Patents by Inventor Kazuhisa Hirabayashi
Kazuhisa Hirabayashi 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: 9688857Abstract: A compound represented by the formula (I) (R1 represents hydrogen atom or a monovalent substituent; R2 and R3 represent hydrogen atom, an alkyl group, or a halogen atom; R4 and R5 represent an alkyl group or an aryl group; R6 and R7 represent hydrogen atom, an alkyl group, or a halogen atom; R8 represent hydroxy group or a dialkoxyboranetriyl group; and X represents silicon atom, germanium atom, or tin atom), which is a novel fluorophore usable as a mother nucleus of an off/on type fluorescent probe not utilizing the intramolecular photoinduced electron transfer.Type: GrantFiled: October 13, 2016Date of Patent: June 27, 2017Assignee: THE UNIVERSITY OF TOKYOInventors: Tetsuo Nagano, Kenjiro Hanaoka, Yuichiro Koide, Takahiro Egawa, Kazuhisa Hirabayashi
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Publication number: 20170096561Abstract: A compound represented by the formula (I) (R1 represents hydrogen atom or a monovalent substituent; R2 and R3 represent hydrogen atom, an alkyl group, or a halogen atom; R4 and R5 represent an alkyl group or an aryl group; R6 and R7 represent hydrogen atom, an alkyl group, or a halogen atom; R8 represent hydroxy group or a dialkoxyboranetriyl group; and X represents silicon atom, germanium atom, or tin atom), which is a novel fluorophore usable as a mother nucleus of an off/on type fluorescent probe not utilizing the intramolecular photoinduced electron transfer.Type: ApplicationFiled: October 13, 2016Publication date: April 6, 2017Applicant: THE UNIVERSITY OF TOKYOInventors: Tetsuo NAGANO, Kenjiro HANAOKA, Yuichiro KOIDE, Takahiro EGAWA, Kazuhisa HIRABAYASHI
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Publication number: 20160047748Abstract: [Problem] To provide a fluorescent probe having a novel fluorophore. [Solution] A compound represented by general formula (I), or a salt thereof.Type: ApplicationFiled: March 4, 2014Publication date: February 18, 2016Applicant: THE UNIVERSITY OF TOKYOInventors: Tetsuo NAGANO, Kenjiro HANAOKA, Kazuhisa HIRABAYASHI
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Patent number: 9250232Abstract: A compound represented by the formula (I) [R1 represents hydrogen atom or a substituent; R2, R3, R6, and R7 represent hydrogen atom, an alkyl group, a halogen atom, or a hydrophilic substituent; R4 and R5 represent an alkyl group or an aryl group; R8 and R9 represent a group cleaved by contact with an object substance for measurement; and X represents silicon atom, germanium atom, or tin atom] or a salt thereof, which is useful as a fluorescent probe that emits red fluorescence by contact with an object substance for measurement.Type: GrantFiled: February 15, 2013Date of Patent: February 2, 2016Assignee: THE UNIVERSITY OF TOKYOInventors: Tetsuo Nagano, Kenjiro Hanaoka, Kazuhisa Hirabayashi, Yuko Toki
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Publication number: 20160023988Abstract: A compound represented by the formula (I) (R1 represents hydrogen atom or a monovalent substituent; R2 and R3 represent hydrogen atom, an alkyl group, or a halogen atom; R4 and R5 represent an alkyl group or an aryl group; R6 and R7 represent hydrogen atom, an alkyl group, or a halogen atom; R8 represent hydroxy group or a dialkoxyboranetriyl group; and X represents silicon atom, germanium atom, or tin atom), which is a novel fluorophore usable as a mother nucleus of an off/on type fluorescent probe not utilizing the intramolecular photoinduced electron transfer.Type: ApplicationFiled: September 15, 2015Publication date: January 28, 2016Applicant: THE UNIVERSITY OF TOKYOInventors: Tetsuo NAGANO, Kenjiro HANAOKA, Yuichiro KOIDE, Takahiro EGAWA, Kazuhisa HIRABAYASHI
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Patent number: 9187499Abstract: A compound represented by the formula (I) (R1 represents hydrogen atom or a monovalent substituent; R2 and R3 represent hydrogen atom, an alkyl group, or a halogen atom; R4 and R5 represent an alkyl group or an aryl group; R6 and R7 represent hydrogen atom, an alkyl group, or a halogen atom; R8 represent hydroxy group or a dialkoxyboranetriyl group; and X represents silicon atom, germanium atom, or tin atom), which is a novel fluorophore usable as a mother nucleus of an off/on type fluorescent probe not utilizing the intramolecular photoinduced electron transfer.Type: GrantFiled: January 19, 2012Date of Patent: November 17, 2015Assignee: THE UNIVERSITY OF TOKYOInventors: Tetsuo Nagano, Kenjiro Hanaoka, Yuichiro Koide, Takahiro Egawa, Kazuhisa Hirabayashi
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Publication number: 20150212073Abstract: A compound represented by the formula (I) [R1 represents hydrogen atom or a substituent; R2, R3, R6, and R7 represent hydrogen atom, an alkyl group, a halogen atom, or a hydrophilic substituent; R4 and R5 represent an alkyl group or an aryl group; R8 and R9 represent a group cleaved by contact with an object substance for measurement; and X represents silicon atom, germanium atom, or tin atom] or a salt thereof, which is useful as a fluorescent probe that emits red fluorescence by contact with an object substance for measurement.Type: ApplicationFiled: February 15, 2013Publication date: July 30, 2015Inventors: Tetsuo Nagano, Kenjiro Hanaoka, Kazuhisa Hirabayashi, Yuko Toki
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Publication number: 20130289256Abstract: A compound represented by the formula (I) (R1 represents hydrogen atom or a monovalent substituent; R2 and R3 represent hydrogen atom, an alkyl group, or a halogen atom; R4 and R5 represent an alkyl group or an aryl group; R6 and R7 represent hydrogen atom, an alkyl group, or a halogen atom; R8 represent hydroxy group or a dialkoxyboranetriyl group; and X represents silicon atom, germanium atom, or tin atom), which is a novel fluorophore usable as a mother nucleus of an off/on type fluorescent probe not utilizing the intramolecular photoinduced electron transfer.Type: ApplicationFiled: January 19, 2012Publication date: October 31, 2013Applicant: THE UNIVERSITY OF TOKYOInventors: Tetsuo Nagano, Kenjiro Hanaoka, Yuichiro Koide, Takahiro Egawa, Kazuhisa Hirabayashi