Patents by Inventor Takahiro Muranaka

Takahiro Muranaka 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).

  • ALLOY SUPERCONDUCTOR AND METHODS OF MAKING THE SAME
    Publication number: 20090048114
    Abstract: There are provided an intermetallic-compound superconductor that is high in superconducting transition temperature, and an alloy superconductor that is high in superconducting transition temperature and excels in malleability and ductility, as well as a method of making such a superconductor with good reproducibility and at a low cost of manufacture. This entirely new intermetallic compound superconductor is made of magnesium (Mg) and beryllium (Be) and has a chemical composition expressed by formula: Mg1Be2, has a hexagonal AlB2 type crystallographic structure and has a superconducting transition temperature (Tc) of 35 K. An alloy containing this intermetallic compound excels in malleability and ductility and constitutes the alloy superconductor having a superconducting transition temperature (Tc) of 35 K and being low in specific resistance for normal conduction at a temperature ranging from the superconducting transition temperature to a room temperature.
    Type: Application
    Filed: September 25, 2008
    Publication date: February 19, 2009
    Applicant: JAPAN SCIENCE AND TECHNOLOGY AGENCY
    Inventors: Jun AKIMITSU, Yuji ZENITANI, Takahiro MURANAKA, Kazunobu KADOMURA
  • Intermetallic compound superconducting material comprising magnesium and beryllium and alloy superconducting material containing the intermetallic compound
    Patent number: 7445681
    Abstract: There are provided an intermetallic-compound superconductor that is high in superconducting transition temperature, and an alloy superconductor that is high in superconducting transition temperature and excels in malleability and ductility, as well as a method of making such a superconductor with good reproducibility and at a low cost of manufacture. This entirely new intermetallic compound superconductor is made of magnesium (Mg) and beryllium (Be) and has a chemical composition expressed by formula: Mg1Be2, has a hexagonal AlB2 type crystallographic structure and has a superconducting transition temperature (Tc) of 35 K. An alloy containing this intermetallic compound excels in malleability and ductility and constitutes the alloy superconductor having a superconducting transition temperature (Tc) of 35 K and being low in specific resistance for normal conduction at a temperature ranging from the superconducting transition temperature to a room temperature.
    Type: Grant
    Filed: March 8, 2002
    Date of Patent: November 4, 2008
    Assignee: Japan Science and Technology Agency
    Inventors: Jun Akimitsu, Yuji Zenitani, Takahiro Muranaka, Kazunobu Kadomura
  • Intermetallic compound superconductors and alloy superconductors, and methods of making them
    Patent number: 7172993
    Abstract: There are provided an intermetallic compound superconductor that is high in superconducting transition temperature, and an alloy superconductor that is high in superconducting transition temperature and excels in malleability and ductility, as well as a method of making such a superconductor with good reproducibility and at a low cost of manufacture. This entirely new intermetallic compound superconductor is made of magnesium (Mg) and boron (B) and has a chemical composition expressed by formula: Mg1B2, has a hexagonal AlB2 type crystallographic structure and has a superconducting transition temperature (Tc) of 39 K. An alloy containing this intermetallic compound excels in malleability and ductility and constitutes the alloy superconductor having a superconducting transition temperature (Tc) of 39 K. In the method of manufacture, a Mg containing feedstock powder and a B containing feedstock powder are mixed together to form a mixture thereof which is, e.g., hot pressed to produce a semiconductor product.
    Type: Grant
    Filed: August 12, 2005
    Date of Patent: February 6, 2007
    Assignees: Japan Science and Technology Agency
    Inventors: Jun Akimitsu, Yuji Zenitani, Takahiro Muranaka, Norimasa Nakagawa, Jun Nagamatsu
  • Intermetallic compound superconductors and alloy superconductors, and methods of making them
    Publication number: 20060079402
    Abstract: There are provided an intermetallic compound superconductor that is high in superconducting transition temperature, and an alloy superconductor that is high in superconducting transition temperature and excels in malleability and ductility, as well as a method of making such a superconductor with good reproducibility and at a low cost of manufacture. This entirely new intermetallic compound superconductor is made of magnesium (Mg) and boron (B) and has a chemical composition expressed by formula: Mg1B2, has a hexagonal AlB2 type crystallographic structure and has a superconducting transition temperature (Tc) of 39 K. An alloy containing this intermetallic compound excels in malleability and ductility and constitutes the alloy superconductor having a superconducting transition temperature (Tc) of 39 K. In the method of manufacture, a Mg containing feedstock powder and a B containing feedstock powder are mixed together to form a mixture thereof which is, e.g., hot pressed to produce a semiconductor product.
