Patents by Inventor Keiko Suzuki

Keiko Suzuki 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).

  • Publication number: 20160153007
    Abstract: The present invention provides a method of increasing production of amorpha-4,11-diene and a method of increasing production of natural rubber. The present invention relates to a method of increasing production of amorpha-4,11-diene which includes the step of attaching an enzyme inhibitor to Arabidopsis thaliana into which has been introduced a gene encoding amorphadiene synthase. The enzyme inhibitor inhibits at least one enzyme other than amorphadiene synthase, that catalyzes an enzymatic reaction in which farnesyl diphosphate acts as a substrate. The present invention also relates to a method of increasing production of natural rubber which includes the step of attaching an enzyme inhibitor to a rubber-producing plant. The enzyme inhibitor inhibits at least one enzyme other than enzymes involved in natural rubber synthesis, that catalyzes an enzymatic reaction in which farnesyl diphosphate acts as a substrate.
    Type: Application
    Filed: November 16, 2015
    Publication date: June 2, 2016
    Applicants: SUMITOMO RUBBER INDUSTRIES, LTD., OSAKA UNIVERSITY
    Inventors: Haruhiko YAMAGUCHI, Yukino INOUE, Keiji TAKAGI, Kazuhisa FUSHIHARA, Toshiya MURANAKA, Keiko SUZUKI, Kanako KOBAYASHI
  • Publication number: 20150353685
    Abstract: A polyimide precursor including a structural unit represented by the following general formula (1) in a ratio of 50 mol % or more based on the total structural units. In the general formula (1), A is a tetravalent organic group represented by the following general formula (2a), a tetravalent organic group represented by the following general formula (2b), or a tetravalent organic group represented by the following general formula (2c), and B is a divalent organic group represented by the following general formula (3).
    Type: Application
    Filed: December 19, 2013
    Publication date: December 10, 2015
    Applicant: HITACHI CHEMICAL DUPONT MICROSYSTEMS, LTD.
    Inventors: Tetsuya Enomoto, Keishi Ono, Masayuki Ohe, Keiko Suzuki, Kazuya Soejima, Etsuharu Suzuki
  • Publication number: 20150337116
    Abstract: A resin composition including the following components (a) and (b). (a) A polyimide precursor having a structural unit represented by the following general formula (1); and (b) a compound represented by the following general formula (2): wherein in the formula R1 is a tetravalent organic group, R2 is a divalent organic group and R3 and R4 are independently a hydrogen atom, an alkyl group, a cycloalkyl group or a monovalent organic group having a carbon-carbon unsaturated double bond.
    Type: Application
    Filed: December 13, 2013
    Publication date: November 26, 2015
    Applicant: Hitachi Chemical DuPont MicroSystems, Ltd.
    Inventors: Keishi ONO, Tetsuya ENOMOTO, Masayuki OHE, Keiko SUZUKI, Kazuya SOEJIMA, Etsuharu SUZUKI
  • Patent number: 9150563
    Abstract: The present invention provides a compound having excellent regulating action on blood lipid level. The present invention provides a compound represented by the following general formula (I) or a pharmacologically acceptable salt thereof, etc., wherein A represents a 5-membered nitrogen-containing aromatic heterocyclyl group; R1 represents COOH or the like; each R2 represents an alkyl or the like; each R3 represents an optionally substituted phenyl, an optionally substituted phenylalkyl, or the like; m represents 0, 1, 2, or 3; n represents 0 or 1; each of R4, R5, R6, and R7 represents H, an alkyl, or the like; and B represents an optionally substituted naphthyl, an optionally substituted aromatic heterocyclyl, or a group represented by the following formula (II) wherein each of B1 and B2 represents an optionally substituted phenyl or an optionally substituted aromatic heterocyclyl.
