Patents by Inventor Akifumi Nishino

Akifumi Nishino 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).

  • Publication number: 20060150757
    Abstract: A tractor with a PTO apparatus, comprises: a plurality of wheels; a vehicle body supported by the plurality of wheels; an engine supported on the vehicle body; a rear PTO shaft disposed at a rear of the vehicle body for transmitting power from the engine; a mid-PTO shaft disposed under the vehicle body for transmitting power from the engine; a PTO mode selecting device having a first position for transmitting power only to the rear PTO shaft, a second position for transmitting power to both the rear PTO shaft and said mid-PTO shaft, and a third position for transmitting power only to said mid-PTO shaft; a PTO clutch disposed on a transmission line upstream of said PTO mode selecting device and switchable between an engaged position and a disengaged position; and a restricting mechanism for preventing a change operation of said PTO mode selecting device when said PTO clutch is in the engaged position, and permitting the change operation of said PTO mode selecting device when said PTO clutch is in the disengage
    Type: Application
    Filed: June 24, 2005
    Publication date: July 13, 2006
    Applicant: Kubota Corporation
    Inventors: Akifumi Nishino, Ryuji Kitagawa, Kiyokazu Nakanishi, Tsukasa Wada, Kenzo Ushiro
  • Publication number: 20060081084
    Abstract: A working vehicle with a speed maintaining apparatus, comprises: a plurality of wheels including at least one driven wheel; a vehicle body supported by the plurality of wheels; an engine supported by the vehicle body; a stepless transmission driven by the engine and capable of changing speed of power to the driven wheel; a neutral return device for biasing the stepless transmission toward a neutral position; a change speed pedal operatively connected to the stepless transmission; a speed maintaining device for maintaining the stepless transmission in a desired speed position; a speed setting lever movable to a retreat position and to positions in a forward speed range for setting the stepless transmission to the desired speed position in which the stepless transmission is maintained by the speed maintaining device; a relay rocking element connected to the stepless transmission through an auxiliary rocking element pivotable relative to the relay rocking element; and a control member provided in the speed maint
    Type: Application
    Filed: August 22, 2005
    Publication date: April 20, 2006
    Applicant: Kubota Corporation
    Inventors: Akifumi Nishino, Yutaka Inubushi
  • Publication number: 20050204843
    Abstract: A transmission system for a tractor, adapted for transmitting power of an engine to axles through a traveling transmission line and also to an externally mounted utility implement through a PTO transmission line. The system includes a clutch housing disposed rearwardly of the engine, a base transmission case disposed and spaced rearwardly of the clutch housing, the clutch housing and the base transmission case being connected together via a housing frame. The base transmission case includes an intermediate partitioning wall for partitioning an inner space of the case in a fore and aft direction to create a front space having a front end opening and a rear space having a rear end opening. A differential case is connected to the rear end opening of the base transmission case. The front space includes a receiving portion for the traveling transmission line and a receiving portion for the PTO transmission line, the traveling and PTO transmission lines being disposed parallel with each other.
    Type: Application
    Filed: September 8, 2004
    Publication date: September 22, 2005
    Applicant: KUBOTA CORPORATION
    Inventors: Akifumi Nishino, Hajime Shikiya, Kiyoshige Maezawa, Shigeo Shoen, Kenzo Ushiro, Keita Ono
  • Patent number: 6879261
    Abstract: An operator presence sensing apparatus for a seat of a vehicle includes a base member (7, 8) for supporting the seat (6), and a relay member (9) extending vertically between the base member and the seat. The seat is oscillatable about a pivot axis (X) extending in a transverse direction in the base member. The relay member is pivotably supported at one end thereof by the pivot axis and at the other end by the base member through a cushion spring (10). A seat lift-up spring (12) is disposed between an underside of the seat and the base member for receiving part of the weight of the seat. The seat unoccupied by the operator is oscillated to a floating position lifted from the relay member by the lift-up spring.
    Type: Grant
    Filed: March 20, 2003
    Date of Patent: April 12, 2005
    Assignee: Kubota Corporation
    Inventors: Akifumi Nishino, Ryuji Kitagawa, Kenzo Ushiro, Hiroki Fukudome
  • Publication number: 20040090338
    Abstract: An operator presence sensing apparatus for a seat of a vehicle includes a base member (7, 8) for supporting the seat (6), and a relay member (9) extending vertically between the base member and the seat. The seat is oscillatable about a pivot axis (X) extending in a transverse direction in the base member. The relay member is pivotably supported at one end thereof by the pivot axis and at the other end by the base member through a cushion spring (10). A seat lift-up spring (12) is disposed between an underside of the seat and the base member for receiving part of the weight of the seat. The seat unoccupied by the operator is oscillated to a floating position lifted from the relay member by the lift-up spring.
    Type: Application
    Filed: March 20, 2003
    Publication date: May 13, 2004
    Applicant: KUBOTA CORPORATION
    Inventors: Akifumi Nishino, Ryuji Kitagawa, Kenzo Ushiro, Hiroki Fukudome
  • Patent number: 6237957
    Abstract: A tractor having an engine disposed in a front position, a transmission case disposed in a rear position, and a main frame for interconnecting the engine and transmission case. Reinforcing frames are attached to opposite side surfaces of the main frame. The reinforcing frames are shaped to accommodate a mid-mount mower.
    Type: Grant
    Filed: October 19, 1998
    Date of Patent: May 29, 2001
    Assignee: Kubota Corporation
    Inventors: Mitsuhiro Takekata, Akifumi Nishino, Kiyokazu Nakanishi, Toshiyuki Hamamoto