The Additional Hetero Ring Contains Ring Nitrogen Patents (Class 514/210.12)
  • Patent number: 9221823
    Abstract: Novel crystals of a pyrrolidylthiocarbapenem derivative having excellent stability is provided. According to the present invention, a crystal of (+)-(4R,5S,6S)-6-[(1R)-1-hydroxyethyl]-4-methyl-7-oxo-3[[(3S,5S)-5-(sulfamoylaminomethyl)pyrrolidin-3-yl]thio]-1-azabicyclo[3.2.0]hept-2-ene-2-carboxylic acid having a diffraction pattern in powder X-ray diffraction having main peaks at diffraction angles (2?) of about 6.62, 13.04, 15.44, 16.58, 17.64, 20.88, 23.26, 25.02 and 25.52 (degrees) are provided.
    Type: Grant
    Filed: February 21, 2014
    Date of Patent: December 29, 2015
    Assignee: SHIONOGI & CO., LTD.
    Inventors: Izumi Saitoh, Masayuki Takahira, Toshio Kawakita, Yasuyuki Yoshioka
  • Patent number: 9012628
    Abstract: Provided is a crystalline form E of ertapenem sodium. Further provided is a method for preparing a crystalline form E of ertapenem sodium, characterized by using an aqueous ertapenem sodium solution at a low concentration as a raw material. The crystalline form E can be easily filtered and dried, the properties in the drying process are stable, and the purity of the crystal is high and can be up to 98.5% or higher.
    Type: Grant
    Filed: December 22, 2011
    Date of Patent: April 21, 2015
    Assignee: CSPC Zhongqi Pharmaceutical Technology (Shijiazhuang) Co. Ltd.
    Inventors: Ying Shi, Kun Li, Xuebin Zhao, Zan Xie, Yuxiu Ma, Jian Lv, Ming Jia
  • Publication number: 20150031664
    Abstract: Novel crystals of a pyrrolidylthiocarbapenem derivative having excellent stability is provided. According to the present invention, a crystal of (+)-(4R,5S,6S)-6-[(1R)-1-hydroxyethyl]-4-methyl-7-oxo-3[[(3S,5S)-5-(sulfamoylaminomethyl)pyrrolidin-3-yl]thio]-1-azabicyclo[3.2.0]hept-2-ene-2-carboxylic acid having a diffraction pattern in powder X-ray diffraction having main peaks at diffraction angles (2?) of about 6.62, 13.04, 15.44, 16.58, 17.64, 20.88, 23.26, 25.02 and 25.52 (degrees) are provided.
    Type: Application
    Filed: February 21, 2014
    Publication date: January 29, 2015
    Applicant: SHIONOGI & CO., LTD.
    Inventors: Izumi Saitoh, Masayuki Takahira, Toshio Kawakita, Yasuyuki Yoshioka
  • Publication number: 20130274238
    Abstract: Use of a monobactam antibiotic of formula (I) wherein the oxyimino group i.e. >C?N—O— has Z-orientation, or a pharmaceutically acceptable salt thereof for the manufacture of a medicament for the treatment of a bacterial infection in combination with a carbapenem antibiotic or a pharmaceutically acceptable salt thereof.
    Type: Application
    Filed: June 12, 2013
    Publication date: October 17, 2013
    Inventors: Eric Desarbre, Malcolm G.P. Page
  • Patent number: 8415339
    Abstract: Pharmaceutical compositions containing a carbapenem of the structural formula I and epicillin are strongly bactericidal against MRSA and MRSE. Equivalently, compositions of conventional carbapenem antibiotics and epicillin are highly synergistic in eradicating said bacteria.
    Type: Grant
    Filed: May 14, 2008
    Date of Patent: April 9, 2013
    Inventor: Hans Rudolf Pfaendler
  • Publication number: 20130065878
    Abstract: Provided herein are cell-free systems for generating carbapenems, e.g., a compound of the Formula (I): or salts thereof; wherein , R1, R2, R3, R4, R5, and R6 are defined herein. Also provided are pharmaceutical compositions comprising a compound generated by the inventive cell-free system, and use of these compounds and compositions for the treatment of bacterial infections.
