Patents by Inventor Junpei Natsui
Junpei Natsui 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: 8202821Abstract: Provided is a thermal recording material superior in color development sensitivity, and having good preservation properties such as in heat resistance, moisture resistance, water resistance and the like.Type: GrantFiled: September 26, 2007Date of Patent: June 19, 2012Assignees: Nippon Paper Industries Co., Ltd, API CorporationInventors: Junpei Natsui, Hiroshi Kohama, Mamoru Suga, Yoshimune Aosaki
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Patent number: 7651975Abstract: The present invention is a thermally sensitive recording medium containing a thermally sensitive color developing layer containing a colorless or pale colored basic leuco dye and a color-developing agent as the main components on a substrate, wherein the thermally sensitive recording layer contains an acrylic polymer obtained by the copolymerization of an alkyl acrylate, alkyl methacrylate and vinylsilane as monomer components and a colloidal. Further, the present invention is a thermally sensitive recording medium, wherein the colloidal silica possesses a chain structure.Type: GrantFiled: March 31, 2004Date of Patent: January 26, 2010Assignee: Nippon Paper Industries Co., Ltd.Inventors: Takashi Date, Junpei Natsui, Yoshimi Midorikawa, Tatsuo Nagai, Yoshihide Kimura
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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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Publication number: 20090280980Abstract: Provided is a thermal recording material superior in color development sensitivity, and having good preservation properties such as in heat resistance, moisture resistance, water resistance and the like.Type: ApplicationFiled: September 26, 2007Publication date: November 12, 2009Applicants: Nippon Paper Industries Co., Ltd., API CorporationInventors: Junpei Natsui, Hiroshi Kohama, Mamoru Suga, Yoshimune Aosaki
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Patent number: 7476448Abstract: A coating paper which can be removed by water comprising a substrate paper of single layer or lamellar structure having two or more layers which has at least one water decaying layer containing 5-100 wt % of water insoluble fibrous carboxy alkyl cellulose and a water base color is coated on said substrate paper, wherein a coating layer and at least a part of substrate paper which is a supporter of said coating layer has a characteristic of easily removing, dispersion and dissolving by contact with water, and can provide a water decaying coating paper used preferably for an use of label for a returnable container which may easily remove by contact with water and excellent in printing aptitude and a method for preparation thereof can be provided.Type: GrantFiled: March 21, 2006Date of Patent: January 13, 2009Assignees: Nippon Paper Industries Co., Ltd., Nippon Paper Papylia Co., Ltd.Inventors: Junpei Natsui, Akihito Ogino, Hiroki Midorikawa, Yoshiaki Ishino, Yoshiteru Kanomata
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Publication number: 20080194403Abstract: A laser recording thermally sensitive recording medium comprising, at least a photo absorbing material which absorbs laser ray and covert the laser ray to heat, colorless or pale colored basic leuco dye and organic color developing agent on a substrate as main components, wherein said photo absorbing material is a compound represented by general formula (1), wherein, n indicates an integer of from 1 to 4, and structural formula of Xn, Yn and Zn? are indicated in Table 1.Type: ApplicationFiled: January 13, 2005Publication date: August 14, 2008Inventors: Junpei Natsui, Yoshihide Kimura, 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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Patent number: 7384891Abstract: Provided is a thermally sensitive recording medium which exhibits high recording sensitivity, high heat resistance of ground color part and excellent preserving stability of images. A thermally sensitive recording medium, comprising a thermally sensitive recording layer containing a colorless or pale colored basic colorless dye and an organic color developing agent as main components on a substrate, wherein said thermally sensitive recording layer contains at least one compound represented by general formula (1) and contains at least one compound selected from the group consisting of 3-{[(phenylamino)carbonyl]amino}benzensulfoneamide represented by formula (2), an ureaurethane compound represented by formula (3) and a copolymer of glysidilmethacrylate and vinyl monomer (average molecular weight is 9000-11000, epoxy equivalent is 300-600 and melting point is 110° C. or less) as a stabilizer.Type: GrantFiled: June 27, 2003Date of Patent: June 10, 2008Assignee: Nippon Paper Industries Co., Ltd.Inventors: Junpei Natsui, Yuji Tsuzuki, Kaoru Hamada, Takashi Date
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Patent number: 7378374Abstract: A thermally sensitive recording medium containing a thermally sensitive recording medium providing an undercoating layer containing a pigment and a binder as main components and a thermally sensitive recording layer containing a colorless or pale colored basic leuco dye and a color developing agent, which reacts with said basic leuco dye, as main components on a substrate, wherein the undercoating layer contains carboxymethyl cellulose having an etherification degree of from 0.55 to 0.75 and hydroxyethyl cellulose from the view point of high effectiveness.Type: GrantFiled: August 28, 2003Date of Patent: May 27, 2008Assignee: Nippon Paper Industries Co., Ltd.Inventors: Masayuki Watanabe, Kaoru Hamada, Junpei Natsui, Yuji Tsuzuki, Takashi Date
