Patents Assigned to Yamanouchi Pharmaceutical Co., Ltd.
  • Patent number: 4868216
    Abstract: Novel sulfamoyl-substituted phenethylamine derivatives which exhibit .alpha.-adrenergic blocking action and are useful as an antihypertensive agent and an agent for the treatment of congestive heart failure.
    Type: Grant
    Filed: February 14, 1989
    Date of Patent: September 19, 1989
    Assignee: Yamanouchi Pharmaceutical Co., Ltd.
    Inventors: Kazuo Imai, Kunihiro Niigata, Takashi Fujikura, Shinichi Hashimoto, Toichi Takenaka
  • Patent number: 4855310
    Abstract: Novel heterocyclic compounds shown by the general formula ##STR1## or the pharmaceutically acceptable salts thereof useful as medicament in particular as antagonist of slow reacting substance of anaphylaxis (SRS-A).
    Type: Grant
    Filed: March 25, 1988
    Date of Patent: August 8, 1989
    Assignee: Yamanouchi Pharmaceutical Co., Ltd.
    Inventors: Kiyoshi Murase, Toshiyasu Mase, Hiromu Hara, Kenichi Tomioka
  • Patent number: 4845211
    Abstract: Various 7-amino-3-substituted-methyl-3-cephem-4-carboxylic acids and lower alkylsily derivatives such as 7-amino-3-(2,3-cyclopenteno-1-pyridiniomethyl)-3-cephem-4 -carboxylic acid iodide and trimethylsilyl 7-trimethylsilylamino-3 -(5,6,7,8-tetrahydro-2-isoquinoliniomethyl)-3-cephem-4 -carboxylate iodide are valuable intermediates in the preparation of new and novel antibacterial agents. A new process for the preparation of these acids and the derivatives has been devised.
    Type: Grant
    Filed: May 4, 1987
    Date of Patent: July 4, 1989
    Assignee: Yamanouchi Pharmaceutical Co., Ltd.
    Inventors: Tadao Shibanuma, Kohji Nakano, Noriaki Nagano, Yukiyasu Murakami, Ryuichiro Hara, Akio Koda, Atsuki Yamazaki
  • Patent number: 4843008
    Abstract: Novel microorganisms belonging to the genus Micromonospora capable of producing antibiotics YS-02930 K-D, -E or -H represented by formula: ##STR1## wherein R represents a hydrogen atom or a formyl group and a dotted line represents a double bond or a bond shown by: ##STR2## are disclosed. The antibiotics are produced by culturing bacteria belonging to the genus Micromonospora capable of producing at least one antibiotic selected from YS-02930 K-D, -E and -H and, harvesting antibiotic YS-02930 K-D, -E or -H.
    Type: Grant
    Filed: December 18, 1985
    Date of Patent: June 27, 1989
    Assignee: Yamanouchi Pharmaceutical Co., Ltd.
    Inventors: Harumitsu Imai, Ken-ichi Suzuki, Shigeru Miyazaki, Shigenobu Kadota
  • Patent number: 4842577
    Abstract: A novel plaster structural assembly is provided for iontophoresis wherein th e assembly is comprised of an electrode layer and a medicament-containing layer in which a water supplying layer is disposed between the electrode layer and the medicament-containing layer with a sealing cover disposed on the outside of the electrode layer. A method for using the structural assembly for iontophoresis is also provided.
    Type: Grant
    Filed: October 16, 1987
    Date of Patent: June 27, 1989
    Assignee: Yamanouchi Pharmaceutical Co., Ltd.
    Inventors: Yutaka Konno, Mitsuo Mitomi, Takashi Sonobe, Shumpei Yamaguchi
  • Patent number: 4843085
    Abstract: The present invention provides pyridine derivatives of following general formula (I) or a physiologically acceptable acid addition salt thereof: ##STR1## wherein R.sub.1 is a hydrogen atom or a hydroxy group, R.sub.2 and R.sub.3, which may be the same or different, each is a lower alkyl group, and n is an integer of 1 to 6. The invention also provides for producing the pyridine derivative and pharmaceutical compositions containing the same. The compounds (I) possess anti-arrhythmic activity.
