Patents by Inventor Naoka HAMADA

Naoka HAMADA 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: 20240279497
    Abstract: An aqueous dispersion and a film forming method are provided. The aqueous dispersion contains water and particles including a resin and a photoradical generator and having a polymerizable group. The polymerizable group includes an ethylenic double bond. The proportion of the number of moles of the photoradical generator relative to the number of moles of the ethylenic double bonds in the particles is 4 mol % or more, and the proportion of the number of moles of the photoradical generator present as a solid relative to the total number of moles of the photoradical generator is 5 mol % or less.
    Type: Application
    Filed: March 14, 2024
    Publication date: August 22, 2024
    Inventors: Shinichiro SEKINE, Shota SUZUKI, Naoka HAMADA
  • Patent number: 12049569
    Abstract: A colored resin particle dispersion containing colored resin particles and water, in which the colored resin particles contain an oil-soluble dye and a polymer P containing a structural unit represented by Formula (1), a structural unit represented by Formula (2), and a hydrophilic group, an ink, an ink set, and an inkjet printing method. L1 represents a chain hydrocarbon group having 4 to 10 carbon atoms, two *1's each represent a bonding position, L2 represents a chain hydrocarbon group having 2 to 25 carbon atoms which may contain an oxygen atom or the like, or a polymer chain having a number-average molecular weight of 500 or greater, Y1 and Y2 each independently represent —O—, —S—, or, —NRz-, Rz represents a hydrogen atom or a hydrocarbon group having 1 to 20 carbon atoms, and two *2's each represent a bonding position.
    Type: Grant
    Filed: July 18, 2021
    Date of Patent: July 30, 2024
    Assignee: FUJIFILM Corporation
    Inventors: Noriaki Sato, Shota Suzuki, Naoka Hamada, Ryoichi Nakano, Masao Ikoshi
  • Publication number: 20240182383
    Abstract: There are provided a compound having at least two phosphor moieties and a structure represented by General Formula (I), and a labeled biological substance. In the formula, X1 to X3 represent —O—, —S—, >NR1, or >CR2R3. R1 to R3 represent a hydrogen atom or a substituent. La and Lb represents a single bond or a divalent linking group. n is an integer of 2 or more. However, at least one among R1 to R3, which are contained in a structure parenthesized in ( )n, La, and Lb includes -(L-O)gRE, where -(L-O)gRE in each of these groups is not bonded to at least any one of a phosphor or a biological substance. L represents an alkylene group, RE represents a hydrogen atom or an alkyl group, and g is 1 to 24. * represents a bonding site.
    Type: Application
    Filed: January 12, 2024
    Publication date: June 6, 2024
    Applicant: FUJIFILM Corporation
    Inventors: Kenji SHIROKANE, Yuji YOSHIMITSU, Naoka HAMADA
  • Publication number: 20240173437
    Abstract: There are provided a compound having two or more phosphor moieties of which light absorption characteristics are equivalent to each other, in which the phosphor moieties adjacent to each other are each linked through a group including a structure represented by General Formula (I), and a labeled biological substance using the compound. In the formula, X1 to X3 represent —O—, —S—, >NR1, or >CR2R3. R1 to R3 represent a hydrogen atom, an alkyl group, an alkenyl group, an alkynyl group, an aryl group, a heteroaryl group, an acyl group, —NR8R9, —OR10, or an anionic group. R1 to R10 represent a hydrogen atom, an alkyl group, an alkenyl group, an alkynyl group, an acyl group, an aryl group, a heteroaryl group, or an anionic group. n is an integer of 2 or more. * represents a bonding site.