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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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Patent number: 7312176Abstract: A thermally sensitive recording medium including on a support a thermally sensitive color development layer containing: a compound represented by the following general formula (1) as an organic color developing agent; and an oxalate compound represented by the following general formula (2) as a sensitizer. (In the formula (1): M represents CO or NRCO; when M is CO, m1 is 1; and when m1 is 0 and M is NRCO, B is not 0.Type: GrantFiled: October 24, 2003Date of Patent: December 25, 2007Assignee: Nippon Paper Industries Co., Ltd.Inventors: Kaoru Hamada, Kenji Hirai, Takanori Otsuhata, Takashi Date, Junpei Natsui, Yoshihide Kimura, Aya Katoh
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Publication number: 20060216537Abstract: A coating paper which can be removed by water comprising a substrate paper of single layer or lamellar structure having two or more layers which has at least one water decaying layer containing 5-100 wt % of water insoluble fibrous carboxy alkyl cellulose and a water base color is coated on said substrate paper, wherein a coating layer and at least a part of substrate paper which is a supporter of said coating layer has a characteristic of easily removing, dispersion and dissolving by contact with water, and can provide a water decaying coating paper used preferably for an use of label for a returnable container which may easily remove by contact with water and excellent in printing aptitude and a method for preparation thereof can be provided.Type: ApplicationFiled: March 21, 2006Publication date: September 28, 2006Inventors: Junpei Natsui, Akihito Ogino, Hiroki Midorikawa, Yoshiaki Ishino, Yoshiteru Kanomata
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Publication number: 20060191433Abstract: The present invention is a thermally sensitive recording medium comprising a thermally sensitive color developing layer containing colorless or pale colored basic leuco dye and a color developing agent as main components on a substrate, wherein said thermally sensitive recording layer is comprising an acrylic polymer obtained by copolymerization of alkyl acrylate, alkyl methacrylate and vinylsilane as monomer components and a colloidal silica, further, the present invention is a thermally sensitive recording medium, wherein said colloidal silica is possessing chain structure.Type: ApplicationFiled: March 31, 2004Publication date: August 31, 2006Inventors: Takashi Date, Junpei Natsui, Yoshimi Midorikawa, Tatsuo Nagai, Yoshihide Kimura
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Publication number: 20060125909Abstract: A thermally sensitive recording medium including on a support a thermally sensitive color development layer containing: a compound represented by the following general formula (1) as an organic color developing agent; and an oxalate compound represented by the following general formula (2) as a sensitizer. (In the formula (1): M represents CO or NRCO; when M is CO, m1 is 1; and when m1 is 0 and M is NRCO, B is not 0.Type: ApplicationFiled: October 24, 2003Publication date: June 15, 2006Inventors: Kaoru Hamada, Kenji Hirai, Takanori Otsuhata, Takashi Date, Junpei Natsui, Yoshihide Kimura, Aya Katoh
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Publication number: 20060007765Abstract: A thermally sensitive recording medium comprising, a thermally sensitive recording medium providing an undercoating layer containing a pigment and a binder as main components and a thermally sensitive recording layer containing a colorless or pale colored basic leuco dye and a color developing agent, which reacts with said basic leuco dye, as main components on a substrate, wherein said undercoating layer contains carboxymethyl cellulose whose etherification degree is from 0.55 to 0.75. Causing the undercoating layer to further contain hydroxyethyl cellulose from the view point of high effectiveness.Type: ApplicationFiled: August 28, 2003Publication date: January 12, 2006Inventors: Masayuki Watanabe, Kaoru Hamada, Junpei Natsui, Yuji Tsuzuki, Takashi Date
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Publication number: 20050264644Abstract: Provided is a thermally sensitive recording medium which exhibits high recording sensitivity, high heat resistance of ground color part and excellent preserving stability of images. A thermally sensitive recording medium, comprising a thermally sensitive recording layer containing a colorless or pale colored basic colorless dye and an organic color developing agent as main components on a substrate, wherein said thermally sensitive recording layer contains at least one compound represented by general formula (1) and contains at least one compound selected from the group consisting of 3-{[(phenylamino)carbonyl]amino}benzensulfoneamide represented by formula (2), an ureaurethane compound represented by formula (3) and a copolymer of glysidilmethacrylate and vinyl monomer (average molecular weight is 9000-11000, epoxy equivalent is 300-600 and melting point is 110° C. or less) as a stabilizer.Type: ApplicationFiled: June 27, 2003Publication date: December 1, 2005Inventors: Junpei Natsui, Yuji Tsuzuki, Kaoru Hamada, Takashi Date