Patents by Inventor Koji Iwaki

Koji Iwaki 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: 20250031707
    Abstract: A poultry processing apparatus according to an embodiment includes: a scraper part for separating a meat part around scapula bones of a poultry carcass held by a holder from the scapula bones; and an incision blade with a cutting edge for incising a skin between the scapula bones of the meat part that rides up on the scraper part. The cutting edge extends in a direction away from the holder as the cutting edge extends upstream in a traveling direction in which the scraper part travels toward the holder in separating the meat part from the scapula bones.
    Type: Application
    Filed: July 20, 2023
    Publication date: January 30, 2025
    Inventors: Noriyuki TAKAHASHI, Koji TAKANASHI, Sayaka IWAKI
  • Publication number: 20250020196
    Abstract: In a transmission of the present invention, a transmission case has a peripheral wall with an opening sized to allow an HST to be other than a main plate of the HST. The HST has the main plate and a sub-plate sandwiching members out of a center section, a pump-side holder and a motor-side holder that face to each other with the pump main body and the motor main body being arranged between the members. The sub-plate has an engaging portion, and the transmission case has a mounting seat with which the engaging portion is engaged in a slidable manner so that the HST is guided until an installation position.
    Type: Application
    Filed: September 26, 2024
    Publication date: January 16, 2025
    Inventors: Kazuhiro OWADA, Koji IWAKI, Kengo SASAHARA
  • Publication number: 20240344601
    Abstract: An HST of the present invention includes a main plate and a sub-plate supporting a center section, a pump-side swash plate holder and a motor-side swash plate holder by their inner surfaces facing each other. The main plate is provided with an extended region that extends farther outward in a planar direction of the main plate than an installation space of the center section, the pump-side swash plate holder and the motor-side swash plate holder and than the sub-plate as viewed along a direction in which the main plate and the sub-plate face each other.
    Type: Application
    Filed: March 15, 2024
    Publication date: October 17, 2024
    Inventors: Kazuhiro OWADA, Koji IWAKI, Kengo SASAHARA
  • Publication number: 20240328496
    Abstract: [Problem] To reduce a length in an axial direction of an entire structure including an input gear train for shifting and transmitting an input power to a pump shaft and an output gear train for shifting and transmitting an HST output from a motor shaft to a planetary gear mechanism. [Solution] An HMT structure of the present invention includes an input shaft disposed in parallel to a pump shaft and a motor shaft with one side in an axial direction operatively connected to a drive source and the other side in the axial direction extending from an HST pump to the other side in the axial direction, an HST-input gear train for operatively transmitting a rotational power from the input shaft to the pump shaft, and an HST-output gear train for operatively transmitting an HST output from the motor shaft to a planetary gear mechanism, and the HST-input gear train and the HST-output gear train are disposed between the HST pump and the HST motor, and the planetary gear mechanism in the axial direction.
    Type: Application
    Filed: March 28, 2024
    Publication date: October 3, 2024
    Inventors: Koji IWAKI, Tomoyuki TSUJI, Ryo MOTOOKA, Terunobu YOSHIOKA, Kazuhiro OWADA
  • Patent number: 12072008
    Abstract: In a transmission structure according to this invention, speed change ratios of input side first and second transmission mechanisms are set so that the rotational speed of a planetary second element is the same when an HST output is set to a second HST speed in either a first transmission state or a second transmission state, and the rotational speed of a planetary first element is the same when the HST output is set to the second HST speed in either the second transmission state or the first transmission state. The speed change ratios of an output side first and second transmission mechanisms are set so that the rotational speed developed in a speed change output shaft when the HST output is set to the second HST speed is the same in either the first or second transmission states.
    Type: Grant
    Filed: August 9, 2023
    Date of Patent: August 27, 2024
    Assignee: Kanzaki Kokyukoki Mfg. Co., LTD.
