Patents by Inventor Yasuto Umeda
Yasuto Umeda 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).
-
Patent number: 10960380Abstract: An adsorbent, which can be produced by a method in which a particle size, a pore size, a specific surface area or the like can be easily controlled, and is suitable for isolation of biomolecules. The adsorbent contains aggregates of calcium phosphate-based particles, and has an average pore size of 15 to 36 nanometers and a specific surface area of 40 to 90 m2/mL when measurement is carried out by mercury porosimetry.Type: GrantFiled: December 20, 2016Date of Patent: March 30, 2021Assignees: JNC CORPORATION, SofSera CorporationInventors: Yoshihiro Matsumoto, Akihiro Uchida, Yasuto Umeda
-
Patent number: 10010863Abstract: A method for preparing a chromatography medium having the properties of high virus adsorption and high fluidity, and a method for producing a virus vaccine using the chromatography medium are provided. The chromatography medium is obtained by forming a sulfated polysaccharide bound with porous particles having an exclusion limit molecular weight of 6000 Da or less when pure water is used as mobile phase and standard polyethylene glycol is used and an average particle size in the range of 30-200 ?m.Type: GrantFiled: January 20, 2016Date of Patent: July 3, 2018Assignee: JNC CORPORATIONInventors: Yuka Yamamoto, Yuichi Yamamoto, Yasuto Umeda, Shigeyuki Aoyama, Yoshihiro Matsumoto
-
Publication number: 20170182478Abstract: An adsorbent, which can be produced by a method in which a particle size, a pore size, a specific surface area or the like can be easily controlled, and is suitable for isolation of biomolecules. The adsorbent contains aggregates of calcium phosphate-based particles, and has an average pore size of 15 to 36 nanometers and a specific surface area of 40 to 90 m2/mL when measurement is carried out by mercury porosimetry.Type: ApplicationFiled: December 20, 2016Publication date: June 29, 2017Applicants: JNC CORPORATION, SofSera CorporationInventors: Yoshihiro MATSUMOTO, Akihiro UCHIDA, Yasuto UMEDA
-
Patent number: 9446382Abstract: The present invention provides a porous cellulose gel having a high mechanical strength capable of being operated at a higher flow rate, and a method for producing the same. To a suspension liquid of cellulose particles, a crosslinking agent in an amount of from 4 to 12 times the amount of the cellulose monomer in terms of moles and an alkali in an amount of from 0.1 to 1.5 times the amount of the crosslinking agent in terms of moles are added continuously dropwise or added dividedly over a prescribed period of time, whereby flow rate characteristics of a resulting porous cellulose gel can be enhanced. According to the invention, the production efficiency of a polymer substance, such as a nucleic acid and a protein can be enhanced.Type: GrantFiled: January 14, 2014Date of Patent: September 20, 2016Assignee: JNC CORPORATIONInventors: Yasuto Umeda, Yasuo Matsumoto, Masami Shiina, Masami Todokoro, Yoshihiro Matsumoto
-
Publication number: 20160129420Abstract: A method for preparing a chromatography medium having the properties of high virus adsorption and high fluidity, and a method for producing a virus vaccine using the chromatography medium are provided. The chromatography medium is obtained by forming a sulfated polysaccharide bound with porous particles having an exclusion limit molecular weight of 6000 Da or less when pure water is used as mobile phase and standard polyethylene glycol is used and an average particle size in the range of 30-200 ?m.Type: ApplicationFiled: January 20, 2016Publication date: May 12, 2016Applicant: JNC CORPORATIONInventors: YUKA YAMAMOTO, YUICHI YAMAMOTO, YASUTO UMEDA, SHIGEYUKI AOYAMA, YOSHIHIRO MATSUMOTO
-
Patent number: 9283542Abstract: A Chromatography medium having the properties of high virus adsorption and high fluidity, and a method for producing a virus vaccine using these are provided. The Chromatography medium is formed by binding a sulfated polysaccharide to porous particles having an exclusion limit molecular weight of 6000 Da or less when pure water is used as mobile phase and standard polyethylene glycol is used and an average particle size in the range of 30-200 ?m.Type: GrantFiled: June 24, 2010Date of Patent: March 15, 2016Assignee: JNC CORPORATIONInventors: Yuka Yamamoto, Yuichi Yamamoto, Yasuto Umeda, Shigeyuki Aoyama, Yoshihiro Matsumoto
-
Publication number: 20150344520Abstract: A chromatography media having excellent salt tolerance, adsorption characteristics and so forth is provided. The chromatography media contains a base media involving porous particles and polyamine bonded with the base media, in which 20 to 40% of amino groups in the polyamine is modified with a hydrophobic group.Type: ApplicationFiled: May 26, 2015Publication date: December 3, 2015Inventors: Yoshihiro MATSUMOTO, Yasuto UMEDA, Shigeyuki AOYAMA
-
Patent number: 8981059Abstract: A platelet aggregation inducing substance containing as an active ingredient a polypeptide having a peptide fragment represented by formula (1) (component A): -(Pro-X-Gly)n-??(1) wherein X represents Pro or Hyp; and n represents an integer of from 20 to 5,000.Type: GrantFiled: February 14, 2014Date of Patent: March 17, 2015Assignee: JNC CorporationInventors: Yasuto Umeda, Shinichi Takasaki, Takafumi Takebayashi, Takahiro Kawai
-
