Patents by Inventor Hajime NAKAZONO

Hajime NAKAZONO 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: 11912897
    Abstract: The present invention provides a conductive coating material curable at low temperatures. The present invention relates to a conductive coating material containing: 100 parts by weight of an epoxy resin-containing binder component (A); 500 to 2500 parts by weight of metal particles (B); 1 to 150 parts by weight of a curing agent (C); 20 to 800 parts by weight of a solvent (D); and 0.5 to 5 parts by weight of a curing catalyst (E).
    Type: Grant
    Filed: February 18, 2019
    Date of Patent: February 27, 2024
    Assignee: Tatsuta Electric Wire & Cable Co., Ltd.
    Inventors: Hajime Nakazono, Kazuhiro Matsuda
  • Patent number: 11834586
    Abstract: Provided is a conductive paint that can be cured at a temperature of 110° C. or less and has both excellent conductivity and adhesiveness. The conductive paint includes, per 100 parts by mass of a binder component (A) containing an epoxy resin, 1,000 to 4,000 parts by mass of metal particles (B), 50 to 150 parts by mass of a blocked isocyanate curing agent (C), and 200 to 1,500 parts by mass of a solvent (D).
    Type: Grant
    Filed: July 7, 2020
    Date of Patent: December 5, 2023
    Assignee: TATSUTA ELECTRIC WIRE & CABLE CO., LTD.
    Inventors: Hajime Nakazono, Masamichi Nisogi
  • Publication number: 20230151228
    Abstract: A conductive composition is provided that can be spray coated to form a shielding layer having good shielding capability against 100 MHz to 40 GHz electromagnetic waves, and having desirable adhesion to a package with good laser mark visibility. A method of production of a shielded package with such a conductive composition is also provided.
    Type: Application
    Filed: January 15, 2021
    Publication date: May 18, 2023
    Inventors: Hiroaki UMEDA, Hajime NAKAZONO, Masamichi NISOGI, Hidetoshi NOGUCHI, Kazuhiro MATSUDA
  • Patent number: 11510349
    Abstract: The present invention provides a shield package having a highly distinctive pattern formed on a surface of a shield layer. The shield package of the present invention includes a package in which an electronic component is sealed with a resin layer, and a shield layer covering the package, wherein a surface of the resin layer includes a drawing area drawn with lines and/or dots by aggregation of multiple grooves, and a non-drawing area other than the drawing area, multiple depressions originating from the grooves are formed on a surface of the shield layer on the drawing area, and the depressions are aggregated to draw a pattern with lines and/or dots.
    Type: Grant
    Filed: July 1, 2019
    Date of Patent: November 22, 2022
    Assignee: TATSUTA ELECTRIC WIRE & CABLE CO., LTD.
    Inventors: Hiroaki Umeda, Hidetoshi Noguchi, Hajime Nakazono
  • Publication number: 20220251398
    Abstract: Provided is a conductive paint that can be cured at a temperature of 110° C. or less and has both excellent conductivity and adhesiveness. The conductive paint includes, per 100 parts by mass of a binder component (A) containing an epoxy resin, 1,000 to 4,000 parts by mass of metal particles (B), 50 to 150 parts by mass of a blocked isocyanate curing agent (C), and 200 to 1,500 parts by mass of a solvent (D).
    Type: Application
    Filed: July 7, 2020
    Publication date: August 11, 2022
    Applicant: TATSUTA ELECTRIC WIRE & CABLE CO., LTD.
    Inventors: Hajime Nakazono, Masamichi Nisogi
  • Publication number: 20220030751
    Abstract: The present invention aims to provide a shield package having a highly distinctive patterned portion formed on a surface of a shield layer. The shield package of the present invention includes a package in which an electronic component is sealed with a sealing material, and a shield layer covering the package, wherein a surface of the shield layer includes a patterned portion and a non-patterned portion other than the patterned portion, and a ratio of Sal (autocorrelation length) of the non-patterned portion to Sal of the patterned portion is as follows: (Sal of non-patterned portion)/(Sal of patterned portion)>4.0.
    Type: Application
    Filed: November 19, 2019
    Publication date: January 27, 2022
    Inventors: Hiroaki UMEDA, Hidetoshi NOGUCHI, Hajime NAKAZONO, Sougo ISHIOKA
  • Patent number: 11191198
    Abstract: A shield package is disclosed including: a package in which an electronic component is mounted on a substrate, the electronic component being sealed with sealing material; and a shield layer including a first layer and a second layer that are sequentially laminated on the package, in which the first layer made from a conductive resin composition having 100 parts by mass of a binder component, 400 parts by mass to 1800 parts by mass of metal particles, and 0.3 part by mass to 40 parts by mass of a curing agent, the metal particles include at least spherical metal particles and flaky metal particles, and the second layer made from a conductive resin composition containing a binder component, metal particles haying an average particle diameter of 10 nm to 500 nm, metal particles having an average particle diameter of 1 ?m to 50 ?m, and a radical polymerization initiator.
    Type: Grant
    Filed: September 27, 2018
    Date of Patent: November 30, 2021
    Assignee: TATSUTA ELECTRIC WIRE & CABLE CO., LTD.
