Patents by Inventor Ayaka Yamaji

Ayaka Yamaji 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).

  • HALOGENATED ZINC PHTHALOCYANINE PIGMENT AND PRODUCTION METHOD THEREFOR
    Publication number: 20230147608
    Abstract: A method for producing a halogenated zinc phthalocyanine pigment according to one embodiment includes a first step of obtaining a halogenated zinc phthalocyanine crude pigment by deposition by extracting a halogenated zinc phthalocyanine, which is synthesized by using a compound that generates an acid by reacting with water; and a second step of forming the halogenated zinc phthalocyanine crude pigment into a pigment.
    Type: Application
    Filed: April 30, 2020
    Publication date: May 11, 2023
    Applicant: DIC Corporation
    Inventors: Keisuke Sakamoto, Ayaka Yamaji, Kazushi Suzuki, Mayumi Tokuoka, Katsunori Shimada
  • METHOD FOR PRODUCING HALOGENATED ZINC PHTHALOCYANINE PIGMENT
    Publication number: 20230141091
    Abstract: A method for producing a halogenated zinc phthalocyanine pigment includes a step of forming a halogenated zinc phthalocyanine crude pigment into a pigment. The halogenated zinc phthalocyanine crude pigment is obtained by depositing a halogenated zinc phthalocyanine, which is synthesized by using an acidic compound or a compound that generates an acid by reacting with water, and the step includes a pretreatment step of kneading the halogenated zinc phthalocyanine crude pigment along with water.
    Type: Application
    Filed: April 30, 2020
    Publication date: May 11, 2023
    Applicant: DIC Corporation
    Inventors: Keisuke Sakamoto, Ayaka Yamaji, Kazushi Suzuki, Mayumi Tokuoka, Katsunori Shimada
  • METHOD FOR PRODUCING HALOGENATED ZINC PHTHALOCYANINE PIGMENT
    Publication number: 20230147454
    Abstract: A method for producing a halogenated zinc phthalocyanine pigment includes a step of forming a halogenated zinc phthalocyanine crude pigment into a pigment. The halogenated zinc phthalocyanine crude pigment is obtained by depositing a halogenated zinc phthalocyanine, which is synthesized by using a compound that generates an acid by reacting with water, and the aforementioned step includes a pretreatment step of dry-crushing the halogenated zinc phthalocyanine crude pigment by using an attritor and then washing the dry-crushed halogenated zinc phthalocyanine crude pigment with water.
    Type: Application
    Filed: April 30, 2020
    Publication date: May 11, 2023
    Applicant: DIC Corporation
    Inventors: Keisuke Sakamoto, Ayaka Yamaji, Nozomi Shimizu, Mayumi Tokuoka, Katsunori Shimada
  • COMPOUND
    Publication number: 20220259434
    Abstract: The present invention relates to a compound represented by general formula (I) (in the formula (I), X represents a methyl group or a halogen atom; R1 to R14 each independently represent a hydrogen atom, a halogen atom, a cyano group, an optionally substituted alkyl group having 1 to 8 carbon atoms, or an optionally substituted aromatic hydrocarbon group having 6 to 12 carbon atoms; Bm? represents a polyoxometalate anion; m represents an integer of 1 to 20; n represents an integer of 1 to 20, provided that n is determined such that the charge of the whole formula (I) becomes zero).
    Type: Application
    Filed: June 23, 2020
    Publication date: August 18, 2022
    Applicants: DIC Corporation, HAYASHIBARA CO., LTD.
    Inventors: Yusuke Ozaki, Ayaka Yamaji, Takako Tanaka, Daisuke Kuraoka, Noriaki Neki, Hiroshi Nagaike