Patents by Inventor Shigeharu Kamado

Shigeharu Kamado 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: 20210025035
    Abstract: A magnesium alloy of the present invention has a structure, comprising: 0.5-2.0 wt % of Zn; 0.3-0.8 wt % of Ca; at least 0.2 wt % of Zr; and the remainder comprising Mg and unavoidable impurities, wherein a nanometer-sized precipitate comprising Mg, Ca and Zn dispersed on the (0001) plane of a magnesium matrix, thereby achieving both formability and strength in a range of temperatures including room temperature.
    Type: Application
    Filed: August 20, 2018
    Publication date: January 28, 2021
    Applicant: NATIONAL INSTITUTE FOR MATERIALS SCIENCE
    Inventors: Ming-Zhe Bian, Taisuke Sasaki, Kazuhiro Hono, Shigeharu Kamado, Taiki Nakata
  • Publication number: 20200239992
    Abstract: Disclosed are a highly versatile magnesium alloy that can achieve both formability and strength in a temperature range including room temperature, and a method for manufacturing the magnesium alloy, wherein the obtained magnesium alloy contains 0.2 to 2 wt % of Al, 0.2 to 1 wt % of Mn, 0.2 to 2 wt % of Zn, and at least 0.2 to 1 wt % of Ca, the remainder comprising Mg and unavoidable impurities, and a precipitate comprising Mg, Ca, and Al is dispersed on the (0001) plane of a magnesium matrix.
    Type: Application
    Filed: February 20, 2018
    Publication date: July 30, 2020
    Applicant: NATIONAL INSTITUTE FOR MATERIALS SCIENCE
    Inventors: Ming-Zhe Bian, Taisuke Sasaki, Kazuhiro Hono, Byeongchan Suh, Shigeharu Kamado, Taiki Nakata
  • Publication number: 20130213528
    Abstract: A magnesium alloy member capable of achieving a mechanical strength and a high-temperature fatigue strength sufficient for a compressor for in automotive air conditioners The magnesium alloy member is formed by subjecting a cast material of a magnesium alloy containing, on the basis of mass %, from 0.3% to 10% calcium (Ca), from 0.2% to 15% aluminum (Al), and from 0.05% to 1.5% manganese (Mn), and containing calcium (Ca) and aluminum (Al) at a calcium/aluminum mass ratio of from 0.6 to 1.7, with the balance being magnesium (Mg) and inevitable impurities to plastic working (extrusion processing) at from 250° C. to 500° C. This makes it possible to obtain a magnesium alloy member having a room-temperature 0.2% proof stress of 300 MPa or more and a 150° C. fatigue strength of 100 MPa or greater.
    Type: Application
    Filed: October 28, 2011
    Publication date: August 22, 2013
    Inventors: Sueji Hirawatari, Hidenori Hosoi, Tsuyoshi Fukui, Makoto Fukushima, Shigeharu Kamado, Tomoyuki Honma
  • Patent number: 7988762
    Abstract: There is provided a protective gas composition for preventing combustion of a molten magnesium/magnesium alloy, containing a compound selected from the group consisting of 1,1,1,3,3-pentafluoropropane (HFC-245fa), 1,3,3,3-tetrafluoropropene (OHFC-1234ze), methyl 1,1,2,2-tetrafluoroethyl ether (HFE-254pc), which are fluorine-containing organic compounds, and mixtures thereof; and a carrier gas.
    Type: Grant
    Filed: November 1, 2006
    Date of Patent: August 2, 2011
    Assignees: Central Glass Company, Limited, Nagaoka University of Technology
    Inventors: Shigeharu Kamado, Hayato Okumura, Daisuke Yamagata, Yasuo Hibino, Fuyuhiko Sakyu
  • Publication number: 20100257976
    Abstract: There is provided a protective gas composition for preventing combustion of a molten magnesium/magnesium alloy, containing a compound selected from the group consisting of 1,1,1,3,3-pentafluoropropane (HFC-245fa), 1,3,3,3-tetrafluoropropene (OHFC-1234ze), methyl 1,1,2,2-tetrafluoroethyl ether (HFE-254pc), which are fluorine-containing organic compounds, and mixtures thereof; and a carrier gas.
    Type: Application
    Filed: November 1, 2006
    Publication date: October 14, 2010
    Applicant: NAGAOKA UNIVERSITY OF TECHNOLOGY
    Inventors: Shigeharu Kamado, Hayato Okumura, Daisuke Yamagata, Yasuo Hibino, Fuyuhiko Sakyu
  • Publication number: 20100202916
    Abstract: An Mg base alloy of this invention is characterized in that Ag is contained in an amount of not more than 1.98 at % as an additive material other than Zn. There is provided an Mg base alloy having not only a practically sufficient strength but good ductility at room temperature to an extent that it has hitherto been unable to be desired and having small anisotropy in strength characteristics.
    Type: Application
    Filed: May 9, 2008
    Publication date: August 12, 2010
    Inventors: Chamini Mendis, Keiichiro Oishi, Kazuhiro Houno, Yoshiaki Kawamura, Shigeharu Kamado
  • Publication number: 20080006385
    Abstract: A composite material composed of nanocarbon materials and metallic materials for a matrix is extrusion molded to have the nanocarbon materials oriented in one direction.
    Type: Application
    Filed: May 24, 2006
    Publication date: January 10, 2008
    Applicants: NISSEI PLASTIC INDUSTRIAL CO, LTD., NAGAOKA UNIVERSITY OF TECHNOLOGY
    Inventors: Masashi Suganuma, Atsushi Kato, Shigeharu Kamado, Daisuke Tsushima
  • Patent number: 7311135
    Abstract: A composite material composed of nanocarbon materials and metallic materials for a matrix is extrusion molded to have the nanocarbon materials oriented in one direction.
    Type: Grant
    Filed: May 24, 2006
    Date of Patent: December 25, 2007
    Assignees: Nissei Plastic Industrial Co., Ltd., Nagaoka University of Technology
    Inventors: Masashi Suganuma, Atsushi Kato, Shigeharu Kamado, Daisuke Tsushima