Patent number: 8912117Abstract: The present invention provides a chromatography packing material having improved flow rate characteristics and adsorption characteristics. In particular, the present invention provides a chromatography packing material suitable for separation and purification of immunoglobulin in the manufacture of antibody preparations. A porous cellulose gel, which is made by adding polysaccharides having a limiting viscosity of 0.21 to 0.90 dL/g to porous cellulose particles, the dry weight per unit volume of the porous cellulose gel being 1.06 to 1.40 times the dry weight per unit volume of the porous cellulose particles, is used. By adding a predetermined amount of polysaccharides having a predetermined limiting viscosity to porous cellulose particles, flow rate characteristics and adsorption characteristics can be improved.Type: GrantFiled: February 18, 2010Date of Patent: December 16, 2014Assignee: JNC CorporationInventors: Yoshihiro Matsumoto, Yasuto Umeda, Shigeyuki Aoyama, Masami Todokoro
-
Publication number: 20140287233Abstract: A platelet aggregation inducing substance containing as an active ingredient a polypeptide having a peptide fragment represented by formula (1) (component A): -(Pro-X-Gly)n-??(1) wherein X represents Pro or Hyp; and n represents an integer of from 20 to 5,000.Type: ApplicationFiled: February 14, 2014Publication date: September 25, 2014Applicant: JNC CorporationInventors: YASUTO UMEDA, SHINICHI TAKASAKI, TAKAFUMI TAKEBAYASHI, TAKAHIRO KAWAI
-
Publication number: 20140128253Abstract: The present invention provides a porous cellulose gel having a high mechanical strength capable of being operated at a higher flow rate, and a method for producing the same. To a suspension liquid of cellulose particles, a crosslinking agent in an amount of from 4 to 12 times the amount of the cellulose monomer in terms of moles and an alkali in an amount of from 0.1 to 1.5 times the amount of the crosslinking agent in terms of moles are added continuously dropwise or added dividedly over a prescribed period of time, whereby flow rate characteristics of a resulting porous cellulose gel can be enhanced. According to the invention, the production efficiency of a polymer substance, such as a nucleic acid and a protein can be enhanced.Type: ApplicationFiled: January 14, 2014Publication date: May 8, 2014Applicant: JNC CORPORATIONInventors: Yasuto UMEDA, Yasuo MATSUMOTO, Masami SHIINA, Masami TODOKORO, Yoshihiro MATSUMOTO
-
Patent number: 8686117Abstract: A platelet aggregation inducing substance containing as an active ingredient a polypeptide having a peptide fragment represented by formula (1) (component A): -(Pro-X-Gly)n-??(1) wherein X represents Pro or Hyp; and n represents an integer of from 20 to 5,000.Type: GrantFiled: December 12, 2007Date of Patent: April 1, 2014Assignee: JNC CorporationInventors: Yasuto Umeda, Shinichi Takasaki, Takafumi Takebayashi, Takahiro Kawai
-
Patent number: 8664152Abstract: The present invention provides a porous cellulose gel having a high mechanical strength capable of being operated at a higher flow rate, and a method for producing the same. To a suspension liquid of cellulose particles, a crosslinking agent in an amount of from 4 to 12 times the amount of the cellulose monomer in terms of moles and an alkali in an amount of from 0.1 to 1.5 times the amount of the crosslinking agent in terms of moles are added continuously dropwise or added dividedly over a prescribed period of time, whereby flow rate characteristics of a resulting porous cellulose gel can be enhanced. According to the invention, the production efficiency of a polymer substance, such as a nucleic acid and a protein can be enhanced.Type: GrantFiled: August 27, 2008Date of Patent: March 4, 2014Assignee: JNC CorporationInventors: Yasuto Umeda, Yasuo Matsumoto, Masami Shiina, Masami Todokoro, Yoshihiro Matsumoto
-
Publication number: 20110301330Abstract: The present invention provides a chromatography packing material having improved flow rate characteristics and adsorption characteristics. In particular, the present invention provides a chromatography packing material suitable for separation and purification of immunoglobulin in the manufacture of antibody preparations. A porous cellulose gel, which is made by adding polysaccharides having a limiting viscosity of 0.21 to 0.90 dL/g to porous cellulose particles, the dry weight per unit volume of the porous cellulose gel being 1.06 to 1.40 times the dry weight per unit volume of the porous cellulose particles, is used. By adding a predetermined amount of polysaccharides having a predetermined limiting viscosity to porous cellulose particles, flow rate characteristics and adsorption characteristics can be improved.Type: ApplicationFiled: February 18, 2010Publication date: December 8, 2011Applicant: JNC CorporationInventors: Yoshihiro Matsumoto, Yasuto Umeda, Shigeyuki Aoyama, Masami Todokoro
-
Publication number: 20100330119Abstract: A Chromatography medium having the properties of high virus adsorption and high fluidity, and a method for producing a virus vaccine using these are provided. The Chromatography medium is formed by binding a sulfated polysaccharide to porous particles having an exclusion limit molecular weight of 6000 Da or less when pure water is used as mobile phase and standard polyethylene glycol is used and an average particle size in the range of 30-200 ?m.Type: ApplicationFiled: June 24, 2010Publication date: December 30, 2010Applicant: CHISSO CORPORATIONInventors: YUKA YAMAMOTO, YUICHI YAMAMOTO, YASUTO UMEDA, SHIGEYUKI AOYAMA, YOSHIHIRO MATSUMOTO
-
Publication number: 20100022755Abstract: A platelet aggregation inducing substance containing as an active ingredient a polypeptide having a peptide fragment represented by formula (1) (component A): -(Pro-X-Gly)n- ??(1) wherein X represents Pro or Hyp; and n represents an integer of from 20 to 5,000.Type: ApplicationFiled: December 12, 2007Publication date: January 28, 2010Applicant: CHISSO CORPORATIONInventors: Yasuto Umeda, Shinichi Takasaki, Takafumi Takebayashi, Takahiro Kawai