Patents by Inventor Toshio Saitou

Toshio Saitou 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: 20240144744
    Abstract: An aspect of the present invention relates to a control device for an exhaust gas post-treatment device that includes a filter that collects a particulate substance in exhaust gas of an engine and an oxidation catalyst provided upstream of the filter, and that is configured to regenerate the filter by an action of the oxidation catalyst, the control device including a notification unit configured to, in a case in which forced regeneration for forcibly increasing a temperature of the exhaust gas is carried out, when the number of times it is estimated that the temperature of the exhaust gas is lower than a light-off temperature for a period of time equal to or longer than a prescribed period of time exceeds a prescribed threshold, issue a notification indicating that there is a problem in an operation state of the engine.
    Type: Application
    Filed: March 4, 2022
    Publication date: May 2, 2024
    Applicant: Komatsu Ltd.
    Inventors: Yoshitoshi Nagado, Shinichi Saitou, Toshio Kanda
  • Patent number: 7744505
    Abstract: A hydraulic pressure control device is provided that that controls hydraulic pressure of a clutch supplying torque to a continuously variable transmission while the vehicle is stopped and in a running range. The hydraulic pressure control device has an control section that estimates a clutch engagement hydraulic pressure for changing the clutch from an engaged state to a disengaged state based the hydraulic fluid pressure acting on the clutch during the stopping of the rotational movement of a primary pulley of the continuously variable transmission, and then controls regulation of the hydraulic pressure to the clutch from an engaged state to a disengaged state, when the vehicle is stopped and in the running range, so that the torque from the engine does not rotate a secondary pulley of the continuously variable transmission.
    Type: Grant
    Filed: November 16, 2007
    Date of Patent: June 29, 2010
    Assignee: JATCO Ltd
    Inventors: Hiroyasu Tanaka, Hideshi Wakayama, Shoichi Sekiguchi, Katsumi Doihara, Hideaki Sasaki, Azusa Shimoda, Naohiro Hoshi, Tatsuya Ozone, Toshio Saitou, Koji Dohi
  • Publication number: 20080269012
    Abstract: A hydraulic pressure control device is provided that that controls hydraulic pressure of a clutch supplying torque to a continuously variable transmission while the vehicle is stopped and in a running range. The hydraulic pressure control device has an control section that estimates a clutch engagement hydraulic pressure for the clutch based on initially rotational movement of a primary pulley of the continuously variable transmission, and then controls regulation of the hydraulic pressure to the clutch to a designated pressure that is no greater than the clutch engagement hydraulic pressure, when the vehicle is stopped and in the running range, so that the torque from the engine does not rotate a secondary pulley of the continuously variable transmission.
    Type: Application
    Filed: October 23, 2007
    Publication date: October 30, 2008
    Applicant: JATCO LTD.
    Inventors: Hiroyasu TANAKA, Hideshi WAKAYAMA, Shoichi SEKIGUCHI, Yasuhiro TANI, Shinichi ARISAWA, Toshio SAITOU, Takashi FUKAGAWA, Takuichiro INOUE
  • Publication number: 20080125284
    Abstract: A hydraulic pressure control device is provided that that controls hydraulic pressure of a clutch supplying torque to a continuously variable transmission while the vehicle is stopped and in a running range. The hydraulic pressure control device has an control section that estimates a clutch engagement hydraulic pressure for changing the clutch from an engaged state to a disengaged state based the hydraulic fluid pressure acting on the clutch during the stopping of the rotational movement of a primary pulley of the continuously variable transmission, and then controls regulation of the hydraulic pressure to the clutch from an engaged state to a disengaged state, when the vehicle is stopped and in the running range, so that the torque from the engine does not rotate a secondary pulley of the continuously variable transmission.
    Type: Application
    Filed: November 16, 2007
    Publication date: May 29, 2008
    Applicant: JATCO LTD
    Inventors: Hiroyasu TANAKA, Hideshi WAKAYAMA, Shoichi SEKIGUCHI, Katsumi DOIHARA, Hideaki SASAKI, Azusa SHIMODA, Naohiro HOSHI, Tatsuya OZONE, Toshio SAITOU, Koji DOHI
  • Patent number: 5090551
    Abstract: A conveyer for transporting people includes a transmitting mechanism for transmitting the drive force of a treadboard driving section for moving treadboards to a drive mechanism of a handrail driving section for moving handrails. The transmitting mechanism includes a transmission shaft on which first and second junction sprockets are fixed, a first drive chain stretched between the treadboard driving section and the first junction sprocket, and a second drive chain stretched between the second junction sprocket and the drive mechanism. A detecting device is arranged to detect a twist of the transmission shaft attributable to the difference between loads acting on the first and second junction sprockets. The device detects a change in the moving sped of the handrail in accordance with the detected twist of the shaft.
    Type: Grant
    Filed: February 20, 1991
    Date of Patent: February 25, 1992
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Yoshihito Yasuhara, Toshio Saitou