Patents by Inventor Eiji Ando

Eiji Ando 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: 11230457
    Abstract: In an elevator apparatus, an activating lever that activates an emergency safety gear is disposed on the emergency safety gear. A speed governor mechanism has: a speed governor sheave; a tensioning sheave; and a speed governor rope that is wound onto the speed governor sheave and the tensioning sheave, and that is connected to the activating lever. A resistance applying mechanism is disposed on the car. The resistance applying mechanism applies a resisting force during ascent of the car against movement of the activating lever in a direction that activates the emergency safety gear.
    Type: Grant
    Filed: December 1, 2015
    Date of Patent: January 25, 2022
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Naohiro Shiraishi, Seiji Watanabe, Kotaro Fukui, Eiji Ando, Shiro Ikeda
  • Patent number: 11142429
    Abstract: An emergency stop device for an elevator car, including: a link configured to be rotated about a rotary shaft installed on a car by movement of a speed governor rope; a rail stopper provided to one end of the link; a roller guide mounted to the car; and an elastic member provided between another end of the link and the car. The elastic member causes a spring reaction force to be reduced to bring the rail stopper into abutment against the roller guide even when the rail stopper is displaced by the link, when the displacement exceeds a preset threshold value due to further displacement by the link along with the movement of the speed governor rope at a time of occurrence of rope breakage.
    Type: Grant
    Filed: November 26, 2015
    Date of Patent: October 12, 2021
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Naohiro Shiraishi, Seiji Watanabe, Kotaro Fukui, Eiji Ando
  • Publication number: 20200268304
    Abstract: A cognitive function determination method includes applying a load including a sensory stimulus (5a) or tasks with different degrees of difficulty a plurality of times (S1), measuring a change in brain activity of a subject (P) when the load is applied and acquiring measurement data (S2), and determining a degree of cognitive function of the subject (P) (S3).
    Type: Application
    Filed: July 7, 2017
    Publication date: August 27, 2020
    Applicants: SHIMADZU CORPORATION, Medical Corporation Sochikai, MCBI INC.
    Inventors: Satoshi YOMOTA, Shin NAKAMURA, Eiji ANDO, Takashi ASADA, Hiroko NAKATA, Kazukiko UCHIDA, Yoshinori NISHIMURA
  • Patent number: 10526170
    Abstract: In an elevator apparatus, an abnormal acceleration detecting mechanism detects abnormal acceleration of an ascending/descending body due to breakage of a suspending body, and activates a safety device. The abnormal acceleration detecting mechanism includes: an inertia sheave that is rotatable around a sheave shaft independently from an interlocking sheave; a pawl that is connected to the interlocking sheave and the inertia sheave, and that is displaceable between a normal position, and an activating position that displaces a movable shoe to a gripping position; and an elastic body that holds the pawl in the normal position by applying an initial pressure, and that also rotates the inertia sheave together with the interlocking sheave.
    Type: Grant
    Filed: November 19, 2014
    Date of Patent: January 7, 2020
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Naohiro Shiraishi, Eiji Ando, Seiji Watanabe, Kotaro Fukui
  • Publication number: 20180319628
    Abstract: An emergency stop device for an elevator car, including: a link configured to be rotated about a rotary shaft installed on a car by movement of a speed governor rope; a rail stopper provided to one end of the link; a roller guide mounted to the car; and an elastic member provided between another end of the link and the car. The elastic member causes a spring reaction force to be reduced to bring the rail stopper into abutment against the roller guide even when the rail stopper is displaced by the link, when the displacement exceeds a preset threshold value due to further displacement by the link along with the movement of the speed governor rope at a time of occurrence of rope breakage.
    Type: Application
    Filed: November 26, 2015
    Publication date: November 8, 2018
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Naohiro SHIRAISHI, Seiji WATANABE, Kotaro FUKUI, Eiji ANDO
  • Publication number: 20180319626
    Abstract: In an elevator apparatus, an abnormal acceleration detecting mechanism detects abnormal acceleration of an ascending/descending body due to breakage of a suspending body, and activates a safety device. The abnormal acceleration detecting mechanism includes: an inertia sheave that is rotatable around a sheave shaft independently from an interlocking sheave; a pawl that is connected to the interlocking sheave and the inertia sheave, and that is displaceable between a normal position, and an activating position that displaces a movable shoe to a gripping position; and an elastic body that holds the pawl in the normal position by applying an initial pressure, and that also rotates the inertia sheave together with the interlocking sheave.
