Patents by Inventor Ichiro Koyama

Ichiro Koyama 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: 10287458
    Abstract: A laminate includes, sequentially and adjacent to each other: a first base material; a temporary adhesion film; and a second base material, in which the tensile elastic modulus E of the temporary adhesion film at 25° C. in conformity with JIS K 7161:1994 is in a range of 25 to 2000 MPa. A base material is peeled off by fixing any one of the first base material and the second base material of the laminate at 25° C. and pulling an end portion of the other base material up in a direction perpendicular to the surface of the other base material from an interface with the temporary adhesion film at a speed of 50 mm/min, and the force applied during the pulling is measured using a force gauge and the value is 0.33 N/mm or less.
    Type: Grant
    Filed: September 21, 2017
    Date of Patent: May 14, 2019
    Assignee: FUJIFILM Corporation
    Inventors: Yoshitaka Kamochi, Yu Iwai, Mitsuru Sawano, Ichiro Koyama, Atsushi Nakamura
  • Publication number: 20190077980
    Abstract: Provided are an aqueous dispersion including a microcapsule that contains a core and a shell; a dispersant that is at least one of a carboxylic acid (A) represented by Formula (A) or a salt of the carboxylic acid (A); and water, a method for manufacturing the aqueous dispersion, and an image forming method using the aqueous dispersion [in Formula (A), L represents a divalent linking group, X represents O, NH, or, NR2, R1 represents a hydrocarbon group having 9 or more carbon atoms, R2 represents a hydrocarbon group having 1 to 20 carbon atoms, and n represents 0 or 1].
    Type: Application
    Filed: November 13, 2018
    Publication date: March 14, 2019
    Inventors: Noriaki SATO, Shota SUZUKI, Ichiro KOYAMA
  • Publication number: 20190048218
    Abstract: Provided is an ink jet recording method, including a step of jetting, on a substrate, an ink composition A that contains a microcapsule having at least a polymerizable compound within the microcapsule, a high boiling solvent, water, and a colorant, and an ink composition B that contains a microcapsule having at least a polymerizable compound within the microcapsule, a high boiling solvent, water, and carbon black; and a step of heating the ink composition A and the ink composition B which have been jetted on the substrate, in which absorbance ABSA of the ink composition A and absorbance ABSB of the ink composition B satisfy Formula (1), and a concentration MA of the high boiling solvent contained in the ink composition A and a concentration MB of the high boiling solvent in the ink composition B satisfy Formula (2).
    Type: Application
    Filed: October 18, 2018
    Publication date: February 14, 2019
    Inventors: Tsutomu UMEBAYASHI, Ichiro KOYAMA, Shota SUZUKI, Noriaki SATO
  • Publication number: 20190023922
    Abstract: An ink composition including: a microcapsule having: a shell having a three-dimensional cross-linked structure including at least one of a urethane bond or a urea bond; and a core encapsulated by the shell; a colorant selected from the group consisting of a colorant having an ionic group and a colorant at least a part of a surface of which being covered with a dispersant having an ionic group; and water, a content ratio of an acidic group-containing compound having at least an acidic group, an acid dissociation constant of 5 or less, and a molecular weight of 2000 or less, relative to a total mass of the ink composition, is 0.5 mass % or less; an ink set, a method for producing an ink composition, and an image recording method.
    Type: Application
    Filed: July 30, 2018
    Publication date: January 24, 2019
    Inventors: Ichiro KOYAMA, Noriaki SATO, Shota SUZUKI, Tsutomu UMEBAYASHI
  • Publication number: 20190023921
    Abstract: Provided are an aqueous dispersion including a microcapsule that has a shell having a three-dimensional cross-linked structure containing at least one bond selected from a urethane bond or a urea bond, and has a core, in which at least one of the shell or the core has a polymerizable group, including a dispersant that has at least one bond selected from a urethane bond or a urea bond and a hydrophilic group, and including water; a method for manufacturing the aqueous dispersion; and an image forming method using the aqueous dispersion.
    Type: Application
    Filed: July 30, 2018
    Publication date: January 24, 2019
    Inventors: Noriaki SATO, Ichiro KOYAMA, Shota SUZUKI
  • Publication number: 20190023918
    Abstract: Provided are an aqueous dispersion including a microcapsule and water, the microcapsule including: a shell having a three-dimensional cross-linked structure containing: at least one bond selected from a urethane bond or a urea bond; and an anionic group and a nonionic group as hydrophilic groups; and a core, at least one of the shell having a photopolymerization initiating group or the core containing a photopolymerization initiator being satisfied, and at least one of the shell having a polymerizable group or the core containing a polymerizable compound being satisfied; a method for manufacturing the same; and an image forming method using the aqueous dispersion.