    Inventors: Koji Iwaki, Kazuhiro Owada, Kengo Sasahara
  • Publication number: 20240208322
    Abstract: [Problem] To easily downsize an electric motor, to suppress a manufacturing cost, and to improve mountability on a hybrid-type traveling vehicle. [Solution] A traveling vehicle of the present invention is configured such that an internal combustion engine, a main drive wheel, and a sub drive wheel are supported on a traveling machine body, and the internal combustion engine drives the main drive wheel through a traveling transmission mechanism. An electric motor and a planetary gear mechanism are provided inside an axle case which supports the sub drive wheel. In three elements of the planetary gear mechanism, a first element is interlockingly connected to the electric motor, a second element is interlockingly connected to the sub drive wheel, and a third element is interlockingly connected to an output side of the traveling transmission mechanism.
    Type: Application
    Filed: December 12, 2023
    Publication date: June 27, 2024
    Inventors: Koji IWAKI, Ryo MOTOOKA, Terunobu YOSHIOKA
  • Patent number: 12000467
    Abstract: A pump operation piston biased by a neutral spring mechanism and a larger volume operation spring biased by a larger volume operation spring in a larger volume direction operatively move pump and motor volume adjusting members, respectively, is provided. A first pressure control valve commonly controls supply-discharge of pressure oil that presses the pump operation piston in a first slide direction and the motor operation piston in a smaller volume direction. A second pressure control valve controls supply-discharge of pressure oil that presses the pump operation piston in a second slide direction. Biasing forces of the neutral spring mechanism and the larger volume operation spring are so set that, after the pump operation piston is moved in the first slide direction by a predetermined distance, the motor operation piston starts moving.
    Type: Grant
    Filed: August 11, 2022
    Date of Patent: June 4, 2024
    Assignee: Kanzaki Kokyukoki Mfg. Co., LTD
    Inventors: Koji Iwaki, Tomoyuki Tsuji
  • Patent number: 11933391
    Abstract: An HST of the present invention includes a main plate and a sub-plate supporting a center section, a pump-side swash plate holder and a motor-side swash plate holder by their inner surfaces facing each other. The main plate is provided with an extended region that extends farther outward in a planar direction of the main plate than an installation space of the center section, the pump-side swash plate holder and the motor-side swash plate holder and than the sub-plate as viewed along a direction in which the main plate and the sub-plate face each other.
    Type: Grant
    Filed: June 4, 2020
    Date of Patent: March 19, 2024
    Assignee: Kanzaki Kokyukoki Mfg. Co., LTD.
    Inventors: Kazuhiro Owada, Koji Iwaki, Kengo Sasahara
  • Patent number: 11841067
    Abstract: A transmission structure of the present invention changes capacity of pump body so that vehicle speed detected by vehicle speed sensor increases and reduces according to speed-increasing and speed-reducing operations of speed-change operating member while fixing capacity of motor body at a low-speed motor capacity when the vehicle speed is equal to or lower than a switching speed that is realized by setting motor body to the low-speed motor capacity and setting the pump body to a predetermined pump switching capacity, and changes capacity of motor body so that vehicle speed increases and reduces in accordance with speed-increasing and speed-reducing operations of speed-change operating member while fixing capacity of the pump body at the pump switching capacity when vehicle speed is higher than the switching speed.
    Type: Grant
    Filed: August 6, 2020
    Date of Patent: December 12, 2023
    Assignee: Kanzaki Kokyukoki Mfg. Co., LTD
    Inventors: Kazuhiro Owada, Koji Iwaki
  • Publication number: 20230383828
    Abstract: In a transmission structure according to this invention, speed change ratios of input side first and second transmission mechanisms are set so that the rotational speed of a planetary second element is the same when an HST output is set to a second HST speed in either a first transmission state or a second transmission state, and the rotational speed of a planetary first element is the same when the HST output is set to the second HST speed in either the second transmission state or the first transmission state. The speed change ratios of an output side first and second transmission mechanisms are set so that the rotational speed developed in a speed change output shaft when the HST output is set to the second HST speed is the same in either the first or second transmission states.
