Patents by Inventor Kazumi Nakaju

Kazumi Nakaju 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: 20250036220
    Abstract: A touch pad, on which a pointing operation is performed by a hand, includes: a sensor board configured to recognize a touch position by a hand; an outer frame configured to be fixed to the sensor board; an arm portion configured to be disposed on an inner side of the outer frame; a switch configured to be provided between one end of the arm portion and the sensor board; and a shaft support portion configured to support the arm portion to be capable of being inclined in a pitch direction at an intermediate portion. The other end of the arm portion is displaced in a lifting/lowering direction together with the sensor board, and is supported to be relatively displaceable in the other two directions.
    Type: Application
    Filed: July 2, 2024
    Publication date: January 30, 2025
    Applicant: Lenovo (Singapore) Pte. Ltd.
    Inventors: Akihisa Okuni, Issei Kurosawa, Kazumi Nakaju
  • Publication number: 20250036218
    Abstract: A touch pad, on which a pointing operation is performed by a hand, includes: a sensor board configured to recognize a touch position by a hand; an outer frame configured to be fixed to the sensor board; a cross-shaped inner frame configured to be disposed on an inner side of the outer frame, in which one ends of four arm portions are connected and the other ends extend toward four locations of the outer frame; a switch configured to be provided between the one end of the arm portion and the sensor board; and a shaft support portion configured to support each of the four arm portions to be capable of being inclined in a pitch direction at an intermediate portion. The other end is displaced in a lifting/lowering direction together with the sensor board, and is supported to be relatively displaceable in the other two directions.
    Type: Application
    Filed: July 2, 2024
    Publication date: January 30, 2025
    Applicant: Lenovo (Singapore) Pte. Ltd.
    Inventors: Akihisa Okuni, Issei Kurosawa, Kazumi Nakaju
  • Publication number: 20250036219
    Abstract: A touch pad, on which a pointing operation is performed by a hand, includes: a sensor board configured to recognize a touch position by a hand; an outer frame configured to be fixed to the sensor board; an arm portion configured to be disposed on an inner side of the outer frame; a switch configured to be provided between one end of the arm portion and the sensor board; a shaft support portion configured to support the arm portion to be capable of being inclined in a pitch direction at an intermediate portion; and an elastic body configured to bias the sensor board upward with respect to a base. The other end of the arm portion is supported to be displaced in a lifting/lowering direction together with the sensor board.
    Type: Application
    Filed: July 2, 2024
    Publication date: January 30, 2025
    Applicant: Lenovo (Singapore) Pte. Ltd.
    Inventors: Akihisa Okuni, Issei Kurosawa, Kazumi Nakaju
  • Patent number: 11043341
    Abstract: Apparatuses and systems that include a keyboard baseplate including a concave structure with a logic substrate housed therein are disclosed. One apparatus includes a keyboard baseplate including a concave structure formed thereon and a lower surface having a side. The apparatus further includes a logic substrate provided on the side of the lower surface of the baseplate and housed within the concave structure. The logic substrate is configured to receive an analog signal generated by a sensor and convert the analog signal to a digital signal.
    Type: Grant
    Filed: April 20, 2020
    Date of Patent: June 22, 2021
    Assignee: Lenovo (Singapore) PTE. LTD.
    Inventors: Masahiro Kitamura, Satoshi Douzono, Takanori Koike, Kazumi Nakaju
  • Patent number: 10969831
    Abstract: A keyboard device is provided with a base plate configured by arranging a plurality of plate members, a plurality of keytops vertically movably supported on the upper surface side of the base plate, a frame attached to the upper surface side of the base plate and having a plurality of hole portions into which the keytops are vertically movably inserted, and a fastening tool provided at a position overlapping with a plate boundary portion formed between the facing end surfaces of the plate members adjacent to each other and simultaneously fastening the adjacent plate members to the frame.
    Type: Grant
    Filed: September 3, 2019
    Date of Patent: April 6, 2021
    Assignee: LENOVO (SINGAPORE) PTE. LTD.
    Inventors: Masahiro Kitamura, Satoshi Douzono, Kazumi Nakaju, Takanori Koike
  • Patent number: 10903027
    Abstract: A keyboard device is provided with a base plate, a plurality of key tops, a membrane sheet, and a frame. The frame has a frame portion interposed between the key tops adjacent to each other and partitions each key top in a vertically movable state by the formation of a gap between the side surface of the frame portion and the side surface of the key top. The base plate has a notch portion at a position at least overlapping with a portion under the gap.
    Type: Grant
    Filed: August 5, 2019
    Date of Patent: January 26, 2021
    Assignee: LENOVO (SINGAPORE) PTE. LTD.
    Inventors: Masahiro Kitamura, Satoshi Douzono, Kazumi Nakaju, Takanori Koike
  • Publication number: 20200387198
    Abstract: A keyboard device is provided with a base plate configured by arranging a plurality of plate members, a plurality of keytops vertically movably supported on the upper surface side of the base plate, a frame attached to the upper surface side of the base plate and having a plurality of hole portions into which the keytops are vertically movably inserted, and a fastening tool provided at a position overlapping with a plate boundary portion formed between the facing end surfaces of the plate members adjacent to each other and simultaneously fastening the adjacent plate members to the frame.
    Type: Application
    Filed: September 3, 2019
    Publication date: December 10, 2020
    Applicant: LENOVO (SINGAPORE) PTE. LTD.
    Inventors: Masahiro Kitamura, Satoshi Douzono, Kazumi Nakaju, Takanori Koike
  • Publication number: 20200388450
    Abstract: A keyboard device is provided with a base plate, a plurality of key tops, a membrane sheet, and a frame. The frame has a frame portion interposed between the key tops adjacent to each other and partitions each key top in a vertically movable state by the formation of a gap between the side surface of the frame portion and the side surface of the key top. The base plate has a notch portion at a position at least overlapping with a portion under the gap.
    Type: Application
    Filed: August 5, 2019
    Publication date: December 10, 2020
    Applicant: LENOVO (SINGAPORE) PTE. LTD.
    Inventors: Masahiro Kitamura, Satoshi Douzono, Kazumi Nakaju, Takanori Koike
  • Patent number: 10832879
    Abstract: An input device includes a base plate and a push button rotatably provided on a top surface of the base plate. The base plate has a bearing part protruding from the top surface. The push button has an operation surface part receiving a push down operation and a positioning part rotatably supported by the bearing part. The positioning part positions the push button in the plate thickness direction of the bearing part by an abutting part abutting on a first face of the bearing part and a pushing part resiliently biased toward and pushing a second face of the bearing part.
    Type: Grant
    Filed: September 3, 2019
    Date of Patent: November 10, 2020
    Assignee: LENOVO (SINGAPORE) PTE. LTD.
    Inventors: Masahiro Kitamura, Satoshi Douzono, Takanori Koike, Kazumi Nakaju
  • Publication number: 20200343056
    Abstract: Apparatuses and systems that include a keyboard baseplate including a concave structure with a logic substrate housed therein are disclosed. One apparatus includes a keyboard baseplate including a concave structure formed thereon and a lower surface having a side. The apparatus further includes a logic substrate provided on the side of the lower surface of the baseplate and housed within the concave structure. The logic substrate is configured to receive an analog signal generated by a sensor and convert the analog signal to a digital signal.
    Type: Application
    Filed: April 20, 2020
    Publication date: October 29, 2020
    Inventors: Masahiro Kitamura, Satoshi Douzono, Takanori Koike, Kazumi Nakaju