Patents by Inventor Koromo Shirota

Koromo Shirota 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: 5698478
    Abstract: Disclosed herein is an ink-jet printing cloth which can be dyed with inks containing a reactive dye and is composed mainly of cellulose fiber, wherein the cloth contains 0.1 to 50% by weight of a cationic substance, 0.01 to 5% by weight of an alkaline substance and 0.01 to 20% by weight of the ammonium salt of a polyvalent acid, the proportions of said cationic and alkaline substances and said ammonium salt being based on the dry weight of the cloth.
    Type: Grant
    Filed: October 24, 1995
    Date of Patent: December 16, 1997
    Assignee: Canon Kabushiki Kaisha
    Inventors: Tomoya Yamamoto, Masahiro Haruta, Shoji Koike, Koromo Shirota, Aya Yoshihira, Mariko Suzuki
  • Patent number: 5658376
    Abstract: The invention provides a water-based dispersion ink for bubble jet system which contains at least water, a water-soluble organic solvent, a disperse dye or pigment, a surfactant, and/or an alkali-soluble, water-soluble polymer having a carboxylic acid value, wherein the surfactant is a polyoxyethylene alkyl ether or a polyoxyethylene alkylphenyl ether having an anionic group, selected from phosphoric acid and carboxylic acid, at the ethylene oxide terminal and also having HLB equal to or more than 10.
    Type: Grant
    Filed: November 16, 1995
    Date of Patent: August 19, 1997
    Assignee: Canon Kabushiki Kaisha
    Inventors: Hiromichi Noguchi, Masahiro Haruta, Shoji Koike, Koromo Shirota, Aya Yoshihira, Tomoya Yamamoto, Mariko Suzuki
  • Patent number: 5635970
    Abstract: Disclosed herein is a printing process in which at least three inks are applied to a cloth according to an ink-jet system to conduct printing, which comprises at least three steps of:(a) applying at least two of the inks to the cloth in such a manner that at least parts of the two inks overlap each other;(b) subjecting the cloth, to which the inks have been applied, to a heat treatment; and(c) washing the heat-treated cloth,wherein the cloth is a cloth comprising fibers dyeable with disperse dyes, each and of the inks comprises a specified coloring matter, a compound for dispersing the coloring matter and an aqueous liquid medium.
    Type: Grant
    Filed: July 6, 1994
    Date of Patent: June 3, 1997
    Assignee: Canon Kabushiki Kaisha
    Inventors: Koromo Shirota, Masahiro Haruta, Shoji Koike, Aya Takaide, Tomoya Yamamoto, Mariko Suzuki
  • Patent number: 5631684
    Abstract: An ink jet printing method includes supplying at least two types of inks on a cloth such that the two types of inks overlap, wherein the cloth contains fibers which can be dyed with disperse dye, the two types of inks at least contain pigments, a compound for dispersing the pigments and an aqueous liquid medium, and the pigments are selected from a specific group of pigments.
    Type: Grant
    Filed: July 1, 1994
    Date of Patent: May 20, 1997
    Assignee: Canon Kabushiki Kaisha
    Inventors: Aya Takaide, Masahiro Haruta, Shoji Koike, Koromo Shirota, Tomoya Yamamoto, Mariko Suzuki
  • Patent number: 5603756
    Abstract: Disclosed herein is an ink-jet textile printing ink comprising at least a reactive dye and water, wherein the ink contains a hydrolyzate of the reactive dye in an amount of 1% to 50% by weight based on the weight of the reactive dye.
    Type: Grant
    Filed: May 23, 1995
    Date of Patent: February 18, 1997
    Assignee: Canon Kabushiki Kaisha
    Inventors: Mariko Suzuki, Masahiro Haruta, Shoji Koike, Koromo Shirota, Tomoya Yamamoto
  • Patent number: 5584918
    Abstract: An ink-jet textile printing ink comprises 5 to 30% by weight of a reactive dye having a vinylsulfone group and/or a monochlorotriazine group and an aqueous liquid medium, wherein the liquid medium contains at least 10 to 2000 ppm of phosphate ion (PO.sub.4.sup.3-).
    Type: Grant
    Filed: January 22, 1996
    Date of Patent: December 17, 1996
    Assignee: Canon Kabushiki Kaisha
    Inventors: Mariko Suzuki, Masahiro Haruta, Shoji Koike, Koromo Shirota, Tomoya Yamamoto
  • Patent number: 5583553
    Abstract: Disclosed herein is a method of forming color images with color inks including a cyan ink on a recording material provided with an ink-receiving layer, which contains basic magnesium carbonate and has a dry coat weight of from 1 to 15 g/m.sup.2, wherein at least one of the cyan ink and one or more another inks to form mixed-color areas with the cyan ink contains a surface active agent, wherein a cyan dye contained in the cyan ink is represented by the general formula ##STR1## wherein M means an alkali metal atom, an ammonium ion or an organic amine residue, m stands for a number of from 1 to 4, and is a number of from 0 to 3.
