Patents by Inventor Wataru Kitagawa

Wataru Kitagawa 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: 8564966
    Abstract: Embodiments of the present invention provide an arrangement structure capable of reducing noise caused by a laminated ceramic capacitor mounted on a printed circuit board. A unit arrangement structure includes ceramic capacitors. Among the laminated ceramic capacitors, capacitors are arranged so that capacitor axes thereof extend along a first axis, while the other ceramic capacitors are arranged so that capacitor axes thereof extend along a second axis crossing the first axis. In accordance with such an arrangement structure, it is possible to effectively suppress noise even in the case of single-side mounting.
    Type: Grant
    Filed: August 10, 2009
    Date of Patent: October 22, 2013
    Assignee: Lenovo (Singapore) Pte. Ltd.
    Inventors: Wataru Kitagawa, Shigeru Yuzawa
  • Patent number: 8413302
    Abstract: The invention broadly contemplates an apparatus that makes it possible to easily lift up and open a notebook type computer cover irrespective of a weight of the cover and stop the cover at a predetermined opened/closed position. A portable electronic apparatus includes: a main body provided with an input operating portion, a cover provided with a display unit, a hinge mechanism including a rotary shaft fixed to the cover and a support member fixed to the main body. The apparatus includes an electromagnetic mechanism having a permanent magnet and an electromagnet, in which the permanent magnet and the electromagnet are disposed with respect to the rotary shaft so that when the current is applied or not applied to the electromagnet, a repulsive or attractive force is generated which allows the rotary shaft to be in a rotatable state, and thereby allow an opening/closing torque to act on the cover.
    Type: Grant
    Filed: December 11, 2008
    Date of Patent: April 9, 2013
    Assignee: Lenova (Singapore) Pte. Ltd.
    Inventors: Wataru Kitagawa, Shigeru Yuzawa, Seita Horikoshi
  • Publication number: 20100033938
    Abstract: Embodiments of the present invention provide an arrangement structure capable of reducing noise caused by a laminated ceramic capacitor mounted on a printed circuit board. A unit arrangement structure includes ceramic capacitors. Among the laminated ceramic capacitors, capacitors are arranged so that capacitor axes thereof extend along a first axis, while the other ceramic capacitors are arranged so that capacitor axes thereof extend along a second axis crossing the first axis. In accordance with such an arrangement structure, it is possible to effectively suppress noise even in the case of single-side mounting.
    Type: Application
    Filed: August 10, 2009
    Publication date: February 11, 2010
    Applicant: Lenovo (Singapore) Pte.Ltd.
    Inventors: Wataru Kitagawa, Shigeru Yuzawa
  • Publication number: 20090144934
    Abstract: The invention broadly contemplates an apparatus that makes it possible to easily lift up and open a notebook type computer cover irrespective of a weight of the cover and stop the cover at a predetermined opened/closed position. A portable electronic apparatus includes: a main body provided with an input operating portion, a cover provided with a display unit, a hinge mechanism including a rotary shaft fixed to the cover and a support member fixed to the main body. The apparatus includes an electromagnetic mechanism having a permanent magnet and an electromagnet, in which the permanent magnet and the electromagnet are disposed with respect to the rotary shaft so that when the current is applied or not applied to the electromagnet, a repulsive or attractive force is generated which allows the rotary shaft to be in a rotatable state, and thereby allow an opening/closing torque to act on the cover.
    Type: Application
    Filed: December 11, 2008
    Publication date: June 11, 2009
    Inventors: Wataru Kitagawa, Shigeru Yuzawa, Seita Horikoshi
  • Publication number: 20070174284
    Abstract: A system and method are disclosed to efficiently arbitrate access contention on a XML data between a plurality of users. A system for controlling access to XML data, includes a management section for managing holders of exclusive access rights of corresponding partial data for each of at least one partial data included in the XML data. A delegation section changes the holder of a second exclusive access right on second partial data, which is a part of first partial data, from a first holder to a second holder in order to delegate a part of a first exclusive access right held by the first holder on the first partial data. An access control section inhibits access to the second partial data from the first holder and permits access to the second partial data from the second holder on condition that the first exclusive access right is delegated.
    Type: Application
    Filed: December 21, 2006
    Publication date: July 26, 2007
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Kohji Hashimoto, Wataru Kitagawa, Kenji Seta