Patents Examined by Flona T. Powers
  • Patent number: 6998412
    Abstract: The present invention provides a preventive or therapeutic agent for hyperlipidemia, comprising as an active ingredient a heterocyclic compound of the formula [1], or a pharmaceutically acceptable salt thereof: R1-Het-D-E [1] wherein: R1 is optionally substituted aryl or aromatic heterocyclic group, Het is a divalent aromatic heterocyclic group, D is alkylene, alkenylene, alkynylene, or the like, and E is carboxy, or the like, and novel compounds among the heterocyclic compounds of the formula [1] above, which has blood triglyceride lowering effect, LDL-C lowering effect, and blood glucose lowering effect and blood insulin lowering effect, or HDL-C increasing effect or atherogenic index lowering effect all together, and hence is useful in the prevention or treatment of hyperlipidemia, arteriosclerosis, diabetes mellitus, hypertension, obesity, and the like.
    Type: Grant
    Filed: February 17, 2004
    Date of Patent: February 14, 2006
    Assignee: Nippon Shinyaku Co., Ltd.
    Inventors: Kenji Kuwabara, Tomiyoshi Aoki
  • Patent number: 6965019
    Abstract: Mono- and Bis-Azo/Hydrazone Pyrrole Pigments and Methods for preparing same.
    Type: Grant
    Filed: April 3, 2001
    Date of Patent: November 15, 2005
    Assignee: Sun Chemical Corporation
    Inventors: Terence Chamberlain, Norman W. Smith, Donald T. DeRussy
  • Patent number: 6884876
    Abstract: The present invention relates to water insoluble disperse-reactive dyes expressed by the formula (3) and (4) and to their preparation, (3) (4) wherein each of Ar1 and Ar2 represents aryl or benzothiazole group, and each of R, R1, R2, and R3 independently represents hydrogen, alkyl, alkoxy, cyanoalkyl or aminoacetyl group.
    Type: Grant
    Filed: January 16, 2002
    Date of Patent: April 26, 2005
    Assignee: Korea Research Institute of Chemical Technology
    Inventors: Sea Wha Oh, Seung Rim Shin, Tae Kyung Kim, Sun Il Kim, Jong Il Shin
  • Patent number: 6864273
    Abstract: The present invention concerns compounds of formula (I) a stereochemically isomeric form thereof, an N-oxide form thereof or a pharmaceutically acceptable acid addition salt thereof, wherein —Z1—Z2— is a bivalent radical; R1, R2 and R3 are each independently selected from hydrogen, C1-6alkyl, hydroxy, halo and the like; or when R1 and R2 are on adjacent carbon atoms, R1 and R2 taken together may form a bivalent radical of formula; Alk1 and Alk2 are optionally substituted C1-6alkanediyl; R6 is hydrogen or phenylmethyl; R5 is a radical of formula wherein n is 1 or 2; p1 is 0, and p2 is 1 or 2; or p1 is 1 or 2, and p2 is 0; X is oxygen, sulfur or ?NR9; Y is oxygen or sulfur; R7 is hydrogen, C1-6alkyl, C3-6cycloalkyl, phenyl or phenylmethyl; R8 is C1-6alkyl, C3-6cycloalkyl phenyl or phenylmethyl; R9 is cyano, C1-6alkyl, C3-6cyclo-alkyl, C1-6alkyloxycarbonyl or aminocarbonyl; R10 is hydrogen or C1-6alkyl; and Q is a bivalent radical.
    Type: Grant
    Filed: May 23, 2000
    Date of Patent: March 8, 2005
    Assignee: Janssen Pharmaceutica N.V.
    Inventors: Kristof Van Emelen, Marcel Frans Leopold De Bruyn
  • Patent number: 6756488
    Abstract: A compound which can be used as a dye and is represented by the following general formulae (I), (II) and (III). In the general formulae, A and B each independently represents a monovalent heterocyclic group bonded to an azo group by a carbon atom of the monovalent heterocyclic group; m and n each independently represents one of 0 and 1; and M represents one of a hydrogen atom and a monovalent positive ion.