    Type: Application
    Filed: July 30, 2018
    Publication date: January 24, 2019
    Inventors: Ichiro KOYAMA, Noriaki SATO, Shota SUZUKI
  • Publication number: 20190023920
    Abstract: Provided are an aqueous dispersion including a microcapsule, and water, the microcapsule including: a shell having a three-dimensional cross-linked structure containing at least one neutralized acid group and at least one bond selected from a urethane bond or a urea bond, in which a degree of neutralization of the acid group contained in the three-dimensional cross-linked structure is from 50% to 100%; and a core, at least one of the shell or the core has a polymerizable group; a method for manufacturing the same; and an image forming method using the aqueous dispersion.
    Type: Application
    Filed: July 30, 2018
    Publication date: January 24, 2019
    Inventors: Ichiro KOYAMA, Noriaki SATO, Shota SUZUKI
  • Publication number: 20180346742
    Abstract: Provided are an ink composition including water; and a microcapsule which includes: a shell that has a three-dimensional cross-linked structure containing at least one bond selected from a urethane bond or a urea bond, and including a core that contains a di- or lower functional polymerizable compound, a tri- or higher functional polymerizable compound, and a photopolymerization initiator, in which a proportion of the di- or lower functional polymerizable compound is 20% by mass or more with respect to a total mass of the di- or lower functional polymerizable compound and the tri- or higher functional polymerizable compound, and an image forming method using the ink composition.
    Type: Application
    Filed: July 24, 2018
    Publication date: December 6, 2018
    Inventors: Noriaki SATO, Ichiro KOYAMA, Shota SUZUKI
  • Publication number: 20180320017
    Abstract: An ink jet recording method has an ejection step of ejecting, onto a substrate, an ink composition A that includes water, a coloring agent, a photopolymerization initiator, and a microcapsule enclosing a polymerizable compound therein, and an ink composition B that includes water, a coloring agent, a photopolymerization initiator, and a microcapsule enclosing a polymerizable compound therein; and an irradiation step of irradiating, with light, the ink composition A and the ink composition B ejected on the substrate. An absorbance ABSA of the ink composition A and an absorbance ABSB of the ink composition B satisfy a formula (1), and a concentration MA of the microcapsule included in the ink composition A and a concentration MB of the microcapsule included in the ink composition B satisfy a formula (2).
    Type: Application
    Filed: July 17, 2018
    Publication date: November 8, 2018
    Inventors: Tsutomu UMEBAYASHI, Ichiro KOYAMA, Shota SUZUKI, Noriaki SATO
  • Publication number: 20180320012
    Abstract: Provided are a microcapsule including a shell that has a three-dimensional cross-linked structure containing a hydrophilic group and Structure (1) and including a core that is in the interior of the shell, in which at least one of the shell or the core has a polymerizable group; and an application thereof In Structure (1), X represents a (p+m+n)-valent organic group formed by linking at least two groups selected from —NH—, >N—, —C(?O)—, —O—, —S—, and an aliphatic hydrocarbon group which may have a ring structure, provided that an organic group having an aromatic ring is excluded from X, R1 to R3 represent an aliphatic hydrocarbon group having 5 to 15 carbon atoms which may have a ring structure, provided that an aliphatic hydrocarbon group having an aromatic ring is excluded from R1 to R3, and * represents a binding position, each of p, m, and n is equal to or greater than 0, and p+m+n equals 3 or greater.
    Type: Application
    Filed: July 12, 2018
    Publication date: November 8, 2018
    Inventors: Noriaki SATO, Ichiro KOYAMA, Shota SUZUKI
  • Patent number: 9966295
    Abstract: A temporary bonding laminate for use in the manufacture of semiconductor devices and a method for manufacturing semiconductor devices are provided. A member to be processed (a semiconductor wafer or the like) can be temporarily supported securely and readily during a mechanical or chemical process of the member, and then the processed member can be readily released from the temporary support without damaging the processed member even after a high temperature process. The laminate includes: (A) a release layer and (B) an adhesive layer. The release layer contains (a1) a compound being liquid at 25° C. and having a 5% mass reduction temperature of 250° C. or more when measured in a nitrogen gas stream under heating conditions of a constant heating rate of 20° C./min; and (a2) a binder having a 5% mass reduction temperature of 250° C. or more when measured under the same conditions.