    Type: Application
    Filed: November 19, 2014
    Publication date: November 8, 2018
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Naohiro SHIRAISHI, Eiji ANDO, Seiji WATANABE, Kotaro FUKUI
  • Publication number: 20180297814
    Abstract: In an elevator apparatus, an activating lever that activates an emergency safety gear is disposed on the emergency safety gear. A speed governor mechanism has: a speed governor sheave; a tensioning sheave; and a speed governor rope that is wound onto the speed governor sheave and the tensioning sheave, and that is connected to the activating lever. A resistance applying mechanism is disposed on the car. The resistance applying mechanism applies a resisting force during ascent of the car against movement of the activating lever in a direction that activates the emergency safety gear.
    Type: Application
    Filed: December 1, 2015
    Publication date: October 18, 2018
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Naohiro SHIRAISHI, Seiji WATANABE, Kotaro FUKUI, Eiji ANDO, Shiro IKEDA
  • Patent number: 9708158
    Abstract: In a multi-car elevator, if two vertically adjacent cars among the cars are designated first and second cars, then: a zone that is a distance in which the second car can be stopped in response to an abnormality, and into which the first car is not permitted to enter is set as an exclusion zone of the second car; a position before which it is necessary for the first car to stop is set as a stopping limit position of the first car; and a plurality of threshold values that progressively detect the abnormal approach are set so as to enable the first car to decelerate and stop before the stopping limit position of the first car.
    Type: Grant
    Filed: April 16, 2012
    Date of Patent: July 18, 2017
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Masayuki Kakio, Takuo Kugiya, Kiyoshi Funai, Eiji Ando
  • Publication number: 20150291390
    Abstract: In a multi-car elevator, if two vertically adjacent cars among the cars are designated first and second cars, then: a zone that is a distance in which the second car can be stopped in response to an abnormality, and into which the first car is not permitted to enter is set as an exclusion zone of the second car; a position before which it is necessary for the first car to stop is set as a stopping limit position of the first car; and a plurality of threshold values that progressively detect the abnormal approach are set so as to enable the first car to decelerate and stop before the stopping limit position of the first car.
    Type: Application
    Filed: April 16, 2012
    Publication date: October 15, 2015
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Masayuki Kakio, Takuo Kugiya, Kiyoshi Funai, Eiji Ando
  • Patent number: 9018332
    Abstract: A methacryloxy group- or acryloxy group-containing polyorganosiloxane in which a methacryloxy group or acryloxy group is bonded to a silicon atom in the polyorganosiloxane across a long-chain alkylene group or poly(alkyleneoxy)-long chain-alkylene group having 11 to 20 carbon atoms. A method of producing this methacryloxy group- or acryloxy group-containing polyorganosiloxane, in which a silicon-bonded hydrogen atom-containing polyorganosiloxane is addition reacted in the presence of a hydrosilylation reaction catalyst with a 1-alkenyl methacrylate or a 1-alkenyl acrylate or a 1-alkenyloxypolyalkylene glycol methacrylate or a 1-alkenyloxypolyalkylene glycol acrylate.
    Type: Grant
    Filed: January 14, 2009
    Date of Patent: April 28, 2015
    Assignee: Dow Corning Toray Company, Ltd.
    Inventors: Tadashi Okawa, Eiji Ando
  • Publication number: 20130001020
    Abstract: In a safety system for an elevator, slip detection means detects a slip between a drive sheave and a main rope. A safety gear is mounted to a car, the safety gear being electrically operated by an actuator to cause the car to make an emergency stop regardless of whether a running direction of the car is upward or downward. A safety gear controller cuts power supply to a hoisting machine motor and causes the safety gear to make a braking operation upon detection of the slip between the drive sheave and the main rope by the slip detection means.
    Type: Application
    Filed: September 11, 2012
    Publication date: January 3, 2013
    Applicant: Mitsubishi Electric Corporation
    Inventors: Hiroshi Kigawa, Naoyuki Maruyama, Eiji Ando
  • Patent number: 8336677
    Abstract: In a safety system for an elevator, slip detection means detects a slip between a drive sheave and a main rope. A safety gear is mounted to a car, the safety gear being electrically operated by an actuator to cause the car to make an emergency stop regardless of whether a running direction of the car is upward or downward. A safety gear controller cuts power supply to a hoisting machine motor and causes the safety gear to make a braking operation upon detection of the slip between the drive sheave and the main rope by the slip detection means.
    Type: Grant
    Filed: April 5, 2012
    Date of Patent: December 25, 2012
    Assignee: Mitsubishi Electric Corporation
    Inventors: Hiroshi Kigawa, Naoyuki Maruyama, Eiji Ando
  • Patent number: 8297413
    Abstract: In a safety system for an elevator, a safety gear is mounted to a car, the safety gear being electrically operated by an actuator to cause the car to make an emergency stop regardless of whether a running direction of the car is upward or downward. A safety gear controller cuts power supply to a hoisting machine motor and causes the safety gear to make a braking operation upon detection of the slip between the drive sheave and the main rope based on a drive sheave acceleration exceeding a predetermined value.
