Patents by Inventor Yukito Nomura

Yukito Nomura 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).

  • Method for continuous high-speed welding of double-ply metal tubes and welding furnace for performing the same
    Patent number: 6808103
    Abstract: The present invention is a method and apparatus for making a double-ply metal tube such as those used for automobile brake tubes by producing the tube continuously in a single process. The present invention is characterized by using a high-temperature reducing molten salt with high heat capacity as the heating medium, whereby the welding speed can be increased and the balance with the tube-making speed can be kept.
    Type: Grant
    Filed: September 17, 2002
    Date of Patent: October 26, 2004
    Inventor: Yukito Nomura
  • Method for continuous high-speed welding of double-ply metal tubes and welding furnace for performing the same
    Publication number: 20030015571
    Abstract: The present invention is a method and apparatus for making a double-ply metal tube such as those used for automobile brake tubes by producing the tube continuously in a single process. The present invention is characterized by using a high-temperature reducing molten salt with high heat capacity as the heating medium, whereby the welding speed can be increased and the balance with the tube-making speed can be kept.
    Type: Application
    Filed: September 17, 2002
    Publication date: January 23, 2003
    Applicant: Yukito Nomura
    Inventor: Yukito Nomura
  • Stainless steel multifold pipe
    Patent number: 5458156
    Abstract: A multifold pipe made by multiple rolling up and turning of a copper coated steel sheet into a multifold pipe, characterized in that said steel sheet is a cold rolled sheet of a super soft austenitic stainless steel comprising by weight: up to 0.05% of C, up to 1.0% of Si, up to 5.0% of Mn, from 9.0% to 15.0% of Ni, from 15.0% to 20.0% of Cr, up to 0.04% of N, up to 5.0% of Cu, the balance being Fe and unavoidable impurities, wherein the alloying elements are further adjusted so that both the two relations (1) and (2) noted below are satisfied:K=20.5+13.0.times.C+0.99.times.Si-1.1.times.Mn-Ni-0.4.times.Cu +0.4.times.Cr+117.1.times.N.ltoreq.19.5 (1)H=27.1+60.9.times.C+0.26.times.Si-Ni-0.79.times.Cu+0.68 .times.Cr+52.6.times.N.ltoreq.29.0 (2)The multifold pipe according to the invention is excellent in fluid tightness of its fused part and in corrosion resistance.
    Type: Grant
    Filed: October 29, 1993
    Date of Patent: October 17, 1995
    Assignees: Nisshin Steel Co., Ltd., Sanoh Kogyo Kabushiki Kaisha
    Inventors: Naoto Okubo, Yoshihiro Uematsu, Katsuhisa Miyakusu, Takashi Igawa, Yukio Oda, Yukito Nomura, Koichi Satake, Juichi Ozawa