Patents by Inventor Masanaga Nishikawa

Masanaga Nishikawa 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: 7157905
    Abstract: A plurality of magnetosensitive portions of a plurality of magnetic resistance elements and a plurality of magnets are aligned substantially linearly to be perpendicular to a moving direction of a detection object, and directions of magnetic poles of the magnets are alternately inversed, such that directions of magnetic fluxes, which are perpendicular to a surface on which the magnetosensitive portions of the magnetic resistance elements are arranged, of the continuously disposed magnets, are alternately inverse.
    Type: Grant
    Filed: August 24, 2006
    Date of Patent: January 2, 2007
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Tamotsu Minamitani, Koji Shinmura, Masaya Ueda, Masanaga Nishikawa
  • Publication number: 20060279280
    Abstract: A plurality of magnetosensitive portions of a plurality of magnetic resistance elements and a plurality of magnets are aligned substantially linearly to be perpendicular to a moving direction of a detection object, and directions of magnetic poles of the magnets are alternately inversed, such that directions of magnetic fluxes, which are perpendicular to a surface on which the magnetosensitive portions of the magnetic resistance elements are arranged, of the continuously disposed magnets, are alternately inverse.
    Type: Application
    Filed: August 24, 2006
    Publication date: December 14, 2006
    Applicant: MURATA MANUFACTURING CO., LTD.
    Inventors: Tamotsu MINAMITANI, Koji SHINMURA, Masaya UEDA, Masanaga NISHIKAWA
  • Publication number: 20060232165
    Abstract: An ultrasonic transmitting and receiving apparatus includes a casing, a vibration isolating member, and a piezoelectric element. The casing has a bottom, an inner peripheral wall, and an outer peripheral wall, and these components are integral and define a monolithic structure. The inner peripheral wall and the bottom define a first recess. The outer peripheral wall, the inner peripheral wall, and the bottom define a second recess. The second recess is filled with the vibration isolating member. The piezoelectric element is fixed on the bottom facing the first recess in the casing.
    Type: Application
    Filed: June 7, 2004
    Publication date: October 19, 2006
    Inventors: Shinji Amaike, Masanaga Nishikawa
  • Patent number: 6893946
    Abstract: A method for manufacturing a semiconductor thin film having high carrier mobility, and a magnetoelectric conversion element provided with the semiconductor thin film manufactured by the aforementioned method are provided. The temperature of the Si single crystal substrate is raised to 270° C. to 320° C., and an In buffer layer is formed by an electron beam heating type vacuum evaporation method. Subsequently, an initial seed layer made of Sb and In is formed. The temperature of the Si single crystal substrate is raised to 460° C. to 480° C., and thereafter, a retention time approximated by a predetermined function of the temperature of the Si single crystal substrate is provided. Then, a main growth layer made of Sb and In is formed.
    Type: Grant
    Filed: May 1, 2003
    Date of Patent: May 17, 2005
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Masaya Ueda, Tomoharu Sato, Masanaga Nishikawa
  • Publication number: 20050029608
    Abstract: A method for manufacturing a semiconductor thin film having high carrier mobility, and a magnetoelectric conversion element provided with the semiconductor thin film manufactured by the aforementioned method are provided. The temperature of the Si single crystal substrate is raised to 270° C. to 320° C., and an In buffer layer is formed by an electron beam heating type vacuum evaporation method. Subsequently, an initial seed layer made of Sb and In is formed. The temperature of the Si single crystal substrate is raised to 460° C. to 480° C., and thereafter, a retention time approximated by a predetermined function of the temperature of the Si single crystal substrate is provided. Then, a main growth layer made of Sb and In is formed.
    Type: Application
    Filed: September 13, 2004
    Publication date: February 10, 2005
    Applicant: Murata Manufacturing Co., Ltd.
    Inventors: Masaya Ueda, Tomoharu Sato, Masanaga Nishikawa
  • Publication number: 20030203601
    Abstract: A method for manufacturing a semiconductor thin film having high carrier mobility, and a magnetoelectric conversion element provided with the semiconductor thin film manufactured by the aforementioned method are provided. The temperature of the Si single crystal substrate is raised to 270° C. to 320° C., and an In buffer layer is formed by an electron beam heating type vacuum evaporation method. Subsequently, an initial seed layer made of Sb and In is formed. The temperature of the Si single crystal substrate is raised to 460° C. to 480° C., and thereafter, a retention time approximated by a predetermined function of the temperature of the Si single crystal substrate is provided. Then, a main growth layer made of Sb and In is formed.
    Type: Application
    Filed: May 1, 2003
    Publication date: October 30, 2003
    Applicant: Murata Manufacturing Co., Ltd.
    Inventors: Masaya Ueda, Tomoharu Sato, Masanaga Nishikawa
  • Patent number: 6610583
    Abstract: A method for manufacturing a semiconductor thin film having high carrier mobility, and a magnetoelectric conversion element provided with the semiconductor thin film manufactured by the aforementioned method are provided. The temperature of the Si single crystal substrate is raised to 270° C. to 320° C., and an In buffer layer is formed by an electron beam heating type vacuum evaporation method. Subsequently, an initial seed layer made of Sb and In is formed. The temperature of the Si single crystal substrate is raised to 460° C. to 480° C., and thereafter, a retention time approximated by a predetermined function of the temperature of the Si single crystal substrate is provided. Then, a main growth layer made of Sb and In is formed.
    Type: Grant
    Filed: June 21, 2001
    Date of Patent: August 26, 2003
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Masaya Ueda, Tomoharu Sato, Masanaga Nishikawa
  • Publication number: 20020016048
    Abstract: A method for manufacturing a semiconductor thin film having high carrier mobility, and a magnetoelectric conversion element provided with the semiconductor thin film manufactured by the aforementioned method are provided. The temperature of the Si single crystal substrate is raised to 270° C. to 320° C., and an In buffer layer is formed by an electron beam heating type vacuum evaporation method. Subsequently, an initial seed layer made of Sb and In is formed. The temperature of the Si single crystal substrate is raised to 460° C. to 480° C., and thereafter, a retention time approximated by a predetermined function of the temperature of the Si single crystal substrate is provided. Then, a main growth layer made of Sb and In is formed.
    Type: Application
    Filed: June 21, 2001
    Publication date: February 7, 2002
    Applicant: Murata Manufacturing Co., Ltd.
    Inventors: Masaya Ueda, Tomoharu Sato, Masanaga Nishikawa