Patents by Inventor Hiroshi Kakihira
Hiroshi Kakihira 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).
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Publication number: 20210405603Abstract: Provided is an apparatus for generating a operation plan of a hydrogen production system comprising a hydrogen production apparatus, comprising: a demand predicting unit for generating a predicted demand amount for each of a plurality of types of hydrogen with a different environmental load of production over a target period of the operation plan; and an operation planning unit for generating the operation plan, which is for generating a plurality of types of hydrogen with a different environmental load of production by the hydrogen production apparatus, based on a predicted hydrogen demand amount of each of the plurality of types of hydrogen.Type: ApplicationFiled: September 8, 2021Publication date: December 30, 2021Inventors: Goshu NAGINO, Hiroshi KAKIHIRA, Yohei ITOI
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Patent number: 8158223Abstract: The invention relates to an ink jet recording medium, in which at least one of a substrate and an ink receiving layer contains a compound of the general formula (1): wherein R1 and R2 are individually a hydrogen atom, a hydroxyl group, a linear or branched alkyl group or a substituted or unsubstituted aryl group, with the proviso that R1 and R2 may be the same or different from each other, R3 is a linear or branched alkylene group or arylene group, and X is an acidic solubilizing group.Type: GrantFiled: March 10, 2009Date of Patent: April 17, 2012Assignee: Canon Kabushiki KaishaInventors: Hirokazu Hyakuda, Hiroshi Kakihira, Hisao Kamo
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Patent number: 8153212Abstract: The invention provides an ink jet recording medium excellent in light fastness, gas fastness and uniform ink absorption. The ink jet recording medium has a substrate and an ink receiving layer provided on at least one surface of the substrate. The ink receiving layer contains a compound represented by the general formula (1): wherein R1, R2 and R3 are individually a linear or branched alkyl group having 1 to 20 carbon atoms, with the proviso that at least one of R1, R2 and R3 has a hydroxyl group.Type: GrantFiled: May 29, 2009Date of Patent: April 10, 2012Assignee: Canon Kabushiki KaishaInventors: Hirokazu Hyakuda, Hiroshi Kakihira, Hisao Kamo
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Publication number: 20110076427Abstract: The invention provides an ink jet recording medium excellent in light fastness, gas fastness and uniform ink absorption. The ink jet recording medium has a substrate and an ink receiving layer provided on at least one surface of the substrate. The ink receiving layer contains a compound represented by the general formula (1): wherein R1, R2 and R3 are individually a linear or branched alkyl group having 1 to 20 carbon atoms, with the proviso that at least one of R1, R2 and R3 has a hydroxyl group.Type: ApplicationFiled: May 29, 2009Publication date: March 31, 2011Applicant: CANON KABUSHIKI KAISHAInventors: Hirokazu Hyakuda, Hiroshi Kakihira, Hisao Kamo
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Publication number: 20110008553Abstract: The invention relates to an ink jet recording medium, in which at least one of a substrate and an ink receiving layer contains a compound of the general formula (1): wherein R1 and R2 are individually a hydrogen atom, a hydroxyl group, a linear or branched alkyl group or a substituted or unsubstituted aryl group, with the proviso that R1 and R2 may be the same or different from each other, R3 is a linear or branched alkylene group or arylene group, and X is an acidic solubilizing group.Type: ApplicationFiled: March 10, 2009Publication date: January 13, 2011Applicant: CANON KABUSHIKI KAISHAInventors: Hirokazu Hyakuda, Hiroshi Kakihira, Hisao Kamo
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Patent number: 7868121Abstract: “A high-molecular compound or high-molecular antioxidant obtained by reacting at least three compounds of (A) a sulfur-containing organic compound having at least two active hydrogen atoms, (B) a polyisocyanate compound having at least two isocyanate groups and (C) an amine compound having at least two active hydrogen atoms and then cationizing with an acid at least some of amino groups in a resultant reaction product” or “a high-molecular antioxidant obtained by reacting at least three compounds of (A) a sulfur-containing organic compound having at least two active hydrogen atoms, (B) a polyisocyanate compound having at least two isocyanate groups and (E) a nonionic polyol compound having at least two active hydrogen atoms” and a recording medium obtained by using the high-molecular antioxidant.Type: GrantFiled: April 28, 2005Date of Patent: January 11, 2011Assignee: Canon Finetech Inc.Inventors: Hiroshi Kakihira, Hirokazu Hyakuda
