Patents by Inventor Masashi Nakakura
Masashi Nakakura 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: 10172790Abstract: The present invention provides a method of suppressing the formation of a soluble association of an antibody in a solution; a method of suppressing the formation of a chemically degraded product of an antibody in a solution; and a method of stabilizing an antibody in a solution. The present invention also provides a solution-type antibody preparation in which the formation of a soluble association is suppressed; a solution-type antibody preparation in which the formation of a chemically degraded product is suppressed; a solution-type antibody preparation in which the formation of a soluble association, the formation of a chemically degraded product and the formation of an insoluble aggregate are suppressed; an agent for suppressing the formation of a soluble association of an antibody; an agent for suppressing the formation of a chemically degraded product of an antibody; and a stabilizing agent for an antibody.Type: GrantFiled: March 18, 2015Date of Patent: January 8, 2019Assignee: KYOWA HAKKO KIRIN CO., LTDInventors: Yuji Ueno, Takashi Kayashita, Atsushi Ishihara, Masashi Nakakura, Kyoko Yamauchi
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Patent number: 9937127Abstract: An object of the present invention is to provide a method of easily producing fine particles comprising a lipid, a fatty acid, or a derivative thereof, surface-modified with a water-soluble substance, etc. There are provided a method of producing a fine particles, surface-modified with a water-soluble substance, which contains the process of dispersing fine particles comprising a lipid, a fatty acid, or a derivative thereof, and dissolving or dispersing a surface modifier which is a lipid derivative, a fatty acid derivative, or an aliphatic hydrocarbon derivative of a water-soluble substance, in a liquid containing a polar organic solvent, and the like.Type: GrantFiled: January 27, 2006Date of Patent: April 10, 2018Assignee: KYOWA HAKKO KIRIN CO., LTD.Inventors: Nobuhiro Yagi, Hiroko Sugishita, Masashi Nakakura, Hiroko Kusano
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Publication number: 20150190507Abstract: The present invention provides a method of suppressing the formation of a soluble association of an antibody in a solution; a method of suppressing the formation of a chemically degraded product of an antibody in a solution; and a method of stabilizing an antibody in a solution. The present invention also provides a solution-type antibody preparation in which the formation of a soluble association is suppressed; a solution-type antibody preparation in which the formation of a chemically degraded product is suppressed; a solution-type antibody preparation in which the formation of a soluble association, the formation of a chemically degraded product and the formation of an insoluble aggregate are suppressed; an agent for suppressing the formation of a soluble association of an antibody; an agent for suppressing the formation of a chemically degraded product of an antibody; and a stabilizing agent for an antibody.Type: ApplicationFiled: March 18, 2015Publication date: July 9, 2015Applicant: KYOWA HAKKO KIRIN CO., LTDInventors: Yuji UENO, Takashi KAYASHITA, Atsushi ISHIHARA, Masashi NAKAKURA, Kyoko YAMAUCHI
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Patent number: 9011850Abstract: The present invention provides a method of suppressing the formation of a soluble association of an antibody in a solution; a method of suppressing the formation of a chemically degraded product of an antibody in a solution; and a method of stabilizing an antibody in a solution. The present invention also provides a solution-type antibody preparation in which the formation of a soluble association is suppressed; a solution-type antibody preparation in which the formation of a chemically degraded product is suppressed; a solution-type antibody preparation in which the formation of a soluble association, the formation of a chemically degraded product and the formation of an insoluble aggregate are suppressed; an agent for suppressing the formation of a soluble association of an antibody; an agent for suppressing the formation of a chemically degraded product of an antibody; and a stabilizing agent for an antibody.Type: GrantFiled: June 14, 2013Date of Patent: April 21, 2015Assignee: Kyowa Hakko Kirin Co., LtdInventors: Yuji Ueno, Takashi Kayashita, Atsushi Ishihara, Masashi Nakakura, Kyoko Yamauchi
