Patents Examined by Jesee Roe
  • Patent number: 8709178
    Abstract: The present invention provides a titanium material for hot rolling which enables reduction of defects on the surface (in the case of a flat material or strip coil, including not only the flat surfaces but also the side surfaces and edges) due to hot rolling. The titanium material for hot rolling has dimples imparted by cold plastic deformation whose mean value of the heights (Wc) of the undulation profile elements is 0.2 to 1.5 mm and mean value of the lengths (WSm) thereof is 3 to 15 mm. The invention also provides a method of producing the titanium material and a method of hot rolling the titanium material.
    Type: Grant
    Filed: February 8, 2010
    Date of Patent: April 29, 2014
    Assignees: Nippon Steel & Sumitomo Metal Corporation, Toho Titanium Co., Ltd.
    Inventors: Kazuhiro Takahashi, Tomonori Kunieda, Kenichi Mori, Hiroaki Otsuka, Hideki Fujii, Yoshimasa Miyazaki, Takashi Oda, Hisamune Tanaka, Osamu Tada, Norio Yamamoto