    Type: Application
    Filed: August 12, 2005
    Publication date: April 13, 2006
    Applicants: JAPAN SCIENCE AND TECHNOLOGY AGENCY, Jun AKIMITSU
    Inventors: Jun Akimitsu, Yuji Zenitani, Takahiro Muranaka, Norimasa Nakagawa, Jun Nagamatsu
  • Intermetallic compound superconductors and alloy superconductors, and method for their preparation
    Patent number: 6956011
    Abstract: There are provided an intermetallic compound superconductor that is high in superconducting transition temperature, and an alloy superconductor that is high in superconducting transition temperature and excels in malleability and ductility, as well as a method of making such a superconductor with good reproducibility and at a low cost of manufacture. This entirely new intermetallic compound superconductor is made of magnesium (Mg) and boron (B) and has a chemical composition expressed by formula: Mg1B2, has a hexagonal AlB2 type crystallographic structure and has a superconducting transition temperature (Tc) of 39 K. An alloy containing this intermetallic compound excels in malleability and ductility and constitutes the alloy superconductor having a superconducting transition temperature (Tc) of 39 K. In the method of manufacture, a Mg containing feedstock powder and a B containing feedstock powder are mixed together to form a mixture thereof which is, e.g., hot pressed to produce a semiconductor product.
    Type: Grant
    Filed: July 24, 2001
    Date of Patent: October 18, 2005
    Assignees: Japan Science and Technology Agency
    Inventors: Jun Akimitsu, Yuji Zenitani, Takahiro Muranaka, Norimasa Nakagawa, Jun Nagamatsu
  • Intermetallic compound superconductors and alloy superconductors, and method for their preparation
    Publication number: 20030017949
    Abstract: There are provided an intermetallic compound superconductor that is high in superconducting transition temperature, and an alloy superconductor that is high in superconducting transition temperature and excels in malleability and ductility, as well as a method of making such a superconductor with good reproducibility and at a low cost of manufacture. This entirely new intermetallic compound superconductor is made of magnesium (Mg) and boron (B) and has a chemical composition expressed by formula: Mg1B2, has a hexagonal AlB2 type crystallographic structure and has a superconducting transition temperature (Tc) of 39 K. An alloy containing this intermetallic compound excels in malleability and ductility and constitutes the alloy superconductor having a superconducting transition temperature (Tc) of 39 K. In the method of manufacture, a Mg containing feedstock powder and a B containing feedstock powder are mixed together to form a mixture thereof which is, e.g., hot pressed to produce a semiconductor product.
    Type: Application
    Filed: September 9, 2002
    Publication date: January 23, 2003
    Inventors: Jun Akimitsu, Yuji Zenitani, Takahiro Muranaka, Norimasa Nakagawa, Jun Nagamatsu
  • System call issue method and debug system
    Patent number: 5964890
    Abstract: In a system call issue method and a debug system, during execution of a target program, data transfer is performed between an emulator and an OS kernel forming the target program through a memory field in a RAM. It is checked whether there is a system call issue request in the memory field and if there is the system call issue request in the memory field, the emulator issues a system call.
    Type: Grant
    Filed: August 26, 1997
    Date of Patent: October 12, 1999
    Assignees: Mitsubishi Electric Semiconductor Software Co., Ltd., Mitsubishi Denki Kabushiki Kaisha
    Inventors: Toshiyuki Inui, Takahiro Muranaka, Hiroyuki Muraki, Akiya Fukui