    Type: Grant
    Filed: June 29, 1988
    Date of Patent: June 27, 1989
    Assignee: Yamanouchi Pharmaceutical Co., Ltd.
    Inventors: Takashi Fujikura, Yuzo Matsumoto, Masharu Asano
  • Patent number: 4841077
    Abstract: Novel isoflavone derivatives are provided which have the formula ##STR1## and which exhibit cancerocidal and immunosuppressive activity. The invention also provides pharmaceutical compositions containing the derivatives, methods of use and processes for their preparation.
    Type: Grant
    Filed: July 16, 1987
    Date of Patent: June 20, 1989
    Assignee: Yamanouchi Pharmaceutical Co., Ltd.
    Inventors: Noriki Ito, Hiroshi Ogawara, Shunichi Watanabe
  • Patent number: 4803211
    Abstract: This invention relates to novel heterocyclic compounds structurally characterized by containing a specific heterocyclic group and by the presence of --CH.sub.2 --S-- directly bound to the specific heterocyclic group. These heterocyclic compounds are useful as medicines, particularly as antagonists of SRS-A (slow reacting substance of anaphylaxis).
    Type: Grant
    Filed: July 14, 1986
    Date of Patent: February 7, 1989
    Assignee: Yamanouchi Pharmaceutical Co., Ltd.
    Inventors: Toshiyasu Mase, Ryuji Tsuzuki, Hiromu Hara, Kiyoshi Murase, Kenichi Tomioka
  • Patent number: 4798838
    Abstract: The present invention relates to novel phenoxy derivatives represented by the formula (I): ##STR1## wherein: A is an imidazolyl group, a pyridyl group, a pyridyloxy group, an oxo-substituted chromenyloxy group, a lower alkyl group, an amino group which may be substituted with a phenyl group or a lower alkyl group, or a carbamoyl group substituted with a cyclohexylamino group or an imidazolylalkyl group;B is a single bond, a thiazolyl group which may be substituted with a lower alkyl group, a group represented by the formula: --(CH.sub.2).sub.n --O--, --(CH.sub.2).sub.n CONH(CH.sub.2).sub.k -- or --(CH.sub.2).sub.n --N(R.sup.4)-- wherein k is 0 or an integer of 1 to 5, n is an integer of 1 to 6 and R.sup.4 is hydrogen or a lower alkyl group;m is 0 or an integer of 1 to 6;R.sup.1 is a hydroxyl group, an amino group or a lower alkoxy group;R.sup.2 and R.sup.3 which may be the same or different, represent a hydrogen atom or a lower alkyl group hereafter the same:and salts thereof.
    Type: Grant
    Filed: September 30, 1986
    Date of Patent: January 17, 1989
    Assignee: Yamanouchi Pharmaceutical Co., Ltd.
    Inventors: Tadao Kojima, Shunji Kageyama, Minoru Okada, Isao Ohata, Noboru Sato
  • Patent number: 4795753
    Abstract: The present invention relates to novel phenoxy derivatives represented by the formula (I): ##STR1## wherein: A is an imidazolyl group, a pyridyl group, a pyridyloxy group,B is group represented by the formula: --(CH.sub.2).sub.n --O--, --(CH.sub.2).sub.n CONH(CH.sub.2).sub.k -- or --(CH.sub.2).sub.n-N (R.sup.4)-- wherein k is 0 or an integer of 1 to 5, n is an integer of 1 to 6 and R.sup.4 is hydrogen or a lower alkyl group;m is 0 or an integer of 1 to 6;R.sup.1 is a hydroxyl group, an amino group or a lower alkoxy group;R.sup.2 and R.sup.3 which may be the same or different represent, a hydrogen atom or a lower alkyl group hereafter the same, having lipid lowering activity, and salts thereof.
