Patents by Inventor Akiko Hayashi

Akiko Hayashi 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: 20190352528
    Abstract: An aqueous pigment ink for textile inkjet printing is disclosed that contains a pigment, a first water-dispersible resin, a second water-dispersible resin and water, wherein the first water-dispersible resin is at least one resin selected from the group consisting of a water-dispersible urethane resin, a water-dispersible (meth)acrylic resin and a water-dispersible styrene/(meth)acrylic resin, the second water-dispersible resin is a water-dispersible polyester resin, the total amount of the first water-dispersible resin and the second water-dispersible resin is from 2 to 18% by mass relative to the total mass of the ink, and the mass ratio of the second water-dispersible resin relative to the first water-dispersible resin (second water-dispersible resin/first water-dispersible resin) is from 0.1 to 5.0. A method for producing a printed textile item and an ink set are also disclosed.
    Type: Application
    Filed: August 20, 2018
    Publication date: November 21, 2019
    Inventors: Takahisa Yamazaki, Akiko Hayashi, Shunsuke Uozumi, Kokoro Kinoe
  • Publication number: 20190352846
    Abstract: A pretreatment liquid for inkjet textile printing is disclosed that includes water and a cellulose-based polymer having a weight average molecular weight of at least 50,000. A method for producing a printed textile item and an ink set for inkjet textile printing are also disclosed.
    Type: Application
    Filed: March 11, 2019
    Publication date: November 21, 2019
    Inventors: Kokoro KINOE, Akiko HAYASHI, Takahisa YAMAZAKI, Shunsuke UOZUMI
  • Publication number: 20190352522
    Abstract: An aqueous inkjet ink is disclosed which contains a colorant, a polyoxyethylene monoallyl ether, and water.
    Type: Application
    Filed: June 22, 2018
    Publication date: November 21, 2019
    Inventor: Akiko HAYASHI
  • Patent number: 10351721
    Abstract: An aqueous inkjet ink is disclosed which contains water, a polyoxyethylene polyglyceryl ether and a colorant, wherein a ratio (B/A) of the total number (B) of hydroxyl groups within a molecule of the polyoxyethylene polyglyceryl ether relative to the weight average molecular weight (A) of the polyoxyethylene polyglyceryl ether is within a range from 0.002 to 0.012.
    Type: Grant
    Filed: November 28, 2017
    Date of Patent: July 16, 2019
    Assignee: RISO KAGAKU CORPORATION
    Inventor: Akiko Hayashi
  • Patent number: 10293599
    Abstract: The present invention discloses a method for producing a decorative article which includes a step of performing inkjet printing onto the surface of a humidity-conditioning base material using an aqueous inkjet ink containing at least water, a water-dispersible resin and a colorant, and also discloses a device for producing the decorative article.
    Type: Grant
    Filed: November 28, 2014
    Date of Patent: May 21, 2019
    Assignee: RISO KAGAKU CORPORATION
    Inventors: Hirotaka Yamamoto, Sayako Arai, Mamoru Saito, Ami Terakado, Akiko Hayashi
  • Publication number: 20180148589
    Abstract: An aqueous inkjet ink is disclosed which contains water, a polyoxyethylene polyglyceryl ether and a colorant, wherein a ratio (B/A) of the total number (B) of hydroxyl groups within a molecule of the polyoxyethylene polyglyceryl ether relative to the weight average molecular weight (A) of the polyoxyethylene polyglyceryl ether is within a range from 0.002 to 0.012.
    Type: Application
    Filed: November 28, 2017
    Publication date: May 31, 2018
    Inventor: Akiko HAYASHI
  • Publication number: 20160229177
    Abstract: The present invention discloses a method for producing a decorative article which includes a step of performing inkjet printing onto the surface of a humidity-conditioning base material using an aqueous inkjet ink containing at least water, a water-dispersible resin and a colorant, and also discloses a device for producing the decorative article.
    Type: Application
    Filed: November 28, 2014
    Publication date: August 11, 2016
    Inventors: Hirotaka YAMAMOTO, Sayako ARAI, Mamoru SAITO, Ami TERAKADO, Akiko HAYASHI
  • Publication number: 20140360405
    Abstract: Provided is a water-in-oil type emulsion adhesive, which is excellent in open shelf stability and thus a coating is difficult to be formed inside of a machine, which is excellent in storage stability, and which can be rapidly attached with low energy. The water-in-oil type emulsion adhesive includes an oil phase and an aqueous phase, wherein the oil phase contains at least an organic solvent and an emulsifier, the aqueous phase contains at least water and a polymer compound, and the aqueous phase has a particle diameter of from 1 to 100 ?m by a volume-based average diameter.