    Type: Grant
    Filed: September 25, 2015
    Date of Patent: May 8, 2018
    Assignee: FUJIFILM Corporation
    Inventors: Ichiro Koyama, Yu Iwai, Kazuhiro Fujimaki
  • Publication number: 20180118887
    Abstract: Provided are photosensitive resin compositions having a wide exposure latitude, a precursor composition for providing such a photosensitive resin composition, a method for producing a precursor composition, a cured film, a method for producing a cured film; and a semiconductor device. The precursor composition is a precursor composition containing at least one kind of heterocycle-containing polymer precursor, in which the heterocycle-containing polymer precursor is selected from a polyimide precursor and a polybenzoxazole precursor; and the dispersity which is a weight-average molecular weight/a number-average molecular weight of the heterocycle-containing polymer precursor is 2.5 or more.
    Type: Application
    Filed: December 22, 2017
    Publication date: May 3, 2018
    Applicant: FUJIFILM Corporation
    Inventors: Akinori SHIBUYA, Yu IWAI, Takeshi KAWABATA, Ichiro KOYAMA
  • Patent number: 9929376
    Abstract: Provided are a laminate which is capable of forming an excellent organic semiconductor pattern, a kit for manufacturing an organic semiconductor, which is used to manufacture such a laminate, and a resist composition for manufacturing an organic semiconductor, which is used for the kit for manufacturing an organic semiconductor. The laminate includes an organic semiconductor film, a protective film on the organic semiconductor film, and a resist film on the protective film, in which the resist film is formed of a photosensitive resin composition that contains a photoacid generator (A) which generates an organic acid of which a pKa of the generated acid is ?1 or less and a resin (B) which reacts with an acid generated by the photoacid generator so that the rate of dissolution in a developer containing an organic solvent is decreased.
    Type: Grant
    Filed: April 27, 2016
    Date of Patent: March 27, 2018
    Assignee: FUJIFILM Corporation
    Inventors: Kazuyoshi Mizutani, Yu Iwai, Ichiro Koyama, Yoshitaka Kamochi
  • Publication number: 20180016471
    Abstract: To provide a laminate, a temporary adhesion composition, and a temporary adhesion film which are capable of making warpage less likely to occur even when a wafer is thin. Provided is a laminate including, sequentially being adjacent to each other: a first base material; a temporary adhesion film; and a second base material, in which a tensile elastic modulus E of the temporary adhesion film at 25° C. in conformity with JIS K 7161:1994 is in a range of 25 to 2000 MPa, a base material is peeled off by fixing any one of a first base material and a second base material of the laminate at 25° C. and pulling an end portion of the other base material up in a direction perpendicular to the surface of the other base material from an interface with the temporary adhesion film at a speed of 50 mm/min, and the force applied during the pulling is measured using a force gauge and the value is 0.33 N/mm or less.
    Type: Application
    Filed: September 21, 2017
    Publication date: January 18, 2018
    Applicant: FUJIFILM Corporation
    Inventors: Yoshitaka KAMOCHI, Yu IWAI, Mitsuru SAWANO, Ichiro KOYAMA, Atsushi NAKAMURA
  • Publication number: 20180012751
    Abstract: Provided are a kit and a laminate which are capable of suppressing residues derived from a temporary adhesive in manufacture of a semiconductor. The kit for manufacturing a semiconductor device includes a composition which contains a solvent A; a composition which contains a solvent B; and a composition which contains a solvent C, in which the kit is used when a temporary adhesive layer is formed on a first substrate using a temporary adhesive composition containing a temporary adhesive and the solvent A, at least some of an excessive amount of the temporary adhesive on the first substrate is washed using the composition containing the solvent B, a laminate is manufactured by bonding the first substrate and a second substrate through the temporary adhesive layer, one of the first substrate and the second substrate is peeled off from the laminate at a temperature of lower than 40° C.
    Type: Application
    Filed: September 22, 2017
    Publication date: January 11, 2018
    Applicant: FUJIFILM Corporation
    Inventors: Yoshitaka KAMOCHI, Yu IWAI, Ichiro KOYAMA, Atsushi NAKAMURA
  • Patent number: 9746771
    Abstract: There is provided a laminate body which is capable of forming an excellent pattern on an organic semiconductor. A laminate body includes at least a water-soluble resin film and a resist film formed of a chemically amplified photosensitive resin composition on a surface of an organic semiconductor film in this order, in which the chemically amplified photosensitive resin composition contains a photoacid generator which is decomposed in an amount of 80% by mole or greater when exposed to light under the condition of 100 mJ/cm2 or greater at a wavelength of 365 nm, a mask pattern is formed by an exposed portion being hardly soluble in a developer containing an organic solvent, and the formed mask pattern is used as an etching mask.
