Patents by Inventor Masaaki Ito

Masaaki Ito 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: 10748684
    Abstract: To provide a rare earth magnet ensuring excellent magnetic anisotropy while reducing the amount of Nd, etc., and a manufacturing method thereof. A rare earth magnet comprising a crystal grain having an overall composition of (R2(1-x)R1x)yFe100-y-w-z-vCowBzTMv (wherein R2 is at least one of Nd, Pr, Dy and Tb, R1 is an alloy of at least one or two or more of Ce, La, Gd, Y and Sc, TM is at least one of Ga, Al, Cu, Au, Ag, Zn, In and Mn, 0<x<1, y=12 to 20, z=5.6 to 6.5, w=0 to 8, and v=0 to 2), wherein the average grain size of the crystal grain is 1,000 nm or less, the crystal grain consists of a core and an outer shell, the core has a composition of R1 that is richer than R2, and the outer shell has a composition of R2 that is richer than R1.
    Type: Grant
    Filed: August 6, 2019
    Date of Patent: August 18, 2020
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Masaaki Ito, Masao Yano, Hidefumi Kishimoto, Noritsugu Sakuma, Tetsuya Shoji, Akira Manabe
  • Publication number: 20200180968
    Abstract: [Problem] Provided is a method for producing a silica sol capable of providing consistent production of the silica sol having a uniform particle size of silica particles in any particle size of the silica particles. [Solution] A method for producing a silica sol is a method including a step of mixing liquid (A) containing an alkaline catalyst, water, and a first organic solvent with liquid (B) containing an alkoxysilane or its condensate and a second organic solvent, and liquid (C1) having a pH of 5.0 or higher and lower than 8.0 and containing water or liquid (C2) containing water and being free of an alkaline catalyst to make a reaction liquid.
    Type: Application
    Filed: February 12, 2020
    Publication date: June 11, 2020
    Applicant: FUJIMI INCORPORATED
    Inventors: Keiji ASHITAKA, Masaaki ITO, Jun SHINODA
  • Patent number: 10660194
    Abstract: A heat conducting member includes: a magnetic substance-containing layer containing a magnetic substance, the magnetic substance being oriented along a predetermined orientation direction; and a metal-containing layer containing a metal body including a surface crossing the orientation direction of the magnetic substance.
    Type: Grant
    Filed: September 6, 2018
    Date of Patent: May 19, 2020
    Assignee: SEIKO EPSON CORPORATION
    Inventor: Masaaki Ito
  • Publication number: 20200137870
    Abstract: A printed circuit board includes a printed wiring board having a mounting surface facing a first side, an electronic element provided on the mounting surface, a heat dissipation member disposed on the first side with respect to the electronic element, and a heat conduction member disposed between the electronic element and the heat dissipation member and having a first surface facing the first side and a second surface facing a second side opposite to the first side. The heat conduction member has a high relative magnetic permeability portion and a low relative dielectric constant portion. The high relative magnetic permeability portion surrounds the low relative dielectric constant portion on at least the second surface of the heat conduction member. At least part of the low relative dielectric constant portion overlaps the electronic element in a plan view seen in a direction perpendicular to the mounting surface.
    Type: Application
    Filed: October 21, 2019
    Publication date: April 30, 2020
    Applicants: SEIKO EPSON CORPORATION, KITAGAWA INDUSTRIES CO., LTD.
    Inventors: Masaaki ITO, Toshiyuki OMORI, Toru MATSUZAKI, Yasuhiro KAWAGUCHI, Masahiro SAITO, Kensuke MITSUYA
  • Patent number: 10631397
    Abstract: A printed circuit board includes a printed wiring board having a mounting surface facing a first side, an electronic element provided on the mounting surface, a heat dissipation member disposed on the first side with respect to the electronic element, and a heat conduction member disposed between the electronic element and the heat dissipation member and having a first surface facing the first side and a second surface facing a second side opposite to the first side. The heat conduction member has a high relative magnetic permeability portion and a low relative dielectric constant portion. The high relative magnetic permeability portion surrounds the low relative dielectric constant portion on at least the second surface of the heat conduction member. At least part of the low relative dielectric constant portion overlaps the electronic element in a plan view seen in a direction perpendicular to the mounting surface.
    Type: Grant
    Filed: October 21, 2019
    Date of Patent: April 21, 2020
    Assignees: SEIKO EPSON CORPORATION, KITAGAWA INDUSTRIES CO., LTD.