    Type: Application
    Filed: June 10, 2014
    Publication date: December 11, 2014
    Inventors: Akiko HAYASHI, Yuki URANO, Kokoro KINOE, Hiroyuki OGAWA
  • Patent number: 8540356
    Abstract: A duplex printing machine 1 includes an inkjet head 27 with a piezoelectric element set for vibrations to propel out droplets of aqueous ink 50, an inkbottle 21 for supplying aqueous ink 50 to the inkjet head 27, a system of ink lines 28 having a lower tank 22, a circulation pump 23, a filter 25, and an upper tank 26, a degasser 24 having a degassing pump 24a for degassing flux of aqueous ink 50 being to be supplied to the inkjet head 27, and a controller 7 operable to control the degassing pump 24a, the controller 7 being adapted to operate, as a print time calculated from an image data set of a print job is equal to or greater than a prescribed value, for driving the degassing pump 24a to degas flux of aqueous ink 50.
    Type: Grant
    Filed: September 27, 2010
    Date of Patent: September 24, 2013
    Assignee: Riso Kagaku Corporation
    Inventors: Asayo Nishimura, Hiroshi Sugitani, Akiko Hayashi
  • Publication number: 20130238615
    Abstract: An information management apparatus, including an obtainment unit to obtain identification information for identifying first viewed information when a viewing unit has displayed the first viewed information, an extraction unit to extract a frequently appearing character string included in the first viewed information, a registration unit to add route information to identification information for identifying second viewed information in an associated manner, a first output unit to output to the display unit first display information for displaying a first selection unit that lists favorites information including route information including a frequently appearing character string for each frequently appearing character string; and, a second output unit to output to the display unit second display information for displaying favorites information including route information including a frequently appearing character string that corresponds to a selected first selection unit.
    Type: Application
    Filed: January 16, 2013
    Publication date: September 12, 2013
    Inventor: Akiko HAYASHI
  • Publication number: 20110192318
    Abstract: A water-based inkjet ink containing at least water, a low polarity water-soluble organic solvent, a pigment and optionally a basic substance, wherein the water constitutes 60 percent by mass or less of the total quantity of the ink while the water-soluble organic solvent constitutes 15 percent by mass or more of the total quantity of the ink, the pigment includes a self-dispersible pigment that has anionic functional groups on its surface and contains, as counter ions, quaternary ammonium ions represented by the formula (1) wherein R1, R2, R3 and R4 independently represent a substituted or unsubstituted alkyl group.
    Type: Application
    Filed: October 8, 2009
    Publication date: August 11, 2011
    Inventors: Akiko Hayashi, Kohji Nomura, Sayako Arai, Yoshiaki Ishimaru, Ayako Mochizuki, Shunsuke Uozumi
  • Patent number: 7955427
    Abstract: An inkjet aqueous ink that prevents paper deformation and exhibits superior print quality and latency. The inkjet aqueous ink contains not less than 15% by mass and not more than 40% by mass of a polyglycerol having an average polymerization degree of 4 or greater, not less than 5% by mass and not more than 20% by mass of at least one of 1,3-propanediol and diethylene glycol monoethyl ether, and not less than 40% by mass and not more than 60% by mass of water.
    Type: Grant
    Filed: May 26, 2009
    Date of Patent: June 7, 2011
    Assignee: Riso Kagaku Corporation
    Inventors: Akiko Hayashi, Yoshiaki Ishimaru
  • Publication number: 20110074840
    Abstract: A duplex printing machine 1 includes an inkjet head 27 with a piezoelectric element set for vibrations to propel out droplets of aqueous ink 50, an inkbottle 21 for supplying aqueous ink 50 to the inkjet head 27, a system of ink lines 28 having a lower tank 22, a circulation pump 23, a filter 25, and an upper tank 26, a degasser 24 having a degassing pump 24a for degassing flux of aqueous ink 50 being to be supplied to the inkjet head 27, and a controller 7 operable to control the degassing pump 24a, the controller 7 being adapted to operate, as a print time calculated from an image data set of a print job is equal to or greater than a prescribed value, for driving the degassing pump 24a to degas flux of aqueous ink 50.
    Type: Application
    Filed: September 27, 2010
    Publication date: March 31, 2011
    Applicant: RISO KAGAKU CORPORATION
    Inventors: Asayo NISHIMURA, Hiroshi SUGITANI, Akiko HAYASHI
  • Publication number: 20100015413
    Abstract: An inkjet aqueous ink that prevents paper deformation and exhibits superior print quality and latency. The inkjet aqueous ink contains not less than 15% by mass and not more than 40% by mass of a polyglycerol having an average polymerization degree of 4 or greater, not less than 5% by mass and not more than 20% by mass of at least one of 1,3-propanediol and diethylene glycol monoethyl ether, and not less than 40% by mass and not more than 60% by mass of water.
