Patents Assigned to Hippon Yakin Kogyo Co., Ltd.
  • Fe—Ni based permalloy and method of producing the same and cast slab
    Patent number: 7226515
    Abstract: A Fe—Ni based permalloy comprises Ni: 30–85 wt %, C: not more than 0.015 wt %, Si: not more than 1.0 wt %, Mn: not more than 1.0 wt %, P: not more than 0.01 wt %, S: not more than 0.005 wt %, O: not more than 0.0060 wt %, Al: not more than 0.02 wt % and, if necessary, not more than 15 wt % of at least one selected from the group consisting of Mo, Cu, Co and Nb within a range of not more than 20 wt % in total.
    Type: Grant
    Filed: April 29, 2003
    Date of Patent: June 5, 2007
    Assignee: Hippon Yakin Kogyo Co., Ltd.
    Inventors: Tatsuya Itoh, Tsutomu Omori