Patents by Inventor Syunsuke Ohashi
Syunsuke Ohashi 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: 8828373Abstract: A polyalkylene glycol derivative containing a compound of the formula (1): wherein R is a hydrocarbon group having 1 to 24 carbon atoms, OA1 and OA2 are each an oxyalkylene group having 2 to 4 carbon atoms, the groups represented by R are the same or different from each other in one molecule, the groups represented by OA2 are the same or different from each other in one molecule, m is an average number of moles of the above oxyalkylene group added, m represents 10 to 1000, X represents a functional group capable of chemically reacting with a bio-related substance, and Y is a linker and represents an ether bond, an amide bond, a urethane bond, an ester bond, a secondary amino group, a carbonate bond, or an alkylene group containing these bonds, polydispersity Mw/Mn of the above polyalkylene glycol derivative in gel permeation chromatography satisfying the following relationship: Mw/Mn?1.08 wherein Mw represents a weight average molecular weight and Mn represents a number average molecular weight.Type: GrantFiled: June 2, 2005Date of Patent: September 9, 2014Assignee: NOF CorporationInventors: Ken-ichiro Nakamoto, Syunsuke Ohashi, Yuji Yamamoto, Kenji Sakanoue, Chika Itoh, Tohru Yasukohchi
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Patent number: 8034981Abstract: A modified bio-related substance, wherein at least one poly(alkylene glycol)oxy group represented by the following formula (1) is combined in a molecule: wherein R is a hydrocarbon group having 1 to 24 carbon atoms, OA1 and OA2 are each an oxyalkylene group having 2 to 4 carbon atoms, the groups represented by R are the same or different from each other in one molecule, and the groups represented by OA2 are the same or different from each other in one molecule, n and m are each average number of moles of the oxyalkylene group added, n represents 0 to 1000, and m represents 10 to 1000.Type: GrantFiled: November 9, 2010Date of Patent: October 11, 2011Assignee: NOF CorporationInventors: Ken-ichiro Nakamoto, Syunsuke Ohashi, Yuji Yamamoto, Kenji Sakanoue, Chika Itoh, Tohru Yasukohchi
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Patent number: 8003117Abstract: A polyalkylene glycol derivative containing a compound of the formula (1): wherein R is a hydrocarbon group having 1 to 24 carbon atoms, OA2 is an oxyalkylene group having 2 to 4 carbon atoms, the groups represented by R are the same or different from each other in one molecule, the groups represented by OA2 are the same or different from each other in one molecule, m is an average number of moles of the oxyalkylene group added, m represents 10 to 1000, and X represents a functional group capable of chemically reactive with a bio-related substance, polydispersity Mw/Mn of the above polyalkylene glycol derivative in gel permeation chromatography satisfying the following relationship: Mw/Mn?1.07 wherein Mw represents a weight average molecular weight and Mn represents a number average molecular weight.Type: GrantFiled: June 2, 2005Date of Patent: August 23, 2011Assignee: NOF CorporationInventors: Ken-ichiro Nakamoto, Syunsuke Ohashi, Yuji Yamamoto, Kenji Sakanoue, Chika Itoh, Tohru Yasukohchi
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Publication number: 20110082277Abstract: A modified bio-related substance, wherein at least one poly(alkylene glycol)oxy group represented by the following formula (1) is combined in a molecule: wherein R is a hydrocarbon group having 1 to 24 carbon atoms, OA1 and OA2 are each an oxyalkylene group having 2 to 4 carbon atoms, the groups represented by R are the same or different from each other in one molecule, and the groups represented by OA2 are the same or different from each other in one molecule, n and m are each average number of moles of the oxyalkylene group added, n represents 0 to 1000, and m represents 10 to 1000.Type: ApplicationFiled: November 9, 2010Publication date: April 7, 2011Applicant: NOF CORPORATIONInventors: Ken-ichiro Nakamoto, Syunsuke Ohashi, Yuji Yammamoto, Kenji Sakanoue, Chika Itoh, Tohru Yasukohchi
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Patent number: 7851491Abstract: A modified bio-related substance, wherein at least one poly(alkylene glycol)oxy group represented by the following formula (1) is combined in a molecule: wherein R is a hydrocarbon group having 1 to 24 carbon atoms, OA1 and OA2 are each an oxyalkylene group having 2 to 4 carbon atoms, the groups represented by R are the same or different from each other in one molecule, and the groups represented by OA2 are the same or different from each other in one molecule, n and m are each average number of moles of the oxyalkylene group added, n represents 0 to 1000, and m represents 10 to 1000.Type: GrantFiled: March 6, 2009Date of Patent: December 14, 2010Assignee: NOF CorporationInventors: Ken-ichiro Nakamoto, Syunsuke Ohashi, Yuji Yamamoto, Kenji Sakanoue, Chika Itoh, Tohru Yasukohchi
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Publication number: 20090192320Abstract: A modified bio-related substance, wherein at least one poly(alkylene glycol)oxy group represented by the following formula (1) is combined in a molecule: wherein R is a hydrocarbon group having 1 to 24 carbon atoms, OA1 and OA2 are each an oxyalkylene group having 2 to 4 carbon atoms, the groups represented by R are the same or different from each other in one molecule, and the groups represented by OA2 are the same or different from each other in one molecule, n and m are each average number of moles of the oxyalkylene group added, n represents 0 to 1000, and m represents 10 to 1000.Type: ApplicationFiled: March 6, 2009Publication date: July 30, 2009Applicant: NOF CORPORATIONInventors: Ken-ichiro NAKAMOTO, Syunsuke Ohashi, Yuji Yamamoto, Kenji Sakanoue, Chika Itoh, Tohru Yasukohchi