    Type: Grant
    Filed: February 10, 2014
    Date of Patent: October 6, 2015
    Assignee: Daiichi Sankyo Company, Limited
    Inventors: Keiko Suzuki, Takahiro Yamaguchi, Akihiro Tamura, Tomohiro Nishizawa, Mitsuhiro Yamaguchi
  • Patent number: 8883142
    Abstract: A reagent measuring a glycated protein, comprising a protease and a protein of any one of [1] to [4] below: [1] a protein comprising the amino acid sequence represented by SEQ ID NO:1; [2] a protein comprising an amino acid sequence with one to ten amino acid deletions, substitutions, or additions in the amino acid sequence represented by SEQ ID NO:1, and having fructosyl peptide oxidase activity; [3] a protein comprising an amino acid sequence having 99% or higher homology to the amino acid sequence represented by SEQ ID NO:1, and having fructosyl peptide oxidase activity; and [4] a protein having fructosyl peptide oxidase activity, which is encoded by an expression plasmid harbored by the Escherichia coli XL1-Blue MRF? strain deposited under Accession No. FERM BP-11026.
    Type: Grant
    Filed: May 1, 2014
    Date of Patent: November 11, 2014
    Assignee: Kyowa Medex Co., Ltd.
    Inventors: Kazuo Aisaka, Keiko Suzuki
  • Publication number: 20140234886
    Abstract: A reagent measuring a glycated protein, comprising a protease and a protein of any one of [1] to [4] below: [1] a protein comprising the amino acid sequence represented by SEQ ID NO:1; [2] a protein comprising an amino acid sequence with one to ten amino acid deletions, substitutions, or additions in the amino acid sequence represented by SEQ ID NO:1, and having fructosyl peptide oxidase activity; [3] a protein comprising an amino acid sequence having 99% or higher homology to the amino acid sequence represented by SEQ ID NO:1, and having fructosyl peptide oxidase activity; and [4] a protein having fructosyl peptide oxidase activity, which is encoded by an expression plasmid harbored by the Escherichia coli XL1-Blue MRF? strain deposited under Accession No.
    Type: Application
    Filed: May 1, 2014
    Publication date: August 21, 2014
    Applicant: KYOWA MEDEX CO., LTD.
    Inventors: Kazuo AISAKA, Keiko Suzuki
  • Patent number: 8796411
    Abstract: The polyimide precursor composition of the present invention is characterized in comprising a polyimide precursor having a structure formed by reacting a diamine component (A) containing a fluorine-containing aromatic diamine (a1) represented by the following chemical formula (I) (in the formula (I), R1 and R2 are each independently selected from —H, —(CF2)n—CF3, and —O(CF2)n—CF3 (n is an integer of 0 or more and 7 or less), and at least one of R1 and R2 is a fluorine-containing group) and trans-1,4-cyclohexyldiamine (a2) with an acid dianhydride component (B) containing an aliphatic tetracarboxylic dianhydride (b1) and an aromatic tetracarboxylic dianhydride (b2). Use of the composition of the present invention provides a polyimide film and a transparent flexible film having high transparency, low thermal expansion properties, low birefringent properties, and high heat resistance.
    Type: Grant
    Filed: January 26, 2009
    Date of Patent: August 5, 2014
    Assignee: Hitachi Chemical DuPont Microsystems, Ltd.
    Inventors: Yuichi Kaneya, Yumiko Arakawa, Keiko Suzuki
  • Patent number: 8790905
    Abstract: The present invention encompasses: [1] a DNA encoding the protein of any one of (i) a protein comprising the sequence of SEQ ID NO:1; (ii) a protein comprising a sequence with one to ten amino acid deletions, substitutions, or additions in the sequence of SEQ ID NO:1, and having fructosyl peptide oxidase activity; (iii) a protein comprising a sequence having 99% or higher homology to the sequence of SEQ ID NO:1, and having fructosyl peptide oxidase activity; and (iv) a protein having fructosyl peptide oxidase activity, which is encoded by an expression plasmid harbored by the strain deposited under Accession No. FERM BP-11026; [2] a DNA comprising the of SEQ ID NO: 2; and [3] a DNA that hybridizes under stringent conditions with a DNA comprising a sequence complementary to SEQ ID NO: 2, where the DNA encodes a protein having fructosyl peptide oxidase activity.
