Patents by Inventor Yasushi Nishio

Yasushi Nishio 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).

  • Patent number: 11958950
    Abstract: An ion exchange membrane containing a fluorinated polymer, wherein in a case where by Raman spectroscopy, polarized light orthogonal to the thickness direction of the ion exchange membrane is irradiated to obtain a spectrum chart, whereby the ratio of the peak area a2 of Raman shift 680 to 760 cm?1 to the peak area al of Raman shift 1,025 to 1,095 cm?1 is taken as A1, and by Raman spectroscopy, to a cross section in the thickness direction of the ion exchange membrane, polarized light parallel with the thickness direction is irradiated to obtain a spectrum chart, whereby the ratio of the peak area b2 of Raman shift 920 to 1,025 cm?1 to the peak area b1 of Raman shift 1,025 to 1,095 cm?1 is taken as B1, B1/A1 is at least 1.05.
    Type: Grant
    Filed: October 5, 2020
    Date of Patent: April 16, 2024
    Assignee: AGC Inc.
    Inventors: Shintaro Hayabe, Osamu Homma, Yasushi Yamaki, Tatsuya Miyajima, Takuo Nishio
  • Publication number: 20240033979
    Abstract: The present invention relates to ferrite particles for bonded magnets and a resin composition for bonded magnets which can provide a bonded magnet molded product capable of realizing a high magnetic force and a complicated multipolar waveform owing to such a feature that the ferrite particles are readily and highly oriented against an external magnetic field in a flowing resin upon injection molding, as well as a bonded magnet molded product obtained by injection-molding the above composition. According to the present invention, there are provided ferrite particles for bonded magnets which have a crystallite size of not less than 500 nm as measured in an oriented state by XRD, and an average particle diameter of not less than 1.30 ?m as measured by Fisher method; a resin composition for bonded magnets; and a molded product obtained by injection-molding the composition.
    Type: Application
    Filed: October 13, 2023
    Publication date: February 1, 2024
    Inventors: Yasushi NISHIO, Yasuhiko FUJII, Hiromitsu SAKURAI
  • 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
  • Patent number: 11820055
    Abstract: The present invention relates to ferrite particles for bonded magnets and a resin composition for bonded magnets which can provide a bonded magnet molded product capable of realizing a high magnetic force and a complicated multipolar waveform owing to such a feature that the ferrite particles are readily and highly oriented against an external magnetic field in a flowing resin upon injection molding, as well as a bonded magnet molded product obtained by injection-molding the above composition. According to the present invention, there are provided ferrite particles for bonded magnets which have a crystallite size of not less than 500 nm as measured in an oriented state by XRD, and an average particle diameter of not less than 1.30 ?m as measured by Fisher method; a resin composition for bonded magnets; and a molded product obtained by injection-molding the composition.
    Type: Grant
    Filed: April 1, 2014
    Date of Patent: November 21, 2023
    Assignee: TODA KOGYO CORP.
    Inventors: Yasushi Nishio, Yasuhiko Fujii, Hiromitsu Sakurai
  • 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
  • Patent number: 11228106
    Abstract: The present invention relates to an electronic component, and also relates to an antenna for information communication using a magnetic field component, which is capable of satisfying both of downsizing and improvement in communication sensitivity. The electronic component of the present invention comprises a ferrite core and a coil, in which a ferrite constituting the ferrite core has a spinel structure and comprises Fe, Ni, Zn, Cu and Co as constitutional metal elements, and when contents of the respective constitutional metal elements in the ferrite are calculated in terms of Fe2O3, NiO, ZnO, CuO and CoO, contents of Fe2O3, NiO, ZnO, CuO and CoO in the ferrite are 46 to 50 mol %, 20 to 27 mol %, 15 to 22 mol %, 9 to 11 mol % and 0.01 to 1.0 mol %, respectively, based on a total content of Fe2O3, NiO, ZnO, CuO and CoO.
    Type: Grant
    Filed: January 29, 2018
    Date of Patent: January 18, 2022
    Assignee: TODA KOGYO CORPORATION
    Inventors: Satoshi Nomura, Jun Koujima, Yasushi Nishio, Manato Nakatsukasa, Yasuhiko Fujii
  • Publication number: 20190393605
    Abstract: The present invention relates to an electronic component, and also relates to an antenna for information communication using a magnetic field component, which is capable of satisfying both of downsizing and improvement in communication sensitivity. The electronic component of the present invention comprises a ferrite core and a coil, in which a ferrite constituting the ferrite core has a spinel structure and comprises Fe, Ni, Zn, Cu and Co as constitutional metal elements, and when contents of the respective constitutional metal elements in the ferrite are calculated in terms of Fe2O3, NiO, ZnO, CuO and CoO, contents of Fe2O3, NiO, ZnO, CuO and CoO in the ferrite are 46 to 50 mol %, 20 to 27 mol %, 15 to 22 mol %, 9 to 11 mol % and 0.01 to 1.0 mol %, respectively, based on a total content of Fe2O3, NiO, ZnO, CuO and CoO.