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Patent number: 7524875Abstract: A modified bio-related substance, wherein at least one poly(alkylene glycol)oxy group represented by the following formula (1) is combined in a molecule: wherein R is a hydrocarbon group having 1 to 24 carbon atoms, OA1 and OA2 are each an oxyalkylene group having 2 to 4 carbon atoms, the groups represented by R are the same or different from each other in one molecule, and the groups represented by OA2 are the same or different from each other in one molecule, n and m are each average number of moles of the oxyalkylene group added, n represents 0 to 1000, and m represents 10 to 1000.Type: GrantFiled: June 2, 2005Date of Patent: April 28, 2009Assignee: NOF CorporationInventors: Ken-ichiro Nakamoto, Syunsuke Ohashi, Yuji Yamamoto, Kenji Sakanoue, Chika Itoh, Tohru Yasukohchi
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Publication number: 20060115450Abstract: A polyalkylene glycol derivative containing a compound of the formula (1): wherein R is a hydrocarbon group having 1 to 24 carbon atoms, OA1 and OA2 are each an oxyalkylene group having 2 to 4 carbon atoms, the groups represented by R are the same or different from each other in one molecule, the groups represented by OA2 are the same or different from each other in one molecule, m is an average number of moles of the above oxyalkylene group added, m represents 10 to 1000, X represents a functional group capable of chemically reacting with a bio-related substance, and Y is a linker and represents an ether bond, an amide bond, a urethane bond, an ester bond, a secondary amino group, a carbonate bond, or an alkylene group containing these bonds, polydispersity Mw/Mn of the above polyalkylene glycol derivative in gel permeation chromatography satisfying the following relationship: Mw/Mn?1.08 wherein Mw represents a weight average molecular weight and Mn represents a number average molecular weight.Type: ApplicationFiled: June 2, 2005Publication date: June 1, 2006Inventors: Ken-ichiro Nakamoto, Syunsuke Ohashi, Yuji Yamamoto, Kenji Sakanoue, Chika Itoh, Tohru Yasukohchi
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Publication number: 20060073113Abstract: A polyalkylene glycol derivative containing a compound of the formula (1): wherein R is a hydrocarbon group having 1 to 24 carbon atoms, OA2 is an oxyalkylene group having 2 to 4 carbon atoms, the groups represented by R are the same or different from each other in one molecule, the groups represented by OA2 are the same or different from each other in one molecule, m is an average number of moles of the oxyalkylene group added, m represents 10 to 1000, and X represents a functional group capable of chemically reactive with a bio-related substance, polydispersity Mw/Mu of the above polyalkylene glycol derivative in gel permeation chromatography satisfying the following relationship: Mw/Mn?1.07 wherein Mw represents a weight average molecular weight and Mn represents a number average molecular weight.Type: ApplicationFiled: June 2, 2005Publication date: April 6, 2006Inventors: Ken-ichiro Nakamoto, Syunsuke Ohashi, Yuji Yamamoto, Kenji Sakanoue, Chika Itoh, Tohru Yasukohchi
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Publication number: 20050288490Abstract: A modified bio-related substance, wherein at least one poly(alkylene glycol)oxy group represented by the following formula (1) is combined in a molecule: wherein R is a hydrocarbon group having 1 to 24 carbon atoms, OA1 and OA2 are each an oxyalkylene group having 2 to 4 carbon atoms, the groups represented by R are the same or different from each other in one molecule, and the groups represented by OA2 are the same or different from each other in one molecule, n and m are each average number of moles of the oxyalkylene group added, n represents 0 to 1000, and m represents 10 to 1000.Type: ApplicationFiled: June 2, 2005Publication date: December 29, 2005Inventors: Ken-ichiro Nakamoto, Syunsuke Ohashi, Yuji Yamamoto, Kenji Sakanoue, Chika Itoh, Tohru Yasukohchi
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Patent number: 6875841Abstract: A polyoxyalkylene derivative is represented by formula (I): wherein Z represents a residue of a compound having 2 to 8 hydroxyl groups; AO represents an oxyalkylene group having 2 to 18 carbon atoms; n and m each represent an integer of 0 to 2000 provided that both n and m do not represent 0; a and b each represent an integer satisfying the relationships: 2?a+b?8 and 1?b; R represents a hydrocarbon group having 1 to 30 carbon atoms; and X represents a divalent hydrocarbon group having 3 to 10 carbon atoms.Type: GrantFiled: July 30, 2002Date of Patent: April 5, 2005Assignee: NOF CorporationInventors: Kenji Sakanoue, Kazuhiro Kubo, Syunsuke Ohashi, Chika Itoh
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Publication number: 20050058620Abstract: A modified bio-related substance, wherein at least one poly(alkylene glycol)oxy group represented by the following formula (1) is combined in a molecule: wherein R is a hydrocarbon group having 1 to 24 carbon atoms, OA1 and OA2 are each an oxyalkylene group having 2 to 4 carbon atoms, R and OA2 are the same or different from each other in one molecule, n and m are each average number of moles of the oxyalkylene group added, n represents 0 to 1000, and m represents 10 to 1000.Type: ApplicationFiled: November 20, 2003Publication date: March 17, 2005Inventors: Ken-ichiro Nakamoto, Syunsuke Ohashi, Yuji Yamamoto, Kenji Sakanoue, Chika Itoh, Tohru Yasukohchi
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Publication number: 20030065134Abstract: A polyoxyalkylene derivative is represented by formula (I): 1Type: ApplicationFiled: July 30, 2002Publication date: April 3, 2003Applicant: NOF CORPORATIONInventors: Kenji Sakanoue, Kazuhiro Kubo, Syunsuke Ohashi, Chika Itoh