Patents by Inventor Yukiko Tachibana
Yukiko Tachibana 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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Patent number: 8745797Abstract: The objective of the present invention is to provide a mattress including a plurality of cells provided on a body pressure working surface of a substrate that supports a human body, and a pressure control means that changes a setting of a height of each cell by adjusting a pressure in a fluid chamber formed within the cell. An elastic cushion layer is provided on a body pressure working surface of the cells, and a constricted portion is formed in a middle in the height of the each cell so that the body pressure working surface of the cell is allowed to tilt following deformation of the cushion layer as a result of the cells' precession-deformation at the constricted portion.Type: GrantFiled: June 5, 2013Date of Patent: June 10, 2014Assignees: Tokai Rubber Industries, Ltd., Kyushu University, National University CorporationInventors: Akitsugu Misaki, Shin-ichiro Takasugi, Shuji Fukugawa, Mika Wada, Kiyoe Harada, Keiko Miyazaki, Yukiko Tachibana, Yukihide Iwamoto
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Publication number: 20130263379Abstract: The objective of the present invention is to provide a mattress including a plurality of cells provided on a body pressure working surface of a substrate that supports a human body, and a pressure control means that changes a setting of a height of each cell by adjusting a pressure in a fluid chamber formed within the cell. An elastic cushion layer is provided on a body pressure working surface of the cells, and a constricted portion is formed in a middle in the height of the each cell so that the body pressure working surface of the cell is allowed to tilt following deformation of the cushion layer as a result of the cells' precession-deformation at the constricted portion.Type: ApplicationFiled: June 5, 2013Publication date: October 10, 2013Applicants: KYUSHU UNIVERSITY, NATIONAL UNIVERSITY CORPORATION, TOKAI RUBBER INDUSTRIES, LTD.Inventors: Akitsugu MISAKI, Shin-ichiro TAKASUGI, Shuji FUKAGAWA, Mika WADA, Kiyoe HARADA, Keiko MIYAZAKI, Yukiko TACHIBANA, Yukihide IWAMOTO
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Patent number: 7771526Abstract: An ink jet aqueous ink mainly containing a water-insoluble coloring material, a water-soluble organic solvent, an auxiliary ingredient and water is characterized by containing as an auxiliary ingredient at least one ethylene oxide adduct of an ester of cholesterin, lanosterin or agnosterin and a hydroxyl fatty acid.Type: GrantFiled: November 2, 2006Date of Patent: August 10, 2010Assignee: Canon Finetech Inc.Inventors: Tomoya Yamamoto, Suzuka Ueno, Yukiko Tachibana
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Patent number: 7481525Abstract: The invention provides an ink-jet water-based ink that can stably record images having high fastness properties and excellent quality over a long period of time even in any case, and further provides an ink-jet recording method, by which images having excellent fastness properties and quality can be recorded, and an ink cartridge and an ink-jet recording apparatus containing such an ink. The ink-jet water-based ink principally includes a water-insoluble coloring material, a water-soluble organic solvent, an auxiliary component and water, wherein at least polyoxyethylene castor oil or polyoxyethylene hardened castor oil is contained as the auxiliary component.Type: GrantFiled: February 23, 2006Date of Patent: January 27, 2009Assignee: Canon Finetech Inc.Inventors: Tomoya Yamamoto, Suzuka Ueno, Yukiko Tachibana
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Patent number: 7481524Abstract: In the present invention, an inkjet recording ink can be provided, which ink can record stably an image with good fastness and elegant-quality over a long period in any conditions. The ink includes a high-molecular dispersant, a water-insoluble colorant, water-soluble organic solvent and water, in which the high-molecular dispersant is a block copolymer including at least one hydrophobic block and at least one hydrophilic block, which have been obtained by polymerizing vinyl ethers as monomers, respectively; and the water-insoluble colorant is a specific pigment. Further the present invention can provide a inkjet recording method, an inkjet cartridge, and an inkjet recording system.Type: GrantFiled: October 20, 2004Date of Patent: January 27, 2009Assignee: Canon Finetech Inc.Inventors: Tomoya Yamamoto, Hitoshi Inoue, Yukiko Tachibana, Takayuki Ookawa, Junko Morioka
