Patents by Inventor Takanori MIMA

Takanori MIMA 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: 20200283399
    Abstract: Disclosed is a method of producing a polymerizable compound that enables production of, in high yield, a polymerizable compound used for producing an optical film or the like. The disclosed method of producing a polymerizable compound comprises reacting a compound represented by formula (I) with a compound represented by formula (II) in an organic solvent in which a base having a pKa from 6.1 to 9.5 is present, so as to obtain a reaction solution containing a polymerizable compound represented by formula (III).
    Type: Application
    Filed: March 19, 2018
    Publication date: September 10, 2020
    Applicant: ZEON CORPORATION
    Inventors: Kumi OKUYAMA, Kei SAKAMOTO, Takanori MIMA
  • Publication number: 20200262801
    Abstract: Disclosed is a polymerizable compound useful in the preparation of a polymer which is capable of producing, for example, an optical film having excellent in-plane thickness uniformity and improved in-plane uniformity in optical properties.
    Type: Application
    Filed: March 16, 2018
    Publication date: August 20, 2020
    Applicant: ZEON CORPORATION
    Inventors: Kei SAKAMOTO, Kumi OKUYAMA, Takanori MIMA
  • Publication number: 20200031786
    Abstract: Disclosed is a polymerizable compound useful for preparing a polymer that enables the production of a film, such as an optical film, which has a good balance of lightness and saturation and which can improve reverse wavelength dispersion on the short wavelength side while achieving reverse wavelength dispersion on the longer wavelength side. The polymerizable compound of the present disclosure is represented by: where in the formula (I-1), A1 and A2 each independently represent an aromatic group which may have a substituent, B1 and B2 each independently represent a cyclic aliphatic group which may have a substituent, or, an aromatic group which may have a substituent, and p and q each independently represent an integer from 0 to 2.
    Type: Application
    Filed: March 12, 2018
    Publication date: January 30, 2020
    Applicant: ZEON CORPORATION
    Inventors: Kei SAKAMOTO, Kumi OKUYAMA, Takanori MIMA
  • Publication number: 20190322936
    Abstract: Provided is a polymerizable compound that is useful in production of a polymer with which an optical film or the like having good reverse wavelength dispersion at long wavelengths can be produced. The polymerizable compound is indicated by formula (I-1), shown below. [In formula (I-1), Ar0 represents an aromatic hydrocarbon cyclic group having at least D0 as a substituent or an aromatic heterocyclic group having at least D0 as a substituent, and Ar1 represents an aromatic hydrocarbon cyclic group having at least D1 as a substituent or an aromatic heterocyclic group having at least D1 as a substituent, where D0 and D1 each represent, independently of one another, an organic group having a carbon number of 1 to 67 and including at least one aromatic ring selected from the group consisting of an aromatic hydrocarbon ring and an aromatic heterocyclic ring.
    Type: Application
    Filed: December 13, 2017
    Publication date: October 24, 2019
    Applicant: ZEON CORPORATION
    Inventors: Kei SAKAMOTO, Kumi OKUYAMA, Takanori MIMA
  • Publication number: 20190322872
    Abstract: A polymerizable compound indicated by the following formula (I). In formula (I): Ar represents an optionally substituted aromatic hydrocarbon cyclic group/aromatic heterocyclic group; D represents an organic group having a carbon number of 1 to 67 and including an aromatic ring; Z1, Z2, and Y0 to Y4 each represent atomic bonding; L1 and L2 each represent a chain group; G represents an optionally substituted alicyclic group/aromatic group/alkylene group; A1, A2, B1, and B2 each represent an alicyclic group or an aromatic group; P1 and P2 each represent a hydrogen atom or a polymerizable group; and p and q are each, independently of one another, an integer of 0 to 2, with a proviso that cases in which p=0 and q=1 and in which p=1 and q=2 are excluded.
    Type: Application
    Filed: November 9, 2017
    Publication date: October 24, 2019
    Applicant: ZEON CORPORATION
    Inventors: Kei SAKAMOTO, Kumi OKUYAMA, Takanori MIMA