Patents by Inventor Daisuke Yokohagi

Daisuke Yokohagi 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: 20220345688
    Abstract: A vehicle monitoring system includes: a monitoring device that monitors whether a person is present or not in a cabin of a vehicle capable of autonomous driving; and a control device that determines whether the monitoring device is experiencing a malfunction, and outputs a result of the determination.
    Type: Application
    Filed: April 20, 2022
    Publication date: October 27, 2022
    Applicant: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Takuma INUI, Tomohiro KOGANEI, Kenji MATSUOKA, Daisuke YOKOHAGI, Daiki OKUMURA
  • Patent number: 7599407
    Abstract: A laser controlling method can generate laser of stable laser pulses, and eliminate useless time from a machining procedure. The method uses a gain medium and a Q-switch, and emits exciting light to the gain medium, thereby setting the Q-switch in a continuous oscillation mode, and prepares a given Q-switch pause time before a laser pulse is generated. When the continuous oscillation is kept going longer than a given time, the control method sets a Q-switch pause time for obtaining a first laser pulse to be different from a Q-switch pause time for obtaining a second laser pulse and onward.
    Type: Grant
    Filed: March 2, 2007
    Date of Patent: October 6, 2009
    Assignee: Panasonic Corporation
    Inventors: Katsuichi Ukita, Hidehiko Karasaki, Daisuke Yokohagi
  • Patent number: 7471704
    Abstract: A laser controlling method can generate laser of stable laser pulses, and eliminate useless time from a machining procedure. The method uses a gain medium and a Q-switch, and emits exciting light to the gain medium, thereby setting the Q-switch in a continuous oscillation mode, and prepares a given Q-switch pause time before a laser pulse is generated. When the continuous oscillation is kept going longer than a given time, the control method sets a Q-switch pause time for obtaining a first laser pulse to be different from a Q-switch pause time for obtaining a second laser pulse and onward.
    Type: Grant
    Filed: March 5, 2007
    Date of Patent: December 30, 2008
    Assignee: Panasonic Corporation
    Inventors: Katsuichi Ukita, Hidehiko Karasaki, Daisuke Yokohagi
  • Patent number: 7254147
    Abstract: A laser controlling method can generate laser of stable laser pulses, and eliminate useless time from a machining procedure. The method uses a gain medium and a Q-switch, and emits exciting light to the gain medium, thereby setting the Q-switch in a continuous oscillation mode, and prepares a given Q-switch pause time before a laser pulse is generated. When the continuous oscillation is kept going longer than a given time, the control method sets a Q-switch pause time for obtaining a first laser pulse to be different from a Q-switch pause time for obtaining a second laser pulse and onward.
    Type: Grant
    Filed: September 26, 2002
    Date of Patent: August 7, 2007
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Katsuichi Ukita, Hidehiko Karasaki, Daisuke Yokohagi
  • Publication number: 20070153842
    Abstract: A laser controlling method can generate laser of stable laser pulses, and eliminate useless time from a machining procedure. The method uses a gain medium and a Q-switch, and emits exciting light to the gain medium, thereby setting the Q-switch in a continuous oscillation mode, and prepares a given Q-switch pause time before a laser pulse is generated. When the continuous oscillation is kept going longer than a given time, the control method sets a Q-switch pause time for obtaining a first laser pulse to be different from a Q-switch pause time for obtaining a second laser pulse and onward.
    Type: Application
    Filed: March 2, 2007
    Publication date: July 5, 2007
    Applicant: Matsushita Electric Industrial Co., Ltd.
    Inventors: Katsuichi Ukita, Hidehiko Karasaki, Daisuke Yokohagi
  • Publication number: 20070153843
    Abstract: A laser controlling method can generate laser of stable laser pulses, and eliminate useless time from a machining procedure. The method uses a gain medium and a Q-switch, and emits exciting light to the gain medium, thereby setting the Q-switch in a continuous oscillation mode, and prepares a given Q-switch pause time before a laser pulse is generated. When the continuous oscillation is kept going longer than a given time, the control method sets a Q-switch pause time for obtaining a first laser pulse to be different from a Q-switch pause time for obtaining a second laser pulse and onward.
    Type: Application
    Filed: March 5, 2007
    Publication date: July 5, 2007
    Applicant: Matsushita Electric Industrial Co., Ltd.
    Inventors: Katsuichi Ukita, Hidehiko Karasaki, Daisuke Yokohagi
  • Patent number: 7005605
    Abstract: A laser machining apparatus machines a workpiece at uniform intensity by converting a CO2 laser beam to uniform intensity using an intensity-converting element and a phase-matching element. The optical transmission system is configured such that the starting point of the laser beam pointing vector and the exit face of the intensity-converting element are mutually conjugated with respect to the optical transmission system. This structure offers stable machining by ensuring that the laser beam always enters the intensity-converting element at its center, even if the pointing vector of the laser beam shifts.
    Type: Grant
    Filed: June 27, 2003
    Date of Patent: February 28, 2006
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Koki Ichihashi, Daisuke Yokohagi, Daiji Narita, Katsuichi Ukita, Hidehiko Karasaki
  • Publication number: 20040101002
    Abstract: A laser controlling method can generate laser of stable laser pulses, and eliminate useless time from a machining procedure. The method uses a gain medium and a Q-switch, and emits exciting light to the gain medium, thereby setting the Q-switch in a continuous oscillation mode, and prepares a given Q-switch pause time before a laser pulse is generated. When the continuous oscillation is kept going longer than a given time, the control method sets a Q-switch pause time for obtaining a first laser pulse to be different from a Q-switch pause time for obtaining a second laser pulse and onward.
    Type: Application
    Filed: August 22, 2003
    Publication date: May 27, 2004
    Inventors: Katsuichi Ukita, Hidehiko Karasaki, Daisuke Yokohagi
  • Publication number: 20040084607
    Abstract: A laser machining apparatus machines a workpiece at uniform intensity by converting a CO2 laser beam to uniform intensity using an intensity-converting element and a phase-matching element. The optical transmission system is configured such that the starting point of the laser beam pointing vector and the exit face of the intensity-converting element are mutually conjugated with respect to the optical transmission system. This structure offers stable machining by ensuring that the laser beam always enters the intensity-converting element at its center, even if the pointing vector of the laser beam shifts.
    Type: Application
    Filed: June 27, 2003
    Publication date: May 6, 2004
    Inventors: Koki Ichihashi, Daisuke Yokohagi, Daiji Narita, Katsuichi Ukita, Hidehiko Karasaki