Patents by Inventor Mitsuo Horiuchi

Mitsuo Horiuchi 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: 20160139637
    Abstract: A coupling structure capable of coupling a metal plate-like member and a resin chassis member with high assembling efficiency and sufficient coupling strength while preventing damage to parts is disclosed. The coupling structure is a structure for coupling a housing plate as a resin chassis member to a base plate as a metal plate-like member in a direction to overlap the housing plate with the base plate. The housing plate includes a latch having a pair of arm members extending along a direction parallel with a coupling face to the base plate and whose distal ends are spaced out from each other, and the base plate includes a coupling hook formed upright toward the side of the housing plate and engaged between the pair of arm members.
    Type: Application
    Filed: November 17, 2015
    Publication date: May 19, 2016
    Inventors: TOSHIHISA DOI, MITSUO HORIUCHI, EIJI SHINOHARA
  • Publication number: 20150185779
    Abstract: Stabilizing systems are disclosed herein that can reduce the amount of noise produced by an input device and can contribute to a stable feeling in operation even with a short pushing stroke. In some embodiments, a stabilizer bar is coupled to a base plate by hooks with semi-circular cut-outs that allow the stabilizer bar to slide and tilt relative to the base plate. The stabilizer bar is also coupled to an input element by hooks having semi-circular cut-outs and a spring tab that allow the stabilizer bar to rotate relative to the input element. Bias forces generated by the spring tabs and the tension in the stabilizer bar maintain the bar in firm engagement with the hooks, preventing collisions and clattering noises during operation.
    Type: Application
    Filed: December 26, 2013
    Publication date: July 2, 2015
    Applicant: LENOVO (SINGAPORE) PTE. LTD.
    Inventors: Toshihisa Doi, Mitsuo Horiuchi, Eiji Shinohara
  • Patent number: 8931969
    Abstract: The invention provides large, vertically elongated keyboard keys strategically chosen and positioned above the alphanumeric section of a standard keyboard (e.g. a laptop PC keyboard) to provide a more ergonomic keyboard arrangement. The invention provides for keys that appropriately address the needs of touch typists when striking frequently used keys located above the alphanumeric section of the keyboard.
    Type: Grant
    Filed: March 27, 2009
    Date of Patent: January 13, 2015
    Assignee: Lenovo (Singapore) Pte. Ltd.
    Inventors: Aaron M. Stewart, Hiroki Hirano, David W. Hill, Mitsuo Horiuchi, Tomoyuki Takahashi, Kazuo Nakada, Go Osaki
  • Patent number: 8491322
    Abstract: For connecting devices, an electromagnetic interference (EMI) connecting portion includes a conductor connected to a first EMI shield. An electrostatic discharge (ESD) contact portion electrically connects to a second EMI shield through a high-impedance element. The ESD contact portion electrically connects the EMI connecting portion to the second EMI shield through the high-impedance element as the ESD contact portion initially contacts the EMI connecting portion during hot docking. The ESD contact portion subsequently moves in response to the initial contact to contact a low-impedance element electrically connected to the second EMI shield and connect the EMI connecting portion to the second EMI shield through the low-impedance element.
    Type: Grant
    Filed: August 1, 2012
    Date of Patent: July 23, 2013
    Assignee: Lenovo (Singapore) Pte. Ltd.
    Inventors: Mitsuo Horiuchi, Fumio Tamura, Hiroaki Agata
  • Publication number: 20120295459
    Abstract: For connecting devices, an electromagnetic interference (EMI) connecting portion includes a conductor connected to a first EMI shield. An electrostatic discharge (ESD) contact portion electrically connects to a second EMI shield through a high-impedance element. The ESD contact portion electrically connects the EMI connecting portion to the second EMI shield through the high-impedance element as the ESD contact portion initially contacts the EMI connecting portion during hot docking. The ESD contact portion subsequently moves in response to the initial contact to contact a low-impedance element electrically connected to the second EMI shield and connect the EMI connecting portion to the second EMI shield through the low-impedance element.
