Patents by Inventor Fumiaki Nishikawa

Fumiaki Nishikawa 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: 9056548
    Abstract: Systems and methods are disclosed for improving operability of a work vehicle. In accordance with one implementation, a work vehicle is disclosed. The work vehicle includes a first PTO shaft and a second PTO shaft, the first and second PTO shafts being removably mounted to a vehicle body rear structure and fitted to a power receiving unit on an implement side. The work vehicle also includes a PTO drive mechanism comprising a PTO transmission mechanism, the PTO drive mechanism transmitting rotational power from a power source to the first PTO shaft, and a storage unit storing the second PTO shaft. The work vehicle further includes a PTO transmission operation lever allowing a transmission operation to be performed on the PTO transmission mechanism, wherein the PTO transmission operation lever and the storage unit are provided in the vehicle body rear structure.
    Type: Grant
    Filed: September 13, 2013
    Date of Patent: June 16, 2015
    Assignee: ISEKI & CO., LTD.
    Inventors: Tomoo Kiyokawa, Noboru Sagawa, Fumiaki Nishikawa, Tatsuzo Murakami
  • Patent number: 9003908
    Abstract: According to one embodiment, a working vehicle includes: a main change speed mechanism configured to transmit a rotating power, generated by a power source; a first auxiliary change speed mechanism configured to transmit the rotating power, transmitted through the main change speed mechanism, to drive wheels; a second auxiliary change speed mechanism configured to transmit the rotating power to the drive wheels; a first lever configured to operate the first auxiliary change speed mechanism to perform a first auxiliary shift operation; and a second lever configured to operate the second auxiliary change speed mechanism to perform a second auxiliary shift operation, wherein: the first auxiliary change speed mechanism is activated when the second auxiliary change speed mechanism in a neutral state; and the second auxiliary change speed mechanism is activated when the first auxiliary change speed mechanism is in the neutral state.
    Type: Grant
    Filed: September 11, 2013
    Date of Patent: April 14, 2015
    Assignee: Iseki & Co., Ltd.
    Inventors: Noboru Sagawa, Takashi Wakino, Fumiaki Nishikawa, Tatsuzo Murakami, Satoru Kinoshita
  • Publication number: 20140076073
    Abstract: Systems and methods are disclosed for improving operability of a work vehicle. In accordance with one implementation, a work vehicle is disclosed. The work vehicle includes a first PTO shaft and a second PTO shaft, the first and second PTO shafts being removably mounted to a vehicle body rear structure and fitted to a power receiving unit on an implement side. The work vehicle also includes a PTO drive mechanism comprising a PTO transmission mechanism, the PTO drive mechanism transmitting rotational power from a power source to the first PTO shaft, and a storage unit storing the second PTO shaft. The work vehicle further includes a PTO transmission operation lever allowing a transmission operation to be performed on the PTO transmission mechanism, wherein the PTO transmission operation lever and the storage unit are provided in the vehicle body rear structure.
    Type: Application
    Filed: September 13, 2013
    Publication date: March 20, 2014
    Inventors: Tomoo Kiyokawa, Noboru Sagawa, Fumiaki Nishikawa, Tatsuzo Murakami
  • Publication number: 20140076103
    Abstract: According to one embodiment, a working vehicle includes: a main change speed mechanism configured to transmit a rotating power, generated by a power source; a first auxiliary change speed mechanism configured to transmit the rotating power, transmitted through the main change speed mechanism, to drive wheels; a second auxiliary change speed mechanism configured to transmit the rotating power to the drive wheels; a first lever configured to operate the first auxiliary change speed mechanism to perform a first auxiliary shift operation; and a second lever configured to operate the second auxiliary change speed mechanism to perform a second auxiliary shift operation, wherein: the first auxiliary change speed mechanism is activated when the second auxiliary change speed mechanism in a neutral state; and the second auxiliary change speed mechanism is activated when the first auxiliary change speed mechanism is in the neutral state.
    Type: Application
    Filed: September 11, 2013
    Publication date: March 20, 2014
    Applicant: ISEKI & CO., LTD.
    Inventors: Noboru Sagawa, Takashi Wakino, Fumiaki Nishikawa, Tatsuzo Murakami, Satoru Kinoshita