    Type: Grant
    Filed: September 30, 1986
    Date of Patent: January 3, 1989
    Assignee: Yamanouchi Pharmaceutical Co., Ltd.
    Inventors: Tadao Kojima, Shunji Kageyama, Minoru Okada, Isao Ohata, Noboru Sato
  • Patent number: 4794173
    Abstract: Mycaminosyl tylonolide derivatives represented by the following general formula ##STR1## (wherein R.sup.1 denotes hydroxyl group, a lower alkanoyloxy group, benzoyloxy group, azido group, or amino group which mat optionally be substituted with a lower alkyl or a lower alkanoyl radical; R.sup.2 stands for hydrogen atom or hydroxyl group; R.sup.3 expresses hydrogen atom or formyl group; and means a double bond or a radical represented by ), and salts thereof.
    Type: Grant
    Filed: May 9, 1986
    Date of Patent: December 27, 1988
    Assignee: Yamanouchi Pharmaceutical Co., Ltd.
    Inventors: Hamao Umezawa, Sumio Umezawa, Tsutomu Tsuchiya, Tomio Takeuchi, Akihiro Tanaka, Shuichi Sakamoto
  • Patent number: 4794113
    Abstract: Imidazolyl phenoxy derivatives are provided as well as pharmaceutical compositions containing such derivatives. The compositions useful for lowering lipid activity in a subject and accordingly useful for reducing cholesterol and triglycerides.
    Type: Grant
    Filed: January 2, 1987
    Date of Patent: December 27, 1988
    Assignee: Yamanouchi Pharmaceutical Co., Ltd.
    Inventors: Tadao Kojima, Shunji Kageyama, Minoru Okada, Isao Ohata, Noboru Sato
  • Patent number: 4788221
    Abstract: Pharmaceutical compositions for intranasal administration comprising (a) calcitonin and (b) at least one absorption enhancer selected from the group consisting of benzyl alcohol, ethanol, thiamine or a salt thereof, salicylic acid or a salt thereof, capric acid or a salt thereof, Macrogol 400, pyridoxal or a salt thereof, malic acid or a salt thereof and pyrophosphoric acid or a salt thereof, in (c) a liquid diluent or carrier, suitable for application to the nasal mucosa.
    Type: Grant
    Filed: May 5, 1987
    Date of Patent: November 29, 1988
    Assignee: Yamanouchi Pharmaceutical Co., Ltd.
    Inventors: Seiya Kagatani, Shunji Hasumi, Takashi Sonobe, Masayoshi Aruga
  • Patent number: 4782113
    Abstract: Substantially pure neocarzinostatin anticancer agents have the formula (A):(SMA)--(NCS)--(SMA) (A)wherein (NCS) is a divalent neocarzinostatin residue and (SMA) comprises the monovalent residue of a partially half-esterified styrene-maleic acid copolymer having a weight-average molecular weight of from 800 to 2,500, said (NCS) residue being bonded to said (SMA) residues via amide linkages formed between primary amino groups of the neocarzinostatin molecule and carbonyl groups of the partially half-esterified styrene-maleic acid copolymer.
    Type: Grant
    Filed: September 25, 1986
    Date of Patent: November 1, 1988
    Assignees: Kuraray Co., Ltd., Yamanouchi Pharmaceutical Co., Ltd., Kayaku Antibiotics Research Co., Ltd., Hiroshi Maeda
    Inventors: Hiroshi Maeda, Ryunosuke Kanamaru, Nakao Ishida, Toshihiko Yoshitake, Minoru Ueda
  • Patent number: 4782160
    Abstract: A 1,4-dihydropyridine derivative represented by general formula (I): ##STR1## wherein: R.sup.1 and R.sup.2 : which may be the same or different, each represents an alkyl group which may be intervened by an oxygen atom, a cycloalkyl-substituted lower alkyl group or a halogen-substituted lower alkyl group;R.sup.3 and R.sup.4 : which may be the same or different, each represents a lower alkyl group;R.sup.5 and R.sup.6 : which may be the same or different, each represents a hydrogen atom, a nitro group, a halogen atom, a lower alkyl group, a lower alkoxy group, a lower alkylthio group, a lower alkylsulfonyl group or a lower alkylsulfinyl group;R.sup.7 : hydrogen atom or a lower alkyl group;R.sup.8 : a lower alkyl group; a hydroxy-lower alkyl group, an aralkyl group, an aryl group, a lower acyl group, a lower alkylsulfonyl group or an aryloxy-lower alkyl group, an aryloxy-lower alkoxy group, provided that R.sup.7 and R.sup.
