Patents by Inventor Yukihiro Baba

Yukihiro Baba 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 stainless steel sheet with excellent workability and method for making the same
    Patent number: 7025838
    Abstract: A ferritic stainless steel sheet for use in automobile fuel tanks and fuel pipes having smooth surface and resistance to organic acid is provided. The sheet contains, by mass, not more than about 0.1% C, not more than about 1.0 Si, not more than about 1.5% Mn, not more than about 0.06% P, not more than about 0.03% S, about 11% to about 23% Cr, not more than about 2.0% Ni, about 0.5% to about 3.0% Mo, not more than about 1.0% Al, not more than about 0.04% N, at least one of not more than about 0.8% Nb and not more than about 1.0% Ti, and the balance being Fe and unavoidable impurities, satisfying the relationship: 18?Nb/(C+N)+2Ti/(C+N)?60, wherein C, N, Nb, and Ti in the relationship represent the C, N, Nb, and Ti contents by mass percent, respectively. A process for making the same is also provided.
    Type: Grant
    Filed: February 17, 2004
    Date of Patent: April 11, 2006
    Assignee: JFE Steel Corporation
    Inventors: Yoshihiro Yazawa, Osamu Furukimi, Mineo Muraki, Yoshihiro Ozaki, Kunio Fukuda, Yukihiro Baba
  • Ferritic stainless steel sheet with excellent workability and method for making the same
    Publication number: 20040159380
    Abstract: A ferritic stainless steel sheet for use in automobile fuel tanks and fuel pipes having smooth surface and resistance to organic acid is provided. The sheet contains, by mass, not more than about 0.1% C, not more than about 1.0 Si, not more than about 1.5% Mn, not more than about 0.06% P, not more than about 0.03% S, about 11% to about 23% Cr, not more than about 2.0% Ni, about 0.5% to about 3.0% Mo, not more than about 1.0% Al, not more than about 0.04% N, at least one of not more than about 0.8% Nb and not more than about 1.0% Ti, and the balance being Fe and unavoidable impurities, satisfying the relationship: 18≦Nb/(C+N)+2Ti/(C+N)≦60, wherein C, N, Nb, and Ti in the relationship represent the C, N, Nb, and Ti contents by mass percent, respectively. A process for making the same is also provided.
    Type: Application
    Filed: February 17, 2004
    Publication date: August 19, 2004
    Applicant: JFE Steel Corporation
    Inventors: Yoshihiro Yazawa, Osamu Furukimi, Mineo Muraki, Yoshihiro Ozaki, Kunio Fukuda, Yukihiro Baba
  • Ferritic stainless steel sheet with excellent workability
    Patent number: 6733601
    Abstract: A ferritic stainless steel sheet for use in automobile fuel tanks and fuel pipes having smooth surface and resistance to organic acid is provided. The sheet contains, by mass, not more than about 0.1% C, not more than about 1.0 Si, not more than about 1.5 % Mn, not more than about 0.06% P, not more than about 0.03% S, about 11% to about 23% Cr, not more than about 2.0% Ni, about 0.5% to about 3.0% Mo, not more than about 1.0% Al, not more than about 0.04% N, at least one of not more than about 0.8% Nb and not more than about 1.0% Ti, and the balance being Fe and unavoidable impurities, satisfying the relationship: 18≦Nb/(C+N)+2Ti/(C+N)≦60, wherein C, N, Nb, and. Ti in the relationship represent the C, N, Nb, and Ti contents by mass percent, respectively. A process for making the same is also provided.
    Type: Grant
    Filed: January 14, 2002
    Date of Patent: May 11, 2004
    Assignee: JFE Steel Corporation
    Inventors: Yoshihiro Yazawa, Osamu Furukimi, Mineo Muraki, Yoshihiro Ozaki, Kunio Fukuda, Yukihiro Baba
  • Ferritic stainless steel sheet with excellent workability and method for making the same
    Publication number: 20040035501
    Abstract: A ferritic stainless steel sheet for use in automobile fuel tanks and fuel pipes having smooth surface and resistance to organic acid is provided. The sheet contains, by mass, not more than about 0.1% C, not more than about 1.0 Si, not more than about 1.5% Mn, not more than about 0.06% P, not more than about 0.03% S, about 11% to about 23% Cr, not more than about 2.0% Ni, about 0.5% to about 3.0% Mo, not more than about 1.0% Al, not more than about 0.04% N, at least one of not more than about 0.8% Nb and not more than about 1.0% Ti, and the balance being Fe and unavoidable impurities, satisfying the relationship: 18≦Nb/(C+N)+2Ti/(C+N)≦60, wherein C, N, Nb, and Ti in the relationship represent the C, N, Nb, and Ti contents by mass percent, respectively. A process for making the same is also provided.
    Type: Application
    Filed: August 25, 2003
    Publication date: February 26, 2004
    Applicant: Kawasaki Steel Corporation, a corporation of Japan
    Inventors: Yoshihiro Yazawa, Osamu Furukimi, Mineo Muraki, Yoshihiro Ozaki, Kunio Fukuda, Yukihiro Baba
  • Ferritic stainless steel sheet with excellent workability and method for making the same
    Publication number: 20020136661
    Abstract: A ferritic stainless steel sheet for use in automobile fuel tanks and fuel pipes having smooth surface and resistance to organic acid is provided. The sheet contains, by mass, not more than about 0.1% C, not more than about 1.0 Si, not more than about 1.5% Mn, not more than about 0.06% P, not more than about 0.03% S, about 11% to about 23% Cr, not more than about 2.0% Ni, about 0.5% to about 3.0% Mo, not more than about 1.0% Al, not more than about 0.04% N, at least one of not more than about 0.8% Nb and not more than about 1.0% Ti, and the balance being Fe and unavoidable impurities, satisfying the relationship: 18≦Nb/(C+N)+2Ti/(C+N)≦60, wherein C, N, Nb, and Ti in the relationship represent the C, N, Nb, and Ti contents by mass percent, respectively. A process for making the same is also provided.
    Type: Application
    Filed: January 14, 2002
    Publication date: September 26, 2002
    Inventors: Yoshihiro Yazawa, Osamu Furukimi, Mineo Muraki, Yoshihiro Ozaki, Kunio Fukuda, Yukihiro Baba