Patents by Inventor Kimio Kumada

Kimio Kumada 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: 10751757
    Abstract: A vibration generation device is provided with a housing, a vibration target component provided to be movable relatively to the housing, an actuator which has a metal base portion, a metal movable portion, a beltlike shape memory alloy disposed between the base portion and the movable portion and in which, when the shape memory alloy receives current application to be changed so that the outer shape becomes small, the movable portion is pushed out in one direction of separating from the base portion in a state where the base portion abuts on a first wall surface of the housing, a resin holder component fixed to the vibration target component and abutting on a pushing surface facing the one direction of the movable portion, and an elastic member elastically energizing the movable portion in a direction opposite to the one direction.
    Type: Grant
    Filed: January 8, 2019
    Date of Patent: August 25, 2020
    Assignee: LENOVO (SINGAPORE) PTE. LTD.
    Inventors: Fumio Tamura, Kimio Kumada, Kazuyuki Kubota
  • Publication number: 20200130015
    Abstract: A vibration generation device is provided with a housing, a vibration target component provided to be movable relatively to the housing, an actuator which has a metal base portion, a metal movable portion, a beltlike shape memory alloy disposed between the base portion and the movable portion and in which, when the shape memory alloy receives current application to be changed so that the outer shape becomes small, the movable portion is pushed out in one direction of separating from the base portion in a state where the base portion abuts on a first wall surface of the housing, a resin holder component fixed to the vibration target component and abutting on a pushing surface facing the one direction of the movable portion, and an elastic member elastically energizing the movable portion in a direction opposite to the one direction.
    Type: Application
    Filed: January 8, 2019
    Publication date: April 30, 2020
    Applicant: LENOVO (SINGAPORE) PTE. LTD.
    Inventors: Fumio Tamura, Kimio Kumada, Kazuyuki Kubota
  • Patent number: 10146266
    Abstract: The present invention provides an electronic apparatus for reducing the load on mechanism parts and thickness, including a main unit chassis having keytops; a display chassis pivotably connected with the main unit chassis by hinge mechanisms; rubber domes urging the keytops in a direction to cause the keytops to project from an upper surface; an X slider sliding in the main unit chassis in synchronization with the pivoting movements of the main unit chassis and the display chassis; a key depressing mechanism and a link mechanism, causing the keytops to retract from the upper surface when the X slider slides in one direction, and causing the keytops to project from the upper surface when the X slider slides in the opposite direction; and an auxiliary elastic member urging the X slider in a direction to cause the X slider to slide in the one direction.
    Type: Grant
    Filed: August 17, 2017
    Date of Patent: December 4, 2018
    Assignee: LENOVO (SINGAPORE) PTE. LTD.
    Inventors: Yoshiyuki Shibayama, Hiroaki Agata, Shigeki Mori, Kimio Kumada, Takane Fujino
  • Publication number: 20180074557
    Abstract: The present invention provides an electronic apparatus for reducing the load on mechanism parts and thickness, including a main unit chassis having keytops; a display chassis pivotably connected with the main unit chassis by hinge mechanisms; rubber domes urging the keytops in a direction to cause the keytops to project from an upper surface; an X slider sliding in the main unit chassis in synchronization with the pivoting movements of the main unit chassis and the display chassis; a key depressing mechanism and a link mechanism, causing the keytops to retract from the upper surface when the X slider slides in one direction, and causing the keytops to project from the upper surface when the X slider slides in the opposite direction; and an auxiliary elastic member urging the X slider in a direction to cause the X slider to slide in the one direction.
    Type: Application
    Filed: August 17, 2017
    Publication date: March 15, 2018
    Applicant: LENOVO (SINGAPORE) PTE. LTD.
    Inventors: Yoshiyuki Shibayama, Hiroaki Agata, Shigeki Mori, Kimio Kumada, Takane Fujino
  • Patent number: 8199491
    Abstract: A drainage system is provided for draining liquid accidentally spilled on a casing having a plurality of pushbuttons on a surface of the casing. An electronic apparatus may comprise a casing and a drainage system. The drainage system may be connected with the casing. The drainage system may include a liquid collecting basin, a drainage exit, and a liquid passageway. The liquid passageway may have a capillary surface and may lead the liquid from the liquid collecting basin to the drainage exit.
    Type: Grant
    Filed: July 16, 2010
    Date of Patent: June 12, 2012
    Assignee: Lenovo (Singapore) Pte. Ltd.
    Inventors: Yoshiharu Uchiyama, Akinori Uchino, Tsutomu Chonan, Hiroyuki Noguchi, Kimio Kumada
  • Publication number: 20120012204
    Abstract: A drainage system is provided for draining liquid accidentally spilled on a casing having a plurality of pushbuttons on a surface of the casing. An electronic apparatus may comprise a casing and a drainage system. The drainage system may be connected with the casing. The drainage system may include a liquid collecting basin, a drainage exit, and a liquid passageway. The liquid passageway may have a capillary surface and may lead the liquid from the liquid collecting basin to the drainage exit.
    Type: Application
    Filed: July 16, 2010
    Publication date: January 19, 2012
    Inventors: Yoshiharu Uchiyama, Akinori Uchino, Tsutomu Chonan, Hiroyuki Noguchi, Kimio Kumada
  • Publication number: 20090179537
    Abstract: A portable computer is disclosed. The portable computer includes a display casing and a system casing. The display casing is configured to accommodate a display. The system casing is configured to accommodate electronic devices. A keyboard assembly is disposed on a surface of the system casing. A palm rest is provided to cover a portion of the surface of the system casing. An intermediate member having design parts covering a peripheral portion of the keyboard assembly and a support portion disposed under the palm rest.
    Type: Application
    Filed: January 5, 2009
    Publication date: July 16, 2009
    Inventors: Takayuki Morino, Kimio Kumada, Tetsuya Ohtani, Kenshin Yonemochi