Patents by Inventor Kohji Irikura

Kohji Irikura 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).

  • Integral-type hydraulic and mechanical transaxle apparatus for driving and steering a vehicle
    Patent number: 6524205
    Abstract: An integral-type transaxle apparatus comprising a single housing in which a pair of driving axles, a differential mechanism for differentially connecting both said driving axles to each other, a driving hydraulic stepless transmission which fluidly connects a hydraulic pump and a hydraulic motor, a steering hydraulic stepless transmission which fluidly connects a hydraulic pump and a hydraulic motor, a mechanical transmission for transmitting outputs of both said hydraulic stepless transmissions to said differential mechanism are accommodated, wherein at least one of said hydraulic stepless transmissions is disposed such that a rotational axis of a pump shaft of said one hydraulic stepless transmission and a rotational axis of a motor shaft of said one hydraulic stepless transmission are perpendicular to each other.
    Type: Grant
    Filed: August 16, 2000
    Date of Patent: February 25, 2003
    Assignees: Kanzaki Kokyukoki Mfg. Co., Ltd., Tuff Torq Corporation
    Inventors: Kohji Irikura, Norihiro Ishii, Ryota Ohashi, Kenichi Takada, Hirohiko Kawada, Robert Abend, Hiroaki Shimizu