Patents by Inventor Kunihiro Fujita

Kunihiro Fujita 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: 20240124734
    Abstract: An aqueous ink jet ink composition includes a coloring material, a betaine, an acetylene glycol-based surfactant, and a water-soluble urethane resin.
    Type: Application
    Filed: September 28, 2023
    Publication date: April 18, 2024
    Inventors: Keisuke MORITA, Kunihiro FUJITA
  • Publication number: 20230393082
    Abstract: A nondestructive inspecting device (10) includes a neutron emission device (2) that emits a neutron beam to a local irradiation location on a surface (la) of an inspection target (1), a detection device (3) that detects, at each of inspection positions facing the surface (la), scattered neutrons returned from the inspection target (1) as a result of emission of the neutron beam to the irradiation location, and measures the detected number of the scattered neutrons at each of the detection positions, and a ratio calculation unit (5) that calculates, for each of the detection positions, a ratio of the detected number at the detection position to a reference value for the detection position, and outputs the ratios. The reference value is set as the detected number at each of the detection positions in an assumed case of no defects existing in the inspection target (1).
    Type: Application
    Filed: October 15, 2021
    Publication date: December 7, 2023
    Applicant: RIKEN
    Inventors: Kunihiro FUJITA, Chihiro IWAMOTO, Takaoki TAKANASHI, Yoshie OTAKE
  • Publication number: 20230303871
    Abstract: An ink jet ink composition which is a water-based ink, includes a self-dispersible pigment, inorganic oxide particles, and a poly(ethylene glycol) represented by the following general formula (I), and the ink composition contains at least one type of metal ion selected from the group consisting of a potassium ion, a sodium ion, and a lithium ion. HO—(CH2—CH2—O—)n—H??(I) In the above formula, n represents an integer of 3 to 9.
    Type: Application
    Filed: March 27, 2023
    Publication date: September 28, 2023
    Inventor: Kunihiro FUJITA
  • Patent number: 11648790
    Abstract: An ink jet recording method performs recording on a recording medium using a white ink composition, a non-white ink composition, and a treatment liquid containing an aggregating agent, the method including: a treatment liquid adhesion step of adhering the treatment liquid to the recording medium to form a treatment liquid layer; a non-white ink adhesion step of adhering the non-white ink composition to the recording medium by ejection thereof from an ink jet head to form a non-white ink layer; and a white ink adhesion step of adhering the white ink composition to the recording medium by ejection thereof from an ink jet head to form a white ink layer. The recording medium has a region in which the non-white ink layer, the white ink layer, and the treatment liquid layer are overlapped with each other, at least one of the ink compositions contains resin particles and a water-soluble resin, and the water-soluble resin has a glass transition temperature higher than that of a resin of the resin particles.
    Type: Grant
    Filed: October 30, 2020
    Date of Patent: May 16, 2023
    Inventors: Kunihiro Fujita, Ippei Okuda
  • Publication number: 20220332963
    Abstract: A recording method of the present disclosure includes: an adhesion step of ejecting an ink composition from an ink jet head so as to be adhered to a recording medium; and a primary heating step of heating the ink composition adhered to the recording medium in the adhesion step, and the ink composition is a water-based ink containing an organic compound which is a solid at 25° C. having a standard boiling point of 280° C. or less and which has a solubility of 50 [g/100 g of water] or more in water at 25° C.
    Type: Application
    Filed: April 12, 2022
    Publication date: October 20, 2022
    Inventor: Kunihiro FUJITA
  • Publication number: 20210179873
    Abstract: An ink jet printing method includes an ink application step of ejecting at least an aqueous ink composition onto a printing medium from an ink jet head having a circulation path system through which the ink composition circulates. The ink composition contains resin particles made of a resin having an acid value of 10 mg KOH/g or less and an amino alcohol having a normal boiling point of 320° C. or less and optionally a pigment as a coloring material. The resin particles and the pigment, in total, account for 17% or less relative to the total mass of the ink composition.
