Patents by Inventor Keiko YAJIMA

Keiko YAJIMA 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).

  • MAGNETIC BASE BODY CONTAINING METAL MAGNETIC PARTICLES AND COIL COMPONENT INCLUDING THE SAME
    Publication number: 20210407726
    Abstract: A magnetic base body relating to one or more embodiments of the present invention includes metal magnetic particles exhibiting a volume-based particle size distribution indicating that a most frequent particle size is less than 2 ?m and that a cumulative frequency of particle sizes ranging from the smallest particle size to 30% of the most frequent particle size is equal to or less than 1% and an insulating film formed on the surface of each of the metal magnetic particles, where the insulating film exhibits insulating properties.
    Type: Application
    Filed: June 29, 2021
    Publication date: December 30, 2021
    Inventors: Takashi NAKAJIMA, Keiko YAJIMA
  • Ceramic composition and electronic component using the ceramic composition
    Patent number: 11142482
    Abstract: A ceramic composition in one embodiment contains, relative to 100 parts by mass of diopside crystal powder, 0.3 to 1.5 parts by mass of a Li component in terms of an oxide thereof and 0.1 to 1 part by mass of a B component in terms of an oxide thereof. In this embodiment, the content of the Li component in terms of an oxide thereof is larger than the content of the B component in terms of an oxide thereof. In this embodiment, a total content of the Li component and the B component is 2.25 parts by mass or less in terms of oxides thereof.
    Type: Grant
    Filed: July 16, 2019
    Date of Patent: October 12, 2021
    Assignee: TAIYO YUDEN CO., LTD.
    Inventors: Keiko Yajima, Takashi Nakajima
  • CERAMIC COMPOSITION AND ELECTRONIC COMPONENT USING THE CERAMIC COMPOSITION
    Publication number: 20200031721
    Abstract: A ceramic composition in one embodiment contains, relative to 100 parts by mass of diopside crystal powder, 0.3 to 1.5 parts by mass of a Li component in terms of an oxide thereof and 0.1 to 1 part by mass of a B component in terms of an oxide thereof. In this embodiment, the content of the Li component in terms of an oxide thereof is larger than the content of the B component in terms of an oxide thereof. In this embodiment, a total content of the Li component and the B component is 2.
    Type: Application
    Filed: July 16, 2019
    Publication date: January 30, 2020
    Inventors: Keiko YAJIMA, Takashi NAKAJIMA