    Type: Application
    Filed: August 1, 2012
    Publication date: November 22, 2012
    Applicant: LENOVO (SINGAPORE) PTE, LTD.
    Inventors: Mitsuo Horiuchi, Fumio Tamura, Hiroaki Agata
  • Patent number: 8246367
    Abstract: A connecting structure reduces noise effects on an electronic device when hot docking the electronic device to mitigate against malfunctions. When a first electronic device having a first EMI shield is docked with a second electronic device having a second EMI shield, an ESD contact portion, which is connected to the second EMI shield and has higher in impedance than an EMI connecting portion, comes in contact with the first EMI shield earlier than the EMI connecting portion. Electrostatic charge carried on the first EMI shield moves slowly to the second EMI shield due to the high impedance of the ESD contact portion.
    Type: Grant
    Filed: February 8, 2011
    Date of Patent: August 21, 2012
    Assignee: Lenovo (Singapore) Pte Ltd.
    Inventors: Mitsuo Horiuchi, Fumio Tamura, Hiroaki Agata
  • Patent number: 8030889
    Abstract: A docking device for receiving a portable computer is disclosed. The docking device includes a device housing and a charging connector that is provided on a side surface of the device housing and is connected to a battery connector of a battery pack in order to charge the battery pack. The charging connector is connectable to the battery connector in a state where the battery pack and the device housing are disposed on the same plane. When the charging connector and the battery connector are in a connected state and the device housing is being moved to a position within a predetermined height from the plane, the connection state between the charging connector and the battery connector is maintained. When the device housing is being moved to a position that exceeds the predetermined height from the plane, the battery connector will be separated from the charging connector due to the weight of the battery pack.
    Type: Grant
    Filed: April 7, 2009
    Date of Patent: October 4, 2011
    Assignee: Lenovo (Singapore) Pte. Ltd.
    Inventors: Fumio Tamura, Hiroaki Agata, Mitsuo Horiuchi
  • Publication number: 20110128663
    Abstract: A connecting structure reduces noise effects on an electronic device when hot docking the electronic device to mitigate against malfunctions. When a first electronic device having a first EMI shield is docked with a second electronic device having a second EMI shield, an ESD contact portion, which is connected to the second EMI shield and has higher in impedance than an EMI connecting portion, comes in contact with the first EMI shield earlier than the EMI connecting portion. Electrostatic charge carried on the first EMI shield moves slowly to the second EMI shield due to the high impedance of the ESD contact portion.
    Type: Application
    Filed: February 8, 2011
    Publication date: June 2, 2011
    Applicant: LENOVO (Singapore) PTE, LTD.
    Inventors: Mitsuo Horiuchi, Fumio Tamura, Hiroaki Agata
  • Patent number: 7905734
    Abstract: A connecting structure reduces noise effects on an electronic device when hot docking the electronic device to mitigate against malfunctions. When a first electronic device having a first EMI shield is docked with a second electronic device having a second EMI shield, an ESD contact portion, which is connected to the second EMI shield and has higher in impedance than an EMI connecting portion, comes in contact with the first EMI shield earlier than the EMI connecting portion. Electrostatic charge carried on the first EMI shield moves slowly to the second EMI shield due to the high impedance of the ESD contact portion.
    Type: Grant
    Filed: February 1, 2008
    Date of Patent: March 15, 2011
    Assignee: Lenovo (Singapore) Pte. Ltd.
    Inventors: Mitsuo Horiuchi, Fumio Tamura, Hiroaki Agata
  • Publication number: 20100265652
    Abstract: A docking device for portable computers is disclosed. The docking device includes a casing, a connector affixed to the casing, and a support member arranged on the casing. The support member is capable of being moved up and down via an elastic member disposed therebetween.
