Patents by Inventor Hirohisa Seto

Hirohisa Seto 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).

  • Metal foil for current collector of secondary battery and method of producing the same
    Patent number: 6878458
    Abstract: A metal foil for a current collector of a secondary battery formed by electrodeposition and has a thickness (T) of 8 to 40 ?m, the metal foil satisfying the following formulae: 4.9×108?T×S×Y?31×108 4.5???(0.0005×T2)?15 where S is a breaking strength (MPa), ? is a tensile elongation (%) and Y is a Young's modulus (MPa). This foil is preferably a nickel foil and is manufactured by softening or annealing the metal foil obtained by electrodeposition. Thereby, a metal foil for a negative electrode of a secondary battery is obtained with an excellent capability of supporting the active material and large electric conductivity.
    Type: Grant
    Filed: September 12, 2002
    Date of Patent: April 12, 2005
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Hirohisa Seto, Tadayuki Tamaki, Toshiaki Shiota, Ryoichi Noumi, Kunihiro Fukui, Masanari Kimoto
  • Metal foil for current collector of secondary battery and method for producing the same
    Publication number: 20040157128
    Abstract: A metal foil for a current collector of a secondary battery formed by electrodeposition and has a thickness (T) of 8 to 40 &mgr;m, the metal foil satisfying the following formulae:
    Type: Application
    Filed: August 26, 2003
    Publication date: August 12, 2004
    Inventors: Hirohisa Seto, Tadayuki Tamaki, Toshiaki Shiota, Ryoichi Noumi, Kunihiro Fukui, Masanari Kimoto
  • Excellent far-infrared radiating material
    Patent number: 5356724
    Abstract: A material for producing far-infrared radiation is disclosed. The material comprises a substrate and an Al--Mn alloy-derived oxide surface layer on the substrate, the oxide surface layer being porous with an average pore diameter of 0.01-2.0 micrometers and a porosity of 10.sup.3 -10.sup.12 pores/cm.sup.2, the weight ratio of Mn/Al of the oxide surface layer being 0.001-2.0, and the thickness of the oxide surface layer being 0.1-100 micrometers.
    Type: Grant
    Filed: January 15, 1993
    Date of Patent: October 18, 1994
    Assignee: Sumitomo Metal Industries, Ltd.
    Inventors: Tetsuaki Tsuda, Yasuhiro Yamamoto, Junichi Uchida, Hirohisa Seto, Kunihiro Fukui, Shinya Hikino
  • Method for molten salt electroplating of steel
    Patent number: 4966659
    Abstract: A method and apparatus for molten salt electroplating a steel member are disclosed, in which the surface of the steel member is activated by anodic treatment and the molten salt electroplating is performed on the activated surface of said steel member.
    Type: Grant
    Filed: August 3, 1989
    Date of Patent: October 30, 1990
    Assignees: Sumitomo Metal Industries, Ltd., Mitsubishi Jukogyo Kabushiki Kaisha
    Inventors: Hirohisa Seto, Atsuyoshi Shibuya, Junichi Uchida, Toshio Nakamori, Hirotaka Nakabayhashi, Kenichi Yanagi, Yukio Kanda, Junkichi Yoneda, Katsufumi Hidaka, Yoshio Shimozato, Yuuji Furuzawa, Hajime Shimasaki, Toshio Taguchi
  • Method and apparatus for molten salt electroplating of steel
    Patent number: 4895633
    Abstract: A method and apparatus for molten salt electroplating a steel member are disclosed, in which the surface of the steel member is activated by anodic treatment and the molten salt electroplating is performed on the activated surface of said steel member.
    Type: Grant
    Filed: June 3, 1988
    Date of Patent: January 23, 1990
    Assignees: Sumitomo Metal Industries, Ltd., Mitsubishi Jukogyo Kabushiki Kaisha
    Inventors: Hirohisa Seto, Atsuyoshi Shibuya, Junichi Uchida, Toshio Nakamori, Hirotaka Nakabayashi, Kenichi Yanagi, Yukio Kanda, Junkichi Yoneda, Katsufuma Hidaka, Yoshio Shimozato, Yuuji Furuzawa, Hajime Shimasaki, Toshio Taguchi