Patents by Inventor Shuntaro Kinoshita
Shuntaro Kinoshita 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: 11529819Abstract: An object of the present invention is to provide a recording material or a recording sheet using, as a color-developing agent, a non-phenol-based compound good in color developing performance and the like. A compound represented by the following formula (I) is used as the color-developing agent: (wherein X represents CH2 or the like; R1 to R3 each independently represent a hydrogen atom, a halogen atom or the like; n1 and n3 each independently represent any integer of 1 to 5; two groups represented by R3 adjacent to each other on a benzene ring optionally bond to each other to form an optionally substituted 6-membered ring; and n2 represents any integer of 1 to 4).Type: GrantFiled: June 1, 2018Date of Patent: December 20, 2022Assignee: NIPPON SODA CO., LTD.Inventors: Hiroshi Sakai, Kayoko Tada, Shuntaro Kinoshita
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Patent number: 11370240Abstract: A recording material and a recording sheet having better color-developing performance, storage stability, etc. A recording material which contains (A) at least one color former, (B) at least one compound selected from the group including compounds represented by the following formula (I), and (C) at least one compound selected from the group including compounds represented by the following formula (II) (wherein R1 to R3 each represent a halogen atom, a nitro group, a C1 to C6 alkyl group, a C1 to C6 alkoxy group, a C2 to C6 alkenyl group or a C1 to C6 haloalkyl group, n1 and n3 each independently represent any integer of 0 to 5, n2 represents any integer of 0 to 4, and X represents —SO2—O— or —O—SO2—).Type: GrantFiled: January 24, 2018Date of Patent: June 28, 2022Assignee: NIPPON SODA CO., LTD.Inventors: Shuntaro Kinoshita, Kayoko Tada, Hiroshi Sakai, Kazumi Hamakawa
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Patent number: 11142015Abstract: A recording material and a recording sheet having excellent color-developing performance and storage stability and particularly having excellent heat-resistance of background. The recording material contains a color former (A), a compound represented by formula (I) (B), and a compound represented by formula (II) (C).Type: GrantFiled: August 21, 2017Date of Patent: October 12, 2021Assignee: NIPPON SODA CO., LTD.Inventors: Shuntaro Kinoshita, Kayoko Nomura, Kazumi Hamakawa, Hiroshi Sakai
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Publication number: 20200180335Abstract: A recording material and a recording sheet having excellent color-developing performance and storage stability and particularly having excellent heat-resistance of background. The recording material contains a color former (A), a compound represented by formula (I) (B), and a compound represented by formula (II) (C).Type: ApplicationFiled: August 21, 2017Publication date: June 11, 2020Applicant: NIPPON SODA CO., LTD.Inventors: Shuntaro KINOSHITA, Kayoko NOMURA, Kazumi HAMAKAWA, Hiroshi SAKAI
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Publication number: 20200086669Abstract: An object of the present invention is to provide a recording material or a recording sheet using, as a color-developing agent, a non-phenol-based compound good in color developing performance and the like. A compound represented by the following formula (I) is used as the color-developing agent: (wherein X represents CH2 or the like; R1 to R3 each independently represent a hydrogen atom, a halogen atom or the like; n1 and n3 each independently represent any integer of 1 to 5; two groups represented by R3 adjacent to each other on a benzene ring optionally bond to each other to form an optionally substituted 6-membered ring; and n2 represents any integer of 1 to 4).Type: ApplicationFiled: June 1, 2018Publication date: March 19, 2020Applicant: NIPPON SODA CO., LTD.Inventors: Hiroshi SAKAI, Kayoko TADA, Shuntaro KINOSHITA
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Publication number: 20190381820Abstract: A recording material and a recording sheet having better color-developing performance, storage stability, etc. A recording material which contains (A) at least one color former, (B) at least one compound selected from the group including compounds represented by the following formula (I), and (C) at least one compound selected from the group including compounds represented by the following formula (II) (wherein R1 to R3 each represent a halogen atom, a nitro group, a C1 to C6 alkyl group, a C1 to C6 alkoxy group, a C2 to C6 alkenyl group or a C1 to C6 haloalkyl group, n1 and n3 each independently represent any integer of 0 to 5, n2 represents any integer of 0 to 4, and X represents —SO2—O— or —O—SO2—).Type: ApplicationFiled: January 24, 2018Publication date: December 19, 2019Applicant: NIPPON SODA CO., LTD.Inventors: Shuntaro KINOSHITA, Kayoko TADA, Hiroshi SAKAI, Kazumi HAMAKAWA