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Patent number: 7846516Abstract: The invention provides an ink jet recording medium which attains the prevention of the bronzing of cyan ink and the prevention of the migration of magenta ink at the same time and is excellent in image characteristics. The ink jet recording medium comprises a substrate and an ink-receiving layer provided with at least an upper layer as the outermost layer and a lower layer as a layer lying just under the upper layer, both layers having a porous structure formed of an alumina hydrate and a binder, wherein both of the upper and lower layers contain an alkylsulfonic acid and only the lower layer contains a cationic polymer.Type: GrantFiled: September 9, 2008Date of Patent: December 7, 2010Assignee: Canon Kabushiki KaishaInventors: Hisao Kamo, Hiroshi Asakawa, Hiroshi Kakihira, Hirokazu Hyakuda, Tetsuro Noguchi
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Patent number: 7601779Abstract: A polymer compound comprises a unit composed of a sulfur-containing compound (A) having at least two active hydrogen groups, a unit composed of a compound (B) having at least two isocyanate groups and a unit composed of an amine compound (C) having at least two active hydrogen groups, and having an average particle size of 200 nm or smaller. The polymer compound can be used in a recording medium.Type: GrantFiled: February 23, 2006Date of Patent: October 13, 2009Assignee: Canon Finetech Inc.Inventors: Hirokazu Hyakuda, Hiroshi Kakihira
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Publication number: 20090011155Abstract: The invention provides an ink jet recording medium which attains the prevention of the bronzing of cyan ink and the prevention of the migration of magenta ink at the same time and is excellent in image characteristics. The ink jet recording medium comprises a substrate and an ink-receiving layer provided with at least an upper layer as the outermost layer and a lower layer as a layer lying just under the upper layer, both layers having a porous structure formed of an alumina hydrate and a binder, wherein both of the upper and lower layers contain an alkylsulfonic acid and only the lower layer contains a cationic polymer.Type: ApplicationFiled: September 9, 2008Publication date: January 8, 2009Applicant: CANON KABUSHIKI KAISHAInventors: Hisao Kamo, Hiroshi Asakawa, Hiroshi Kakihira, Hirokazu Hyakuda, Tetsuro Noguchi
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Publication number: 20070273716Abstract: “A high-molecular compound or high-molecular antioxidant obtained by reacting at least three compounds of (A) a sulfur-containing organic compound having at least two active hydrogen atoms, (B) a polyisocyanate compound having at least two isocyanate groups and (C) an amine compound having at least two active hydrogen atoms and then cationizing with an acid at least some of amino groups in a resultant reaction product” or “a high-molecular antioxidant obtained by reacting at least three compounds of (A) a sulfur-containing organic compound having at least two active hydrogen atoms, (B) a polyisocyanate compound having at least two isocyanate groups and (E) a nonionic polyol compound having at least two active hydrogen atoms” and a recording medium obtained by using the high-molecular antioxidant.Type: ApplicationFiled: April 28, 2005Publication date: November 29, 2007Inventors: Hiroshi Kakihira, Hirokazu Hyakuda
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Publication number: 20060194943Abstract: Disclosed herein are a polymer compound comprising a unit composed of a sulfur-containing compound (A) having at least two active hydrogen groups, a unit composed of a compound (B) having at least two isocyanate groups and a unit composed of an amine compound (C) having at least two active hydrogen groups, and having an average particle size of 200 nm or smaller, and a recording medium containing this polymer compound.Type: ApplicationFiled: February 23, 2006Publication date: August 31, 2006Applicant: Canon Finetech Inc.Inventors: Hirokazu Hyakuda, Hiroshi Kakihira
