Patents by Inventor Seiki Yoneshige
Seiki Yoneshige 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: 11560672Abstract: The present invention aims to develop a technique for efficiently preparing deinked pulp from prints made with UV-curable inks. According to the processes for preparing deinked pulp of the present invention, high quality deinked pulp can be obtained by performing the steps of: disintegrating printed waste paper containing UV prints in water to give a waste paper slurry; and applying a mechanical process to the waste paper slurry using a rotary disintegrator.Type: GrantFiled: February 21, 2019Date of Patent: January 24, 2023Assignee: NIPPON PAPER INDUSTRIES CO., LTD.Inventors: Hirohiko Koizumi, Masato Takayama, Seiki Yoneshige, Shisei Goto
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Publication number: 20210025113Abstract: The present invention aims to develop a technique for efficiently preparing deinked pulp from prints made with UV-curable inks. According to the processes for preparing deinked pulp of the present invention, high quality deinked pulp can be obtained by performing the steps of: disintegrating printed waste paper containing UV prints in water to give a waste paper slurry; and applying a mechanical process to the waste paper slurry using a rotary disintegrator.Type: ApplicationFiled: February 21, 2019Publication date: January 28, 2021Inventors: Hirohiko KOIZUMI, Masato TAKAYAMA, Seiki YONESHIGE, Shisei GOTO
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Patent number: 7829182Abstract: A coated printing paper offering high gloss, no mottled impression, sufficiently practical levels of printability in terms of ink-drying property and surface peel strength, and good productivity achieved by elimination of deposits on the calender rolls, wherein the coated printing paper comprises a base paper and a coating layer comprising pigment and adhesive formed on the base paper, and wherein a surface layer comprising 100 weight-parts of thermoplastic copolymer with a glass-transition temperature of 80° C. or above and 3 to 100 weight-parts of surface sizing agent of styrene-acrylic, olefin or styrene-maleic acid copolymer type is formed on the coating layer.Type: GrantFiled: March 29, 2002Date of Patent: November 9, 2010Assignee: Nippon Paper Industries, Co., Ltd.Inventors: Chizuru Wakai, Hidehiko Kai, Seiki Yoneshige, Hirokazu Morii
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Patent number: 7618922Abstract: A thermally-sensitive recording medium having a protecting layer formed on a thermally-sensitive recording layer containing a colorless or pale-colored electron-donating leuco dye and electron-accepting color-developing agent. The thermally-sensitive recording layer is formed on a substrate, and the protecting layer contains a resin that contains a carboxyl group, epichlorohydrin resin and modified polyamine/amide resin, and the thermally-sensitive recording medium exhibits sufficient resistant against water such as rain or humidity, and further is excellent in printing run-ability (head debris and sticking) and sensitivity.Type: GrantFiled: December 6, 2005Date of Patent: November 17, 2009Assignee: Nippon Paper Industries Co., Ltd.Inventors: Akihito Ogino, Seiki Yoneshige, Junpei Natsui, Jun Makihara, Naoki Negishi
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Patent number: 7476642Abstract: Provision of a thermally sensitive recording medium made up of an undercoating layer containing a pigment and a binder as main components and a thermally sensitive color-developing layer containing a colorless or pale-colored basic leuco dye and a color-developing agent which develops a color by reacting with said basic leuco dye as main components on a substrate, wherein the undercoating layer contains a water-retention agent and a pigment whose oil-absorbing capacity prescribed by JIS K 5105 is from 80 cc/100 g to 120 cc/100 g as a pigment. Further, the solids concentration of a coating for the undercoating layer is from 25% to 45% and the dynamic water-retention capacity, which is Water retention measured with AA-GWR, is 350 g/m2 or less.Type: GrantFiled: July 16, 2004Date of Patent: January 13, 2009Assignee: Nippon Paper Industries Co., Ltd.Inventors: Mizuho Shimoyama, Kaoru Hamada, Seiki Yoneshige, Kenji Hirai
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Patent number: 7387984Abstract: A thermally sensitive recording medium whose luster of printed part is excellent can be provided by a thermally sensitive recording medium of single layer or multi layers having at least a thermally sensitive recording layer that contains a colorless or pale colored electron donating leuco dye and an electron accepting color developing agent on a substrate comprising, containing a pigment whose aspect ratio is 30 or more in at least one layer formed on a substrate.Type: GrantFiled: August 24, 2005Date of Patent: June 17, 2008Assignee: Nippon Paper Industries Co., Ltd.Inventors: Seiki Yoneshige, Akihito Ogino, Mizuho Shimoyama, Kenji Hirai, Junpei Natsui