    Type: Application
    Filed: August 9, 2023
    Publication date: November 30, 2023
    Inventors: Koji IWAKI, Kazuhiro OWADA, Kengo SASAHARA
  • Patent number: 11796041
    Abstract: [Problem] To provide a planetary gear assembly that, while increasing the speed change range of a power-split stepless transmission formed in cooperation a stepless transmission, can reduce the overall size of the power-split stepless transmission. [Solution] The planetary gear assembly according to the present invention includes: a cylindrical transmission shaft, an output shaft inserted into the transmission shaft, first and second planetary gear mechanisms each having a first sun gear supported to the transmission shaft without a relative rotation about an axial line, first and second clutch mechanisms that are placed coaxially with the transmission shaft, and that engage and disengage a power transmission of power to standard rotary speed power input units of the first and second planetary gear mechanisms, and a connection member extrapolated to the transmission shaft with a free relative rotation about an axial line.
    Type: Grant
    Filed: February 14, 2023
    Date of Patent: October 24, 2023
    Assignee: KANZAKI KOKYUKOKI MFG. CO., LTD.
    Inventors: Terunobu Yoshioka, Koji Iwaki
  • Patent number: 11767904
    Abstract: In a transmission structure according to this invention, speed change ratios of input side first and second transmission mechanisms are set so that the rotational speed of a planetary second element is the same when an HST output is set to a second HST speed in either a first transmission state or a second transmission state, and the rotational speed of a planetary first element is the same when the HST output is set to the second HST speed in either the second transmission state or the first transmission state. The speed change ratios of an output side first and second transmission mechanisms are set so that the rotational speed developed in a speed change output shaft when the HST output is set to the second HST speed is the same in either the first or second transmission states.
    Type: Grant
    Filed: January 13, 2023
    Date of Patent: September 26, 2023
    Assignee: Kanzaki Kokyukoki Mfg. Co., Ltd.
    Inventors: Koji Iwaki, Kazuhiro Owada, Kengo Sasahara
  • Publication number: 20230258254
    Abstract: [Problem] To provide a planetary gear assembly that, while increasing the speed change range of a power-split stepless transmission formed in cooperation a stepless transmission, can reduce the overall size of the power-split stepless transmission. [Solution] The planetary gear assembly according to the present invention includes: a cylindrical transmission shaft, an output shaft inserted into the transmission shaft, first and second planetary gear mechanisms each having a first sun gear supported to the transmission shaft without a relative rotation about an axial line, first and second clutch mechanisms that are placed coaxially with the transmission shaft, and that engage and disengage a power transmission of power to standard rotary speed power input units of the first and second planetary gear mechanisms, and a connection member extrapolated to the transmission shaft with a free relative rotation about an axial line.
    Type: Application
    Filed: February 14, 2023
    Publication date: August 17, 2023
    Inventors: Terunobu YOSHIOKA, Koji IWAKI
  • Publication number: 20230220910
    Abstract: A transmission structure of the present invention changes capacity of pump body so that vehicle speed detected by vehicle speed sensor increases and reduces according to speed-increasing and speed-reducing operations of speed-change operating member while fixing capacity of motor body at a low-speed motor capacity when the vehicle speed is equal to or lower than a switching speed that is realized by setting motor body to the low-speed motor capacity and setting the pump body to a predetermined pump switching capacity, and changes capacity of motor body so that vehicle speed increases and reduces in accordance with speed-increasing and speed-reducing operations of speed-change operating member while fixing capacity of the pump body at the pump switching capacity when vehicle speed is higher than the switching speed.
    Type: Application
    Filed: August 6, 2020
    Publication date: July 13, 2023
    Inventors: Kazuhiro OWADA, Koji IWAKI
  • Patent number: 11668381
    Abstract: A transmission structure of the present invention causes, during a period from a time point when a rotational speed of a drive rotational power reaches a predetermined first/second speed stage shift-up start speed until a first/second speed stage shift-up end time point, one of an input-side clutch mechanism pair and an output-side clutch mechanism pair to be in a double transmitting state, and causes, in the double transmitting state, a first clutch mechanism and a second clutch mechanism of the other one of the input-side clutch mechanism pair and the output-side clutch mechanism pair to be shifted to a disengagement sate and an engagement state, respectively, while having frictional plate slid.
    Type: Grant
    Filed: July 18, 2022
    Date of Patent: June 6, 2023
    Assignee: Kanzaki Kokyukoki Mfg. Co., Ltd.