    Type: Application
    Filed: March 17, 2010
    Publication date: October 21, 2010
    Inventors: Hiroaki Agata, Eiji Shinohara, Fumio Tamura, Mitsuo Horiuchi
  • Patent number: 7817093
    Abstract: An apparatus has an antenna distance setting mechanism that sets a distance between a cosmetic cover and a radio antenna. An upper housing and a radio antenna, which has a ground and a radiating element and is movably attached to the upper housing, are covered by a cosmetic cover formed of a dielectric material. An antenna distance setting mechanism includes a radio antenna supporting member, elastic members, and protrusions. The radio antenna-supporting member is movably attached to the upper housing. When the cosmetic cover is attached to the upper housing, an inner wall of the cosmetic cover pushes the ends of the protrusions against an elastic force of the elastic members to set the distance between the radiating element and the inner wall of the cosmetic cover to a predetermined distance.
    Type: Grant
    Filed: March 28, 2008
    Date of Patent: October 19, 2010
    Assignee: Lenovo (Singapore) Pte. Ltd.
    Inventors: Hiroaki Agata, Mitsuo Horiuchi, Hirohide Komiyama, Shigeki Mori, Tetsuya Ohtani, Osamu Yamamoto
  • Publication number: 20100247213
    Abstract: The invention provides large, vertically elongated keyboard keys strategically chosen and positioned above the alphanumeric section of a standard keyboard (e.g. a laptop PC keyboard) to provide a more ergonomic keyboard arrangement. The invention provides for keys that appropriately address the needs of touch typists when striking frequently used keys located above the alphanumeric section of the keyboard.
    Type: Application
    Filed: March 27, 2009
    Publication date: September 30, 2010
    Applicant: Lenovo (Singapore) Pte. Ltd.
    Inventors: Aaron M. Stewart, Hiroki Hirano, David W. Hill, Mitsuo Horiuchi, Tomoyuki Takahashi, Kazuo Nakada, Go Osaki
  • Patent number: 7755884
    Abstract: An apparatus for reducing weight and thickness of portable computers is disclosed. The apparatus includes a lower housing, an upper housing and a cosmetic cover. The lower housing is configured to accommodate electronic elements therein. The upper housing, which has an opening inside, includes a periphery connected to the lower housing and a main bridge structure connected from one edge of the periphery to another edge of the periphery for providing structural support to the upper housing in the opening and for accommodating a display module therein. The cosmetic cover is configured to cover the upper housing.
    Type: Grant
    Filed: January 21, 2008
    Date of Patent: July 13, 2010
    Assignee: Lenovo (Singapore) Pte. Ltd.
    Inventors: Mitsuo Horiuchi, Shigeki Mori, Hiroaki Agata, Yasushi Honda, Tetsuya Ohtani
  • Patent number: 7635081
    Abstract: A portable information terminal includes a housing reinforced to maintain its strength while the while the portable information terminal is reduced in weight and thickness.
    Type: Grant
    Filed: September 24, 2001
    Date of Patent: December 22, 2009
    Assignee: Lenovo Singapore Pte. Ltd.
    Inventors: Mitsuo Horiuchi, Fusanobu Nakamura
  • Publication number: 20090284222
    Abstract: A docking device for receiving a portable computer is disclosed. The docking device includes a device housing and a charging connector that is provided on a side surface of the device housing and is connected to a battery connector of a battery pack in order to charge the battery pack. The charging connector is connectable to the battery connector in a state where the battery pack and the device housing are disposed on the same plane. When the charging connector and the battery connector are in a connected state and the device housing is being moved to a position within a predetermined height from the plane, the connection state between the charging connector and the battery connector is maintained. When the device housing is being moved to a position that exceeds the predetermined height from the plane, the battery connector will be separated from the charging connector due to the weight of the battery pack.
