Patents by Inventor Takao Hiraoka

Takao Hiraoka 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: 11629262
    Abstract: In accordance with some embodiment of the present invention, a liquid composition set is provided. The liquid composition set includes a first liquid composition and a second liquid composition. The first liquid composition comprises: a compound represented by general formula (1): where X and Y each independently represent a functional group, and at least one of X and Y represents an electron-withdrawing functional group; and an acidic substance. The second liquid composition comprises a compound having vinyl group or acryloyl group.
    Type: Grant
    Filed: August 4, 2020
    Date of Patent: April 18, 2023
    Assignee: RICOH COMPANY, LTD.
    Inventor: Takao Hiraoka
  • Patent number: 11311423
    Abstract: Provided is a facial patch including a support, a pressure-sensitive adhesive layer, and a release layer in this order, in which (a) the pressure-sensitive adhesive layer satisfies the following conditions (a-1) to (a-3): (a-1) the pressure-sensitive adhesive layer contains a styrene-isoprene-styrene block copolymer, a tackifier resin, and a softening agent; (a-2) the ratio (mass ratio) of the styrene-isoprene-styrene block copolymer and the tackifier resin is 1:2 to 1:4; and (a-3) the content of the softening agent is 40% to 60% by mass; and (b) the support has elastic moduli with a Young's modulus of 0.01 GPa to 0.5 GPa, and also provided is a method for producing the facial patch, the method including a step of forming a pressure-sensitive adhesive layer on the upper surface of the release layer.
    Type: Grant
    Filed: December 19, 2012
    Date of Patent: April 26, 2022
    Assignee: NICHIBAN CO., LTD.
    Inventors: Koji Kawahara, Takao Hiraoka, Mariko Tanaka, Chihiro Kenmochi
  • Patent number: 11299641
    Abstract: A curable liquid composition includes a monomer having an SI value of less than 3.0 and a photopolymerization initiator having a weight average molecular weight of 500 or greater, wherein the curable liquid composition is negative in skin sensitization.
    Type: Grant
    Filed: December 20, 2018
    Date of Patent: April 12, 2022
    Assignee: RICOH COMPANY, LTD.
    Inventor: Takao Hiraoka
  • Patent number: 10995226
    Abstract: An active-energy-ray-curable composition including at least one monofunctional (meth)acrylate, at least one multifunctional (meth)acrylate, and at least one chlorinated-olefin-structure-containing polymer.
    Type: Grant
    Filed: June 16, 2016
    Date of Patent: May 4, 2021
    Assignee: Ricoh Company, Ltd.
    Inventors: Masato Iio, Takao Hiraoka
  • Publication number: 20210107714
    Abstract: A sterile packaging container that can smoothly and repeatedly accommodate housed medicine without increasing the risk of contamination includes a front side film, and a back side film. An opening is formed on one side, and two sides and a bottom are heat sealed. The front side film is a non-breathable film with a strip of breathable sterile paper interposed and extending in the width direction. The backside film is composed of a non-breathable film. In the front side film, the vertical edges of the non-breathable film and the vertical edges of the breathable sterile paper have a structure in which they are heat-sealed to each other. All contact parts of the non-breathable film and the breathable sterile paper are heat sealed.
    Type: Application
    Filed: March 7, 2018
    Publication date: April 15, 2021
    Applicant: NICHIBAN CO.,LTD.
    Inventors: Takao HIRAOKA, Kenichi NAKAO
  • Publication number: 20210102081
    Abstract: In accordance with some embodiment of the present invention, a liquid composition set is provided. The liquid composition set includes a first liquid composition and a second liquid composition. The first liquid composition comprises: a compound represented by general formula (1): where X and Y each independently represent a functional group, and at least one of X and Y represents an electron-withdrawing functional group; and an acidic substance. The second liquid composition comprises a compound having vinyl group or acryloyl group.
    Type: Application
    Filed: August 4, 2020
    Publication date: April 8, 2021
    Inventor: Takao HIRAOKA
  • Publication number: 20200354593
    Abstract: A curable liquid composition includes a monomer having an SI value of less than 3.0 and a photopolymerization initiator having a weight average molecular weight of 500 or greater, wherein the curable liquid composition is negative in skin sensitization.