    Inventors: Kazuhiro Owada, Koji Iwaki, Ryo Motooka, Kohei Ogura, Takumi Takahashi
  • Publication number: 20230160460
    Abstract: In a transmission structure according to this invention, speed change ratios of input side first and second transmission mechanisms are set so that the rotational speed of a planetary second element is the same when an HST output is set to a second HST speed in either a first transmission state or a second transmission state, and the rotational speed of a planetary first element is the same when the HST output is set to the second HST speed in either the second transmission state or the first transmission state. The speed change ratios of an output side first and second transmission mechanisms are set so that the rotational speed developed in a speed change output shaft when the HST output is set to the second HST speed is the same in either the first or second transmission states.
    Type: Application
    Filed: January 13, 2023
    Publication date: May 25, 2023
    Inventors: Koji IWAKI, Kazuhiro OWADA, Kengo SASAHARA
  • Patent number: 11644091
    Abstract: A hydromechanical continuously variable speed transmission is provided. The hydromechanical continuously variable speed transmission can include: the HST 10 in which the planetary gear mechanism 11 is housed in the planetary gear support case 71 mounted on a face of the center section 35 to form the HMT unit 100, the face being on the side opposite to the side on which the HST case 23 is mounted, and the HMT unit 100 is further provided with the housing mounting face 35d for fixing the HMT unit 100 to the housing 91 of the traveling power transmission mechanism 89, the housing mounting face 35d being provided on the center section 35 so as to surround the outer circumference of the mounting face 71a on which the planetary gear support case 71 is mounted.
    Type: Grant
    Filed: March 31, 2022
    Date of Patent: May 9, 2023
    Assignee: Kanzaki Kokyukoki Mfg. Co., Ltd.
    Inventors: Koji Iwaki, Tomoyuki Tsuji, Ryo Motooka
  • Publication number: 20230049519
    Abstract: A pump operation piston biased by a neutral spring mechanism and a larger volume operation spring biased by a larger volume operation spring in a larger volume direction operatively move pump and motor volume adjusting members, respectively, is provided. A first pressure control valve commonly controls supply-discharge of pressure oil that presses the pump operation piston in a first slide direction and the motor operation piston in a smaller volume direction. A second pressure control valve controls supply-discharge of pressure oil that presses the pump operation piston in a second slide direction. Biasing forces of the neutral spring mechanism and the larger volume operation spring are so set that, after the pump operation piston is moved in the first slide direction by a predetermined distance, the motor operation piston starts moving.
    Type: Application
    Filed: August 11, 2022
    Publication date: February 16, 2023
    Inventors: Koji IWAKI, Tomoyuki TSUJI
  • Patent number: 11572939
    Abstract: In a transmission structure according to this invention, speed change ratios of input side first and second transmission mechanisms are set so that the rotational speed of a planetary second element is the same when an HST output is set to a second HST speed in either a first transmission state or a second transmission state, and the rotational speed of a planetary first element is the same when the HST output is set to the second HST speed in either the second transmission state or the first transmission state. The speed change ratios of an output side first and second transmission mechanisms are set so that the rotational speed developed in a speed change output shaft when the HST output is set to the second HST speed is the same in either the first or second transmission states.
    Type: Grant
    Filed: November 15, 2021
    Date of Patent: February 7, 2023
    Assignee: Kanzaki Kokyukoki Mfg. Co., Ltd.
    Inventors: Koji Iwaki, Kazuhiro Owada, Kengo Sasahara
  • Publication number: 20230014393
    Abstract: A transmission structure of the present invention causes, during a period from a time point when a rotational speed of a drive rotational power reaches a predetermined first/second speed stage shift-up start speed until a first/second speed stage shift-up end time point, one of an input-side clutch mechanism pair and an output-side clutch mechanism pair to be in a double transmitting state, and causes, in the double transmitting state, a first clutch mechanism and a second clutch mechanism of the other one of the input-side clutch mechanism pair and the output-side clutch mechanism pair to be shifted to a disengagement sate and an engagement state, respectively, while having frictional plate slid.
    Type: Application
    Filed: July 18, 2022
    Publication date: January 19, 2023
    Inventors: Kazuhiro OWADA, Koji IWAKI, Ryo MOTOOKA, Kohei OGURA, Takumi TAKAHASHI