    Type: Grant
    Filed: October 2, 2012
    Date of Patent: July 29, 2014
    Assignee: Kyowa Medex Co., Ltd.
    Inventors: Kazuo Aisaka, Keiko Suzuki
  • Publication number: 20140187592
    Abstract: The present invention provides a compound having excellent regulating action on blood lipid level. The present invention provides a compound represented by the following general formula (I) or a pharmacologically acceptable salt thereof, etc., wherein A represents a 5-membered nitrogen-containing aromatic heterocyclyl group; R1 represents COOH or the like; each R2 represents an alkyl or the like; each R3 represents an optionally substituted phenyl, an optionally substituted phenylalkyl, or the like; m represents 0, 1, 2, or 3; n represents 0 or 1; each of R4, R5, R6, and R7 represents H, an alkyl, or the like; and B represents an optionally substituted naphthyl, an optionally substituted aromatic heterocyclyl, or a group represented by the following formula (II) wherein each of B1 and B2 represents an optionally substituted phenyl or an optionally substituted aromatic heterocyclyl.
    Type: Application
    Filed: February 10, 2014
    Publication date: July 3, 2014
    Applicant: Daiichi Sankyo Company, Limited
    Inventors: Keiko Suzuki, Takahiro Yamaguchi, Akihiro Tamura, Tomohiro Nishizawa, Mitsuhiro Yamaguchi
  • Patent number: 8648103
    Abstract: The present invention provides a compound having excellent regulating action on blood lipid level that is represented by the following general formula (I) or a pharmacologically acceptable salt thereof, wherein, in one embodiment, A represents a 5-membered nitrogen-containing aromatic heterocyclyl group; R1 represents COOH; each R2 represents an alkyl; each R3 represents an optionally substituted phenyl, an optionally substituted phenylalkyl; m represents 0, 1, 2, or 3; n represents 0 or 1; each of R4, R5, R6, and R7 represents H, an alkyl; and B represents an optionally substituted naphthyl, an optionally substituted aromatic heterocyclyl, or a group represented by the following formula (II) wherein each of B1 and B2 represents an optionally substituted phenyl or an optionally substituted aromatic heterocyclyl.
    Type: Grant
    Filed: July 7, 2009
    Date of Patent: February 11, 2014
    Assignee: Daiichi Sankyo Company, Limited
    Inventors: Keiko Suzuki, Takahiro Yamaguchi, Akihiro Tamura, Tomohiro Nishizawa, Mitsuhiro Yamaguchi
  • Patent number: 8614051
    Abstract: A photosensitive resin composition for an interlayer insulating film or a protective film of a substrate for circuit formation, which includes a polymer (a) having a structural unit shown by the formula (A) and a compound (b) which generates a radical when irradiated with active rays and has a structure shown by the following formula (B).
    Type: Grant
    Filed: June 28, 2012
    Date of Patent: December 24, 2013
    Assignee: Hitachi Chemical Dupont Microsystems, Ltd.
    Inventors: Tomonori Minegishi, Rika Nogita, Dai Kawasaki, Keiko Suzuki, Taku Konno
  • Publication number: 20120328856
    Abstract: A photosensitive resin composition for an interlayer insulating film or a protective film of a substrate for circuit formation, which includes a polymer (a) having a structural unit shown by the formula (A) and a compound (b) which generates a radical when irradiated with active rays and has a structure shown by the following formula (B).
    Type: Application
    Filed: June 28, 2012
    Publication date: December 27, 2012
    Applicant: HITACHI CHEMICAL DUPONT MICROSYSTEMS, LTD.