    Type: Application
    Filed: April 7, 2009
    Publication date: November 19, 2009
    Inventors: Fumio Tamura, Hiroaki Agata, Mitsuo Horiuchi
  • Publication number: 20080238788
    Abstract: An apparatus has an antenna distance setting mechanism that sets a distance between a cosmetic cover and a radio antenna. An upper housing and a radio antenna, which has a ground and a radiating element and is movably attached to the upper housing, are covered by a cosmetic cover formed of a dielectric material. An antenna distance setting mechanism includes a radio antenna supporting member, elastic members, and protrusions. The radio antenna-supporting member is movably attached to the upper housing. When the cosmetic cover is attached to the upper housing, an inner wall of the cosmetic cover pushes the ends of the protrusions against an elastic force of the elastic members to set the distance between the radiating element and the inner wall of the cosmetic cover to a predetermined distance.
    Type: Application
    Filed: March 28, 2008
    Publication date: October 2, 2008
    Applicant: Lenovo (Singapore) Pte. Ltd.
    Inventors: Hiroaki Agata, Mitsuo Horiuchi, Hirohide Komiyama, Shigeki Mori, Tetsuya Ohtani, Osamu Yamamoto
  • Publication number: 20080232058
    Abstract: An apparatus for reducing weight and thickness of portable computers is disclosed. The apparatus includes a lower housing, an upper housing and a cosmetic cover. The lower housing is configured to accommodate electronic elements therein. The upper housing, which has an opening inside, includes a periphery connected to the lower housing and a main bridge structure connected from one edge of the periphery to another edge of the periphery for providing structural support to the upper housing in the opening and for accommodating a display module therein. The cosmetic cover is configured to cover the upper housing.
    Type: Application
    Filed: January 21, 2008
    Publication date: September 25, 2008
    Inventors: Mitsuo Horiuchi, Shigeki Mori, Hiroaki Agata, Yasushi Honda, Tetsuya Ohtani
  • Publication number: 20080188125
    Abstract: A connecting structure reduces noise effects on an electronic device when hot docking the electronic device to mitigate against malfunctions. When a first electronic device having a first EMI shield is docked with a second electronic device having a second EMI shield, an ESD contact portion, which is connected to the second EMI shield and has higher in impedance than an EMI connecting portion, comes in contact with the first EMI shield earlier than the EMI connecting portion. Electrostatic charge carried on the first EMI shield moves slowly to the second EMI shield due to the high impedance of the ESD contact portion.
    Type: Application
    Filed: February 1, 2008
    Publication date: August 7, 2008
    Inventors: Mitsuo Horiuchi, Fumio Tamura, Hiroaki Agata
  • Patent number: 6933921
    Abstract: Provide is an input device that can be incorporated into a notebook computer that exhibits improved operability even in the case of including both a stick-type and a pad-type pointing devices. A Pad face of a pad-type pointing device is configured to incline against the horizon when a computer is used or against the operation face of a keyboard while lowering the keyboard side. A first button for stick-type pointing device, a guide member for fixing the pad face, and the pad face are configured to be adjacent to one another to make the height of the top surface of the guide member being almost as high as the top surface of the pressed first button. A button with a long stroke is used for a first button to improve usability.
    Type: Grant
    Filed: April 2, 2003
    Date of Patent: August 23, 2005
    Assignee: Lenovo (Singapore) Pte LTD
    Inventors: Hiroaki Yasuda, Fusanobu Nakamura, Mitsuo Horiuchi, David Andrew Sawin
  • Patent number: 6821036
    Abstract: A keyboard includes a plurality of keys arranged in at least one continuous row and formed of a key member and a cover member. These members are combined by inserting positioning pins of the cover member into holes of the key member. Curved portions are provided at a plurality of positions in side support portions of the key member. Even if the cover member and the key member are produced with manufacturing errors in alignment, the curved portions may be deformed to prevent misalignment between openings on the cover member and key top portions on the key member when the positioning pins are inserted into the holes. Elastically deformable arms extending from the side support portions of the key member support the key tops and enable the key tops to move up and down.
    Type: Grant
    Filed: September 25, 2002
    Date of Patent: November 23, 2004
    Assignee: International Business Machines Corporation
    Inventor: Mitsuo Horiuchi