Patents by Inventor Sunao NOJIMA

Sunao NOJIMA 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: 11634558
    Abstract: An optical resin material for chromatic aberration correction is provided including at least 5% by mass of a compound (component A) represented by formula (1) or formula (3), in which R1 to R6 each independently represent a structure represented by formula (2), in which the broken line represents a binding site; n1 represents an integer of 0 to 3; n2 represents an integer of 0 or 1; n3 represents an integer of 0 to 4; R7 represents hydrogen, an acryl group, a methacryl group, a cyanoacryl group, a cyclic ether group, an allyl group, a propargyl group, a hydroxy group, an isocyanate group, chlorine, or an optionally branched alkyl group having 1 to 8 carbon atoms; and X represents an alkylene glycol chain having 2 to 7 carbon atoms or a lactone-modified ketone chain, in which R1 to R6 each independently represent a structure represented by formula (2).
    Type: Grant
    Filed: December 17, 2018
    Date of Patent: April 25, 2023
    Assignee: MITSUBISHI GAS CHEMICAL COMPANY, INC.
    Inventors: Kosuke Namiki, Sunao Nojima, Shoko Suzuki, Noriyuki Kato, Hiroshi Horikoshi
  • Publication number: 20200270421
    Abstract: Provided is an optical resin material for chromatic aberration correction, comp including at least 5 mass % of a compound (component A) represented by general formula (1) or general formula (3). (In the formula, R1 to R6 each independently represent a structure represented by general formula (2).) (In the formula, the broken line represents a binding site, n1 represents an integer of 0-3, n2 represents an integer of 0 or 1, n3 represents an integer of 0-4, R7 represents hydrogen, an acryl group, a methacryl group, a cyanoacryl group, a cyclic ether group, an allyl group, a propargyl group, a hydroxy group, an isocyanate group, chlorine, or an optionally branched alkyl group having 1-8 carbon atoms, and X represents a lactone-modified ketone chain or an alkylene glycol chain having 2-7 carbon atoms.) (In the formula, R1 to R6 each independently represent a structure represented by general formula (2).
    Type: Application
    Filed: December 17, 2018
    Publication date: August 27, 2020
    Applicant: MITSUBISHI GAS CHEMICAL COMPANY, INC.
    Inventors: Kosuke NAMIKI, Sunao NOJIMA, Shoko SUZUKI, Noriyuki KATO, Hiroshi HORIKOSHI