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Patent number: 10265984Abstract: The disclosure provides a novel crystal form of N-(2-(3-phenylureido)phenyl)benzenesulfonamide, which is crystalline modification thereof specified by an X-ray diffraction diagram having peaks at diffraction angles (2?±0.1°) of 23.60°, 20.80°, 12.24° and 13.80° in a powder X-ray diffractometry using Cu-K? ray.Type: GrantFiled: February 17, 2016Date of Patent: April 23, 2019Assignee: NIPPON SODA CO., LTD.Inventors: Hiroshi Sakai, Shuntaro Kinoshita
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Patent number: 10226957Abstract: An object of the invention is to provide a recording material and recording sheet having excellent color-developing performance, storage stability, etc. A recording material having good color-developing performance and storage stability may be obtained by using a specific compound having a benzhydrol skeleton as an additive in a recording material employing color development through a reaction between a color former and a color-developing agent.Type: GrantFiled: January 27, 2016Date of Patent: March 12, 2019Assignee: NIPPON SODA CO., LTD.Inventors: Shuntaro Kinoshita, Kazumi Hamakawa, Hiroshi Sakai, Kayoko Tada
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Publication number: 20180022136Abstract: The disclosure provides a novel crystal form of N-(2-(3-phenylureido)phenyl)benzenesulfonamide, which is crystalline modification thereof specified by an X-ray diffraction diagram having peaks at diffraction angles (2?±0.1°) of 23.60°, 20.80°, 12.24° and 13.80° in a powder X-ray diffractometry using Cu-K? ray.Type: ApplicationFiled: February 17, 2016Publication date: January 25, 2018Applicant: Nippon Soda Co., Ltd.Inventors: Hiroshi SAKAI, Shuntaro KINOSHITA
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Publication number: 20180022137Abstract: An object of the invention is to provide a recording material and recording sheet having excellent color-developing performance, storage stability, etc. A recording material having good color-developing performance and storage stability may be obtained by using a specific compound having a benzhydrol skeleton as an additive in a recording material employing color development through a reaction between a color former and a color-developing agent.Type: ApplicationFiled: January 27, 2016Publication date: January 25, 2018Applicant: NIPPON SODA CO., LTD.Inventors: Shuntaro KINOSHITA, Kazumi HAMAKAWA, Hiroshi SAKAI, Kayoko TADA
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Patent number: 9518011Abstract: An object of the present invention is to provide a recording material or a recording sheet using, as a color-developing agent, a non-phenol compound that is a safe compound in no danger of corresponding to an endocrine disruptor and is good in color developing performance. The non-phenol compound used in the present invention is at least one selected from the group consisting of compounds represented by the following formulas (I) to (III).Type: GrantFiled: November 19, 2013Date of Patent: December 13, 2016Assignee: NIPPON SODA CO., LTD.Inventors: Hiroshi Sakai, Tadahiro Kondo, Kayoko Tada, Shuntaro Kinoshita, Kazumi Jyujyo
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Publication number: 20150284321Abstract: An object of the present invention is to provide a recording material or a recording sheet using, as a color-developing agent, a non-phenol compound that is a safe compound in no danger of corresponding to an endocrine disruptor and is good in color developing performance. The non-phenol compound used in the present invention is at least one selected from the group consisting of compounds represented by the following formulas (I) to (III).Type: ApplicationFiled: November 19, 2013Publication date: October 8, 2015Applicant: NIPPON SODA CO., LTD.Inventors: Hiroshi Sakai, Tadahiro Kondo, Kayoko Tada, Shuntaro Kinoshita, Kazumi Jyujyo
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Patent number: 8664157Abstract: An object of the present invention is to provide a recording material or a recording sheet that is excellent not only in whiteness of a background but also in storage property for a background and an image, and further has excellent dynamic sensitivity. In order to achieve the object, a phenol compound represented by Formula (I) [wherein R1 represents a hydroxyl group or a halogen atom, p represents 0 or an integer of 1 to 5, R2 and R3 each independently represent a hydrogen atom or a C1-C6 alkyl group, R4 represents a hydrogen atom, a C1-C6 alkyl group, an optionally substituted phenyl group or an optionally substituted benzyl group; and a bond shown with a wavy line represents E- or Z-form, or a mixture thereof] and having a color space b* of 10 or less, and preferably having brightness by Hunter of 75 or more, is used as a recording material.Type: GrantFiled: August 29, 2011Date of Patent: March 4, 2014Assignee: Nippon Soda Co., Ltd.Inventors: Hiroshi Sakai, Shuntaro Kinoshita, Tadahiro Kondo, Kazumi Jyujyo
