Patents by Inventor Kiyofumi Sakurahara

Kiyofumi Sakurahara 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: 9016161
    Abstract: A working vehicle attachable an implement such as front loader includes a steering wheel, a steering column frame which supports the steering wheel and has a shape that is long in lengthwise direction, a joy-stick control lever which is disposed in a lateral side of the steering wheel, and a valve which is disposed on an outside face of the steering column frame and is connected to the joy-stick control lever. Accordingly, since the valve is disposed on the outside face of the steering column frame, it becomes easy to perform an assembling work, maintenance check work and the like with respect to the valve.
    Type: Grant
    Filed: March 12, 2012
    Date of Patent: April 28, 2015
    Assignee: Iseki & Co., Ltd.
    Inventor: Kiyofumi Sakurahara
  • Patent number: 8905180
    Abstract: A working vehicle attachable an implement includes a steering wheel which is disposed in a rear side of an engine hood covering an engine compartment for accommodating an engine, a control panel which is disposed near the steering wheel, a joy-stick control lever which is disposed in a rear side of the engine hood and in a lateral side of the steering wheel, a valve which is disposed in the rear side of the engine hood and is connected to the joy-stick control lever, a top cover which is disposed below the control panel, a bottom cover which includes a portion standing up from a floor surface and is a front portion of a floor part, and a middle cover which is disposed between the top cover and the bottom cover, wherein the valve is covered by the top cover and the middle cover, and the middle cover is detachable.
    Type: Grant
    Filed: March 12, 2012
    Date of Patent: December 9, 2014
    Assignee: Iseki & Co., Ltd.
    Inventors: Kiyofumi Sakurahara, Koji Furukawa
  • Publication number: 20130186227
    Abstract: A working vehicle attachable an implement such as front loader includes a steering wheel, a steering column frame which supports the steering wheel and has a shape that is long in lengthwise direction, a joy-stick control lever which is disposed in a lateral side of the steering wheel, and a valve which is disposed on an outside face of the steering column frame and is connected to the joy-stick control lever. Accordingly, since the valve is disposed on the outside face of the steering column frame, it becomes easy to perform an assembling work, maintenance check work and the like with respect to the valve.
    Type: Application
    Filed: March 12, 2012
    Publication date: July 25, 2013
    Applicant: Iseki & Co., Ltd.
    Inventor: Kiyofumi SAKURAHARA
  • Publication number: 20130160593
    Abstract: A working vehicle attachable an implement includes a steering wheel which is disposed in a rear side of an engine hood covering an engine compartment for accommodating an engine, a control panel which is disposed near the steering wheel, a joy-stick control lever which is disposed in a rear side of the engine hood and in a lateral side of the steering wheel, a valve which is disposed in the rear side of the engine hood and is connected to the joy-stick control lever, a top cover which is disposed below the control panel, a bottom cover which includes a portion standing up from a floor surface and is a front portion of a floor part, and a middle cover which is disposed between the top cover and the bottom cover, wherein the valve is covered by the top cover and the middle cover, and the middle cover is detachable.
    Type: Application
    Filed: March 12, 2012
    Publication date: June 27, 2013
    Applicant: Iseki & Co., Ltd.
    Inventors: Kiyofumi Sakurahara, Koji Furukawa
  • Patent number: 8220582
    Abstract: A working vehicle includes a HST, forward and reverse pedals, a brake pedal, an intermediate link mechanism (ILM) operating in linkage with operation of the forward or reverse (F or R) pedal, a single shift rod receiving the operation from the ILM and rotating a trunnion shaft of the HST to a forward drive side and to a reverse drive side, a neutral return mechanism (NRM) having a cam plate rotating integrally with the trunnion shaft and forming a curved surface portion, a roller moving in contact with the curved surface portion, a lower return arm configured integrally with a return arm that includes the roller, and a first spring acting in a direction of returning the trunnion shaft to a neutral position, a lower return arm onto which the first spring is latched, a F pedal onto which is latched a second spring acting in a direction of returning the trunnion shaft to the neutral position when depression operation of the F or R pedals is not being performed, an ILM including a damper applying a resistance to
    Type: Grant
    Filed: May 24, 2010
    Date of Patent: July 17, 2012
    Assignee: Iseki & Co., Ltd.
    Inventors: Mitsuo Toyokawa, Shingo Fujioka, Yusuke Murakami, Tomoaki Watanabe, Masahiko Yoshino, Hiroto Mori, Noboru Sagawa, Kiyofumi Sakurahara
  • Publication number: 20110203868
    Abstract: A working vehicle includes a HST, forward and reverse pedals, a brake pedal, an intermediate link mechanism (ILM) operating in linkage with operation of the forward or reverse (F or R) pedal, a single shift rod receiving the operation from the ILM and rotating a trunnion shaft of the HST to a forward drive side and to a reverse drive side, a neutral return mechanism (NRM) having a cam plate rotating integrally with the trunnion shaft and forming a curved surface portion, a roller moving in contact with the curved surface portion, a lower return arm configured integrally with a return arm that includes the roller, and a first spring acting in a direction of returning the trunnion shaft to a neutral position, a lower return arm onto which the first spring is latched, a F pedal onto which is latched a second spring acting in a direction of returning the trunnion shaft to the neutral position when depression operation of the F or R pedals is not being performed, an ILM including a damper applying a resistance to
    Type: Application
    Filed: May 24, 2010
    Publication date: August 25, 2011
    Applicant: ISEKI & CO., LTD.
    Inventors: Mitsuo TOYOKAWA, Shingo FUJIOKA, Yusuke MURAKAMI, Tomoaki WATANABE, Masahiko YOSHINO, Hiroto MORI, Noboru SAGAWA, Kiyofumi SAKURAHARA
  • Patent number: D720369
    Type: Grant
    Filed: June 27, 2014
    Date of Patent: December 30, 2014
    Assignee: Iseki & Co., Ltd.
    Inventors: Koji Furukawa, Tatsuya Shimoyama, Kiyofumi Sakurahara, Kenro Kinoshita, Naohiro Ito, Hiroshi Kamoda, Kanako Mizuniwa, Masami Kinoshita
  • Patent number: D720371
    Type: Grant
    Filed: June 27, 2014
    Date of Patent: December 30, 2014
    Assignee: Iseki & Co., Ltd.
    Inventors: Koji Furukawa, Tatsuya Shimoyama, Kiyofumi Sakurahara, Kenro Kinoshita, Naohiro Ito, Hiroshi Kamoda, Kanako Mizuniwa, Kazunori Fukuchi, Masami Kinoshita, Yoji Fujinaga