    Type: Grant
    Filed: January 24, 2003
    Date of Patent: June 29, 2004
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Hisashi Mikoshiba, Tadashi Omatsu, Makoto Suzuki, Koushin Matsuoka, Masuji Motoki
  • Patent number: 6737416
    Abstract: A compound represented by the following general formula (I) and a pharmacologically acceptable salt thereof: wherein R1 represents hydrogen atom, an alkyl group, a substituted alkyl group and the like; R2 and R3 represent hydrogen atom, an alkyl group, a substituted alkyl group, an alkoxyl group and the like; X represents —CH2—, —O—, or —NH—; A represents the following group (II): [in which R7 and R8 represent hydrogen atom, an alkyl group, an acyl group, an alkoxycarbonyl group and the like; R9 and R10 represents hydrogen atom, a halogen atom, hydroxyl group, phenyl group, an alkyl group and the like] and the like; and E represents hydrogen atom and the like, which has inhibitory activity against carboxypeptidase B and is useful for therapeutic and/or preventive treatment of a thrombotic disease.
    Type: Grant
    Filed: October 7, 2002
    Date of Patent: May 18, 2004
    Assignee: Meiji Seika Kaisha Ltd.
    Inventors: Kenichi Fushihara, Chika Kikuchi, Tetsuya Matsushima, Kenichi Kanemoto, Eriko Satoh, Takehiro Yamamoto, Kokichi Suzuki
  • Patent number: 6716843
    Abstract: Compound of formula (I): wherein:  represents an optionally substituted, 5-membered, nitrogen-containing heterocycle, R1 represents hydrogen, alkyl, acyl, prolyl, alanyl, histidylprolyl or phenylalanylprolyl, Ak represents an alkylene or heteroalkylene chain, X represents a single bond or optionally substituted phenylene, R2 represents optionally substituted alkyl, (C3-C10)cycloalkyl, or —NR2aR2b wherein R2a and R2b, which may be the same or different, each represent hydrogen or alkyl or, together with the nitrogen atom carrying them, form a nitrogen-containing heterocycle, Y represents R3 represents hydrogen or a group selected from alkyl, (C3-C7) cycloalkyl and aryl, R4, R5 and R6, which may be the same or different, each represent hydrogen or alkyl, or R4 and R6, or R5 and R6, together with the atoms carrying them, form an imidazolidine or dihydrobenzimidazole ring, its optical isomers and addition salts thereof with a pharmaceutically
    Type: Grant
    Filed: March 28, 2002
    Date of Patent: April 6, 2004
    Assignee: Les Laboratoires Servier
    Inventors: Guillaume De Nanteuil, Bernard Portevin, Alain Benoist, Nigel Levens, Olivier Nosjean, Bernadette Husson-Robert
  • Patent number: 6703511
    Abstract: The invention describes a process for the isolation of pure N-vinylpyrrolidone from N-vinylpyrrolidone-containing crude products, comprising a single-stage or multistage crystallization process, which comprises passing the mother liquor from the first crystallization stage either to a distillative and/or extractive purification, or returning it to an N-vinylpyrrolidone-containing product stream of the preparation process.
    Type: Grant
    Filed: November 21, 2002
    Date of Patent: March 9, 2004
    Assignee: BASF Aktiengesellschaft
    Inventors: Bernd Eck, Jörg Heilek, Martin Schmidt-Radde, Herbert Helfert
  • Patent number: 6683101
    Abstract: Described are heterocycle-substituted cyclohexylamines of formula (I), and their pharmaceutically acceptable salts thereof.
