Patents by Inventor Seiichi Muneki

Seiichi Muneki 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).

  • Ferritic heat-resistant steel and method for producing it
    Publication number: 20060054253
    Abstract: The invention provides a ferritic heat-resistant steel having excellent high-temperature oxidation resistance, especially excellent steam oxidation-resistant characteristics. In high-Cr ferritic heat-resistant steel, ultra-fine oxide particles having a size of not larger than 1 ?m are formed just below the oxide films and formed on the steel base, whereby the adhesiveness between the films and the base is enhanced. The ferritic heat-resistant steel contains Cr in an amount of from 8.0 to 13.0% by weight, and at least one of Rh and Ir in a total amount of from 0.3 to 5.0% by weight.
    Type: Application
    Filed: October 17, 2005
    Publication date: March 16, 2006
    Inventors: Nobuyuki Fujitsuna, Fujio Abe, Takehiko Itagaki, Masaaki Igarashi, Seiichi Muneki, Kazuhiro Kimura, Hideaki Kushima
  • Ferritic heat-resistant steel and method for producing it
    Publication number: 20040060621
    Abstract: The invention provides a ferritic heat-resistant steel having excellent high-temperature oxidation resistance, especially excellent steam oxidation-resistant characteristics. In high-Cr ferritic heat-resistant steel, ultra-fine oxide particles having a size of not larger than 1 &mgr;m are formed just below the oxide films and formed on the steel base, whereby the adhesiveness between the films and the base is enhanced. The ferritic heat-resistant steel contains Cr in an amount of from 8.0 to 13.0% by weight, and at least one of Rh and Ir in a total amount of from 0.3 to 5.0% by weight.
    Type: Application
    Filed: September 30, 2003
    Publication date: April 1, 2004
    Inventors: Nobuyuki Fujitsuna, Fujio Abe, Takehiko Itagaki, Masaki Igarashi, Seiichi Muneki, Kazuhiro Kimura, Hideaki Kushima
  • Ferritic heat-resistant steel and method for producing it
    Publication number: 20030127163
    Abstract: The invention provides a ferritic heat-resistant steel having excellent high-temperature oxidation resistance, especially excellent steam oxidation-resistant characteristics. In high-Cr ferritic heat-resistant steel, ultra-fine oxide particles having a size of not larger than 1 &mgr;m are formed just below the oxide films and formed on the steel base, whereby the adhesiveness between the films and the base is enhanced. The ferritic heat-resistant steel contains Cr in an amount of from 8.0 to 13.0% by weight, and at least one of Rh and Ir in a total amount of from 0.3 to 5.0% by weight.
    Type: Application
    Filed: July 22, 2002
    Publication date: July 10, 2003
    Inventors: Nobuyuki Fujitsuna, Fujio Abe, Takehiko Itagaki, Masaaki Igarashi, Seiichi Muneki, Kazuhiro Kimura, Hideaki Kushima
  • FERRITIC HEAT-RESISTANT STEEL AND METHOD FOR PRODUCING IT
    Publication number: 20020011285
    Abstract: The invention provides a ferritic heat-resistant steel having excellent high-temperature oxidation resistance, especially excellent steam oxidation-resistant characteristics. In high-Cr ferritic heat-resistant steel, ultra-fine oxide particles having a size of not larger than 1 &mgr;m are formed just below the oxide films and formed on the steel base, whereby the adhesiveness between the films and the base is enhanced. The ferritic heat-resistant steel contains Cr in an amount of from 8.0 to 13.0% by weight, and at least one of Rh and Ir in a total amount of from 0.3 to 5.0% by weight.
    Type: Application
    Filed: September 21, 1998
    Publication date: January 31, 2002
    Inventors: NOBUYUKI FUJITSUNA, FUJIO ABE, TAKEHIKO ITAGAKI, MASAAKI IGARASHI, SEIICHI MUNEKI, KAZUHIRO KIMURA, HIDEAKI KUSHIMA
  • Heat resisting steel containing a ferrite or tempered martensite structure
    Patent number: 6299704
    Abstract: Heat resisting steel containing a ferrite or tempered martensite structure, in which intermetallic compound phases having a L10 or L12 ordered structure are uniformly precipitated in ferrite or tempered martensite grains.
    Type: Grant
    Filed: August 27, 1999
    Date of Patent: October 9, 2001
    Assignee: Japan as represented by Director General of National Research Institute for Metals
    Inventors: Masaaki Igarashi, Seiichi Muneki