    Type: Application
    Filed: September 7, 2012
    Publication date: March 14, 2013
    Inventors: William Jeremy Blake, Daniel Klein-Marcuschamer
  • Publication number: 20130059831
    Abstract: Novel crystals of a pyrrolidylthiocarbapenem derivative having excellent stability is provided. According to the present invention, a crystal of (+)-(4R,5S,6S)-6-[(1R)-1-hydroxyethyl]-4-methyl-7-oxo-3[[(3S,5S)-5-(sulfamoylaminomethyl)pyrrolidin-3-yl]thio]-1-azabicyclo[3.2.0]hept-2-ene-2-carboxylic acid having a diffraction pattern in powder X-ray diffraction having main peaks at diffraction angles (2?) of about 6.62, 13.04, 15.44, 16.58, 17.64, 20.88, 23.26, 25.02 and 25.52 (degrees) are provided.
    Type: Application
    Filed: August 14, 2012
    Publication date: March 7, 2013
    Applicant: SHIONOGI & CO., LTD.
    Inventors: Izumi Saitoh, Masayuki Takahira, Toshio Kawakita, Yasuyuki Yoshioka
  • Patent number: 8258127
    Abstract: A method for treating individuals affected with latent tuberculosis comprising a step of administering an effective amount of one or more carbapenem compounds to the said individuals.
    Type: Grant
    Filed: July 28, 2008
    Date of Patent: September 4, 2012
    Assignee: Institut National de la Sante et de la Recherche Medicale (INSERM)
    Inventors: Jean-Luc Mainardi, Michel Arthur, Laurent Gutmann, Marie Lavollay
  • Patent number: 8247402
    Abstract: Novel crystals of a pyrrolidylthiocarbapenem derivative having excellent stability is provided. According to the present invention, a crystal of (+)-(4R,5S,6S)-6-[(1R)-1-hydroxyethyl]-4-methyl-7-oxo-3[[(3S,5S)-5-(sulfamoylaminomethyl)p yrrolidin-3-yl]thio]-1-azabicyclo[3.2.0]hept-2-ene-2-carboxylic acid having a diffraction pattern in powder X-ray diffraction having main peaks at diffraction angles (2?) of about 13.04, 14.98, 15.88, 16.62, 20.62, 21.06, 22.18, 23.90, 26.08, 28.22 and 28.98 (degrees) and a crystal of said compound having a diffraction pattern in powder X-ray diffraction having main peaks at diffraction angles (2?) of about 6.62, 13.04, 15.44, 16.58, 17.64, 20.88, 23.26, 25.02 and 25.52 (degrees) are provided.
    Type: Grant
    Filed: February 5, 2008
    Date of Patent: August 21, 2012
    Assignee: Shiongi & Co., Ltd.
    Inventors: Izumi Saitoh, Masayuki Takahira, Toshio Kawakita, Yasuyuki Yoshioka
  • Publication number: 20120071457
    Abstract: A new metallo-?-lactamase inhibitor which acts as a medicament for inhibiting the inactivation of ?-lactam antibiotics and recovering anti-bacterial activities is disclosed. The maleic acid derivatives having the general formula (I) have metallo-?-lactamase inhibiting activities. It is possible to recover the anti-bacterial activities of ?-lactam antibiotics against metallo-?-lactamase producing bacteria by combining the compound of the general formula (I) with ?-lactam antibiotics.
    Type: Application
    Filed: November 29, 2011
    Publication date: March 22, 2012
    Inventors: Ken Chikauchi, Mizuyo Ida, Takao Abe, Yukiko Hiraiwa, Akihiro Morinaka, Toshiaki Kudo
  • Publication number: 20110281839
    Abstract: The present invention is directed to co-therapy and methods for the treatment of bacterial infections due to A. baumannii, such as pneumonia, blood stream infections, wound infections, urinary tract infection and intra-abdominal infections.
    Type: Application
    Filed: May 6, 2011
    Publication date: November 17, 2011
    Inventor: Janet PETERSON
  • Publication number: 20110118229
    Abstract: The present invention provides a 2-arylmethylazetidine-carbapenem-3-carboxylic acid ester derivative or its pharmaceutically acceptable salt, a process for the preparation thereof, and a pharmaceutical composition comprising the same. The 2-arylmethylazetidine-carbapenem-3-carboxylic acid ester derivatives or their pharmaceutically acceptable salts show high oral absorption rate, and thus can be orally administered. The active metabolites thereof have a broad spectrum of antibacterial activities against Gram-positive and Gram-negative bacteria and excellent antibacterial activities against methicillin-resistant Staphylococcus aurus (MRSA) and quinolone-resistant strains (QRS). In particular, the acid addition salts of the 2-arylmethylazetidine-carbapenem-3-carboxylic acid ester derivatives are obtained in crystalline forms having excellent stability.