    Type: Application
    Filed: December 11, 2020
    Publication date: June 17, 2021
    Inventor: Kunihiro FUJITA
  • Publication number: 20210129569
    Abstract: An ink jet recording method performs recording on a recording medium using a white ink composition, a non-white ink composition, and a treatment liquid containing an aggregating agent, the method including: a treatment liquid adhesion step of adhering the treatment liquid to the recording medium to form a treatment liquid layer; a non-white ink adhesion step of adhering the non-white ink composition to the recording medium by ejection thereof from an ink jet head to form a non-white ink layer; and a white ink adhesion step of adhering the white ink composition to the recording medium by ejection thereof from an ink jet head to form a white ink layer. The recording medium has a region in which the non-white ink layer, the white ink layer, and the treatment liquid layer are overlapped with each other, at least one of the ink compositions contains resin particles and a water-soluble resin, and the water-soluble resin has a glass transition temperature higher than that of a resin of the resin particles.
    Type: Application
    Filed: October 30, 2020
    Publication date: May 6, 2021
    Inventors: Kunihiro FUJITA, Ippei OKUDA
  • Patent number: 10808135
    Abstract: Provided is an ink-jet ink composition for a pressure-adhesion recording target medium. The ink-jet ink composition contains a pigment, a resin, an organic solvent, a surfactant, and water.
    Type: Grant
    Filed: March 6, 2019
    Date of Patent: October 20, 2020
    Assignee: Seiko Epson Corporation
    Inventors: Kunihiro Fujita, Takuya Takahashi, Yusuke Mizutaki
  • Patent number: 10731043
    Abstract: An aqueous ink jet ink composition contains a pigment, propylene glycol, and water, in which the aqueous ink jet ink composition has the viscosity of 3.0 mm2/s or more and 10.0 mm2/s or less at 20° C., the aqueous ink jet ink composition has the pH of 7 or more, the content of the pigment is 5.5% by mass or more and 9% by mass or less based on the total amount of the aqueous ink jet ink composition, and the content of the propylene glycol is 8 parts by mass or more and 100 parts by mass or less based on 100 parts by mass of the pigment.
    Type: Grant
    Filed: April 11, 2018
    Date of Patent: August 4, 2020
    Assignee: Seiko Epson Corporation
    Inventors: Takuya Takahashi, Kunihiro Fujita, Yusuke Mizutaki
  • Publication number: 20190276693
    Abstract: Provided is an ink-jet ink composition for a pressure-adhesion recording target medium. The ink-jet ink composition contains a pigment, a resin, an organic solvent, a surfactant, and water.
    Type: Application
    Filed: March 6, 2019
    Publication date: September 12, 2019
    Inventors: Kunihiro FUJITA, Takuya TAKAHASHI, Yusuke MIZUTAKI
  • Publication number: 20180298214
    Abstract: An aqueous ink jet ink composition contains a pigment, propylene glycol, and water, in which the aqueous ink jet ink composition has the viscosity of 3.0 mm2/s or more and 10.0 mm2/s or less at 20° C., the aqueous ink jet ink composition has the pH of 7 or more, the content of the pigment is 5.5% by mass or more and 9% by mass or less based on the total amount of the aqueous ink jet ink composition, and the content of the propylene glycol is 8 parts by mass or more and 100 parts by mass or less based on 100 parts by mass of the pigment.
    Type: Application
    Filed: April 11, 2018
    Publication date: October 18, 2018
    Inventors: Takuya TAKAHASHI, Kunihiro FUJITA, Yusuke MIZUTAKI
  • Publication number: 20180291554
    Abstract: The present invention provides a discharge printing agent containing thiourea dioxide, wherein the discharge printing agent further contains at least one of the following components (i) and (ii): (i) at least one salt selected from the group consisting of a salt of monocarboxylic acid, a salt of ascorbic acid, and a salt of metasilicic acid; and (ii) ?-diketone.
    Type: Application
    Filed: June 8, 2018
    Publication date: October 11, 2018
    Inventors: Goro OKADA, Kunihiro FUJITA
  • Patent number: 9598815
    Abstract: The present invention relates to a reducing agent containing thiourea dioxide. The reducing agent contains thiourea. The reducing agent contains carboxylate. The carboxylate includes at least one of aliphatic monocarboxylate, an aliphatic monocarboxylic acid derivative salt, and malonate. Therefore, the reducing agent exerts a good reducing ability and a good long-term stability effect.
    Type: Grant
    Filed: February 23, 2015
    Date of Patent: March 21, 2017
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventors: Goro Okada, Kunihiro Fujita
  • Publication number: 20150252520
    Abstract: The present invention relates to a reducing agent containing thiourea dioxide. The reducing agent contains thiourea. The reducing agent contains carboxylate. The carboxylate includes at least one of aliphatic monocarboxylate, an aliphatic monocarboxylic acid derivative salt, and malonate. Therefore, the reducing agent exerts a good reducing ability and a good long-term stability effect.