    Inventors: Hiroaki Umeda, Kazuhiro Matsuda, Hajime Nakazono, Hidetoshi Noguchi
  • Publication number: 20210076544
    Abstract: The present invention provides a shield package having a highly distinctive pattern formed on a surface of a shield layer. The shield package of the present invention includes a package in which an electronic component is sealed with a resin layer, and a shield layer covering the package, wherein a surface of the resin layer includes a drawing area drawn with lines and/or dots by aggregation of multiple grooves, and a non-drawing area other than the drawing area, multiple depressions originating from the grooves are formed on a surface of the shield layer on the drawing area, and the depressions are aggregated to draw a pattern with lines and/or dots.
    Type: Application
    Filed: July 1, 2019
    Publication date: March 11, 2021
    Inventors: Hiroaki UMEDA, Hidetoshi NOGUCHI, Hajime NAKAZONO
  • Publication number: 20210024758
    Abstract: The present invention provides a conductive coating material curable at low temperatures. The present invention relates to a conductive coating material containing: 100 parts by weight of an epoxy resin-containing binder component (A); 500 to 2500 parts by weight of metal particles (B); 1 to 150 parts by weight of a curing agent (C); 20 to 800 parts by weight of a solvent (D); and 0.5 to 5 parts by weight of a curing catalyst (E).
    Type: Application
    Filed: February 18, 2019
    Publication date: January 28, 2021
    Inventors: Hajime NAKAZONO, Kazuhiro MATSUDA
  • Publication number: 20200288608
    Abstract: A shield package is disclosed including: a package in which an electronic component is mounted on a substrate, the electronic component being sealed with sealing material; and a shield layer including a first layer and a second layer that are sequentially laminated on the package, in which the first layer made from a conductive resin composition having 100 parts by mass of a binder component, 400 parts by mass to 1800 parts by mass of metal particles, and 0.3 part by mass to 40 parts by mass of a curing agent, the metal particles include at least spherical metal particles and flaky metal particles, and the second layer made from a conductive resin composition containing a binder component, metal particles haying an average particle diameter of 10 nm to 500 nm, metal particles having an average particle diameter of 1 ?m to 50 ?m, and a radical polymerization initiator.
    Type: Application
    Filed: September 27, 2018
    Publication date: September 10, 2020
    Applicant: TATSUTA ELECTRIC WIRE & CABLE CO., LTD.
    Inventors: Hiroaki Umeda, Kazuhiro Matsuda, Hajime Nakazono, Hidetoshi Noguchi
  • Publication number: 20190292381
    Abstract: A conductive coating material includes at least (A) 100 parts by mass of binder component containing 5 to 30 parts by mass of solid epoxy resin which is a solid at normal temperature and 20 to 90 parts by mass of liquid epoxy resin which is a liquid at normal temperature; (B) 500 to 1800 parts by mass of metal particles; and (C) 0.3 to 40 parts by mass of hardener, in which the metal particles include (a) spherical metal particles and (b) flaky metal particles, a mass ratio of (a) the spherical metal particles to (b) the flaky metal particles is 25:75 to 75:25 (in terms of (a):(b)), and a viscosity at a liquid temperature of 25° C. of the conductive coating material is 100 to 600 m Pa·s when measured at rotation speed of 0.5 rpm with a cone-plate rotary viscometer.
    Type: Application
    Filed: February 22, 2017
    Publication date: September 26, 2019
    Applicant: TATSUTA ELECTRIC WIRE & CABLE CO., LTD.
    Inventors: Hajime Nakazono, Hiroaki Umeda, Kazuhiro Matsuda, Ken Yukawa
  • Patent number: 10153066
    Abstract: A conductive paste having a viscosity suitable for filling a hole of a board, long pot life, and excellent conductivity and long-term reliability of a cured product, and a multilayer board using the same are provided. A conductive paste comprising with respect to (A) 100 parts by mass of dimer acid-modified epoxy resin, (B) from 200 to 1900 parts by mass of high melting metal powder containing silver-coated copper alloy powder and having a melting point of 800° C. or higher, (C) from 400 to 2200 parts by mass of silver-coated copper alloy powder having a melting point of 800° C. or higher, (D) from 1.0 to 20.0 parts by mass of curing agent containing a hydroxy group-containing aromatic compound, and (E) from 5.0 to 100.0 parts by mass of a flux containing polycarboxylic acid, is used as the present invention.
    Type: Grant
    Filed: February 17, 2016
    Date of Patent: December 11, 2018
    Assignee: Tatsuta Electric Wire & Cable Co., Ltd.
    Inventors: Hajime Nakazono, Norihiro Yamaguchi
  • Publication number: 20170358381
    Abstract: A conductive paste having a viscosity suitable for filling a hole of a board, long pot life, and excellent conductivity and long-term reliability of a cured product, and a multilayer board using the same are provided. A conductive paste comprising with respect to (A) 100 parts by mass of dimer acid-modified epoxy resin, (B) from 200 to 1900 parts by mass of high melting metal powder containing silver-coated copper alloy powder and having a melting point of 800° C. or higher, (C) from 400 to 2200 parts by mass of silver-coated copper alloy powder having a melting point of 800° C. or higher, (D) from 1.0 to 20.0 parts by mass of curing agent containing a hydroxy group-containing aromatic compound, and (E) from 5.0 to 100.0 parts by mass of a flux containing polycarboxylic acid, is used as the present invention.
    Type: Application
    Filed: February 17, 2016
    Publication date: December 14, 2017
    Inventors: Hajime NAKAZONO, Norihiro YAMAGUCHI