Patents by Inventor Goshi Shiroishi

Goshi Shiroishi 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: 7945923
    Abstract: The invention provides a disc device capable of offering good SATA interface performance by optimizing the placement of the SATA connector relative to the control board, solving problems concerning noise or unnecessary radiation. A driver IC and DSP for executing main processing concerning disc recording or reproduction processing are installed in a main printed circuit board. A SATA connector having a power supply terminal and signal terminal is fixed to the main printed circuit board. The SATA connector is placed on the board opposite the DSP. Patterns each connecting the power supply terminal to the driver IC and connecting the signal terminal and DSP are formed on the board. The SATA connector and DSP are placed on the driver IC side relative to the central line of the board, the power supply terminal is placed on the driver IC side, and the signal terminal is placed on the DSP side.
    Type: Grant
    Filed: September 21, 2007
    Date of Patent: May 17, 2011
    Assignee: Hitachi-LG Data Storage, Inc.
    Inventors: Yoichi Narui, Goshi Shiroishi, Ikuo Nishida, Kenji Watabe, Masahiro Matsuo
  • Patent number: 7869311
    Abstract: An optical disc apparatus includes a first electric power source portion to convert a first power source voltage into a predetermined voltage, to be supplied to a part of the optical disc apparatus. A second electric power source, to convert a second power source voltage into another predetermined voltage, is supplied to other parts of the optical disc apparatus. An electric power source observation portion observes voltages of the first electric power source portion and the second electric power source portion so as to release resetting of a system constituting the optical disc apparatus, when the voltages of the first electric power source portion and the second electric power source portion reach respective predetermined voltages.
    Type: Grant
    Filed: August 27, 2007
    Date of Patent: January 11, 2011
    Assignee: Hitachi-LG Data Storage, Inc.
    Inventors: Shigehiko Takeshita, Mitsuo Kurokawa, Masahiro Takasago, Goshi Shiroishi
  • Publication number: 20090040900
    Abstract: A pasting method for pasting a non-insulation sheet 20 on a printed circuit board 10, for pasting the non-insulation sheet 20 for shielding electromagnetic waves upon a surface of the printed circuit board 10, which comprises a pattern land formed on an insulation board for soldering a part thereon and a solder resist layer covering a part on the pattern land by a solder resist, comprising the following steps of: a step of forming a ring-like insulation layer 30 for adhering an end face of the non-insulation sheet 20, upon the solder resist layer; and a step for adhering the end face of the non-insulation sheet 20 onto the insulation layer 30, wherein the insulation layer 30 is formed so that the end face of the non-insulation sheet 20 lies within a predetermined region of the insulation layer 30, and thereby providing the method for enabling to paste the non-insulation sheet onto the printed circuit board, during the manufacturing process of the printed circuit board, but without necessity of putting the ins
    Type: Application
    Filed: February 25, 2008
    Publication date: February 12, 2009
    Inventors: Masahiro Takasago, Shigehiko Takeshita, Mitsuo Kurokawa, Goshi Shiroishi, Koichi Ihara
  • Publication number: 20080219107
    Abstract: For providing a built-in type optical disc apparatus, to be installed in a part of an electronic equipment having plural kinds of electric power source portions within a housing thereof, enabling to protect from a malfunction or breakdown of parts thereof when power source is one-sided, thereby to achieve a desired operation with certainty, the optical disc apparatus comprises: a first electric power source portion, to convert a first power source voltage, which is supplied from an electric power source portion provided within the housing of the electronic equipment, into a predetermined voltage, to be supplied to a part of the respective portions, which build up said optical disc apparatus; and a second electric power source, to convert a second power source voltage, which is supplied from another electric power source portion provided within the housing of the electronic equipment, into another predetermined voltage, to be supplied to other part of the respective portions, which build up the optical disc ap
    Type: Application
    Filed: August 27, 2007
    Publication date: September 11, 2008
    Applicant: Hitachi-LG Data Storage, Inc.
    Inventors: Shigehiko Takeshita, Mitsuo Kurokawa, Masahiro Takasago, Goshi Shiroishi
  • Publication number: 20080209457
    Abstract: The invention provides a disc device capable of offering good SATA interface performance by optimizing the placement of the SATA connector relative to the control board, solving problems concerning noise or unnecessary radiation. A driver IC and DSP for executing main processing concerning disc recording or reproduction processing are installed in a main printed circuit board. A SATA connector having a power supply terminal and signal terminal is fixed to the main printed circuit board. The SATA connector is placed on the board opposite the DSP. Patterns each connecting the power supply terminal to the driver IC and connecting the signal terminal and DSP are formed on the board. The SATA connector and DSP are placed on the driver IC side relative to the central line of the board, the power supply terminal is placed on the driver IC side, and the signal terminal is placed on the DSP side.
    Type: Application
    Filed: September 21, 2007
    Publication date: August 28, 2008
    Inventors: Yoichi Narui, Goshi Shiroishi, Ikuo Nishida, Kenji Watabe, Masahiro Matsuo