    Type: Application
    Filed: January 29, 2018
    Publication date: December 26, 2019
    Inventors: Satoshi NOMURA, Jun KOUJIMA, Yasushi NISHIO, Manato NAKATSUKASA, Yasuhiko FUJII
  • Patent number: 10497498
    Abstract: The object of the present invention relates to ferrite particles for bonded magnets and a resin composition for bonded magnets which is capable of obtaining a bonded magnet molded product having a good magnetic force and a magnetic waveform as well as high iHc and Hk by injection molding. The present invention aims at providing a bonded magnet molded product using the ferrite particles and the resin composition. The aforementioned object of the present invention can be achieved by ferrite particles for bonded magnets which have a crystal distortion of not more than 0.14 as measured by XRD, and an average particle diameter of not less than 1.30 ?m as measured by Fisher method; a resin composition for bonded magnets; and a molded product obtained by injection-molding the resin composition.
    Type: Grant
    Filed: September 29, 2015
    Date of Patent: December 3, 2019
    Assignee: TODA KOGYO CORP.
    Inventors: Yasushi Nishio, Satoshi Nomura, Yasuhiko Fujii, Hiromitsu Sakurai
  • Publication number: 20170221619
    Abstract: The object of the present invention relates to ferrite particles for bonded magnets and a resin composition for bonded magnets which is capable of obtaining a bonded magnet molded product having a good magnetic force and a magnetic waveform as well as high iHc and Hk by injection molding. The present invention aims at providing a bonded magnet molded product using the ferrite particles and the resin composition. The aforementioned object of the present invention can be achieved by ferrite particles for bonded magnets which have a crystal distortion of not more than 0.14 as measured by XRD, and an average particle diameter of not less than 1.30 ?m as measured by Fisher method; a resin composition for bonded magnets; and a molded product obtained by injection-molding the resin composition.
    Type: Application
    Filed: September 29, 2015
    Publication date: August 3, 2017
    Applicant: TODA KOGYO CORP.
    Inventors: Yasushi NISHIO, Satoshi NOMURA, Yasuhiko FUJII, Hiromitsu SAKURAI
  • 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
  • Patent number: 9607741
    Abstract: The present invention relates to ferrite particles for bonded magnet, having a volume-average particle diameter of 2.1 to 2.7 ?m and a particle diameter ×90 of 4.3 to 5.4 ?m wherein the ×90 represents a particle diameter at which a cumulative percentage of particles under sieve (undersize particles) based on a volume thereof is 90%, when determined from a particle size distribution thereof measured by using a laser diffraction type particle size distribution measuring apparatus.
    Type: Grant
    Filed: April 18, 2014
    Date of Patent: March 28, 2017
    Assignee: TODA KOGYO CORPORATION
    Inventors: Yasuhiko Fujii, Minoru Ohsugi, Yasushi Nishio, Yosuke Koyama, Shigeru Takaragi
  • Publication number: 20160276079
    Abstract: An object of the present invention is to provide a power transmission device for a non-contact power feeder system which has high power transmission efficiency and high impact resistance. The above object of the present invention can be achieved by a soft magnetic ferrite resin composition molded product comprising a filler and a binder, in which the filler comprises soft magnetic ferrite particles having an average particle diameter of 5 to 35 ?m, the binder comprises at least one material selected from the group consisting of a thermoplastic resin and a soft polyolefin resin, and the soft magnetic ferrite resin composition molded product has a molding density of 3.2 to 4.7 g/cm3 and a magnetic permeability of 5 to 15, and a power transmission device for a non-contact power feeder system which comprises the above soft magnetic ferrite resin composition molded product.
    Type: Application
    Filed: October 30, 2014
    Publication date: September 22, 2016
    Inventors: Kazushi NISHIMOTO, Yoji OKANO, Hiromitsu SAKURAI, Kazumi YAMAMOTO, Tomohiro DOTE, Yasushi NISHIO, Yasuhiko FUJII
  • 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
  • Publication number: 20160039128
    Abstract: The present invention relates to ferrite particles for bonded magnets and a resin composition for bonded magnets which can provide a bonded magnet molded product capable of realizing a high magnetic force and a complicated multipolar waveform owing to such a feature that the ferrite particles are readily and highly oriented against an external magnetic field in a flowing resin upon injection molding, as well as a bonded magnet molded product obtained by injection-molding the above composition. According to the present invention, there are provided ferrite particles for bonded magnets which have a crystallite size of not less than 500 nm as measured in an oriented state by XRD, and an average particle diameter of not less than 1.30 ?m as measured by Fisher method; a resin composition for bonded magnets; and a molded product obtained by injection-molding the composition.