    Type: Application
    Filed: January 12, 2024
    Publication date: May 30, 2024
    Applicant: FUJIFILM Corporation
    Inventors: Kenji SHIROKANE, Yuji Yoshimitsu, Naoka Hamada, Yoshinori Kanazawa, Hiroaki Tanaka
  • Publication number: 20240165240
    Abstract: There are provided a compound having a phosphor moiety and a structure represented by General Formula (I), and a labeled biological substance. In the formula, A1 represents a structure represented by General Formula (a1), A2 represents a structure represented by General Formula (a2), and B represents a structure represented by General Formula (b), In the formulae, X1 to X6 represent —O—, —S—, >NR1, or >CR2R3. R1 to R3 represent a hydrogen atom, an alkyl group, an alkenyl group, an alkynyl group, an acyl group, an aryl group, a heteroaryl group, —NR9R10, —OR11, or an anionic group. R9 to R11 represent a hydrogen atom, an alkyl group, an alkenyl group, an alkynyl group, an acyl group, an aryl group, or a heteroaryl group. Y1 represents a hydrogen atom, an alkyl group, an alkenyl group, an alkynyl group, an aryl group, or a heteroaryl group. L1 represents a divalent linking group. l, m, n, and p are an integer of 1 or more. * represents a bonding site.
    Type: Application
    Filed: January 12, 2024
    Publication date: May 23, 2024
    Applicant: FUJIFILM Corporation
    Inventors: Naoka HAMADA, Kenji SHIROKANE, Yuji YOSHIMITSU
  • Publication number: 20240132481
    Abstract: There are provided a compound of Formula (1) and a labeled biological substance having the compound. A ring Z1 and a ring Z2 represent a 6-membered ring formed of a ring-constituting atom selected from a carbon atom and a nitrogen atom. R1 to R4, R11 to R13, L1, and L2 represents specific groups, and n, ?1, and ?2 represent specific numbers. At least one of R11, R12, or R13 contains a carboxy group or a substituent capable of being bonded to a biological substance. the compound represented by Formula (1) has at least one structure represented by —(CH2—CH2—O)m—R21, where R21 represents a specific group, and m represents a specific number. The compound represented by Formula (1) is a neutral compound.
    Type: Application
    Filed: November 19, 2023
    Publication date: April 25, 2024
    Applicant: FUJIFILM Corporation
    Inventors: Yoshinori Kanazawa, Kousuke Watanabe, Hiroaki Tanaka, Hiyoku Nakata, Naoka Hamada, Kazuoki Komiyama, Kazuki Kawai
  • Patent number: 11926125
    Abstract: Provided are a colored resin particle dispersion containing colored resin particles and water, in which the colored resin particles contain a water-insoluble chain polymer and at least one dye selected from the group consisting of an oil-soluble dye, a disperse dye and a vat dye, and the water-insoluble chain polymer has a structure represented by the following General Formula (G), a cyclic structure, and a hydrophilic group, an ink manufactured using the colored resin particle dispersion, an ink set having the ink, an inkjet printing method using the ink, and a method of manufacturing the colored resin particle dispersion. In the General Formula (G), Rg represents a hydrogen atom or a substituent, Lg represents —O—, —S—, or —NRz-, Rz represents a hydrogen atom or a substituent, and * represents a bonding position.
    Type: Grant
    Filed: January 20, 2021
    Date of Patent: March 12, 2024
    Assignee: FUJIFILM Corporation
    Inventors: Shota Suzuki, Noriaki Sato, Naoka Hamada, Ryoichi Nakano, Masao Ikoshi
  • Publication number: 20220380613
    Abstract: An ink composition including water, a pigment, a pigment dispersion polymer A, and a water-soluble polymer B different from the pigment dispersion polymer A, in which the water-soluble polymer B contains a specific acid group and a constitutional unit represented by Formula (1), an ink set, and an image recording method. R1, R11, Y1, and Y2 each independently represent a hydrogen atom or a monovalent substituent, and L1 and L2 each independently represent a divalent linking group or a single bond. Y1 and Y2 may be bonded to each other to form a nitrogen-containing heterocycle with L1, L2, and N.