    Inventors: Masaaki Ito, Toshiyuki Omori, Toru Matsuzaki, Yasuhiro Kawaguchi, Masahiro Saito, Kensuke Mitsuya
  • Patent number: 10604411
    Abstract: [Problem] Provided is a method for producing a silica sol capable of providing consistent production of the silica sol having a uniform particle size of silica particles in any particle size of the silica particles. [Solution] A method for producing a silica sol is a method including a step of mixing liquid (A) containing an alkaline catalyst, water, and a first organic solvent with liquid (B) containing an alkoxysilane or its condensate and a second organic solvent, and liquid (C1) having a pH of 5.0 or higher and lower than 8.0 and containing water or liquid (C2) containing water and being free of an alkaline catalyst to make a reaction liquid.
    Type: Grant
    Filed: July 25, 2016
    Date of Patent: March 31, 2020
    Assignee: FUJIMI INCORPORATED
    Inventors: Keiji Ashitaka, Masaaki Ito, Jun Shinoda
  • Patent number: 10597375
    Abstract: A novel ?-halogen-substituted thiophene compound or a pharmacologically acceptable salt thereof, which has a potent LPA receptor-antagonist activity and is useful as a medicament is provided. A compound represented by the general formula (I) wherein A represents, a phenyl ring, a thiophene ring, or an isothiazole ring; R1 is the same or different, and represents a halogen atom, or a C1-C3 alkyl group; R2 represents a hydrogen atom, or a C1-C6 alkyl group; p represents an integer of 0 to 5; V represents CR3 wherein R3 represents a hydrogen atom, an amino group, a nitro group, or a C1-C3 alkoxy group, or V represents a nitrogen atom; and X represents a halogen atom, or a salt thereof.
    Type: Grant
    Filed: May 8, 2018
    Date of Patent: March 24, 2020
    Assignee: UBE INDUSTRIES, LTD.
    Inventors: Noriaki Iwase, Hiroshi Nishida, Makoto Okudo, Masaaki Ito, Shigeyuki Kono, Masaaki Matoyama, Shigeru Ushiyama, Eiji Okanari, Hirofumi Matsunaga, Kenji Nishikawa, Tomio Kimura
  • Publication number: 20200036322
    Abstract: To provide a motor control method ensuring that dragging loss at the time of high rotation can be reduced. A motor control method, wherein a composite permanent magnet has a core part and a shell part, the Curie temperature of one of the core part and the shell part is Tc1 K, and the Curie temperature of another is Tc2 K, and wherein when the magnitude of the reluctance torque is equal to or greater than the magnitude of the magnet torque, the temperature of the composite permanent magnet is set at Ts K that is (Tc1?100) K or higher and lower than Tc2 K and when the magnitude of the reluctance torque is less than the magnitude of the magnetic torque, the temperature of the composite permanent magnet is set at lower than the temperature Ts K or Tc1 K, whichever is lower.
    Type: Application
    Filed: July 2, 2019
    Publication date: January 30, 2020
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Noritsugu SAKUMA, Masao YANO, Masaaki ITO, Tetsuya SHOJI, Hidefumi KISHIMOTO, Akira KATO
  • Publication number: 20200022291
    Abstract: A thermally conductive composition is provided, which comprises: a base material; and at least one of a permittivity adjusting filler having a lower permittivity than the base material and a high permeability filler having a higher permeability than the base material. The entire thermally conductive composition has a relative permeability higher than 1 and a relative permittivity of 7 or lower.
    Type: Application
    Filed: July 11, 2019
    Publication date: January 16, 2020
    Inventors: Toru MATSUZAKI, Yasuhiro KAWAGUCHI, Masahiro SAITO, Kensuke MITSUYA, Masaaki ITO, Toshiyuki OMORI
  • Publication number: 20200022259
    Abstract: A thermally conductive composition is provided, which comprises a base material, and a high magnetic permeability filler having a magnetic permeability higher than that of the base material. The thermally conductive composition further comprises an air region inside, and has a relative magnetic permeability higher than 1, and a relative dielectric constant of 7 or lower.