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Publication number: 20130280248Abstract: The present invention provides a method of suppressing the formation of a soluble association of an antibody in a solution; a method of suppressing the formation of a chemically degraded product of an antibody in a solution; and a method of stabilizing an antibody in a solution. The present invention also provides a solution-type antibody preparation in which the formation of a soluble association is suppressed; a solution-type antibody preparation in which the formation of a chemically degraded product is suppressed; a solution-type antibody preparation in which the formation of a soluble association, the formation of a chemically degraded product and the formation of an insoluble aggregate are suppressed; an agent for suppressing the formation of a soluble association of an antibody; an agent for suppressing the formation of a chemically degraded product of an antibody; and a stabilizing agent for an antibody.Type: ApplicationFiled: June 14, 2013Publication date: October 24, 2013Inventors: Yuji UENO, Takashi KAYASHITA, Atsushi ISHIHARA, Masashi NAKAKURA, Kyoko YAMAUCHI
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Patent number: 8496930Abstract: The present invention provides a method of suppressing the formation of a soluble association of an antibody in a solution; a method of suppressing the formation of a chemically degraded product of an antibody in a solution; and a method of stabilizing an antibody in a solution. The present invention also provides a solution-type antibody preparation in which the formation of a soluble association is suppressed; a solution-type antibody preparation in which the formation of a chemically degraded product is suppressed; a solution-type antibody preparation in which the formation of a soluble association, the formation of a chemically degraded product and the formation of an insoluble aggregate are suppressed; an agent for suppressing the formation of a soluble association of an antibody; an agent for suppressing the formation of a chemically degraded product of an antibody; and a stabilizing agent for an antibody.Type: GrantFiled: October 1, 2004Date of Patent: July 30, 2013Assignee: Kyowa Hakko Kirin Co., LtdInventors: Yuji Ueno, Takashi Kayashita, Atsushi Ishihara, Masashi Nakakura, Kyoko Yamauchi
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Publication number: 20120301539Abstract: An object of the present invention is to provide a method for easily producing coated fine particles in which core fine particles are coated with a coating layer component, etc. There are provided a method of producing coated fine particles comprising core fine particles coated with a coating layer component, comprising the steps of dispersing the core fine particles and the coating layer component(s) in a liquid and the process of coating the core fine particles with the coating layer component, wherein the liquid contains a polar organic solvent in which the coating layer component(s) is soluble, and the concentration of the polar organic solvent is such that the core fine particles is not dissolved and the coating layer component (s) can be in the dispersed state in the liquid, and the like.Type: ApplicationFiled: August 2, 2012Publication date: November 29, 2012Inventors: Nobuhiro Yagi, Takuya Tokuda, Masashi Nakakura, Yasuki Kato
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Publication number: 20100227917Abstract: The present invention provides an eye drop comprising: a dibenz[b,e]oxepine derivative or a salt thereof and a polyvalent weak acid, an acidic amino acid or an amide thereof, a basic amino acid or an amide thereof, or the salt thereof, and the like, for the purpose of providing an eye drop or a preparation for topical administration which enables the concentration of a dibenz[b,e]oxepin derivative or a salt thereof to be high; or an eye drop or a preparation for topical administration comprising the dibenz[b,e]oxepine derivative or the salt thereof and having an effective composition for treating allergic disturbance or inflammatory disorder of an eye or for treating allergic disturbance or inflammatory disorder of a nose.Type: ApplicationFiled: September 8, 2008Publication date: September 9, 2010Inventors: Masashi Nakakura, Eikichi Ono, Kouji Murai, Tadafumi Tamura