    Type: Grant
    Filed: December 3, 2002
    Date of Patent: January 27, 2004
    Assignee: Warner-Lambert Company
    Inventors: Russell Joseph Deorazio, Sham Shridhar Nikam, Ian Leslie Scott, Brian Alan Sherer, Lawrence David Wise
  • Patent number: 6632932
    Abstract: The objective of the present invention is to provide a high-purity trisazo compound with excellent light resistance that is useful as a coloring matter for a black aqueous ink for ink jet recording and the like. Thus, the present invention provides a trisazo compound represented by the formula: wherein A1 is a group represented by the formula —COOM or —SO3M, A2 is a hydrogen atom or a group represented by the formula —COOM or —SO3M, M is each independently a hydrogen atom, or onium, R is each independently a hydrogen atom, an alkyl group, an alkoxy group and the like, B is a residue of K acid, Nps is a residue of &ggr; acid, J acid, or RR acid.
    Type: Grant
    Filed: October 25, 2002
    Date of Patent: October 14, 2003
    Assignee: Orient Chemical Industries, Ltd.
    Inventors: Yoshihiro Sawatari, Makiko Matsui, Shuji Sugawara
  • Patent number: 6605733
    Abstract: Provided are a titanium-containing solid catalyst useful for producing an epoxy compound from an olefin compound and a peroxide, and a process for producing an epoxy compound using said catalyst. The titanium-containing solid catalyst is obtainable by calcination of a titanium alkynyl alkoxide supported on a silica gel.
    Type: Grant
    Filed: December 28, 2001
    Date of Patent: August 12, 2003
    Assignee: Maruzen Petrochemical Co., Ltd.
    Inventors: Hideki Omori, Hiroko Ahara, Kazuhiko Haba, Yoshiaki Takaya, Shin Irie
  • Patent number: 6548647
    Abstract: The invention provides a process for preparing azo colorants which comprises spraying one or more coupling components individually or in a mixture and one or more compatible diazonium salts individually or in a mixture, in their solution or suspension form through nozzles to a point of conjoint collision in a reactor chamber enclosed by a housing in a microjet reactor, a gas or an evaporating liquid being passed into the reactor chamber through an opening in the housing for the purpose of maintaining a gas atmosphere in the reactor chamber, and the resulting product solution or suspension and the gas or the evaporated liquid being removed from the reactor through a further opening in the housing by means of overpressure on the gas entry side or underpressure on the product and gas exit side.
    Type: Grant
    Filed: October 5, 2001
    Date of Patent: April 15, 2003
    Assignee: Clariant GmbH
    Inventors: Erwin Dietz, Joachim Weber, Dieter Schnaitmann, Christian Wille, Leonhard Unverdorben, Klaus Saitmacher, Jörg Jung, Kristina Schiffer
  • Patent number: 6545164
    Abstract: The present invention provides low molecular weight fluorescent labeling complexes with large wavelength shifts between absorption of one dye in the complex and emission from another dye in the complex. These complexes can be used, for example, for multiparameter fluorescence cell analysis using a single excitation wavelength. The low molecular weight of the complex permits materials labeled with the complex to penetrate cell structures for use as probes. The labeling complexes are synthesized by covalently attaching through linkers at least one cyanine fluorochrome to another low molecular weight fluorochrome to form energy donor-acceptor complexes. Resonance energy transfer from an excited donor to fluorescent acceptor provides wavelength shifts up to 300 nm. The fluorescent labeling complexes preferably contain reactive groups for the labeling of functional groups on target compounds, such as derivatized oxy and deoxy polynucleic acids, antibodies, enzymes, proteins and other materials.
    Type: Grant
    Filed: October 7, 1999
    Date of Patent: April 8, 2003
    Assignee: Carnegie Mellon University
    Inventors: Alan S. Waggoner, Swati R. Mujumdar, Ratnakar B. Mujumdar
  • Patent number: 6525181
    Abstract: The object of the present invention is to provide organic dye compounds which exert satisfactory optical absorption properties and thermal resistance when used in high density optical recording media. The above object is solved by specific trimethine cyanine dyes, light absorbents and optical recording media which comprise the cyanine dyes, and preparations for the cyanine dyes comprising either reacting a benzoindolium compound having a compatible leaving group with a pyrazinoimidazolium compound having a reactive methyl group; or reacting a benzoindolium compound having a reactive methyl group with a pyrazinoimidazolium compound having a compatible leaving group.