    Type: Application
    Filed: November 18, 2008
    Publication date: May 19, 2011
    Applicants: KUKJE PHARM. IND. CO., LTD., KOREA RESEARCH INSTITUTE OF CHEMICAL TECHNOLOGY
    Inventors: Young-Ro Choi, Bong-Jin Kim, Bok-Ju Song, Bum-Soo Lee, Dong-Woo Lee, Dong-Geun Seo, Young-Cheol Jeong, Si-Min Kim, Jee-Woong Kwon, Jae-Yang Kong, Heeyeong Cho
  • Patent number: 7915246
    Abstract: The present invention provides a method of treating fibromyalgia syndrome (FMS), chronic fatigue syndrome (CFS), and pain in an animal subject. The method generally involves administering a therapeutically effective amount of a dual serotonin norepinephrine reuptake inhibitor compound or a pharmaceutically acceptable salt thereof, wherein said dual serotonin norepinephrine reuptake inhibitor compound is characterized by a non-tricyclic structure and an equal or greater inhibition of norepinephrine reuptake than serotonin reuptake. In particular, the use of milnacipran to treat FMS, CFS, and pain is disclosed.
    Type: Grant
    Filed: February 22, 2008
    Date of Patent: March 29, 2011
    Assignee: Cypress Bioscience, Inc.
    Inventors: Jay D. Kranzler, Srinivas G. Rao
  • Publication number: 20110046107
    Abstract: The present invention relates to a compound of the formula (I), pharmaceutically acceptable salts, hydrolysable esters, isomers and hydrates thereof, and hydrates of the said esters or salts, wherein R1, R2, R3 and are as defined in the description. The present invention further relates to a process for preparing the compounds, to pharmaceutical compositions comprising the compounds, and to the use of the compounds in the manufacture of a medicament for the treatment and/or prophylaxis of infectious diseases.
    Type: Application
    Filed: August 7, 2008
    Publication date: February 24, 2011
    Inventors: Zhenhua Huang, Liang Sun
  • Patent number: 7888342
    Abstract: The present invention provides a method of treating fibromyalgia syndrome (FMS), chronic fatigue syndrome (CFS), and pain in an animal subject. The method generally involves administering a therapeutically effective amount of a dual serotonin norepinephrine reuptake inhibitor compound or a pharmaceutically acceptable salt thereof, wherein said dual serotonin norepinephrine reuptake inhibitor compound is characterized by a non-tricyclic structure and an equal or greater inhibition of norepinephrine reuptake than serotonin reuptake. In particular, the use of milnacipran to treat FMS, CFS, and pain is disclosed.
    Type: Grant
    Filed: December 22, 2009
    Date of Patent: February 15, 2011
    Assignee: Cypress Bioscience, Inc.
    Inventors: Jay D. Kranzler, Srinivas G. Rao
  • Patent number: 7820643
    Abstract: The present invention provides a method of treating fibromyalgia syndrome (FMS), chronic fatigue syndrome (CFS), and pain in an animal subject. The method generally involves administering a therapeutically effective amount of a dual serotonin norepinephrine reuptake inhibitor compound or a pharmaceutically acceptable salt thereof, wherein said dual serotonin norepinephrine reuptake inhibitor compound is characterized by a non-tricyclic structure and an equal or greater inhibition of norepinephrine reuptake than serotonin reuptake. In particular, the use of milnacipran to treat FMS, CFS, and pain is disclosed.
    Type: Grant
    Filed: July 18, 2003
    Date of Patent: October 26, 2010
    Assignee: Cypress Bioscience, Inc.
    Inventors: Jay D. Kranzler, Srinivas G. Rao
  • Publication number: 20100256107
    Abstract: Disclosed is a composition which is a stable aqueous carbapenem solution. The composition comprises (a) 1 part by weight of (4R,5S,6S)-6-[(1R)-1-hydroxyethyl]-4-methyl-3-({4-[(5S)-5-methyl-2,5-dihydro-1H-pyrrol-3-yl]-1,3-thiazol-2-yl}sulfanyl)-7-oxo-1-azabicyclo[3.2.0]hept-2-ene-2-carboxylic acid or a pharmaceutically acceptable salt thereof; and (b) 0.002 to 0.040 part by weight of sodium bicarbonate and/or 0.002 to 0.008 part by weight of sodium carbonate. Also disclosed is a composition for producing the above mentioned composition.