    Type: Application
    Filed: July 26, 2022
    Publication date: December 1, 2022
    Applicant: FUJIFILM Corporation
    Inventors: Naoka Hamada, Atsushi Kaeriyama, Shota Suzuki, Fumiko Tamakuni
  • Publication number: 20220372320
    Abstract: An ink set including an ink containing water, a pigment, a pigment dispersion polymer A, and a water-soluble polymer B, and a treatment liquid containing water and at least one selected from the group consisting of a polyvalent metal salt, an acidic compound, and a cationic polymer, in which the pigment dispersion polymer A contains a specific acid group and an aromatic ring, and the water-soluble polymer B contains a specific acid group and a constitutional unit represented by General Formula (1), and in the ink, a mass ratio of a content concentration of the water-soluble polymer B to a content concentration of the pigment dispersion polymer A in a liberated polymer is 1.6 or more, and an image recording method. R1 represents a hydrogen atom or a monovalent substituent, Y1 represents a monovalent substituent, A1 represents —O—, and L1 is a divalent linking group.
    Type: Application
    Filed: July 22, 2022
    Publication date: November 24, 2022
    Applicant: FUJIFILM Corporation
    Inventors: Naoka HAMADA, Atsushi KAERIYAMA, Shota SUZUKI
  • Publication number: 20220213341
    Abstract: Provided are a colored resin particle dispersion containing water and colored resin particles containing a polymer P containing a hydrophilic group and an oil-soluble dye, in which the oil-soluble dye includes an oil-soluble dye (D) obtained by modifying a water-soluble reactive dye with an alkyl group having 4 or more carbon atoms, or exchanging a counter cation in an acid dye with an organic cation containing an alkyl group having 4 or more carbon atoms, an ink, an ink set, an ink jet textile printing method, and a printed textile product.
    Type: Application
    Filed: March 25, 2022
    Publication date: July 7, 2022
    Inventors: Shota SUZUKI, Fumiko TAMAKUNI, Naoka HAMADA, Noriaki SATO
  • Publication number: 20210340399
    Abstract: A colored resin particle dispersion containing colored resin particles and water, in which the colored resin particles contain an oil-soluble dye and a polymer P containing a structural unit represented by Formula (1), a structural unit represented by Formula (2), and a hydrophilic group, an ink, an ink set, and an inkjet printing method. L1 represents a chain hydrocarbon group having 4 to 10 carbon atoms, two *1's each represent a bonding position, L2 represents a chain hydrocarbon group having 2 to 25 carbon atoms which may contain an oxygen atom or the like, or a polymer chain having a number-average molecular weight of 500 or greater, Y1 and Y2 each independently represent —O—, —S—, or, —NRz-, Rz represents a hydrogen atom or a hydrocarbon group having 1 to 20 carbon atoms, and two *2's each represent a bonding position.
    Type: Application
    Filed: July 18, 2021
    Publication date: November 4, 2021
    Applicant: FUJIFILM Corporation
    Inventors: Noriaki SATO, Shota SUZUKI, Naoka HAMADA, Ryoichi NAKANO, Masao IKOSHI
  • Publication number: 20210138776
    Abstract: Provided are a colored resin particle dispersion containing colored resin particles and water, in which the colored resin particles contain a water-insoluble chain polymer and at least one dye selected from the group consisting of an oil-soluble dye, a disperse dye and a vat dye, and the water-insoluble chain polymer has a structure represented by the following General Formula (G), a cyclic structure, and a hydrophilic group, an ink manufactured using the colored resin particle dispersion, an ink set having the ink, an inkjet printing method using the ink, and a method of manufacturing the colored resin particle dispersion. In the General Formula (G), Rg represents a hydrogen atom or a substituent, Lg represents —O—, —S—, or —NRz-, Rz represents a hydrogen atom or a substituent, and * represents a bonding position.
    Type: Application
    Filed: January 20, 2021
    Publication date: May 13, 2021
    Applicant: FUJIFILM Corporation
    Inventors: Shota SUZUKI, Noriaki SATO, Naoka HAMADA, Ryoichi NAKANO, Masao IKOSHI