    Type: Application
    Filed: December 20, 2018
    Publication date: November 12, 2020
    Inventor: Takao HIRAOKA
  • Patent number: 10829575
    Abstract: A photopolymerizable composition, which contains: a monofunctional monomer having a viscosity of 5 mPa·s or less at 25° C.; one or more polyfunctional monomers including glycerol dimethacrylate; and a polymer free from a hydrophilic functional group, wherein a mass ratio (A/B) of an amount (A) of the polymer free from a hydrophilic functional group to an amount (B) of the polyfunctional monomer is greater than 0.80 but 3 or less.
    Type: Grant
    Filed: June 1, 2015
    Date of Patent: November 10, 2020
    Assignee: Ricoh Company, Ltd.
    Inventor: Takao Hiraoka
  • Patent number: 10829631
    Abstract: A composition contains an acrylamide compound A1 having an ester structure and a polymerization initiator B1 having a molecular weight of 800 or more.
    Type: Grant
    Filed: July 1, 2019
    Date of Patent: November 10, 2020
    Assignee: Ricoh Company, Ltd.
    Inventors: Takao Hiraoka, Mitsunobu Morita, Takashi Okada, Soh Noguchi, Tatsuki Yamaguchi, Masahide Kobayashi, Takenori Suenaga
  • Patent number: 10793735
    Abstract: A curable composition is provided comprising at least one monomer comprising a multifunctional monomer. Each monomer has a solubility parameter (SP) of from 7 to 11 (cal/cm3)0.5, and a cured film produced by curing the curable composition has a glass transition temperature of from 0° C. to 30° C.
    Type: Grant
    Filed: March 6, 2019
    Date of Patent: October 6, 2020
    Assignee: Ricoh Company, Ltd.
    Inventors: Tsuyoshi Asami, Takao Hiraoka, Daisuke Nose
  • Publication number: 20200138732
    Abstract: An adhesive skin patch with a support liner comprises at least a strip drug product and a release liner longer than the drug product. The support liner includes a backing film and an adhesive layer; the drug product is quadrilateral with two long sides being straight in parallel and two short sides each elliptical arcs convex outward; a longest interval between the two short sides is 20.0 mm or more and 50.0 mm or less, and an interval between the two long sides is 5.0 mm or more and 37.5 mm or less; and the elliptical arc has: an ellipse major axis of 20.0 mm or more and 50.0 mm or less, an ellipse minor axis of 14.8 mm or more and less than 50.0 mm, and the minor axis of at least 2.0 mm wider than the interval of the two long sides.
    Type: Application
    Filed: June 22, 2018
    Publication date: May 7, 2020
    Inventors: Takao HIRAOKA, Atsushi MURATA, Koji KAWAHARA, Takahiro OGAWA, Akiharu ISOWAKI
  • Patent number: 10562311
    Abstract: A polymerizable inkjet ink, containing: photopolymerizable monomers containing a compound (A) that is negative for skin sensitization, a compound (B) that is negative for skin sensitization, and a photoradical polymerization initiator where the compound (A) is a (meth)acrylate compound, the photoradical polymerization initiator is 2,4-diethyl thioxanthone, and the ink has a viscosity of 2 to 150 mPa·s at a temperature of 25° C. and a viscosity of 2 to 20 mPa·s at 60° C.
    Type: Grant
    Filed: March 5, 2019
    Date of Patent: February 18, 2020
    Assignee: Ricoh Company, Ltd.
    Inventor: Takao Hiraoka
  • Publication number: 20200010662
    Abstract: A composition contains an acrylamide compound A1 having an ester structure and a polymerization initiator B1 having a molecular weight of 800 or more.