    Type: Grant
    Filed: February 23, 1995
    Date of Patent: December 10, 1996
    Assignee: Canon Kabushiki Kaisha
    Inventors: Koromo Shirota, Shoji Koike, Kyoko Fukushima
  • Patent number: 5540764
    Abstract: Disclosed herein is an ink comprising a coloring material and a liquid medium dissolving or dispersing the coloring material therein, wherein the ink comprises a compound represented by the general formula ##STR1## wherein R denotes H or CH.sub.3, n is an integer of 1 to 3, m is an integer of 1 to 3, and n+m is within a range of from 1 to 4, or bis(2-hydroxyethyl)sulfone.
    Type: Grant
    Filed: January 30, 1995
    Date of Patent: July 30, 1996
    Assignee: Canon Kabushiki Kaisha
    Inventors: Masahiro Haruta, Shoji Koike, Koromo Shirota, Tomoya Yamamoto, Mariko Suzuki
  • Patent number: 5515093
    Abstract: An ink jet printing method for effecting printing on a print medium such as a sheet of cloth by applying a jet of an ink to the print medium. The print medium is formed by preparing a sheet of cloth containing a cationic substance, preparing a backing sheet having a layer of an adhesive agent, and bonding the sheet of cloth to the adhesive surface of the backing sheet. After the jet of ink is applied to the print medium, the sheet of cloth is peeled off from the backing sheet and the freed sheet of cloth is rinsed with rinsing water containing a cation blocking agent, followed by drying.
    Type: Grant
    Filed: June 22, 1994
    Date of Patent: May 7, 1996
    Assignee: Canon Kabushiki Kaisha
    Inventors: Masahiro Haruta, Shoji Koike, Koromo Shirota, Aya Takaide, Tomoya Yamamoto, Mariko Suzuki
  • Patent number: 5500023
    Abstract: Disclosed herein is an ink-jet printing process comprising at least the steps of:(a) successively applying, as ink droplets, at least two inks of different colors to a cloth to form a color-mixed portion;(b) subjecting the cloth to a heat treatment to fix dyes contained in the inks to the cloth; and(c) washing the cloth to remove unfixed dyes from the cloth,wherein the inks comprise water, an organic solvent and individual reactive dyes different from each other in reaction rate, and the volume of a droplet of the ink containing a slower-reacting dye is made smaller upon the application of the inks.
    Type: Grant
    Filed: April 18, 1994
    Date of Patent: March 19, 1996
    Assignee: Canon Kabushiki Kaisha
    Inventors: Shoji Koike, Masahiro Haruta, Koromo Shirota, Tomoya Yamamoto, Mariko Suzuki
  • Patent number: 5358558
    Abstract: An ink-jet textile printing ink, comprising from 5% to 30% by weight of a reactive dye having at least one of a monochlorotriazine group and a vinyl sulfone group, and a water-based liquid medium, wherein said liquid medium comprises from 1% to 50% by weight of thiodiglycol and from 2% to 45% by weight of at least one organic solvent selected from a di-, tri-, or tetramer of oxyethylene, a di-, tri-, or tetramer of oxypropylene, and a mono- or di-C.sub.1 -C.sub.4 -alkyl ether of any of these di-, tri- or tetramers.
    Type: Grant
    Filed: July 7, 1993
    Date of Patent: October 25, 1994
    Assignee: Canon Kabushiki Kaisha
    Inventors: Tomoya Yamamoto, Shoji Koike, Koromo Shirota, Shinichi Satoh
  • Patent number: 5329305
    Abstract: An apparatus employing an ink for ink jet recording that includes: a recording agent; a liquid carrier medium; and an alkylether of polyoxyethylene-polyoxypropylene random polymer having the following general formula [I]:R.sub.1 --(X)--O--R.sub.2 [I]wherein R.sub.1 and R.sub.2 each is a hydrogen atom or an alkyl group, with the proviso that they cannot both be a hydrogen atom, and X is a random polymer of ethylene oxide and polypropylene oxide.
    Type: Grant
    Filed: June 30, 1992
    Date of Patent: July 12, 1994
    Assignee: Canon Kabushiki Kaisha
    Inventors: Kyouko Fukushima, Koromo Shirota, Shouji Koike
  • Patent number: 5296022
    Abstract: An ink-jet method and apparatus employing an ink comprising a dye and a liquid medium for dissolving or dispersing a dye, wherein the liquid medium comprises an alkyl alcohol having 2 to 4 carbon atoms, in which at least one of the hydrogen atoms is substituted by a halogen atom.
    Type: Grant
    Filed: June 22, 1993
    Date of Patent: March 22, 1994
    Assignee: Canon Kabushiki Kaisha
    Inventors: Masatsune Kobayashi, Shoji Koike, Shinichi Tochihara, Kyoko Fukushima, Akira Nagashima, Koromo Shirota, Kumiko Mafune
  • Patent number: 5258066
    Abstract: An ink comprising a dye and a liquid medium for dissolving or dispersing a dye, wherein the liquid medium comprises an alkyl alcohol having 2 to 4 carbon atoms, in which at least one of the hydrogen atoms is substituted by a halogen atom.