    Inventors: Tomonori MINEGISHI, Rika NOGITA, Dai KAWASAKI, Keiko SUZUKI, Taku KONNO
  • Patent number: 8304160
    Abstract: A photosensitive resin composition for an interlayer insulating film or a protective film of a substrate for circuit formation, which includes a polymer (a) having a structural unit shown by the formula (A) and a compound (b) which generates a radical when irradiated with active rays and has a structure shown by the following formula (B).
    Type: Grant
    Filed: April 13, 2010
    Date of Patent: November 6, 2012
    Assignee: Hitachi Chemical Dupont Microsystems, Ltd.
    Inventors: Tomonori Minegishi, Rika Nogita, Dai Kawasaki, Keiko Suzuki, Taku Konno
  • Patent number: 8304249
    Abstract: The invention is directed to a protein comprising the amino acid sequence represented by SEQ ID NO: 1; a protein comprising an amino acid sequence with one to ten amino acid deletions, substitutions, or additions in the amino acid sequence represented by SEQ ID NO: 1, and having fructosyl peptide oxidase activity; a protein comprising an amino acid sequence having 99% or higher homology to the amino acid sequence represented by SEQ ID NO: 1, and having fructosyl peptide oxidase activity; and a protein having fructosyl peptide oxidase activity, which is encoded by an expression plasmid harbored by the Escherichia coli XL1-Blue MRF? strain deposited under Accession No. FERM BP-11026; as well as uses of such proteins.
    Type: Grant
    Filed: October 8, 2009
    Date of Patent: November 6, 2012
    Assignee: Kyowa Medex Co., Ltd.
    Inventors: Kazuo Aisaka, Toshiko Aisaka, legal representative, Keiko Suzuki
  • Publication number: 20120108639
    Abstract: The present invention provides a compound having excellent regulating action on blood lipid level that is represented by the following general formula (I) or a pharmacologically acceptable salt thereof, wherein, in one embodiment, A represents a 5-membered nitrogen-containing aromatic heterocyclyl group; R1 represents COOH; each R2 represents an alkyl; each R3 represents an optionally substituted phenyl, an optionally substituted phenylalkyl; m represents 0, 1, 2, or 3; n represents 0 or 1; each of R4, R5, R6, and R7 represents H, an alkyl; and B represents an optionally substituted naphthyl, an optionally substituted aromatic heterocyclyl, or a group represented by the following formula (II) wherein each of B1 and B2 represents an optionally substituted phenyl or an optionally substituted aromatic heterocyclyl.
    Type: Application
    Filed: July 7, 2009
    Publication date: May 3, 2012
    Applicant: DAIICHI SANKYO COMPANY, LIMITED
    Inventors: Keiko Suzuki, Takahiro Yamaguchi, Akihiro Tamura, Tomohiro Nishizawa, Mitsuhiro Yamaguchi
  • Publication number: 20120003678
    Abstract: A protein described in any one of [1] to [4] below is provided according to the present invention: [1] a protein comprising the amino acid sequence represented by SEQ ID NO: 1; [2] a protein comprising an amino acid sequence with one or more amino acid deletions, substitutions, or additions in the amino acid sequence represented by SEQ ID NO: 1, and having fructosyl peptide oxidase activity; [3] a protein comprising an amino acid sequence having 80% or higher homology to the amino acid sequence represented by SEQ ID NO: 1, and having fructosyl peptide oxidase activity; and [4] a protein having fructosyl peptide oxidase activity, which is produced by an expression plasmid harbored by the Escherichia coli XL1-Blue MRF' strain deposited under Accession No. FERM BP-11026.
    Type: Application
    Filed: December 10, 2009
    Publication date: January 5, 2012
    Applicant: Kyowa Medex Co., Ltd.
