Patents by Inventor Yuta Maenaka

Yuta Maenaka 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: 20240052165
    Abstract: Provided is a resin composition which makes it possible to obtain a molded product exhibiting excellent flame retardance without significantly degrading the impact resistance characteristics. The resin composition according to the present invention comprises a thermoplastic resin and a polyorganosiloxane-containing polymer, where the resin composition satisfies Expression (1). Y?X?20° C.??(1) (In Expression (1), X means a temperature at which a residual amount of the polyorganosiloxane-containing polymer reaches 1 part by mass in a case where 100 parts by mass of the polyorganosiloxane-containing polymer is heated to 550° C. at 10° C./min under a nitrogen flow rate of 200 mL/min, and Y means a temperature at which a residual amount of the thermoplastic resin reaches 90 parts by mass in a case where 100 parts by mass of the thermoplastic resin is heated to 550° C. at 10° C./min under a nitrogen flow rate of 200 mL/min.
    Type: Application
    Filed: September 11, 2023
    Publication date: February 15, 2024
    Applicant: Mitsubishi Chemical Corporation
    Inventors: Hiroya ARAI, Yuta MAENAKA, Masashi IIMORI
  • Publication number: 20230416441
    Abstract: Provided is a polyorganosiloxane-containing polymer which makes it possible to obtain a molded product exhibiting excellent flame retardance without significantly degrading the impact resistance characteristics in a case where the polyorganosiloxane-containing polymer is added to a resin. The polyorganosiloxane-containing polymer according to the present invention contains alkali metal atoms of 100 ppm by mass or more and has a mass average particle diameter Dw of 350 nm or more.
    Type: Application
    Filed: September 11, 2023
    Publication date: December 28, 2023
    Applicant: Mitsubishi Chemical Corporation
    Inventors: Hiroya ARAI, Yuta MAENAKA, Masashi IIMORI
  • Patent number: 9169281
    Abstract: The present invention provides: a mononuclear metal complex that has high catalytic activity and can be used as a hydrogenation reduction catalyst that allows efficient hydrogenation reduction of a substance to be reduced; a tautomer or stereoisomer thereof; or a salt thereof. Provided is the mononuclear metal complex represented by the following formula (1), a tautomer or stereoisomer thereof; or a salt thereof. In the formula (1), Ar1 is an aromatic anionic ligand or an aromatic ligand, or is not present, Ar2 is a ligand having aromaticity and may or may not be substituted, and when Ar2 is substituted, the number of substituents may be one or more, M is an atom or ion of a transition metal, A1 and A2 are both carbon atoms, or one of A1 and A2 is a carbon atom and the other is a nitrogen atom, Y is an anionic group or a cationic group, or is not present, L is any ligand or is not present, and m is a positive integer, 0, or a negative integer.
    Type: Grant
    Filed: March 4, 2011
    Date of Patent: October 27, 2015
    Assignee: OSAKA UNIVERSITY
    Inventors: Shunichi Fukuzumi, Tomoyoshi Suenobu, Yuta Maenaka
  • Publication number: 20120321550
    Abstract: The present invention provides: a mononuclear metal complex that has high catalytic activity and can be used as a hydrogenation reduction catalyst that allows efficient hydrogenation reduction of a substance to be reduced; a tautomer or stereoisomer thereof; or a salt thereof. Provided is the mononuclear metal complex represented by the following formula (1), a tautomer or stereoisomer thereof; or a salt thereof. In the formula (1), Ar1 is an aromatic anionic ligand or an aromatic ligand, or is not present, Ar2 is a ligand having aromaticity and may or may not be substituted, and when Ar2 is substituted, the number of substituents may be one or more, M is an atom or ion of a transition metal, A1 and A2 are both carbon atoms, or one of A1 and A2 is a carbon atom and the other is a nitrogen atom, Y is an anionic group or a cationic group, or is not present, L is any ligand or is not present, and m is a positive integer, 0, or a negative integer.
    Type: Application
    Filed: March 4, 2011
    Publication date: December 20, 2012
    Applicant: OSAKA UNIVERSITY
    Inventors: Shunichi Fukuzumi, Tomoyoshi Suenobu, Yuta Maenaka