synthetic resin which defines a valve chamber, a magnetic coil wound on a bobbin for generating a magnetic flux, magnetic valve mechanism supported in the chamber for valve movement by the magnetic flux, a plurality of terminals which are electrically connected at both ends of the magnet coil, lead wires which are electrically connected with the terminals for supplying an electrical signal to the magnetic coil and a water proof member for providing waterproofing between the valve housing and the lead wires such that the lead wires are inserted in the waterproof member with the waterproof member being embedded in the valve housing by molding of the valve housing.
    Type: Grant
    Filed: August 9, 1979
    Date of Patent: November 10, 1981
    Assignee: Sisin Seiki Kabushiki Kaisha
    Inventor: Minoru Yamanaka
  • Patent number: 4276746
    Abstract: A compound valve device comprises a body member, a first valve member being located in the body member and controlling the fluid communication between a first input port and a first output port, and a second valve member being located in the body member and controlling the fluid communication between a second input port and a second output port. The two valve members operate in sequence, without a significant difference in time in response to one signal pressure.
    Type: Grant
    Filed: February 6, 1979
    Date of Patent: July 7, 1981
    Assignee: Aisin Seiki Kabushiki Kaisha
    Inventors: Minoru Yamanaka, Tooru Tamura
  • Patent number: 4272669
    Abstract: A heater comprising a heater proper, heating members erected at spaced locations on the heater proper and heat emitters enclosed one each in the heating members, whereby given raw foodstuffs are internally heated by having the heating members kept pierced in the foodstuffs.
    Type: Grant
    Filed: April 19, 1979
    Date of Patent: June 9, 1981
    Assignee: Takeshi Yagi
    Inventors: Minoru Yamanaka, Yukio Yamaya, Masahide Ichikawa
  • Patent number: 4183372
    Abstract: An altitude compensation valve assembly comprising a housing structure having a bellows and a check valve unit. The check valve unit is supported for movement between a closed position, where communication between a fluid under pressure introduced into an inlet port of the valve assembly is discommunicated from the atmosphere, and an opened position where such communication is established. The check valve unit is normally biased towards the closed position and is moved towards the opened position when the pressure introduced through the inlet port exceeds a predetermined value determined in consideration with change in a altitude in which the valve assembly is operated to compensate for reduction in pressure resulting from change in altitude.
    Type: Grant
    Filed: April 4, 1977
    Date of Patent: January 15, 1980
    Assignees: Aisin Seiki Kabushiki Kaisha, Toyota Jidosha Kogyo Kabushiki Kaisha
    Inventors: Tatehito Ueda, Minoru Yamanaka, Shoji Ito
  • Patent number: 4177224
    Abstract: An atmospheric pressure responsive and vacuum actuated control valve applied to a fluid control system for maintaining the same absolute ratio of air rate by fuel rate in a combustible mixture in an intake manifold of a vehicle engine regardless of whether the vehicle engine is moved to higher altitudes. The valve has a succesive changing ability of a superimposed corrective quantity of air on the intake manifold in accordance with the altitude of the engine.
    Type: Grant
    Filed: April 24, 1978
    Date of Patent: December 4, 1979
    Assignees: Aisin Seiki Kabushiki Kaisha, Toyota Jidosha Kogyo Kabushiki Kaisha
    Inventors: Minoru Yamanaka, Akira Ii
  • Patent number: 4170971
    Abstract: A pneumatic pressure control system which controls the ratio of fuel to air in the intake manifold of the engine includes a valve assembly which is operative in response to the combined action of the negative pressure existing in the intake manifold and positive pressure from an air pump operated by the engine. When the sum of the negative and positive pressures acting on opposite sides of a diaphragm are sufficient to overcome a spring force on the negative pressure side of the diaphragm the movement of the diaphragm will cause the operation of the valve to admit atmospheric air pressure either directly into the intake manifold or to a fuel regulating device to operate a further valve to reduce the supply of fuel to the carburetor.
    Type: Grant
    Filed: May 20, 1977
    Date of Patent: October 16, 1979
    Assignee: Aisin Seiki Kabushiki Kaisha
    Inventors: Minoru Yamanaka, Yasuhiro Kawabata
  • Patent number: 4166476
    Abstract: A vacuum cut-off valve for cutting off vacuum communication between an inlet port and an outlet port when the inlet vacuum increases above a predetermined vacuum level so that the outlet vacuum is maintained at a constant predetermined vacuum level. When the valve cutting operation between the inlet port and the outlet port is insufficient and vacuum leakage results, atmospheric pressure is admitted to the outlet port to thereby maintain the outlet vacuum at the constant predetermined level.
    Type: Grant
    Filed: August 8, 1977
    Date of Patent: September 4, 1979
    Assignee: Aisin Seiki Kabushiki Kaisha
    Inventors: Minoru Yamanaka, Yasuhiro Kawabata
  • Patent number: D261820
    Type: Grant
    Filed: April 19, 1979
    Date of Patent: November 17, 1981
    Assignee: Takeshi Yagi
    Inventor: Minoru Yamanaka