    Type: Application
    Filed: December 11, 2008
    Publication date: October 7, 2010
    Inventor: Takashi Nakagawa
  • Publication number: 20100144699
    Abstract: Use of a monobactam antibiotic of formula (I) wherein the oxyimino group i.e. >C?N—O— has Z-orientation, or a pharmaceutically acceptable salt thereof for the manufacture of a medicament for the treatment of a bacterial infection in combination with a carbapenem antibiotic or a pharmaceutically acceptable salt thereof.
    Type: Application
    Filed: March 19, 2008
    Publication date: June 10, 2010
    Inventors: Eric Desarbre, Malcolm G.P. Page
  • Patent number: 7662810
    Abstract: A 2-arylmethylazetidine carbapenem derivative of formula (I) or a pharmaceutically acceptable salt thereof exhibits a wide spectrum of antibacterial activities against Gram-positive and Gram-negative bacteria and excellent antibacterial activities against resistant bacteria such as methicillinresistant Staphylococcus aureus (MRSA) and quinolone-resistant strains (QRS):
    Type: Grant
    Filed: February 24, 2005
    Date of Patent: February 16, 2010
    Assignee: Korea Research Institute of Chemical Technology
    Inventors: Bong-Jin Kim, Jae-Hak Kim, Jae-Yang Kong, Heeyeong Cho, Young-Ro Choi, Chang-Seob Kim
  • Publication number: 20090075969
    Abstract: The present application describes deuterium-enriched doripenem, pharmaceutically acceptable salt forms thereof, and methods of treating using the same.
    Type: Application
    Filed: August 22, 2008
    Publication date: March 19, 2009
    Applicant: PROTIA, LLC
    Inventor: Anthony W. Czarnik
  • Publication number: 20090042819
    Abstract: The invention describes novel organic nitric oxide donor salts of a antimicrobial compounds, and novel compositions and kits comprising at least one organic nitric oxide donor salt of an antimicrobial compound, and, optionally, at least one nitric oxide enhancing compound and/or at least one therapeutic agent. The invention also provides methods for (a) treating bacterial infections; (b) treating viral infections; (c) treating fungal infections; and (d) treating lesions. In one embodiment the antimicrobial compounds of the invention are aztreonam, ciprofloxacin, doripenam, duramycin and tobramycin. The organic nitric oxide donors that form salts are preferably organic nitrates, organic nitrites, nitrosothiols, thionitrites and heterocyclic nitric oxide donors. The heterocyclic nitric oxide donors are preferably furoxans, sydnonimines, oxatriazole-5-ones and/or oxatriazole-5-imines.
    Type: Application
    Filed: February 16, 2006
    Publication date: February 12, 2009
    Applicant: NitroMed, Inc.
    Inventors: James L. Ellis, David S. Garvey, Chia-En Lin
  • Publication number: 20090018111
    Abstract: An antimicrobial combination medicament for injection comprising a ?-lactam compound represented by the formula [1], wherein R1 is lower alkyl or the like, R2 is H or lower alkyl group, X is O, S or NH; m and n are 0 to 4, provided that the sum of m and n is 0 to 4; Y1 is halogen or the like; and Y2 is hydrogen, optionally substituted lower alkyl group or the like; and carbapenems such as meropenem.
    Type: Application
    Filed: September 9, 2005
    Publication date: January 15, 2009
    Inventors: Makoto Sunagawa, Yutaka Ueda, Katsunori Kanazawa
  • Publication number: 20090018091
    Abstract: The invention describes compositions and kits comprising at least one nitric oxide enhancing group antimicrobial compound, or pharmaceutically acceptable salts thereof, and novel compositions comprising at least one nitric oxide enhancing antimicrobial compound, and, optionally, at least one nitric oxide enhancing compound and/or at least one therapeutic agent. The invention also provides methods for (a) treating bacterial infections; (b) treating viral infections; (c) treating fungal infections; and (d) treating lesions. The antimicrobial compounds of the invention are preferably tobramycin, aztreonam, ciprofloxacin and doripenam. The nitric oxide enhancing antimicrobial compounds are substituted with at least one heterocyclic nitric oxide donor group and/or at least one nitroxide group. The nitric oxide enhancing groups are nitroxides and/or heterocyclic nitric oxide donors. The heterocyclic nitric oxide donors are furoxans, sydnonimines, oxatriazole-5-ones and/or oxatriazole-5-imines.