    Inventors: Kazuo Aisaka, Toshiko Aisaka, Keiko Suzuki
  • Publication number: 20110230447
    Abstract: Disclosed are: a compound which can be produced through a chemical synthesis at low cost, has an excellent osteogenesis-promoting activity, has high affinity for a bone, and can be applied without the need of any special DDS; and a method for promoting osteogenesis by administering the compound and applying the promotion of osteogenesis to the formation or regeneration of a bone. Specifically disclosed are: an osteogenesis promoter or a pharmaceutical composition comprising [4-(methylthio)phenylthio]methanebisphosphonic acid, which is one of bisphosphonic acids, or a pharmaceutically acceptable salt thereof as an active ingredient; and a method for promoting osteogenesis, which comprises administering the osteogenesis promoter or the pharmaceutical composition to a subject to be treated.
    Type: Application
    Filed: August 5, 2009
    Publication date: September 22, 2011
    Applicants: Tohoku University, Showa University
    Inventors: Hisashi Shinoda, Kaoru Igarashi, Shinobu Murakami, Keiko Suzuki
  • Publication number: 20110059305
    Abstract: The polyimide precursor composition of the present invention is characterized in comprising a polyimide precursor having a structure formed by reacting a diamine component (A) containing a fluorine-containing aromatic diamine (a1) represented by the following chemical formula (I) (in the formula (I), R1 and R2 are each independently selected from —H, —(CF2)n—CF3, and —O(CF2)n—CF3 (n is an integer of 0 or more and 7 or less), and at least one of R1 and R2 is a fluorine-containing group) and trans-1,4-cyclohexyldiamine (a2) with an acid dianhydride component (B) containing an aliphatic tetracarboxylic dianhydride (b1) and an aromatic tetracarboxylic dianhydride (b2). Use of the composition of the present invention provides a polyimide film and a transparent flexible film having high transparency, low thermal expansion properties, low birefringent properties, and high heat resistance.
    Type: Application
    Filed: January 26, 2009
    Publication date: March 10, 2011
    Applicant: Hitachi Chemical Dupont Microsystems, Ltd.
    Inventors: Yuichi Kaneya, Yumiko Arakawa, Keiko Suzuki
  • Publication number: 20100260983
    Abstract: A photosensitive resin composition for an interlayer insulating film or a protective film of a substrate for circuit formation, which includes a polymer (a) having a structural unit shown by the formula (A) and a compound (b) which generates a radical when irradiated with active rays and has a structure shown by the following formula (B).
    Type: Application
    Filed: April 13, 2010
    Publication date: October 14, 2010
    Applicant: HITACHI CHEMICAL DUPONT MICROSYSTEMS, LTD.
    Inventors: Tomonori MINEGISHI, Rika NOGITA, Dai KAWASAKI, Keiko SUZUKI, Taku KONNO
  • Publication number: 20090149444
    Abstract: A compound of the formula (I): wherein R1 represents a C1-C6 alkyl, (C1-C6 alkyl)amino, di(C1-C6 alkyl)amino or a nitrogen-containing saturated heterocyclic; R2 and R3 are the same or different and represent hydrogen or a C1-C6 alkyl; Ra represents hydrogen, C1-C6 alkyl or C2-C6 alkenyl or together with R2 represents a C1-C3 alkylene; Arom represents a heteroaryl; A represents a C1-C6 alkylene; E represents a single bond, oxygen, sulphur or R4NR4—, wherein R4 is hydrogen or C1-C7 alkenoyl; X1 and X2 both represent oxygen; X2 is attached at the 3-position or the 4-position; or a pharmacologically acceptable salt or ester thereof. The compound has superior acetylcholinesterase inhibitory action and selective serotonin reuptake inhibitory action, and is useful for treating Alzheimer's disease, depression, Huntington's chorea, Pick's disease, tardive dyskinesia, compulsive disorders or panic disorders.
    Type: Application
    Filed: January 29, 2009
    Publication date: June 11, 2009
    Applicant: BTG INTERNATIONAL LIMITED
    Inventors: Kazuo Koyama, Shinji Marumoto, Narihiro Toda, Hiroshi Kogen, Keiko Suzuki