    Type: Grant
    Filed: February 19, 2016
    Date of Patent: August 29, 2017
    Assignee: FUJIFILM Corporation
    Inventors: Yoshitaka Kamochi, Ichiro Koyama, Yu Iwai, Atsushi Nakamura
  • Patent number: 9716024
    Abstract: Provided is temporary bonding laminates for used in a manufacture of semiconductor devices, by which a member to be processed can be temporarily supported securely and readily during a mechanical or chemical process of the member to be processed and then the processed member can be readily released from the temporary support without damaging the processed member even after a high temperature process, and processes for manufacturing semiconductor devices. The temporary bonding laminate includes comprising (A) a release layer and (B) an adhesive layer wherein the release layer (A) comprises (a1) a resin 1 having a softening point of 200° C. or more and (a2) a resin 2; the resin 2 after curing has capable of being dissolved at 5% by mass or more, at 25° C., in at least one of solvents selected from hexane and the like.
    Type: Grant
    Filed: September 25, 2015
    Date of Patent: July 25, 2017
    Assignee: FUJIFILM Corporation
    Inventors: Ichiro Koyama, Yu Iwai
  • Patent number: 9716025
    Abstract: Provided is temporary bonding laminates for used in a manufacture of semiconductor devices, by which a member to be processed (a semiconductor wafer or the like) can be temporarily supported securely and readily during a mechanical or chemical process of the member to be processed and then the processed member can be readily released from the temporary support without damaging the processed member even after a high temperature process, and processes for manufacturing semiconductor devices. The temporary bonding laminate includes (A) a release layer and (B) an adhesive layer, wherein the release layer (A) comprises (a1) a first release layer having a softening point of 200° C. or more and adjoining the adhesive layer (B), and (a2) a second release layer adjoining the first release layer (a1); the second release layer (a2) contains a resin; and the resin after curing has a capable of being dissolved at 5% by mass or more, at 25° C., in at least one kind of solvents selected from hexane and the like.
    Type: Grant
    Filed: September 25, 2015
    Date of Patent: July 25, 2017
    Assignee: FUJIFILM Corporation
    Inventors: Ichiro Koyama, Yu Iwai, Masafumi Yoshida
  • Publication number: 20170198176
    Abstract: Provided are a composition which has good elastomer solubility, is thus capable of increasing a concentration of solid contents, and is capable of forming a film having excellent drying properties, surface morphology, and heat resistance, a process for producing a sheet, a sheet, a laminate, and a laminate with a device wafer. This composition includes an elastomer having a 5% thermal mass reduction temperature of 375° C. or higher when heated at an elevation rate of 20° C./min from 25° C., a solvent represented by the following General Formula (1) and having a boiling point of 160° C. or higher, and a solvent having a boiling point of lower than 120° C. In General Formula (1), R1 to R6 each independently represent a hydrogen atom or an aliphatic hydrocarbon group.
    Type: Application
    Filed: March 24, 2017
    Publication date: July 13, 2017
    Applicant: FUJIFILM Corporation
    Inventors: Yoshitaka KAMOCHI, Ichiro KOYAMA, Yu IWAI, Atsushi NAKAMURA, Mitsuru SAWANO
  • Publication number: 20170101521
    Abstract: Provided are a thermal base generator which is capable of performing cyclization of a. thermosetting resin at a low temperature and with which a thermosetting resin composition having excellent stability can be prepared, a thermosetting resin composition, a cured film, a cured film manufacturing method, and a semiconductor device. The thermal base generator includes at least one selected from an acidic compound which generates a base in a case of being heated to 40° C. or higher, and an ammonium salt containing an anion having a pKa1 of 0 to 4 and an ammonium cation. The acidic compound is preferably an ammonium salt and/or a compound represented by the following General Formula (1), in which A1 represents a p-valent organic group, R1 represents a monovalent organic group, L1 represents an (m+1)-valent organic group, m represents an integer of 1 or more, and p represents an integer of 1 or more.
    Type: Application
    Filed: December 23, 2016
    Publication date: April 13, 2017
    Applicant: FUJIFILM Corporation
    Inventor: Ichiro KOYAMA