    Type: Application
    Filed: July 1, 2019
    Publication date: January 9, 2020
    Inventors: Takao HIRAOKA, Mitsunobu MORITA, Takashi OKADA, Soh NOGUCHI, Tatsuki YAMAGUCHI, Masahide KOBAYASHI, Takenori SUENAGA
  • Publication number: 20190284416
    Abstract: A curable composition is provided comprising at least one monomer comprising a multifunctional monomer. Each monomer has a solubility parameter (SP) of from 7 to 11 (cal/cm3)0.5, and a cured film produced by curing the curable composition has a glass transition temperature of from 0° C. to 30° C.
    Type: Application
    Filed: March 6, 2019
    Publication date: September 19, 2019
    Inventors: Tsuyoshi ASAMI, Takao HIRAOKA, Daisuke NOSE
  • Patent number: 10414150
    Abstract: An active-energy-ray-curable composition including at least one monofunctional (meth)acrylate, at least one multifunctional (meth)acrylate, and at least one polyester-structure-containing polymer. Preferable is an aspect where the active-energy-ray-curable composition further includes a polymer obtained through polymerization of at least one selected from the group consisting of styrene, styrene derivatives, acrylic acid esters, and acrylic acid.
    Type: Grant
    Filed: June 29, 2016
    Date of Patent: September 17, 2019
    Assignee: Ricoh Company, Ltd.
    Inventors: Takao Hiraoka, Masato Iio, Daisuke Miki
  • Publication number: 20190217622
    Abstract: A polymerizable inkjet ink, containing: photopolymerizable monomers containing a compound (A) that is negative for skin sensitization, a compound (B) that is negative for skin sensitization, and a photoradical polymerization initiator where the compound (A) is a (meth)acrylate compound, the photoradical polymerization initiator is 2,4-diethyl thioxanthone, and the ink has a viscosity of 2 to 150 mPa·s at a temperature of 25° C. and a viscosity of 2 to 20 mPa·s at 60° C.
    Type: Application
    Filed: March 5, 2019
    Publication date: July 18, 2019
    Inventor: Takao HIRAOKA
  • Patent number: 10259226
    Abstract: A polymerizable inkjet ink, containing: photopolymerizable monomers containing a compound (A) that is negative for skin sensitization, a compound (B) that is negative for skin sensitization, and a photoradical polymerization initiator where the compound (A) is a (meth)acrylate compound, the photoradical polymerization initiator is 2,4-diethyl thioxanthone, and the ink has a viscosity of 2 to 150 mPa·s at a temperature of 25° C. and a viscosity of 2 to 20 mPa·s at 60° C.
    Type: Grant
    Filed: September 5, 2017
    Date of Patent: April 16, 2019
    Assignee: Ricoh Company, Ltd.
    Inventor: Takao Hiraoka
  • Publication number: 20190099300
    Abstract: To provide an adhesive skin patch being allowed that a carrier layer being in close contact with a backing film layer is easily released after applying to an application site, so as to improve a handleability of the adhesive skin patch.
    Type: Application
    Filed: March 30, 2017
    Publication date: April 4, 2019
    Inventors: Takahiro OGAWA, Akiharu ISOWAKI, Mariko OHTSU, Takao HIRAOKA, Chihiro KENMOCHI, Atsushi MURATA, Koji KAWAHARA
  • Patent number: 10227497
    Abstract: An active energy ray curable composition is provided. The active energy ray curable composition includes a polymerizable monomer, a polymer component, a polymeric dispersant, and a pigment. The active energy ray curable composition is non-aqueous. The active energy ray curable composition has a yield value of 0.1 Pa or less either when having an initial weight or when being dried to have a weight 70% by mass of the initial weight.
    Type: Grant
    Filed: July 8, 2016
    Date of Patent: March 12, 2019
    Assignee: Ricoh Company, Ltd.
    Inventors: Masato Iio, Takao Hiraoka
  • Patent number: 9988478
    Abstract: A cured composition prepared from a photopolymerizable composition that includes diethyleneglycoldimethacrylate and alkoxy-modified (meth)acrylic acid ester having an n not less than 9. The n is an average polymerization degree of an alkoxy part of the (meth)acrylic acid ester.
    Type: Grant
    Filed: August 8, 2016
    Date of Patent: June 5, 2018
    Assignee: Ricoh Company, Ltd.
    Inventor: Takao Hiraoka