    Type: Application
    Filed: August 2, 2006
    Publication date: January 15, 2009
    Applicant: NITROMED, INC.
    Inventors: James L. Ellis, David S. Garvey
  • Patent number: 7439253
    Abstract: The invention relates to novel heterocyclic compounds of general formula (I), and their salts with a base or an acid: The invention also relates to a method for preparing these compounds, and to their use as medicaments, in particular as antibacterials and ?-lactamase inhibitors.
    Type: Grant
    Filed: December 4, 2003
    Date of Patent: October 21, 2008
    Assignee: Novexel
    Inventors: Maxime Lampilas, Branislav Musicki, Michel Klich, David Alan Rowlands
  • Publication number: 20080207586
    Abstract: A novel crystal of a pyrrolidylthiocarbapenem derivative having excellent stability is provided. According to the present invention, a crystal of (+)-(4R,5S,6S)-6-[(1R)-1-hydroxyethyl]-4-methyl-7-oxo-3[[(3S,5S)-5-(sulfamoylaminomethyl)pyrrolidin-3-yl]thio]-1-azabicyclo[3.2.0]hept-2-ene-2-carboxylic acid having a diffraction pattern in powder X-ray diffraction preferably having main peaks at diffraction angles (2?)=13.04, 14.98, 15.88, 16.62, 20.62, 21.06, 22.18, 23.90, 26.08, 28.22 and 28.98 (degrees) is provided.
    Type: Application
    Filed: February 5, 2008
    Publication date: August 28, 2008
    Inventors: Izumi Saitoh, Masayuki Takahira, Toshio Kawakita, Yasuyuki Yoshioka
  • Patent number: 7163936
    Abstract: 1. A ?-lactam compound of the formula [1]; wherein R1 is a lower alkyl, a lower alkyl substituted by a hydroxy; R2 is a hydrogen, a lower alkyl; X is O, S, NH; m and n are 0 to 4, Y1 is a halogen, cyano, a hydroxy, an amino, a lower alkyloxy, a lower alkylamino, a carboxy, a carbamoyl, a lower alkyl, etc., Y2 is hydrogen, an alkyl, cyano, —C(R3)?NR4 (wherein R3 and R4 are hydrogen, an amino, an alkyl, etc., or R3 and R4 may combine each other together with the nitrogen atom to form a 5- to 7-membered heterocyclic group), or a pharmaceutically acceptable salt thereof, or a non-toxic ester thereof, which has an excellent antibacterial activity against Gram-positive bacteria, especially against MRSA and MRCNS.
    Type: Grant
    Filed: November 6, 2001
    Date of Patent: January 16, 2007
    Assignee: Dainippon Sumitomo Pharma Co., Ltd.
    Inventors: Makoto Sunagawa, Katsumi Kubota, Masanori Itoh, Erwin Goetschi
  • Patent number: 7001897
    Abstract: A 1-methylcarbapenem compound represented by the formula (I): having antibacterial activity, pharmacologically acceptable esters or salts thereof and pharmaceutical compositions (particularly antibacterial agents) containing them as an active ingredient are described. In addition, the invention includes the use of these compounds, ester derivatives or salts for the manufacture of pharmaceutical compositions, or a method for the prevention or treatment of diseases (particularly bacterial infections) by administering a pharmacologically effective amount of the compounds, ester derivatives or salts to warm-blooded animals (particularly human beings).
    Type: Grant
    Filed: May 15, 2003
    Date of Patent: February 21, 2006
    Assignee: Sankyo Company, Limited
    Inventors: Yoshiyuki Kobayashi, Tsuyoshi Shinozuka, Osamu Kanno
  • Publication number: 20040102433
    Abstract: 1.