    Type: Application
    Filed: July 11, 2019
    Publication date: January 16, 2020
    Inventors: Kensuke MITSUYA, Yasuhiro KAWAGUCHI, Masahiro SAITO, Toru MATSUZAKI, Masaaki ITO, Toshiyuki OMORI
  • Publication number: 20190362870
    Abstract: To provide a rare earth magnet ensuring excellent magnetic anisotropy while reducing the amount of Nd, etc., and a manufacturing method thereof. A rare earth magnet comprising a crystal grain having an overall composition of (R2(1-x)R1x)yFe100-y-w-z-vCowBzTMv (wherein R2 is at least one of Nd, Pr, Dy and Tb, R1 is an alloy of at least one or two or more of Ce, La, Gd, Y and Sc, TM is at least one of Ga, Al, Cu, Au, Ag, Zn, In and Mn, 0<x<1, y=12 to 20, z=5.6 to 6.5, w=0 to 8, and v=0 to 2), wherein the average grain size of the crystal grain is 1,000 nm or less, the crystal grain consists of a core and an outer shell, the core has a composition of R1 that is richer than R2, and the outer shell has a composition of R2 that is richer than R1.
    Type: Application
    Filed: August 6, 2019
    Publication date: November 28, 2019
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Masaaki ITO, Masao YANO, Hidefumi KISHIMOTO, Noritsugu SAKUMA, Tetsuya SHOJI, Akira MANABE
  • Publication number: 20190337962
    Abstract: The present invention provides a compound of general formula (I) (wherein X is as described in the present description and claims), or a pharmacologically acceptable salt thereof, and a pharmaceutical composition containing that compound.
    Type: Application
    Filed: December 27, 2017
    Publication date: November 7, 2019
    Applicant: UBE INDUSTRIES, LTD.
    Inventors: Ken-ichi KOMORI, Akishi NINOMIYA, Shigeru USHIYAMA, Masaru SHINOHARA, Koji ITO, Tetsuo KAWAGUCHI, Yasunori TOKUNAGA, Hiroyoshi KAWADA, Haruka YAMADA, Yusuke SHIRAISHI, Masahiro KOJIMA, Masaaki ITO, Tomio KIMURA
  • Patent number: 10468165
    Abstract: To provide a rare earth magnet ensuring excellent magnetic anisotropy while reducing the amount of Nd, etc., and a manufacturing method thereof. A rare earth magnet comprising a crystal grain having an overall composition of (R2(1-x)R1x)yFe100-y-w-z-vCowBzTMv (wherein R2 is at least one of Nd, Pr, Dy and Tb, R1 is an alloy of at least one or two or more of Ce, La, Gd, Y and Sc, TM is at least one of Ga, Al, Cu, Au, Ag, Zn, In and Mn, 0<x<1, y=12 to 20, z=5.6 to 6.5, w=0 to 8, and v=0 to 2), wherein the average grain size of the crystal grain is 1,000 nm or less, the crystal grain consists of a core and an outer shell, the core has a composition of R1 that is richer than R2, and the outer shell has a composition of R2 that is richer than R1.
    Type: Grant
    Filed: June 5, 2014
    Date of Patent: November 5, 2019
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Masaaki Ito, Masao Yano, Hidefumi Kishimoto, Noritsugu Sakuma, Tetsuya Shoji, Akira Manabe
  • Patent number: 10424426
    Abstract: To provide a rare earth magnet ensuring excellent magnetic anisotropy while reducing the amount of Nd, etc., and a manufacturing method thereof. A rare earth magnet comprising a crystal grain having an overall composition of (R2(1-x)R1x)yFe100-y-w-z-vCowBzTMv (wherein R2 is at least one of Nd, Pr, Dy and Tb, R1 is an alloy of at least one or two or more of Ce, La, Gd, Y and Sc, TM is at least one of Ga, Al, Cu, Au, Ag, Zn, In and Mn, 0<x<1, y=12 to 20, z=5.6 to 6.5, w=0 to 8, and v=0 to 2), wherein the average grain size of the crystal grain is 1,000 nm or less, the crystal grain consists of a core and an outer shell, the core has a composition of R1 that is richer than R2, and the outer shell has a composition of R2 that is richer than R1.
    Type: Grant
    Filed: June 5, 2014
    Date of Patent: September 24, 2019
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Masaaki Ito, Masao Yano, Hidefumi Kishimoto, Noritsugu Sakuma, Tetsuya Shoji, Akira Manabe
  • Patent number: 10390422
    Abstract: A printed circuit board includes a plurality of metal layers, a plurality of insulating layers provided between the respective metal layers of the plurality of metal layers, and an electronic device provided on one metal layer of the plurality of metal layers. The plurality of metal layers include a first outer metal layer and a second outer metal layer located on the outermost side of the plurality of metal layers and a plurality of intermediate metal layers located between the first outer metal layer and the second outer metal layer. At least one of the plurality of intermediate metal layers is a thick metal layer thicker than the first outer metal layer and the second outer metal layer. The thick metal layer is connected to one of a ground terminal of the electronic device and a power supply terminal of the electronic device.