    Type: Grant
    Filed: October 23, 2001
    Date of Patent: February 25, 2003
    Assignee: Kabushiki Kaisha Hayashibara Seibutsu Kagaku Kenkyujo
    Inventors: Chiaki Kasada, Katsumi Orita, Kentaro Yano, Toshio Kawata, Shigeo Yasui
  • Patent number: 6518437
    Abstract: Processes for the preparation of pyrrolidones (7 and 8) and pyrrolidines (9 and 10) from tri-O-acetyl-D-erythro-4-pentulosonic acid esters are described. The compounds are aza sugar analogs of D-ribofuranoside and are intermediates to drugs which regulate nucleoside and nucleic acid synthesis.
    Type: Grant
    Filed: September 4, 2001
    Date of Patent: February 11, 2003
    Assignee: Board of Trustees of Michigan State University
    Inventor: Rawle I. Hollingsworth
  • Patent number: 6515151
    Abstract: Methods for the preparation of sidechain-bearing taxanes, comprising the preparation of an oxazoline compound, coupling the oxazoline compound with a taxane having a hydroxyl group directly bonded at C-13 thereof to form an oxazoline sidechain-bearing taxane, and opening the oxazoline ring of the oxazoline sidechain-bearing taxane so formed. Compounds prepared by the methods of the present invention are also disclosed.
    Type: Grant
    Filed: June 13, 2000
    Date of Patent: February 4, 2003
    Assignee: Bristol-Myers Squibb Company
    Inventors: Michael A. Poss, Jerome L. Moniot, Ivan D. Trifunovich, David J. Kucera, John K. Thottahil, Shu-Hui Chen, Jianmei Wei
  • Patent number: 6500935
    Abstract: Specific novel compounds of aromatic bis-acetoamide structures are provided as intermediate compounds to forming different types of coloring agents, at least. Such compounds are useful as intermediates in the production of certain bis-acetoanilide azo dyes, pigments, and polymeric colorants. Such compounds facilitate production of such coloring agents that exhibit favorable tinctorial strength and intense color from orange to greenish yellow within and on different substrates and media. Coloring agents and methods of making such agents are encompassed within this invention as well.
    Type: Grant
    Filed: November 21, 2001
    Date of Patent: December 31, 2002
    Assignee: Milliken & Company
    Inventors: Jusong Xia, John W. Miley
  • Patent number: 6492534
    Abstract: Processes for the preparation of pyrrolidones (7 and 8) and pyrrolidines (9 and 10) from tri-O-acetyl-D-erythro-4-pentulosonic acid esters are described. The compounds are aza sugar analogs of D-ribofuranoside and are intermediates to drugs which regulate nucleoside and nucleic acid synthesis.
    Type: Grant
    Filed: September 4, 2001
    Date of Patent: December 10, 2002
    Assignee: Board of Trustees of Michigan State University
    Inventor: Rawle I. Hollingsworth
  • Patent number: 6489359
    Abstract: The present invention relates to new sulphoxybenzamides of general formula I, processes for preparing them as well as their use as medicaments.
    Type: Grant
    Filed: October 23, 2001
    Date of Patent: December 3, 2002
    Assignee: Boehringer Ingelheim Pharma KG
    Inventors: Ralf Anderskewitz, Kurt Schromm, Franz Birke, Hans Michael Jennewein
  • Patent number: RE38531
    Abstract: Tetrakisazo dyes of formula (I), as defined in claim 1, optionally in admixture with trisazo dyes of formula (X) as defined in claim 4, are valuable anionic dyes for the dyeing of substrates dyeable with anionic dyes, in particular for the dyeing of leather in very intense dark shades.
    Type: Grant
    Filed: March 27, 2002
    Date of Patent: June 8, 2004
    Assignee: Clariant Finance (BVI) Limited
    Inventor: Jordi Berenguer