Patents by Inventor Kota KINJO

Kota KINJO 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).

  • PHOTOCURABLE COMPOSITION, CURED PRODUCT THEREOF, AND OPTICAL MATERIAL CONTAINING SAID CURED PRODUCT
    Publication number: 20240084136
    Abstract: According to the present invention, there can be provided a photocurable composition comprising a sulfur (a) having a cyclic structure represented by the following formula (1), an episulfide compound (b), and a photopolymerization initiator (c), wherein the content of the sulfur (a) is 1 to 28 parts by mass, with respect to the total mass (100 parts by mass) of the sulfur (a) and the episulfide compound (b):
    Type: Application
    Filed: January 11, 2022
    Publication date: March 14, 2024
    Inventors: Kota KINJO, Kosuke NAMIKI, Kikuo FURUKAWA, Eiji KOSHIISHI
  • Optical material composition and optical material
    Patent number: 10767015
    Abstract: The present invention makes it possible to provide an optical material composition containing an episulfide compound (A), a polythiol compound (B), and a photochromic compound (C). The episulfide compound (A) is preferably a compound represented by formula (1), and the polythiol compound (B) is preferably a compound represented by formula (6). (In formula (1), m represents an integer of 0 to 4, and n represents an integer of 0 to 2.) (In formula (6), n represents an integer of 4 to 20, and R1 and R2 may be the same or different and represent H, SH, C1-10 alkyl groups, or C1-10 alkylthiol groups.
    Type: Grant
    Filed: July 5, 2016
    Date of Patent: September 8, 2020
    Assignee: MITSUBISHI GAS CHEMICAL COMPANY, INC.
    Inventors: Kota Kinjo, Yoshiaki Yamamoto, Hiroshi Horikoshi
  • OPTICAL MATERIAL COMPOSITION AND OPTICAL MATERIAL
    Publication number: 20180127550
    Abstract: The present invention makes it possible to provide an optical material composition containing an episulfide compound (A), a polythiol compound (B), and a photochromic compound (C). The episulfide compound (A) is preferably a compound represented by formula (1), and the polythiol compound (B) is preferably a compound represented by formula (6). (In formula (1), m represents an integer of 0 to 4, and n represents an integer of 0 to 2.) (In formula (6), n represents an integer of 4 to 20, and R1 and R2 may be the same or different and represent H, SH, C1-10 alkyl groups, or C1-10 alkylthiol groups.
    Type: Application
    Filed: July 5, 2016
    Publication date: May 10, 2018
    Applicant: MITSUBISHI GAS CHEMICAL COMPANY, INC.
    Inventors: Kota KINJO, Yoshiaki YAMAMOTO, Hiroshi HORIKOSHI