Patents by Inventor Takanori KOBATAKE

Takanori KOBATAKE 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).

  • Publication number: 20230077759
    Abstract: Provided are a dispersion medium for metal particle sintering that gives an electroconductive paste whereby metal particles are satisfactorily sintered at a low temperature even when not in a reducing atmosphere, and an electroconductive paste in which the dispersion medium is used. The dispersion medium for metal particle sintering according to an embodiment of the present disclosure contains formic acid and a basic compound, the basic compound being a nitrogen-containing compound represented by Formula (1), and a molar ratio (basic group/formic acid) of basic groups included in the basic compound to formic acid being from 0.50 to 1.20.
    Type: Application
    Filed: February 2, 2021
    Publication date: March 16, 2023
    Applicant: DAICEL CORPORATION
    Inventors: Takanori KOBATAKE, Katsuaki SUGANUMA, Shuhei TAKATA
  • Publication number: 20220275247
    Abstract: An object of the present disclosure is to provide a paste that can suppress fluctuations in viscosity at a printing temperature to perform printing without unevenness, and is sintered fast even in an inert gas atmosphere such as nitrogen to form a highly accurate conductive wiring and a joined structure excellent in joining strength. The present disclosure provides an adhesive conductive paste for forming a conductive wiring and/or a joined structure to connect electronic elements, the adhesive conductive paste including a conductive particle and a solvent. The adhesive conductive paste contains, as the conductive particle, a silver particle (A) having an average particle size of 1 nm or greater and less than 100 nm and a silver particle (B) having an average particle size of 0.
    Type: Application
    Filed: August 4, 2020
    Publication date: September 1, 2022
    Applicant: DAICEL CORPORATION
    Inventors: Takanori KOBATAKE, Tomoya EGAWA, Yasuyuki AKAI
  • Patent number: 10703856
    Abstract: The present invention relates to an epoxy resin composition containing an alicyclic epoxy compound (A), a polymer polyol having two or more terminal hydroxyl groups (B), and a Lewis acid-amine complex (C). The present invention provides an epoxy resin composition which can be cured by heating at low temperatures, and suppresses heat generation associated with curing (heat generation by curing). It is preferable that the epoxy resin composition further contains an antioxidant. Furthermore, it is preferable that the antioxidant is a phosphite ester compound.
    Type: Grant
    Filed: May 19, 2015
    Date of Patent: July 7, 2020
    Assignee: DAICEL CORPORATION
    Inventor: Takanori Kobatake
  • Publication number: 20170096522
    Abstract: The present invention relates to an epoxy resin composition containing an alicyclic epoxy compound (A), a polymer polyol having two or more terminal hydroxyl groups (B), and a Lewis acid-amine complex (C). The present invention provides an epoxy resin composition which can be cured by heating at low temperatures, and suppresses heat generation associated with curing (heat generation by curing). It is preferable that the epoxy resin composition further contains an antioxidant. Furthermore, it is preferable that the antioxidant is a phosphite ester compound.
    Type: Application
    Filed: May 19, 2015
    Publication date: April 6, 2017
    Applicant: DAICEL CORPORATION
    Inventor: Takanori KOBATAKE
  • Publication number: 20160122466
    Abstract: An object of the present invention is to provide a curable epoxy resin composition, which is cured to provide a cured product having a high glass-transition temperature and particularly having excellent balance between heat resistance and transparency. The present invention relates to a curable epoxy resin composition comprising an alicyclic epoxy compound (A) represented by the following formula (1) and a curing agent (B), or a curable epoxy resin composition comprising an alicyclic epoxy compound (A) represented by the following formula (1) and a curing catalyst (C). wherein R1 to R22, which may be the same or different, each represent a hydrogen atom, a methyl group or an ethyl group; and m and n, which may be the same or different, each represent an integer of 1 to 4.
    Type: Application
    Filed: May 7, 2014
    Publication date: May 5, 2016
    Applicant: DAICEL CORPORATION
    Inventors: Ryota NAKAMURA, Daisuke TANIDA, Kyuhei KITAO, Takanori KOBATAKE