    Type: Grant
    Filed: March 7, 2018
    Date of Patent: August 20, 2019
    Assignee: SEIKO EPSON CORPORATION
    Inventor: Masaaki Ito
  • Patent number: 10351935
    Abstract: Provided is a magnetic compound represented by the formula (R(1-x)Zrx)a(Fe(1-y)Coy)bTcMdAe (wherein R represents one or more rare earth elements, T represents one or more elements selected from the group consisting of Ti, V, Mo, and W, M represents one or more elements selected from the group consisting of unavoidable impurity elements, Al, Cr, Cu, Ga, Ag, and Au, A represents one or more elements selected from the group consisting of N, C, H, and P, 0?x?0.5, 0?y?0.6, 4?a?20, b=100?a?c?d, 0<c<7, 0?d?1, and 1?e?18), in which a main phase of the magnetic compound includes a ThMn12 type crystal structure, and a volume percentage of an ?-(Fe,Co) phase is 20% or lower.
    Type: Grant
    Filed: September 3, 2015
    Date of Patent: July 16, 2019
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Noritsugu Sakuma, Akira Kato, Kota Washio, Hidefumi Kishimoto, Masao Yano, Akira Manabe, Masaaki Ito, Shunji Suzuki, Kurima Kobayashi
  • Publication number: 20190152953
    Abstract: The present invention provides a compound of general formula (I) (wherein, R1, X, p and q are as described in the present description and claims), or a pharmacologically acceptable salt thereof, and a pharmaceutical composition containing that compound.
    Type: Application
    Filed: August 5, 2016
    Publication date: May 23, 2019
    Applicant: UBE INDUSTRIES, LTD.
    Inventors: Ken-ichi KOMORI, Akishi NINOMIYA, Shigeru USHIYAMA, Masaru SHINOHARA, Koji ITO, Tetsuo KAWAGUCHI, Yasunori TOKUNAGA, Hiroyoshi KAWADA, Haruka YAMADA, Yusuke SHIRAISHI, Masahiro KOJIMA, Masaaki ITO, Tomio KIMURA
  • Publication number: 20190075647
    Abstract: A heat conducting member includes: a magnetic substance-containing layer containing a magnetic substance, the magnetic substance being oriented along a predetermined orientation direction; and a metal-containing layer containing a metal body including a surface crossing the orientation direction of the magnetic substance.
    Type: Application
    Filed: September 6, 2018
    Publication date: March 7, 2019
    Applicant: SEIKO EPSON CORPORATION
    Inventor: Masaaki ITO
  • Publication number: 20190010059
    Abstract: [Problem] Provided is a method for producing a silica sol capable of providing consistent production of the silica sol having a uniform particle size of silica particles in any particle size of the silica particles. [Solution] A method for producing a silica sol is a method including a step of mixing liquid (A) containing an alkaline catalyst, water, and a first organic solvent with liquid (B) containing an alkoxysilane or its condensate and a second organic solvent, and liquid (C1) having a pH of 5.0 or higher and lower than 8.0 and containing water or liquid (C2) containing water and being free of an alkaline catalyst to make a reaction liquid.
    Type: Application
    Filed: July 25, 2016
    Publication date: January 10, 2019
    Applicant: FUJIMI INCORPORATED
    Inventors: Keiji ASHITAKA, Masaaki ITO, Jun SHINODA
  • Publication number: 20180308633
    Abstract: A method for producing a rare earth magnet, including preparing a melt of a first alloy having a composition represented by (R1vR2wR3x)yTzBsM1t (wherein R1 is a light rare earth element, R2 is an intermediate rare earth element, R3 is a heavy rare earth element, T is an iron group element, and M1 is an impurity element, etc.), cooling the melt of the first alloy at a rate of from 100 to 102 K/sec to obtain a first alloy ingot, pulverizing the first alloy ingot to obtain a first alloy powder having a particle diameter of 1 to 20 ?m, preparing a melt of a second alloy having a composition represented by (R4pR5q)100-uM2u (wherein R4 is a light rare earth element, R5 is an intermediate or heavy rare earth element, M2 is an alloy element, etc.), and putting the first alloy powder into contact with the melt of the second alloy.
    Type: Application
    Filed: April 13, 2018
    Publication date: October 25, 2018
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Masaaki ITO, Noritsugu SAKUMA, Masao YANO, Hidefumi KISHIMOTO, Tetsuya SHOJI