Patents by Inventor Atsushi Katsurayama

Atsushi Katsurayama 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: 10060165
    Abstract: A door lock device has a high degree of freedom in the disposition of an open link for switching between a locked state and an unlocked state and has low operational resistance when being put into the locked state. When there is a malfunction in which the open link is jammed by the dust and therefore does not move from a lock waiting position to an unlock waiting position even when an unlock action is performed, when an outside handle interlock lever is turned, a sliding-contact tilt guide provided on a support body slides and makes sliding-contact with the open link and forcibly tilts the open link, and as a result, it becomes unnecessary to increase an energizing force of a torsion coil spring as a precaution against such malfunction. This makes it possible to reduce the operational resistance when the door lock device is put into the locked state.
    Type: Grant
    Filed: July 24, 2013
    Date of Patent: August 28, 2018
    Assignee: AISIN SEIKI KABUSHIKI KAISHA
    Inventors: Atsushi Yamaguchi, Takeshi Tada, Yasuhiko Sono, Masashi Taniyama, Yusuke Kojima, Atsushi Katsurayama, Takashi Nishio, Kazunori Kojima, Masanari Iwata, Yusuke Yamada
  • Publication number: 20150191945
    Abstract: A door lock device has a high degree of freedom in the disposition of an open link for switching between a locked state and an unlocked state and has low operational resistance when being put into the locked state. When there is a malfunction in which the open link is jammed by dust and therefore does not move from a lock waiting position to an unlock waiting position even when an unlock action is performed, when an outside handle interlock lever is turned, a sliding-contact tilt guide provided on a support body slides and makes sliding-contact with the open link and forcibly tilts the open link, and as a result, it becomes unnecessary to increase an energizing force of a torsion coil spring as a precaution against such malfunction. This makes it possible to reduce the operational resistance when the door lock device is put into the locked state.
    Type: Application
    Filed: July 24, 2013
    Publication date: July 9, 2015
    Inventors: Atsushi Yamaguchi, Takeshi Tada, Yasuhiko Sono, Masashi Taniyama, Yusuke Kojima, Atsushi Katsurayama, Takashi Nishio, Kazunori Kojima, Masanari Iwata, Yusuke Yamada
  • Patent number: 7798539
    Abstract: A door lock device for a vehicle includes an operating mechanism being selectable of a locked state where a latched state, between a latching member and a latched member, being unreleasable and an unlocked state where the latched state being releasable, an active lever being rotatable between a locked position and an unlocked position thereof, and an open link disabling a transmission of an operational force of a handle to the latched member under the locked state and allowing a transmission of the operational force of the handle to the latched member under the unlocked state. The active lever, provided with an elongated bore, is supported by a housing which houses the operating mechanism to be rotatable. The open link is operatively connected to the handle to be slidably supported by the housing and is provided with an engaging portion which engages with the elongated bore to be slidable therein.
    Type: Grant
    Filed: September 19, 2006
    Date of Patent: September 21, 2010
    Assignees: Aisin Seiki Kabushiki Kaisha, Aisin Kiko Co., Ltd.
    Inventors: Shigeru Hayakawa, Ryujiro Akizuki, Atsushi Katsurayama, Yasuhiko Sono, Satoshi Suzuki, Eiji Torii, Toshihiro Kitamura
  • Publication number: 20080023971
    Abstract: A door-lock child protecting device capable of preventing a child in a vehicle from opening a door is reduced in size. This device includes an open member (1) being movable in a direction of releasing a door lock, an inside lever (2) for being actuated by an input from an inside handle, a movable operating member (3) for moving the open member (1) in the direction of releasing the door lock, a child protecting member (4) capable of being switched by an operation of an operating portion (41) between a set position to execute child protection and an unset position not to execute child protection, and a base (5). The child protecting member (4) is rectilinearly movable between the set position (S1) and the unset position (S2) and inhibited from being rotated with respect to the base (5).
    Type: Application
    Filed: November 16, 2005
    Publication date: January 31, 2008
    Applicants: AISIN SEIKI KABUSHIKI KAISHA, AISIN KIKO CO., LTD.
    Inventors: Ryujiro Akizuki, Satoshi Suzuki, Eiji Torii, Yasuhiko Sono, Atsushi Katsurayama, Shigeru Hayakawa, Katsutoshi Fukunaga, Toshihiro Kitamura
  • Publication number: 20070075552
    Abstract: A door lock device for a vehicle includes an operating mechanism being selectable of a locked state where a latched state, between a latching member and a latched member, being unreleasable and an unlocked state where the latched state being releasable, an active lever being rotatable between a locked position and an unlocked position thereof, and an open link disabling a transmission of an operational force of a handle to the latched member under the locked state and allowing a transmission of the operational force of the handle to the latched member under the unlocked state. The active lever, provided with an elongated bore, is supported by a housing which houses the operating mechanism to be rotatable. The open link is operatively connected to the handle to be slidably supported by the housing and is provided with an engaging portion which engages with the elongated bore to be slidable therein.
    Type: Application
    Filed: September 19, 2006
    Publication date: April 5, 2007
    Applicants: AISIN SEIKI KABUSHIKI KAISHA, AISIN KIKO CO., LTD.
    Inventors: Shigeru Hayakawa, Ryujiro Akizuki, Atsushi Katsurayama, Yasuhiko Sono, Satoshi Suzuki, Eiji Torii, Toshihiro Kitamura