    Type: Application
    Filed: May 8, 2003
    Publication date: May 27, 2004
    Inventors: Makoto Sunagawa, Katsumi Kubota, Masanori Itoh, Erwin Goetschi
  • Publication number: 20040014962
    Abstract: 1-Methylcarbapenem compounds having antibacterial activity, pharmacologically acceptable esters or salts thereof and pharmaceutical compositions (particularly antibacterial agents) containing them as an active ingredient are described. In addition, the invention includes the use of these compounds, ester derivatives or salts for the manufacture of pharmaceutical compositions, or a method for the prevention or treatment of diseases (particularly bacterial infections) by administering a pharmacologically effective amount of the compounds, ester derivatives or salts to warm-blooded animals (particularly human beings).
    Type: Application
    Filed: May 15, 2003
    Publication date: January 22, 2004
    Applicant: SANKYO COMPANY, LIMITED
    Inventors: Yoshiyuki Kobayashi, Tsuyoshi Shinozuka, Osamu Kanno
  • Patent number: 6599895
    Abstract: Novel &bgr;-lactam compound of the formula [1]: wherein R1 is lower alkyl or hydroxy-substituted lower alkyl, R2 is H or lower alkyl, X is O or, S, R3 is H, metal or protecting group, W is a 6- or 7-membered nitrogen-containing heterocycle optionally being substituted at carbon atoms. Said &bgr;-lactam compound shows excellent antibacterial activity against Gram-positive bacteria, particularly against methicillin-resistant Staphylococcus aureus and methicillin-resistant and coagulase-negative Staphylococcus aureus.
    Type: Grant
    Filed: January 12, 2001
    Date of Patent: July 29, 2003
    Assignee: Sumitomo Pharmaceuticals Company, Limited
    Inventors: Makoto Sunagawa, Hiroshi Yamaga, Yoshihiro Sumita, Hisatoshi Shinagawa
  • Patent number: 6514962
    Abstract: Stabilized preparations which contain a &bgr;-lactam antibiotic having an esterified carboxyl group attached directly to the mother nucleus, an oil and a phosphate.
    Type: Grant
    Filed: February 5, 2001
    Date of Patent: February 4, 2003
    Assignee: Takeda Schering-Plough Animal Health K.K.
    Inventors: Hatsuo Shibatani, Tomoyasu Nakamura
  • Patent number: 6479478
    Abstract: It is provided carbapenem compounds represented by the following formula (I): wherein R is hydrogen atom, or substituted or unsubstituted lower alkyl group; and, n is an integer of 1 or 2, or a pharmaceutically acceptable salt thereof, and an antibacterial compositions containing these compounds as an active ingredient. These carbapenem compounds exhibit potent antibacterial activities and are excellent in the resistance against renal dehydropeptidase.
    Type: Grant
    Filed: March 8, 2001
    Date of Patent: November 12, 2002
    Assignee: Wyeth Lederle Japan, Ltd.
    Inventors: Takao Abe, soh-ichi Kaneda, Kazuhiko Hayashi
  • Patent number: 6265396
    Abstract: A &bgr;-lactam compound of the formula: wherein R1 is lower alkyl or OH-substituted lower alkyl, R2 is H or lower alkyl, X is O, S or NH, n is 1 to 3, R3 is —C(Ra)═NH (Ra is H, lower alkyl or substituted lower alkyl), or a salt thereof, or an ester thereof. These compounds show excellent antibacterial activity against Gram-positive bacteria, particularly against methicillin-resistant Staphylococci and methicillin-resistant and coagulase-negative Staphylococci.
    Type: Grant
    Filed: March 2, 1999
    Date of Patent: July 24, 2001
    Assignee: Sumitomo Pharmaceuticals Co., Ltd.
    Inventors: Makoto Sunagawa, Hiroshi Yamaga, Hiroshi Nouda, Hisatoshi Shinagawa
  • Patent number: 6180622
    Abstract: Compounds of formula (I) and compounds of formula (II) which have potent antimicrobial activity against a wide range of bacteria including Gram-positive bacteria and Gram-negative bacteria as well as heve potent antimicrobial activity against various &bgr;-lactamase-producing bacteria, MRSA, and resistant Pseudomonas aeruginosa and are very stable against DHP-1.
    Type: Grant
    Filed: July 23, 1998
    Date of Patent: January 30, 2001
    Assignee: Meiji Seika Kaisha, Ltd.
    Inventors: Kazuhiro Aihara, Toshiro Sasaki, Yumiko Toyooka, Yuko Kano, Kunio Atsumi, Katsuyoshi Iwamatsu, Takashi Ida