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Publication number: 20080139385Abstract: A thermally sensitive recording medium laminating a protecting layer on a thermally sensitive recording layer containing a colorless or pale colored electron donating leuco dye and electron accepting color developing agent, said thermally sensitive recording layer is formed on a substrate, and said protecting layer is comprising a resin that contains a carboxyl group, epichlorohydrin resin and modified polyamine/amide resin, and said thermally sensitive recording medium exhibits sufficient resistance against water such as rain or humidity, further excellent in printing run-ability (head debris and sticking) and sensitivity.Type: ApplicationFiled: December 6, 2005Publication date: June 12, 2008Inventors: Akihito Ogino, Seiki Yoneshige, Junpei Natsui, Jun Makihara, Naoki Negishi
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Publication number: 20080076663Abstract: A thermally sensitive recording medium whose luster of printed part is excellent can be provided by a thermally sensitive recording medium of single layer or multi layers having at least a thermally sensitive recording layer that contains a colorless or pale colored electron donating leuco dye and an electron accepting color developing agent on a substrate comprising, containing a pigment whose aspect ratio is 30 or more in at least one layer formed on a substrate.Type: ApplicationFiled: August 24, 2005Publication date: March 27, 2008Inventors: Seiki Yoneshige, Akihito Ogino, Mizuho Shimoyama, Kenji Hirai, Junpei Natsui
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Publication number: 20070231513Abstract: Provision of a thermally sensitive recording medium comprising an undercoating layer containing a pigment and a binder as main components and a thermally sensitive color developing layer containing colorless or pale colored basic leuco dye and a color developing agent which develops color by reacting with said basic leuco dye as main components on a substrate, wherein said undercoating layer contains a water-retention agent and a pigment whose oil absorbing capacity prescribed by JIS K 5105 is from 80 cc/100 g to 120 cc/100 g as a pigment, further solid concentration of a coating for the undercoating layer is from 25% to 45% and dynamic water-retention capacity, which is Water retention measured with AA-GWR, is 350 g/m2 or less.Type: ApplicationFiled: July 16, 2004Publication date: October 4, 2007Inventors: Mizuho Shimoyama, Kaoru Hamada, Seiki Yoneshige, Kenji Hirai
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Publication number: 20050170110Abstract: A coated printing paper offering high gloss, no mottled impression, sufficiently practical levels of printability in terms of ink-drying property and surface peel strength, and good productivity achieved by elimination of deposits on the calender rolls, wherein the coated printing paper comprises a base paper and a coating layer comprising pigment and adhesive formed on the base paper, and wherein a surface layer comprising 100 weight-parts of thermoplastic copolymer with a glass-transition temperature of 80° C. or above and 3 to 100 weight-parts of surface sizing agent of styrene-acrylic, olefin or styrene-maleic acid copolymer type is formed on the coating layer.Type: ApplicationFiled: March 29, 2002Publication date: August 4, 2005Inventors: Chizuru Wakai, Hidehiko Kai, Seiki Yoneshige, Hirokazu Morii
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Patent number: 6583086Abstract: A thermally sensitive recording medium that contains a compound represented by general formula (1) as a color developer, and a compound represented by general formula (2) or general formula (3) as a sensitizer. The said thermally sensitive recording medium has sufficient color developing sensitivity with lower impressive energy, and has good image preservability of recorded part, good resistance to humid and heat resistance of background white paper part. In the formulae, R1 represents a hydrogen atom, a methyl group or a chlorine atom, R2 and R3 represents a methyl group, an alkoxy group or an allyloxy group, m and n represents an integer of 1-5, R4 represents an alkyl group, an alkoxy group of carbon number 1-6 or an electron withdrawing group and o represents an integer of 0-2.Type: GrantFiled: June 9, 2000Date of Patent: June 24, 2003Assignee: Nippon Paper Industries Co. Ltd.Inventors: Seiki Yoneshige, Tomoyuki Nakano, Reiji Ohashi