    Type: Application
    Filed: April 1, 2014
    Publication date: February 11, 2016
    Inventors: Yasushi NISHIO, Yasuhiko FUJII, Hiromitsu SAKURAI
  • Patent number: 9249033
    Abstract: The present invention relates to ferrite particles for bonded magnets and a resin composition for bonded magnets which exhibit a good moldability, in particular, a good mechanical strength even when rapidly quenched upon injection-cooling, and is capable of producing a bonded magnet molded product having excellent magnetic properties, as well as a bonded magnet molded product such as a magnet roll using the ferrite particles and the resin composition. There are provided ferrite particles for bonded magnets which comprise phosphorus adsorbed and/or incorporated in ferrite, in which a content of the phosphorus in the ferrite is 120 to 5000 mg/kg (0.012 to 0.50% by weight) in terms of P; a resin composition for bonded magnets; and a magnet roll.
    Type: Grant
    Filed: March 14, 2008
    Date of Patent: February 2, 2016
    Assignee: TODA KOGYO CORPORATION
    Inventors: Yasuhiko Fujii, Yasushi Nishio, Kazuhisa Kanefuji, Tatsuya Ishida, Shigeru Takaragi
  • 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
  • Publication number: 20140225023
    Abstract: The present invention relates to ferrite particles for bonded magnet, having a volume-average particle diameter of 2.1 to 2.7 ?m and a particle diameter ×90 of 4.3 to 5.4 ?m wherein the ×90 represents a particle diameter at which a cumulative percentage of particles under sieve (undersize particles) based on a volume thereof is 90%, when determined from a particle size distribution thereof measured by using a laser diffraction type particle size distribution measuring apparatus.
    Type: Application
    Filed: April 18, 2014
    Publication date: August 14, 2014
    Applicant: TODA KOGYO CORPORATION
    Inventors: Yasuhiko FUJII, Minoru OHSUGI, Yasushi NISHIO, Yosuke KOYAMA, Shigeru TAKARAGI
  • Patent number: 8741170
    Abstract: The present invention relates to ferrite particles for bonded magnet, having a volume-average particle diameter of 2.1 to 2.7 ?m and a particle diameter x90 of 4.3 to 5.4 ?m wherein the x90 represents a particle diameter at which a cumulative percentage of particles under sieve (undersize particles) based on a volume thereof is 90%, when determined from a particle size distribution thereof measured by using a laser diffraction type particle size distribution measuring apparatus.
    Type: Grant
    Filed: October 2, 2009
    Date of Patent: June 3, 2014
    Assignee: Toda Kogyo Corporation
    Inventors: Yasuhiko Fujii, Minoru Ohsugi, Yasushi Nishio, Yosuke Koyama, Shigeru Takaragi
  • Publication number: 20100108935
    Abstract: The present invention relates to ferrite particles for bonded magnets and a resin composition for bonded magnets which exhibit a good moldability, in particular, a good mechanical strength even when rapidly quenched upon injection-cooling, and is capable of producing a bonded magnet molded product having excellent magnetic properties, as well as a bonded magnet molded product such as a magnet roll using the ferrite particles and the resin composition. There are provided ferrite particles for bonded magnets which comprise phosphorus adsorbed and/or incorporated in ferrite, in which a content of the phosphorus in the ferrite is 120 to 5000 mg/kg (0.012 to 0.50% by weight) in terms of P; a resin composition for bonded magnets; and a magnet roll.
    Type: Application
    Filed: March 14, 2008
    Publication date: May 6, 2010
    Inventors: Yasuhiko Fujii, Yasushi Nishio, Kazuhisa Kanefuji, Tatsuya Ishida, Shigeru Takaragi
  • Publication number: 20100065771
    Abstract: The present invention relates to ferrite particles for bonded magnet, having a volume-average particle diameter of 2.1 to 2.7 ?m and a particle diameter x90 of 4.3 to 5.4 ?m wherein the x90 represents a particle diameter at which a cumulative percentage of particles under sieve (undersize particles) based on a volume thereof is 90%, when determined from a particle size distribution thereof measured by using a laser diffraction type particle size distribution measuring apparatus.
    Type: Application
    Filed: October 2, 2009
    Publication date: March 18, 2010
    Applicant: TODA KOGYO CORPORATION
    Inventors: Yasuhiko FUJII, Minoru Ohsugi, Yasushi Nishio, Yosuke Koyama, Shigeru Takaragi