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Publication number: 20060073287Abstract: A recording medium is provided on at least one of its opposite sides with at least one ink-receiving layer. The ink-receiving layer contains an inorganic pigment, a water-soluble resin and/or water-dispersible resin, thiodipropionic acid or its salt, and tocopherol or its derivative.Type: ApplicationFiled: December 24, 2003Publication date: April 6, 2006Inventors: Takahiro Tsutsui, Hiroshi Kakihira
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Publication number: 20050221025Abstract: An ink-jet recording sheet includes a substrate and an ink-receiving layer. The substrate is composed of a base material and polyolefin coating layers formed on opposite sides of the base material, respectively, by coating the base material at the opposite sides thereof with a polyolefin. The ink-receiving layer is composed of an alumina hydrate as a principal component and is formed on one of the polyolefin coating layers. The substrate curls toward the other one of the polyolefin coating layers to present a concave curl on a side of the other polyolefin coating layer and a convex curl on a side of the one polyolefin coating layer when the substrate is subjected to heat treatment at 60° C. and a relative humidity not higher than 45%.Type: ApplicationFiled: April 30, 2003Publication date: October 6, 2005Inventors: Akira Kita, Kenichi Kawano, Hayato Tomihara, Hiroshi Kakihira, Koji Fujimoto
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Publication number: 20050165143Abstract: A recording medium is composed of a base material and at least one ink-receiving layer arranged on at least one side of the base material. The ink-receiving layer contains at least one binder resin selected from a water-soluble resin and a water-dispersible resin, an inorganic pigment, a compound represented by the following formula (1): wherein R1 to R4 may be the same or different and each independently represents a hydrogen atom, an alkyl group, an aryl group or a group represented by —NR5R6, R5 and R6 each independently represents a hydrogen atom, an alkyl group having 1 to 5 carbon atoms, a phenyl group or a group represented by —NR7CSNR8R9, R7 to R9 may be the same or different and each independently represents a hydrogen atom, an alkyl group having 1 to 5 carbon atoms or a phenyl group, and any one of R1and R2 and any one of R3 and R4 are not fused together to form a ring, an alkylamine-epihalohydrin copolymer, and a boron compound.Type: ApplicationFiled: May 30, 2003Publication date: July 28, 2005Inventors: Kenichi Kawano, Hiroshi Kakihira
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Publication number: 20050158485Abstract: A recording medium is composed of a base material and an ink-receiving layer comprising an alumina hydrate and arranged on at least one side of the base material. When heated at 60° C. for 1 hour, the recording medium gives off a lower fatty acid at a concentration in a range of from 0.1 to 1.0 ppm/m2 L.Type: ApplicationFiled: April 25, 2003Publication date: July 21, 2005Inventors: Kenichi Kawano, Hiroshi Kakihira, Akira Kita, Hayato Tomihara, Koji Fujimoto
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Publication number: 20050158484Abstract: An ink-jet recording sheet is composed of a base material and at least one ink-receiving layer arranged on at least one side of the base material. The ink-receiving layer comprises a water-soluble resin and/or a water-dispersible resin as a binder, an inorganic pigment, thiourea or a specific derivative thereof, an acrylamide-diallylamine hydrochloride copolymer and/or a polyallylamine acetate, and a boron compound. The inorganic pigment, the thiourea or specific derivative thereof, the acrylamide-diallylamine hydrochloride copolymer and/or polyallylamine acetate and the boron compound satisfy the following equations (1) and (2): 4 (B+C+D)?A /. . . Equation (1), and (b/D):C=0:15 to 15:0.1 . . . Equation (2)wherein A, B, C, and D represent weight proportions of the inorganic pigment, the thiourea or specific derivative thereof, the acrylamide-diallylamine hydrochloride copolymer and/or polyallylamine acetate and the boron compound, respectively.Type: ApplicationFiled: April 25, 2003Publication date: July 21, 2005Inventors: Hiroshi Kakihira, Kenichi Kawano, Akira Kita, Hayato Tomihara, Koji Fujimoto