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Patent number: 7232211Abstract: An inkjet recording ink is composed of an encapsulated water-insoluble colorant encapsulated with a high-molecular dispersant, a water-soluble organic solvent, and water. The water-insoluble colorant is at least one colorant selected from the group consisting of C.I. Solvent Yellow 21, 42, 79, 82, 83:1, 88 and 151, at least one colorant selected from the group consisting of C.I. Solvent Red 8, 49, 83:1, 91, 127 and 218, at least one colorant selected from the group consisting of C.I. Solvent Black 3, 27, 29 and 45, or at least one colorant selected from the group consisting of C.I. Solvent Blue 25, 38, 44, 67 and 70. The high-molecular dispersant is a block copolymer comprising at least one hydrophobic block and at least one hydrophilic block, which have been obtained by polymerizing vinyl ethers as monomers, respectively. The inkjet recording ink can stably record images of high fastness and excellent quality over a long period even under severe environmental conditions.Type: GrantFiled: December 18, 2003Date of Patent: June 19, 2007Assignee: Canon Finetech Inc.Inventors: Tomoya Yamamoto, Yukiko Tachibana, Hitoshi Inoue, Ryoji Yashiro, Takayuki Ookawa, Junko Morioka
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Patent number: 7216965Abstract: A water-based inkjet printer ink contains at least a colorant and a resin. The resin is a block copolymer, which contains at least one hydrophilic block and at least one hydrophobic block. Each of the blocks is a vinyl ether polymer, wherein said block copolymer is obtained by polymerizing vinyl ethers as monomer by using at least one aluminum compound selected from the group consisting of tripropylaluminum, triisopropylaluminum and aluminum compounds as Ziegler-Natta catalysts.Type: GrantFiled: December 19, 2003Date of Patent: May 15, 2007Assignee: Canon Finetech Inc.Inventors: Junko Morioka, Takayuki Ookawa, Tomoya Yamamoto, Yukiko Tachibana, Hitoshi Inoue
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Publication number: 20070105980Abstract: An ink jet aqueous ink mainly containing a water-insoluble coloring material, a water-soluble organic solvent, an auxiliary ingredient and water is characterized by containing as an auxiliary ingredient at least one ethylene oxide adduct of an ester of cholesterin, lanosterin or agnosterin and a hydroxyl fatty acid.Type: ApplicationFiled: November 2, 2006Publication date: May 10, 2007Applicant: CANON FINETECH INC.Inventors: Tomoya YAMAMOTO, Suzuka Ueno, Yukiko Tachibana
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Publication number: 20070103525Abstract: In the present invention, an inkjet recording ink can be provided, which ink can record stably an image with good fastness and elegant-quality over a long period in any conditions. The ink comprises a high-molecular dispersant, a water-insoluble colorant, water-soluble organic solvent and water, in which the high-molecular dispersant is a block copolymer comprising at least one hydrophobic block and at least one hydrophilic block, which have been obtained by polymerizing vinyl ethers as monomers, respectively; and the water-insoluble colorant is a specific pigment. Further the present invention can provide a inkjet recording method, an inkjet cartridge, and an inkjet recording system.Type: ApplicationFiled: October 20, 2004Publication date: May 10, 2007Inventors: Tomoya Yamamoto, Hitoshi Inoue, Yukiko Tachibana, Takayuki Ookawa, Junko Morioka
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Publication number: 20070032570Abstract: Disclosed herein is an ink comprising a coloring agent composed of composite particles of a coloring material and inorganic fine particles, a polymeric dispersing agent and a solvent, wherein the polymeric dispersing agent is composed of a block copolymer of a polyvinyl ether structure having a hydrophilic segment and a hydrophobic segment.Type: ApplicationFiled: November 10, 2004Publication date: February 8, 2007Applicants: Canon Kabushiki Kaisha, Canon Finetech Inc.Inventors: Koichi Sato, Ikuo Nakazawa, Hitoshi Inoue, Tomoya Yamamoto, Yukiko Tachibana