    Type: Grant
    Filed: November 12, 1991
    Date of Patent: November 2, 1993
    Assignee: Canon Kabushiki Kaisha
    Inventors: Masatsune Kobayashi, Shohji Koike, Shinichi Tochihara, Kyoko Fukushima, Akira Nagashima, Koromo Shirota, Kumiko Mafune
  • Patent number: 5254157
    Abstract: A recording solution including a coloring matter and a liquid medium, wherein said recording solution contains a compound obtained by alkylation or acetylation of one or two hydroxyl group(s) of a triol having 4 or more carbon atoms.
    Type: Grant
    Filed: August 22, 1991
    Date of Patent: October 19, 1993
    Assignee: Canon Kabushiki Kaisha
    Inventors: Shoji Koike, Kyoko Fukushima, Koromo Shirota
  • Patent number: 5250121
    Abstract: An ink-jet textile printing ink, comprising from 5% to 30% by weight of a reactive dye having at least one of a monochlorotriazine group and a vinyl sulfone group, and a water-based liquid medium, wherein said liquid medium comprises from 1% to 50% by weight of thiodiglycol and from 2% to 45% by weight of at least one organic solvent selected from a di-, tri-, or tetramer of oxyethylene, a di-, tri-, or tetramer of oxypropylene, and a mono- or di-C.sub.1 -C.sub.4 -alkyl ether of any of these di-, tri- or tetramers.
    Type: Grant
    Filed: September 22, 1992
    Date of Patent: October 5, 1993
    Assignee: Canon Kabushiki Kaisha
    Inventors: Tomoya Yamamoto, Shoji Koike, Koromo Shirota, Shinichi Satoh
  • Patent number: 5248991
    Abstract: An ink-jet recording process, recording unit, ink cartridge, and ink-jet recording apparatus employing ink that comprises a triol consisting of carbon atoms, hydrogen atoms and hydroxyl groups, and wherein the triol is selected from the group consisting of the following (a) to (c):(a) a straight-chain triol having 5 carbon atoms;(b) a compound of the formula ##STR1## wherein any three of A.sub.1 to A.sub.5 each represent a hydroxyl group, and the remaining two each represent a hydrogen atom, or a branched triol having 6 carbon atoms; and(c) a triol having at least 7 carbon atoms.
    Type: Grant
    Filed: June 3, 1992
    Date of Patent: September 28, 1993
    Assignee: Canon Kabushiki Kaisha
    Inventors: Koromo Shirota, Kyoko Fukushima, Shoji Koike
  • Patent number: 5221333
    Abstract: Provided is an ink comprising a recording agent and a liquid medium capable of dissolving or dispersing the recording agent, wherein said ink comprises butanetriol or 2-methyl-1,2,3-propanetriol.
    Type: Grant
    Filed: March 1, 1991
    Date of Patent: June 22, 1993
    Assignee: Canon Kabushiki Kaisha
    Inventors: Koromo Shirota, Kyoko Fukushima, Shoji Koike
  • Patent number: 5220347
    Abstract: An ink-jet recording method and apparatus using an aqueous ink that comprises a recording agent and a liquid medium for dissolving or dispersing the recording agent, the ink comprising a compound represented by the general formula (I) or (II): ##STR1## wherein R.sub.1 and R.sub.2 are independently selected from the group consisting of radicals of hydrogen, alkyl or alkoxy having not more than 10 carbons, sulfonic acid or salts thereof, nitro, hydroxyl, carboxyl, and amino or derivatives thereof, and R.sub.1 and R.sub.2 are not simultaneously a hydrogen radical.
    Type: Grant
    Filed: February 19, 1992
    Date of Patent: June 15, 1993
    Assignee: Canon Kabushiki Kaisha
    Inventors: Kyoko Fukushima, Koromo Shirota, Shoji Koike
  • Patent number: 5190581
    Abstract: An ink comprises a recording agent and a liquid medium for dissolving or dispersing the recording agent, the ink comprising a compound represented by the general formula (I) or (II): ##STR1## where R.sub.1 and R.sub.2 are independently selected from the group consisting of radicals of hydrogen, alkyl or alkoxy having not more than 10 carbons, sulfonic acid or salts thereof, nitro, hydroxyl, carboxyl, and amino or derivatives thereof, and R.sub.1 and R.sub.2 are not simultaneously hydrogen radical. The ink is suitable used for ink-jet recording.
    Type: Grant
    Filed: June 10, 1992
    Date of Patent: March 2, 1993
    Assignee: Canon Kabushiki Kaisha
    Inventors: Kyoko Fukushima, Koromo Shirota, Shoji Koike