    Type: Application
    Filed: May 26, 2009
    Publication date: January 21, 2010
    Applicant: RISO KAGAKU CORPORATION
    Inventors: Akiko Hayashi, Yoshiaki Ishimaru
  • Publication number: 20090222761
    Abstract: A display screen setting program allows the computer to execute the functions of acquiring the use conditions of the computer; determining set content associated with set conditions corresponding to the use conditions, on the basis of set information that is stored in a set information storage and associates the set content of the display screen with the set conditions for determining the correspondence between the set contents and the use conditions acquired by the use condition acquirer; and outputting display information for displaying the display screen on the basis of the set content.
    Type: Application
    Filed: January 30, 2009
    Publication date: September 3, 2009
    Applicant: FUJITSU LIMITED
    Inventor: Akiko HAYASHI
  • Patent number: 7582153
    Abstract: An aqueous ink for an inkjet is provided, including: a pigment; a water-soluble organic solvent A including at least one of a diglycerol and a polyglycerol; a water-soluble organic solvent B including a polyethylene glycol monoalkyl ether represented by formula (1): RO—(CH2CH2O)n—H where R represents an alkyl group having from 4 to 6 carbon atoms, and n represents an integer from 4 to 6; and water
    Type: Grant
    Filed: July 25, 2008
    Date of Patent: September 1, 2009
    Assignee: Riso Kagaku Corporation
    Inventors: Yoshiaki Ishimaru, Takashi Saito, Akiko Hayashi, Sayako Nakao, Yoshifumi Watanabe
  • Publication number: 20090025605
    Abstract: An aqueous ink for an inkjet, comprising a pigment, a water-soluble organic solvent A, a water-soluble organic solvent B, and water, wherein the water-soluble organic solvent A comprises at least one of diglycerol and polyglycerol, and the water-soluble organic solvent B comprises a polyethylene glycol monoalkyl ether represented by a general formula (1): RO—(CH2CH2O)n—H (wherein, R represents an alkyl group of 4 to 6 carbon atoms, and n represents an integer from 4 to 6).
    Type: Application
    Filed: July 25, 2008
    Publication date: January 29, 2009
    Applicant: RISO KAGAKU CORPORATION
    Inventors: Yoshiaki Ishimaru, Takashi Saito, Akiko Hayashi, Sayako Nakao, Yoshifumi Watanabe
  • Patent number: 7015257
    Abstract: A photo-polymerizable ink-jet ink composition comprises a photo-polymerizable resin consisting of photo-polymerizable monomers, a photo-polymerization initiator, and a coloring material and is substantially free from a solvent. The photo-polymerizable monomers contain a hexa-functional monomer in a proportion falling within the range of 10% by weight to 30% by weight with respect to a total amount of the ink composition. The photo-polymerizable monomer other than the hexa-functional monomer is selected from the group consisting of a bi-functional monomer, a combination of a bi-functional monomer and a mono-functional monomer, a combination of a bi-functional monomer and a tri-functional monomer, and a combination of a bi-functional monomer, a mono-functional monomer, and a tri-functional monomer.
    Type: Grant
    Filed: December 2, 2003
    Date of Patent: March 21, 2006
    Assignee: Riso Kagaku Corporation
    Inventor: Akiko Hayashi
  • Patent number: 6903172
    Abstract: A cationically polymerizable composition is provided, which comprises a cationically polymerizable compound, a cationic polymerization initiator, and a specific tertiary alkanolamine or tertiary alkylamine. The cationically polymerizable compound is preferably an alicyclic epoxy compound and an oxetane compound. The above amine accounts for 0.01 to 1.0% by weight, preferably 0.05 to 0.5% by weight of the total of the cationically polymerizable composition and the cationic polymerization initiator accounts for 0.1 to 20 parts by weight based on 100 parts by weight of the cationically polymerizable compound. The composition is excellent in storage stability and dispersion stability of colorants contained therein.
    Type: Grant
    Filed: April 3, 2003
    Date of Patent: June 7, 2005
    Assignee: Riso Kagaku Corporation
    Inventor: Akiko Hayashi
  • Patent number: 6846073
    Abstract: An inkjet printer performing printing a print paper (3) by ejecting an UV-curing type ink to the print paper (3) through an inkjet print head (5) includes an ultraviolet irradiation device (A) having an ultraviolet light generation section (10) for generating ultraviolet light and optical fibers (11a, 11b) through which the ultraviolet light generated by the section (10) is guided to a position close to the inkjet print head (5). In the inkjet printer, ink ejection and ink curing are repeated in order to form a thick film, where the inkjet print head (5) performs the ink ejection for ejecting the UV-curing type ink to the print paper (3), and the ultraviolet irradiation device (A) performs the ink curing for curing the ink printed on the print paper (3) immediately following the ink ejection.
    Type: Grant
    Filed: August 31, 2001
    Date of Patent: January 25, 2005
    Assignee: Riso Kagaku Corporation
    Inventors: Yasuo Yamamoto, Akiko Hayashi