Patents by Inventor Shuji Nagasaki

Shuji Nagasaki 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: 20100143743
    Abstract: A stainless steel substrate with one or more conductive metal layers, a method for manufacturing the same, and a hard disk drive suspension material using the same that are excellent in etching accuracy and does not involve the use of any substances casing environmental burdens, while ensuring stable adhesion between the conductive metal layers on the stainless steel substrate and the polyimide-based resin layer. The conductive metal layers are formed to have a total thickness ranging from 0.1 to 10 ?m, a centerline average surface roughness Ra from 0.05 to 1 ?m, and a ten-point average surface roughness Rz from 1 to 5 ?m, respectively.
    Type: Application
    Filed: January 26, 2007
    Publication date: June 10, 2010
    Applicant: NIPPON STEEL MATERIALS CO., LTD.
    Inventors: Yoshito Yamasaki, Jun Nakatsuka, Shuji Nagasaki, Tooru Inaguma, Yuji Kubo, Tsutomu Sugiura
  • Patent number: 6699587
    Abstract: The present invention is: a metallic foil to be used for a metallic honeycomb for purifying exhaust gas of an automobile or the like, said metallic foil not causing cracks or ruptures to develop in the foil even when it undergoes corrugation work with more sharply bending corner portions of a trapezoidal shape; and a catalyst support for purifying exhaust gas of an automobile or the like, characterized in that said metallic foil, being rough surface finished and having good corrugation workability, is made of heat-resistant stainless steel and has surface roughness more than 2.0 and not more than 5.0 &mgr;m in Rmax and, said metallic catalyst support for purifying exhaust gas has a structure comprising a honeycomb inserted in a jacket, wherein the honeycomb is composed of rough surface finished metallic foil having surface roughness more than 2.0 and not more than 5.0 &mgr;m in Rmax and the jacket is made of heat-resistant stainless steel.
    Type: Grant
    Filed: July 19, 2002
    Date of Patent: March 2, 2004
    Assignee: Nippon Steel Corporation
    Inventors: Kazutoshi Iwami, Masayuki Kasuya, Shuji Nagasaki, Mikio Yamanaka
  • Publication number: 20030012974
    Abstract: The present invention is: a metallic foil to be used for a metallic honeycomb for purifying exhaust gas of an automobile or the like, said metallic foil not causing cracks or ruptures to develop in the foil even when it undergoes corrugation work with more sharply bending corner portions of a trapezoidal shape; and a catalyst support for purifying exhaust gas of an automobile or the like, characterized in that said metallic foil, being rough surface finished and having good corrugation workability, is made of heat-resistant stainless steel and has surface roughness more than 2.0 and not more than 5.0 &mgr;m in Rmax and, said metallic catalyst support for purifying exhaust gas has a structure comprising a honeycomb inserted in a jacket, wherein the honeycomb is composed of rough surface finished metallic foil having surface roughness more than 2.0 and not more than 5.0 &mgr;m in Rmax and the jacket is made of heat-resistant stainless steel.
    Type: Application
    Filed: July 19, 2002
    Publication date: January 16, 2003
    Inventors: Kazutoshi Iwami, Masayuki Kasuya, Shuji Nagasaki, Mikio Yamanaka
  • Patent number: 6187452
    Abstract: An ultrathin stainless steel foil of a thickness of 25 &mgr;m or less whose average number of inclusions of a major diameter of 5 &mgr;m or greater per 1 mm2 in sections along the rolling direction is 3 or less. The ultrathin stainless steel foil is not readily susceptible to the local tunnel-like corrosions (voids) that have occasionally occurred, during etching, together with cracking in the rolling direction from the edges.
    Type: Grant
    Filed: March 20, 2000
    Date of Patent: February 13, 2001
    Assignee: Nippon Steel Corporation
    Inventors: Izumi Muto, Michio Nakata, Yoshihiro Fujii, Kenji Hirashima, Shuji Nagasaki, Jun Nakatsuka, Tsuyoshi Nakano