Patents by Inventor Yasuaki Tanioku

Yasuaki Tanioku 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: 20220246338
    Abstract: A sintered ferrite magnet having a composition of metal elements of Ca, R, A, Fe and Co, which is represented by the general formula of Ca1?x?yRxAyFe2n?zCoz, wherein R is at least one of rare earth elements indispensably including La; A is Sr and/or Ba; x, y, z and n represent the atomic ratios of Ca, R, A, Fe and Co; 2n represents a molar ratio expressed by 2n=(Fe+Co)/(Ca+R+A); and x, y, z and n meet the conditions of 0.15?x?0.35, 0.05?y?0.40, (1?x?y)>y, 0<z?0.18, and 7.5?(2n?z)<11.0.
    Type: Application
    Filed: April 20, 2022
    Publication date: August 4, 2022
    Applicant: HITACHI METALS, LTD.
    Inventors: Yasuaki TANIOKU, Yushi YOSHIMITSU, Yoshinori KOBAYASHI
  • Patent number: 11404188
    Abstract: A sintered ferrite magnet having a composition of metal elements of Ca, R, A, Fe and Co, which is represented by the general formula of Ca1-x-yRxAyFe2n-zCoz, wherein R is at least one of rare earth elements indispensably including La; A is Sr and/or Ba; x, y, z and n represent the atomic ratios of Ca, R, A, Fe and Co; 2n represents a molar ratio expressed by 2n=(Fe+Co)/(Ca+R+A); and x, y, z and n meet the conditions of 0.15?x?0.35, 0.05?y?0.40, (1-x-y)>y, 0<z?0.18, and 7.5?(2n-z)<11.0.
    Type: Grant
    Filed: February 9, 2021
    Date of Patent: August 2, 2022
    Assignee: HITACHI METALS, LTD.
    Inventors: Yasuaki Tanioku, Yushi Yoshimitsu, Yoshinori Kobayashi
  • Publication number: 20210304930
    Abstract: A sintered ferrite magnet having a composition of metal elements of Ca, R, A, Fe and Co, which is represented by the general formula of Ca1-x-yRxAyFe2n-zCoz, wherein R is at least one of rare earth elements indispensably including La; A is Sr and/or Ba; x, y, z and n represent the atomic ratios of Ca, R, A, Fe and Co; 2n represents a molar ratio expressed by 2n=(Fe+Co)/(Ca+R+A); and x, y, z and n meet the conditions of 0.15?x?0.35, 0.05?y?0.40, (1-x-y)>y, 0<z?0.18, and 7.5?(2n-z)<11.0.
    Type: Application
    Filed: February 9, 2021
    Publication date: September 30, 2021
    Applicant: HITACHI METALS, LTD.
    Inventors: Yasuaki Tanioku, Yushi Yoshimitsu, Yoshinori Kobayashi