Patents by Inventor Itsuki Doi

Itsuki Doi 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: 11459040
    Abstract: Provided is a work vehicle having an improved obstacle detection accuracy. The work vehicle includes: a bonnet provided on a front portion of a travelling vehicle body; an obstacle sensor that detects an obstacle on a front side; and a sensor attaching stay configured to extend toward a front side of the bonnet and to allow the obstacle sensor to be attached thereto.
    Type: Grant
    Filed: October 25, 2019
    Date of Patent: October 4, 2022
    Assignee: ISEKI & CO., LTD.
    Inventors: Hiroshi Kamoda, Itsuki Doi, Yutaka Kajino, Akihiro Machida, Seiji Tanaka, Shiro Ito
  • Patent number: 11427134
    Abstract: A working vehicle may be provided that detects obstacles around a self-traveling tractor in a wide range, with reduced erroneous detection. A tractor may include a vehicle body including a front wheel and a rear wheel; a rear wheel fender covering the front and top of the rear wheel; a rear stay in a shape that extends along the rear wheel fender, a rear first obstacle sensor provided at the front of the rear stay; and a rear second obstacle sensor provided at the rear of the rear stay.
    Type: Grant
    Filed: October 25, 2019
    Date of Patent: August 30, 2022
    Assignee: ISEKI & CO., LTD.
    Inventors: Hiroshi Kamoda, Itsuki Doi, Yutaka Kajino, Akihiro Machida, Seiji Tanaka, Shiro Ito, Hisasada Fujiie
  • Publication number: 20200130758
    Abstract: Provided is a work vehicle having an improved obstacle detection accuracy. The work vehicle includes: a bonnet provided on a front portion of a travelling vehicle body; an obstacle sensor that detects an obstacle on a front side; and a sensor attaching stay configured to extend toward a front side of the bonnet and to allow the obstacle sensor to be attached thereto.
    Type: Application
    Filed: October 25, 2019
    Publication date: April 30, 2020
    Inventors: Hiroshi KAMODA, Itsuki DOI, Yutaka KAJINO, Akihiro MACHIDA, Seiji TANAKA, Shiro ITO
  • Publication number: 20200130601
    Abstract: A working vehicle may be provided that detects obstacles around a self-traveling tractor in a wide range, with reduced erroneous detection. A tractor may include a vehicle body including a front wheel and a rear wheel; a rear wheel fender covering the front and top of the rear wheel; a rear stay in a shape that extends along the rear wheel fender, a rear first obstacle sensor provided at the front of the rear stay; and a rear second obstacle sensor provided at the rear of the rear stay.
    Type: Application
    Filed: October 25, 2019
    Publication date: April 30, 2020
    Inventors: Hiroshi KAMODA, Itsuki DOI, Yutaka KAJINO, Akihiro MACHIDA, Seiji TANAKA, Shiro ITO, Hisasada FUJIIE
  • Patent number: 9359016
    Abstract: A cabin frame structure that allows a roof to be tightly attached is provided. A work vehicle cabin includes lateral frame members extending laterally, each of the lateral frame members having an upper surface and an end; longitudinal frame members extending longitudinally, each of the longitudinal frame members having an upper surface and an end; connecting plates each having an upper surface, the connecting plates connecting the lateral frame members and the longitudinal frame members, the connecting plates straddling across the lateral frame members and the longitudinal frame members; pillars attached to the ends of the lateral frame members, the ends of the longitudinal frame members, and the connecting plates; a roof disposed over the lateral frame members, the longitudinal frame members, and the connecting plates; and a seal provided between the roof and the lateral frame members, the longitudinal frame members, and the connecting plates.
    Type: Grant
    Filed: February 26, 2014
    Date of Patent: June 7, 2016
    Assignee: ISEKI & CO., LTD.
    Inventors: Itsuki Doi, Takeshi Hagiyama, Koji Ochi, Takayuki Kajihara
  • Patent number: 9316338
    Abstract: A working vehicle includes: a cabin; an air conditioning unit disposed at a rear upper portion of the cabin; and drain hoses connected to a drain portion of the air conditioning unit, water drained from the drain portion flowing through the drain hoses, wherein the drain hoses are respectively disposed at both left and right sides of the air conditioning unit in front and rear direction, and both front and rear portions of the drain hoses are provided with drain hose outlets from which the water flowing through the drain hoses is drained.
    Type: Grant
    Filed: November 29, 2012
    Date of Patent: April 19, 2016
    Assignee: ISEKI & CO., LTD.
    Inventors: Itsuki Doi, Takeshi Hagiyama, Koji Ochi, Takayuki Kajihara
  • Publication number: 20140292035
    Abstract: A cabin frame structure that allows a roof to be tightly attached is provided.
    Type: Application
    Filed: February 26, 2014
    Publication date: October 2, 2014
    Applicant: Iseki & Co., Ltd.
    Inventors: Itsuki Doi, Takeshi Hagiyama, Koji Ochi, Takayuki Kajihara
  • Patent number: D686643
    Type: Grant
    Filed: November 8, 2012
    Date of Patent: July 23, 2013
    Assignee: Iseki & Co., Ltd.
    Inventors: Masami Kinoshita, Seiji Tanaka, Itsuki Doi, Koji Ochi
  • Patent number: D902263
    Type: Grant
    Filed: April 12, 2019
    Date of Patent: November 17, 2020
    Assignee: Iseki & Co., Ltd.
    Inventors: Hiroshi Kamoda, Shiro Ito, Itsuki Doi, Akira Okimoto, Yutaka Kajino, Seiji Tanaka, Hisasada Fujiie, Akihiro Machida
  • Patent number: D902264
    Type: Grant
    Filed: April 12, 2019
    Date of Patent: November 17, 2020
    Assignee: Iseki & Co., Ltd.
    Inventors: Hiroshi Kamoda, Shiro Ito, Itsuki Doi, Akira Okimoto, Yutaka Kajino, Seiji Tanaka, Hisasada Fujiie, Akihiro Machida