    Type: Application
    Filed: February 23, 2015
    Publication date: September 10, 2015
    Inventors: Goro Okada, Kunihiro Fujita
  • Publication number: 20140289974
    Abstract: The present invention provides a discharge printing agent containing thiourea dioxide, wherein the discharge printing agent further contains at least one of the following components (i) and (ii): (i) at least one salt selected from the group consisting of a salt of monocarboxylic acid, a salt of ascorbic acid, and a salt of metasilicic acid; and (ii) ?-diketone.
    Type: Application
    Filed: February 28, 2014
    Publication date: October 2, 2014
    Applicant: BROTHER KOGYO KABUSHIKI KAISHA
    Inventors: Goro Okada, Kunihiro Fujita
  • Patent number: 4715176
    Abstract: A manufacture of an impact-resistant power transmission belt tensile cord and belt using the same. The tensile cords of the invention are caused to have coordinated characteristics of toughness, elongation under load, shrinkage, and shrinkage stress so as to provide absorption of longitudinal and transverse impact shock forces to the belt during high power transmission therethrough, with minimized dimensional changes of the belt over the useful life thereof, permitting the belt to be utilized in multiple parallel drive applications in extremely rigorous environments with minimized maintenance. The tensile cords are adhesively coated, thermally drawn and set multifilament polyester cords.
    Type: Grant
    Filed: June 2, 1986
    Date of Patent: December 29, 1987
    Assignee: Mitsuboshi Belting Ltd.
    Inventors: Satoshi Mashimo, Kunihiro Fujita, Masayuki Tanaka, Yoshio Yamaguchi, Kazuhiro Takeda
  • Patent number: 4682973
    Abstract: A power transmission V-belt for transmitting high loads with extended useful life. The portion of the V-belt in which the tensile elements thereof are embedded is formed of a rubber having short reinforcing fibers distributed therein and oriented longitudinally of the belt. Different embodiments of both wrapped and raw edge belts embodying the invention are disclosed. Embodiments in which the outermost portion of the tension section and the innermost portion of the compression section are free of the longitudinally extending short fibers are also disclosed. Preferred amounts of the short fiber material and the hardness of the rubber are disclosed.
    Type: Grant
    Filed: March 21, 1986
    Date of Patent: July 28, 1987
    Assignee: Mitsuboshi Belting Ltd.
    Inventors: Kunihiro Fujita, Hideaki Tanaka
  • Patent number: 4575445
    Abstract: A method of forming a long cogged power transmission belt including extending a continuous looped vulcanizable belt preform element about a pair of axially parallel spaced support members, press-forming a first preselected length portion of the element disposed between the support members to form a first longitudinally extending series of cogs therein, vulcanizing the press-formed portion, press-forming a second, similar length portion of the element extending from the first portion and disposed between the support members to form a second longitudinally extending series of cogs therein continuing from the first series, vulcanizing the second press-formed portion, repeating the press-forming and vulcanizing operations if necessary until a final unformed portion of the belt extending from the last formed series of cogs and disposed between the support members has a length less than the preselected length, longitudinally stretching the final unformed portion to cause it to have a length approximately equal to t
    Type: Grant
    Filed: December 17, 1984
    Date of Patent: March 11, 1986
    Assignee: Mitsubishi Belting Ltd.
    Inventors: Kunihiro Fujita, Hideaki Tanaka, Toshiaki Maebara
  • Patent number: 4504258
    Abstract: A V-belt construction wherein a belt body defining an inner compression rubber portion and an outer compression rubber portion with tensile cords extending longitudinally therethrough is provided with a plurality of transversely extending reinforcing staple fibers distributed in the outer compression rubber portion such that the tensile cords are embedded within the distribution of the staple fibers. V-belts of the invention are provided both in raw edge and fabric-covered form. The rubber in which the tensile cords are embedded preferably has a hardness in the range of approximately 70.degree. to 90.degree.. Different distributions of the transverse staple fibers are disclosed.
    Type: Grant
    Filed: March 15, 1983
    Date of Patent: March 12, 1985
    Assignee: Mitsuboshi Belting Ltd.
    Inventors: Hideaki Tanaka, Kunihiro Fujita, Mitsuhiro Ushiroda