Patents by Inventor Masamitsu Enoki

Masamitsu Enoki 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).

  • Integrated balanced wire rope reeving system for cargo container handling cranes
    Patent number: 6250486
    Abstract: An Integrated Balanced Wire Rope Reeving System for Cargo Container Handling Cranes wherein the same ropes perform both load hoist and trolley traversing operations.
    Type: Grant
    Filed: September 13, 1999
    Date of Patent: June 26, 2001
    Inventor: Masamitsu Enoki
  • Method for energy storage for load hoisting machinery
    Patent number: 5936375
    Abstract: A method for energy storage and recovery for load hoisting equipment driven by an inverter controlled first induction motor and having a second inverter controlling a second induction motor which drives a flywheel whereby, utilizing rest power such as reverse power from the first induction motor when lowering a load and unused power at small load or idle to accelerate rotation of a flywheel, whereby energy is stored, and the system is reversed when a load is lifted and power is consumed whereby the flywheel causes the second motor to generate power and deliver it to the first motor.
    Type: Grant
    Filed: July 31, 1998
    Date of Patent: August 10, 1999
    Assignee: Paceco Corp.
    Inventor: Masamitsu Enoki
  • Guide chute for cargo container handling cranes
    Patent number: 5603598
    Abstract: A method and apparatus for elimination of residual sway in a cargo container handling gantry crane for reducing container handling cycle times.
    Type: Grant
    Filed: April 11, 1994
    Date of Patent: February 18, 1997
    Assignee: Paceco Corp.
    Inventors: Shuji Hasegawa, Masamitsu Enoki
  • Cargo container transfer system for cranes
    Patent number: 5570986
    Abstract: A method and apparatus for cargo container transfer in a cargo container handling gantry crane for reducing container handling cycle times.
    Type: Grant
    Filed: January 3, 1994
    Date of Patent: November 5, 1996
    Assignee: Paceco Corp.
    Inventors: Shuji Hasegawa, Masamitsu Enoki
  • Variable level lifting platform for a cargo container handling crane
    Patent number: 5538382
    Abstract: "A variable level platform suspended from the gantry of a cargo container handling gantry crane by a pair of scissors jacks with fleet through wire rope reeving for suspending a lifting spreader thereunder whereby the platform effectively shortens the spreader lift lines for reducing container sway and container handling cycle times.
    Type: Grant
    Filed: June 3, 1994
    Date of Patent: July 23, 1996
    Assignee: Paceco Corp.
    Inventors: Shuji Hasegawa, Masamitsu Enoki