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Publication number: 20080171090Abstract: An object of the present invention is to provide a method for easily producing coated fine particles in which core fine particles are coated with a coating layer component, etc. There are provided a method of producing coated fine particles comprising core fine particles coated with a coating layer component, comprising the steps of dispersing the core fine particles and the coating layer component(s) in a liquid and the process of coating the core fine particles with the coating layer component, wherein the liquid contains a polar organic solvent in which the coating layer component(s) is soluble, and the concentration of the polar organic solvent is such that the core fine particles is not dissolved and the coating layer component(s) can be in the dispersed state in the liquid, and the like.Type: ApplicationFiled: January 27, 2006Publication date: July 17, 2008Inventors: Nobuhiro Yagi, Takuya Tokuda, Masashi Nakakura, Yasuki Kato
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Publication number: 20080145414Abstract: An object of the present invention is to provide a method of easily producing fine particles comprising a lipid, a fatty acid, or a derivative thereof, surface-modified with a water-soluble substance, etc. There are provided a method of producing a fine particles, surface-modified with a water-soluble substance, which contains the process of dispersing fine particles comprising a lipid, a fatty acid, or a derivative thereof, and dissolving or dispersing a surface modifier which is a lipid derivative, a fatty acid derivative, or an aliphatic hydrocarbon derivative of a water-soluble substance, in a liquid containing a polar organic solvent, and the like.Type: ApplicationFiled: January 27, 2006Publication date: June 19, 2008Inventors: Nobuhiro Yagi, Hiroko Sugishita, Masashi Nakakura, Hiroko Kusano
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Publication number: 20070020255Abstract: The present invention provides a method of suppressing the formation of a soluble association of an antibody in a solution; a method of suppressing the formation of a chemically degraded product of an antibody in a solution; and a method of stabilizing an antibody in a solution. The present invention also provides a solution-type antibody preparation in which the formation of a soluble association is suppressed; a solution-type antibody preparation in which the formation of a chemically degraded product is suppressed; a solution-type antibody preparation in which the formation of a soluble association, the formation of a chemically degraded product and the formation of an insoluble aggregate are suppressed; an agent for suppressing the formation of a soluble association of an antibody; an agent for suppressing the formation of a chemically degraded product of an antibody; and a stabilizing agent for an antibody.Type: ApplicationFiled: October 1, 2004Publication date: January 25, 2007Applicant: Kyowa Hakko Kogyo Co., Ltd.Inventors: Yuji Ueno, Takashi Kayashita, Atsushi Ishihara, Masashi Nakakura, Kyoko Yamauchi
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Patent number: 5977109Abstract: A storage stable dessicated composition is formed of a DX-52-1 derivative according to Formula (I) ##STR1## and at least one saccharide. The composition may be formed by lyophilizing a composition which preferably has a pH of 7-12.Type: GrantFiled: October 16, 1996Date of Patent: November 2, 1999Assignee: Kyowa Hakko Kogyo Co., Ltd.Inventors: Masashi Nakakura, Eiji Hayakawa, Tokuyuki Kuroda
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Patent number: 5703080Abstract: Stabilized duocarmycin derivatives represented by formula (I): ##STR1## wherein R is lower alkyl, allyl or benzyl, and X is Cl or Br, are prepared by adding at least a compound selected from the group consisting of a saccharide, an electrolyte, a water-soluble polymer, a polyhydric alcohol and a surfactant to a solution containing the duocarmycin derivatives. Also provided are freeze-dried pharmaceutical preparations containing the stabilized duocarmycin derivatives.Type: GrantFiled: October 30, 1996Date of Patent: December 30, 1997Assignee: Kyowa Hakko Kogyo Co., Ltd.Inventors: Masashi Nakakura, Yuji Ueno, Eiji Hayakawa, Tokuyuki Kuroda
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Patent number: 5641805Abstract: Topical ophthalmic formulations of the invention contain as an active ingredient 11-(3-dimethylaminopropylidene)-6,11-dihydrodibenz[b,e]oxepin-2-acetic acid or a pharmaceutically acceptable salt thereof. The formulations are useful for treating allergic eye diseases such as allergic conjunctivitis, vernal conjunctivitis, vernal keratoconjunctivitis, and giant papillary conjunctivitis.Type: GrantFiled: June 6, 1995Date of Patent: June 24, 1997Assignees: Alcon Laboratories, Inc., Kyowa Hakko Kogyo Co. Ltd.Inventors: Eiji Hayakawa, Masashi Nakakura, Stella M. Robertson, John Michael Yanni