    Type: Grant
    Filed: June 21, 2007
    Date of Patent: October 30, 2012
    Assignee: Mitsubishi Electric Corporation
    Inventors: Hiroshi Kigawa, Naoyuki Maruyama, Eiji Ando
  • Patent number: 8261886
    Abstract: In a safety system for an elevator, slip detection means detects a slip between a drive sheave and a main rope. A safety gear is mounted to a car, the safety gear being electrically operated by an actuator to cause the car to make an emergency stop regardless of whether a running direction of the car is upward or downward. A safety gear controller cuts power supply to a hoisting machine motor and causes the safety gear to make a braking operation upon detection of the slip between the drive sheave and the main rope by the slip detection means.
    Type: Grant
    Filed: April 5, 2012
    Date of Patent: September 11, 2012
    Assignee: Mitsubishi Electric Corporation
    Inventors: Hiroshi Kigawa, Naoyuki Maruyama, Eiji Ando
  • Publication number: 20120193174
    Abstract: In a safety system for an elevator, slip detection means detects a slip between a drive sheave and a main rope. A safety gear is mounted to a car, the safety gear being electrically operated by an actuator to cause the car to make an emergency stop regardless of whether a running direction of the car is upward or downward. A safety gear controller cuts power supply to a hoisting machine motor and causes the safety gear to make a braking operation upon detection of the slip between the drive sheave and the main rope by the slip detection means.
    Type: Application
    Filed: April 5, 2012
    Publication date: August 2, 2012
    Applicant: Mitsubishi Electric Corporation
    Inventors: Hiroshi KIGAWA, Naoyuki MARUYAMA, Eiji ANDO
  • Publication number: 20120186916
    Abstract: In a safety system for an elevator, slip detection means detects a slip between a drive sheave and a main rope. A safety gear is mounted to a car, the safety gear being electrically operated by an actuator to cause the car to make an emergency stop regardless of whether a running direction of the car is upward or downward. A safety gear controller cuts power supply to a hoisting machine motor and causes the safety gear to make a braking operation upon detection of the slip between the drive sheave and the main rope by the slip detection means.
    Type: Application
    Filed: April 5, 2012
    Publication date: July 26, 2012
    Applicant: Mitsubishi Electric Corporation
    Inventors: Hiroshi Kigawa, Naoyuki Maruyama, Eiji Ando
  • Patent number: 8186484
    Abstract: An elevator system in which a controller monitors whether or not a speed of an ascending/descending body reaches a preset overspeed. At a time of maintenance work, a stopper is interposed between a buffer and the ascending/descending body to limit a lowered position of the ascending/descending body. A stopper detector detects installation of the stopper onto at least one of the buffer and the ascending/descending body. When the stopper is detected by the stopper detector, the controller lowers a set value of the overspeed.
    Type: Grant
    Filed: September 20, 2011
    Date of Patent: May 29, 2012
    Assignee: Mitsubishi Electric Corporation
    Inventors: Takaharu Ueda, Eiji Ando
  • Patent number: 8177034
    Abstract: An elevator system in which a controller monitors whether or not a speed of an ascending/descending body reaches a preset overspeed. At a time of maintenance work, a stopper is interposed between a buffer and the ascending/descending body to limit a lowered position of the ascending/descending body. A stopper detector detects installation of the stopper onto at least one of the buffer and the ascending/descending body. When the stopper is detected by the stopper detector, the controller lowers a set value of the overspeed.
    Type: Grant
    Filed: November 20, 2006
    Date of Patent: May 15, 2012
    Assignee: Mitsubishi Electric Corporation
    Inventors: Takaharu Ueda, Eiji Ando
  • Patent number: 8177035
    Abstract: An elevator system in which a controller monitors whether or not a speed of an ascending/descending body reaches a preset overspeed. At a time of maintenance work, a stopper is interposed between a buffer and the ascending/descending body to limit a lowered position of the ascending/descending body. A stopper detector detects installation of the stopper onto at least one of the buffer and the ascending/descending body. When the stopper is detected by the stopper detector, the controller lowers a set value of the overspeed.
    Type: Grant
    Filed: September 20, 2011
    Date of Patent: May 15, 2012
    Assignee: Mitsubishi Electric Corporation
    Inventors: Takaharu Ueda, Eiji Ando
  • Publication number: 20120006628
    Abstract: An elevator system in which a controller monitors whether or not a speed of an ascending/descending body reaches a preset overspeed. At a time of maintenance work, a stopper is interposed between a buffer and the ascending/descending body to limit a lowered position of the ascending/descending body. Stopper detection means detects installation of the stopper onto at least one of the buffer and the ascending/descending body. When the stopper is detected by the stopper detection means, the controller lowers a set value of the overspeed.
    Type: Application
    Filed: September 20, 2011
    Publication date: January 12, 2012
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Takaharu Ueda, Eiji Ando