Patents by Inventor Norihiro Fukushina

Norihiro Fukushina 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).

  • Ferrite particles for bonded magnets, resin composition for bonded magnets, and molded product using the same
    Patent number: 11823823
    Abstract: According to the present invention, there are provided ferrite particles for bonded magnets and a resin composition for bonded magnets which are capable of producing a bonded magnet molded product having a good tensile elongation and exhibiting excellent magnetic properties, as well as a bonded magnet molded product such as a rotor which is obtained by using the resin composition. The present invention relates to ferrite particles for bonded magnets having a bulk density of not less than 0.5 g/cm3 and less than 0.6 g/cm3 and a degree of compaction of not less than 65%, a resin composition for bonded magnets using the ferrite particles, and a molded product obtained by using the ferrite particles and the resin composition.
    Type: Grant
    Filed: November 10, 2022
    Date of Patent: November 21, 2023
    Assignee: TODA KOGYO CORPORATION
    Inventors: Yasushi Nishio, Hiromitsu Sakurai, Norihiro Fukushina, Yasuhiko Fujii
  • FERRITE PARTICLES FOR BONDED MAGNETS, RESIN COMPOSITION FOR BONDED MAGNETS, AND MOLDED PRODUCT USING THE SAME
    Publication number: 20230078224
    Abstract: According to the present invention, there are provided ferrite particles for bonded magnets and a resin composition for bonded magnets which are capable of producing a bonded magnet molded product having a good tensile elongation and exhibiting excellent magnetic properties, as well as a bonded magnet molded product such as a rotor which is obtained by using the resin composition. The present invention relates to ferrite particles for bonded magnets having a bulk density of not less than 0.5 g/cm3 and less than 0.6 g/cm3 and a degree of compaction of not less than 65%, a resin composition for bonded magnets using the ferrite particles, and a molded product obtained by using the ferrite particles and the resin composition.
    Type: Application
    Filed: November 10, 2022
    Publication date: March 16, 2023
    Inventors: Yasushi NISHIO, Hiromitsu SAKURAI, Norihiro FUKUSHINA, Yasuhiko FUJII
  • Ferrite particles for bonded magnets, resin composition for bonded magnets, and molded product using the same
    Patent number: 9691528
    Abstract: The present invention relates to ferrite particles for bonded magnets having a bulk density of not more than 0.75 g/cm3 and a degree of compaction of not less than 65%, a resin composition for bonded magnets using the ferrite particles and the composition, and a rotor. The ferrite particles for bonded magnets and the resin composition for bonded magnets according to the present invention are capable of providing a bonded magnet molded product having a good tensile elongation and an excellent magnetic properties.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: June 27, 2017
    Assignee: TODA KOGYO CORP.
    Inventors: Yasushi Nishio, Hiromitsu Sakurai, Norihiro Fukushina, Yasuhiko Fujii
  • FERRITE PARTICLES FOR BONDED MAGNETS, RESIN COMPOSITION FOR BONDED MAGNETS, AND MOLDED PRODUCT USING THE SAME
    Publication number: 20160217892
    Abstract: According to the present invention, there are provided ferrite particles for bonded magnets and a resin composition for bonded magnets which are capable of producing a bonded magnet molded product having a good tensile elongation and exhibiting excellent magnetic properties, as well as a bonded magnet molded product such as a rotor which is obtained by using the resin composition. The present invention relates to ferrite particles for bonded magnets having a bulk density of not less than 0.5 g/cm3 and less than 0.6 g/cm3 and a degree of compaction of not less than 65%, a resin composition for bonded magnets using the ferrite particles, and a molded product obtained by using the ferrite particles and the resin composition.
    Type: Application
    Filed: September 30, 2014
    Publication date: July 28, 2016
    Inventors: Yasushi NISHIO, Hiromitsu SAKURAI, Norihiro FUKUSHINA, Yasuhiko FUJII
  • FERRITE PARTICLES FOR BONDED MAGNETS, RESIN COMPOSITION FOR BONDED MAGNETS, AND MOLDED PRODUCT USING THE SAME
    Publication number: 20150041702
    Abstract: The present invention relates to ferrite particles for bonded magnets having a bulk density of not more than 0.75 g/cm3 and a degree of compaction of not less than 65%, a resin composition for bonded magnets using the ferrite particles and the composition, and a rotor. The ferrite particles for bonded magnets and the resin composition for bonded magnets according to the present invention are capable of providing a bonded magnet molded product having a good tensile elongation and an excellent magnetic properties.
    Type: Application
    Filed: March 14, 2013
    Publication date: February 12, 2015
    Inventors: Yasushi Nishio, Hiromitsu Sakurai, Norihiro Fukushina, Yasuhiko Fujii