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Patent number: 8551911Abstract: An object of the present invention is to provide a recording material or a recording sheet that is excellent in background and image stabilities and further excellent in color-developing sensitivity. The recording material of the present invention contains a color-forming compound, an additive, and at least one compound represented by formula (I) [wherein R1 and R4 each independently represent a C1-C6 alkyl group or the like; p represents 0 or any integer of 1 to 4; q represents 0 or any integer of 1 to 5; when p and q represents 2 or more, each of R1 and each of R4 are the same or different; R2 and R3 each independently represent a hydrogen atom or the like; R5 represents a hydrogen atom or the like; and the bond represented by the wavy line represents E, Z, or a mixture thereof].Type: GrantFiled: September 27, 2010Date of Patent: October 8, 2013Assignee: Nippon Soda Co., Ltd.Inventors: Hiroshi Sakai, Toshio Aihara, Satoshi Kodama, Shuntaro Kinoshita, Kazumi Jyujyo, Tadahiro Kondo
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Publication number: 20130137570Abstract: An object of the present invention is to provide a recording material or a recording sheet that is excellent not only in whiteness of a background but also in storage property for a background and an image, and further has excellent dynamic sensitivity. In order to achieve the object, a phenol compound represented by Formula (I) [wherein R1 represents a hydroxyl group or a halogen atom, p represents 0 or an integer of 1 to 5, R2 and R3 each independently represent a hydrogen atom or a C1-C6 alkyl group, R4 represents a hydrogen atom, a C1-C6 alkyl group, an optionally substituted phenyl group or an optionally substituted benzyl group; and a bond shown with a wavy line represents E- or Z-form, or a mixture thereof] and having a color space b* of 10 or less, and preferably having brightness by Hunter of 75 or more, is used as a recording material.Type: ApplicationFiled: August 29, 2011Publication date: May 30, 2013Applicant: NIPPON SODA CO., LTD.Inventors: Hiroshi Sakai, Shuntaro Kinoshita, Tadahiro Kondo, Kazumi Jyujyo
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Patent number: 8431513Abstract: An object of the present invention is to provide a recording material that is excellent in color-developing properties and background and image stabilities, and a compound used therein. The present invention relates to a compound represented by the formula (I) [wherein R11 to R14 each independently represent a halogen atom or the like; n, p, q, and r each independently represent 0 or any integer of 1 to 4; m represents 0 or any integer of 1 to 2; a represents any integer of 1 to 10; R2 represents a hydrogen atom or the like; R3 represents an OR51 group or the like; and R41 and R42 each independently represent a hydrogen atom or the like], a composition containing the compound, a method for producing the compound, a recording material containing at least one compound represented by the formula (I), and a recording sheet having the recording material.Type: GrantFiled: September 28, 2010Date of Patent: April 30, 2013Assignee: Nippon Soda Co., Ltd.Inventors: Toshio Aihara, Hiroshi Sakai, Shuntaro Kinoshita, Satoshi Kodama, Tadahiro Kondo, Kazumi Jyujyo
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Publication number: 20120204763Abstract: An object of the present invention is to provide a recording material that is excellent in color-developing properties and background and image stabilities, and a compound used therein. The present invention relates to a compound represented by the formula (I) [wherein R11 to R14 each independently represent a halogen atom or the like; n, p, q, and r each independently represent 0 or any integer of 1 to 4; m represents 0 or any integer of 1 to 2; a represents any integer of 1 to 10; R2 represents a hydrogen atom or the like; R3 represents an OR51 group or the like; and R41 and R42 each independently represent a hydrogen atom or the like], a composition containing the compound, a method for producing the compound, a recording material containing at least one compound represented by the formula (I), and a recording sheet having the recording material.Type: ApplicationFiled: September 28, 2010Publication date: August 16, 2012Inventors: Toshio Aihara, Hiroshi Sakai, Shuntaro Kinoshita, Satoshi Kodama, Tadahiro Kondo, Kazumi Jyujyo
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Publication number: 20120186490Abstract: An object of the present invention is to provide a recording material or a recording sheet that is excellent in background and image stabilities and further excellent in color-developing sensitivity. The recording material of the present invention contains a color-forming compound, an additive, and at least one compound represented by formula (I) [wherein R1 and R4 each independently represent a C1-C6 alkyl group or the like; p represents 0 or any integer of 1 to 4; q represents 0 or any integer of 1 to 5; when p and q represents 2 or more, each of R1 and each of R4 are the same or different; R2 and R3 each independently represent a hydrogen atom or the like; R5 represents a hydrogen atom or the like; and the bond represented by the wavy line represents E, Z, or a mixture thereof].Type: ApplicationFiled: September 27, 2010Publication date: July 26, 2012Inventors: Hiroshi Sakai, Toshio Aihara, Satoshi Kodama, Shuntaro Kinoshita, Kazumi Jyujyo, Tadahiro Kondo