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Publication number: 20070004822Abstract: A water-based ink for inkjet printers contains at least a water-insoluble colorant, a block copolymer of a polyvinyl ether structure comprising at least one kind of hydrophilic segments and at least one kind of hydrophobic segments, water and an alkali. Each of the hydrophilic segments contains acidic groups. A content of the alkali is such that, when an infrared absorption intensity ascribable to ionic groups to be formed upon addition of an excess amount of the alkali to the block copolymer is supposed to be 100%, an infrared absorption intensity ascribable to ionic groups formed by dissociation of the acidic groups contained in the block copolymer becomes at least 80%, with a proviso that the content does not exceed twice as much as a smallest amount of the alkali that an infrared absorption intensity ascribable to ionic groups to be formed from the block copolymer becomes 100%.Type: ApplicationFiled: October 18, 2004Publication date: January 4, 2007Inventors: Hitoshi Inoue, Tomoya Yamamoto, Yukiko Tachibana, Takayuki Ookawa, Junko Morioka
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Publication number: 20060192826Abstract: The invention provides an ink-jet water-based ink that can stably record images having high fastness properties and excellent quality over a long period of time even in any case, and further provides an ink-jet recording method, by which images having excellent fastness properties and quality can be recorded, and an ink cartridge and an ink-jet recording apparatus containing such an ink. The ink-jet water-based ink principally comprises a water-insoluble coloring material, a water-soluble organic solvent, an auxiliary component and water, wherein at least polyoxyethylene castor oil or polyoxyethylene hardened castor oil is contained as the auxiliary component.Type: ApplicationFiled: February 23, 2006Publication date: August 31, 2006Applicant: CANON FINETECH INC.Inventors: Tomoya Yamamoto, Suzuka Ueno, Yukiko Tachibana
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Publication number: 20060160924Abstract: An inkjet recording ink contains a high-molecular dispersant, a water-insoluble colorant, a co-solvent, and water as principal components. The co-solvent is composed at least of (a) a polyol-alkylene oxide adduct represented by the following formula 1 and (b) an ethylene oxide-propylene oxide block copolymer represented by the following formula 2 or 3: wherein R represents a lower alkyl group or —CH2O(CH2CHXO)kH (X: H or CH3, k: 1 to 20), l+m+n is 3 to 60; x1+z1 is 4 to 100, and y1 is 1 to 50; and x2+z2 is 2 to 100, and y2 is 2 to 50.Type: ApplicationFiled: January 19, 2006Publication date: July 20, 2006Inventors: Suzuka Kakuchi, Yukiko Tachibana, Tomoya Yamamoto
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Publication number: 20060044374Abstract: An inkjet recording ink is composed of a high-molecular dispersant, a water-insoluble colorant, a water-soluble organic solvent, and water. The water-insoluble colorant is at least one colorant selected from the group consisting of C.I. Solvent Yellow 21, 42, 79, 82, 83:1, 88 and 151, at least one colorant selected from the group consisting of C.I. Solvent Red 8, 49, 83:1, 91, 127 and 218, at least one colorant selected from the group consisting of C.I. Solvent Black 3, 27, 29 and 45, or at least one colorant selected from the group consisting of C.I. Solvent Blue 25, 38, 44, 67 and 70. The high-molecular dispersant is a block copolymer comprising at least one hydrophobic block and at least one hydrophilic block, which have been obtained by polymerizing vinyl ethers as monomers, respectively. The inkjet recording ink can stably record images of high fastness and excellent quality over a long period even under severe environmental conditions.Type: ApplicationFiled: December 18, 2003Publication date: March 2, 2006Inventors: Tomoya Yamamoto, Yukiko Tachibana, Hitoshi Inoue, Ryoii Yashiro, Takayuki Ookawa, Junko Morioka
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Publication number: 20050225617Abstract: A water-based inkjet printer ink contains at least a colorant and a resin. The resin is a block copolymer, which contains at least one hydrophilic block and at least one hydrophobic block. Each of the blocks is a vinyl ether polymer. The ink further contains aluminum or an aluminum compound.Type: ApplicationFiled: December 19, 2003Publication date: October 13, 2005Applicant: CANON FINETECHN INCInventors: Junko Morioka, Takayuki Ookawa, Tomoya Yamamoto, Yukiko Tachibana, Hitoshi Inoue