    Type: Grant
    Filed: December 8, 1987
    Date of Patent: November 1, 1988
    Assignee: Yamanouchi Pharmaceutical Co., Ltd.
    Inventors: Takashi Fujikura, Yuzo Matsumoto
  • Patent number: 4772475
    Abstract: A pharmaceutical controlled-release individual unit or multiple units formulation in which the individual unit comprises a granulation product obtained by adding a release controlling agent to a mixture of a physiologically active substance and units-forming substance(s) and granulating and resultant mixture, said granulation product (granules) being substantially not disintegrated but gradually releasing the physiologically active substance in the gastrointestinal tract.
    Type: Grant
    Filed: February 27, 1986
    Date of Patent: September 20, 1988
    Assignee: Yamanouchi Pharmaceutical Co., Ltd.
    Inventors: Muneo Fukui, Kouji Tomuro, Shigeru Masuyama, Atsushi Kajiyama, Tamio Hikosaka, Masayoshi Aruga, Saburo Higuchi, Yoshiaki Soeishi
  • Patent number: 4772590
    Abstract: An oily composition of aclarubicin or aclarubicin hydrochloride comprising aclarubicin or aclarubicin hydrochloride; at least one fatty acid selected from saturated medium chain fatty acids, unsaturated medium chain fatty acids and unsaturated long chain fatty acids; and at least one fats and oils selected from iodized oils and vegetable oils.
    Type: Grant
    Filed: June 27, 1986
    Date of Patent: September 20, 1988
    Assignee: Yamanouchi Pharmaceutical Co., Ltd.
    Inventors: Hiroitsu Kawata, Shunji Hasumi, Akira Okada, Masayoshi Aruga, Toshimitsu Konno, Ken Iwai, Hiroshi Maeda
  • Patent number: 4765988
    Abstract: Long acting formulations of amosulalol hydrochloride are provided, wherein the frequency of administering the hypotensive agent is minimized and wherein such formulations are prepared by compounding amosulalol hydrochloride with an enterosoluble material and optionally the inclusion of an organic acid.
    Type: Grant
    Filed: May 5, 1987
    Date of Patent: August 23, 1988
    Assignee: Yamanouchi Pharmaceutical Co., Ltd.
    Inventors: Takashi Sonobe, Hiroshi Sugiura, Tomoh Itoh, Masayoshi Aruga, Hiroitsu Kawata
  • Patent number: 4765983
    Abstract: Adhesive medical tapes for oral mucosa comprising a support layer composed of an intestine-soluble polymer and a medicament-containing layer composed of a water-soluble polymer containing at least one kind of a steroid or non-steroid antiphlogistic and analgesic medicament.
    Type: Grant
    Filed: May 30, 1986
    Date of Patent: August 23, 1988
    Assignee: Yamanouchi Pharmaceutical Co., Ltd.
    Inventors: Hitoshi Takayanagi, Yoshihiro Sawai
  • Patent number: 4764606
    Abstract: A 7-formylaminocephalosporin compound represented by general formula (I): ##STR1## wherein R.sup.1 represents a carboxy group or an aminocarboxymethyl group ##STR2## R.sup.2 represents a hydrogen atom or a protective group for a carboxy group, andR.sup.3 represents a 5- or 6-membered heterocyclic group which may be substituted;or a salt thereof, and a process for producing the compound; The compounds are useful intermediates for other cephalosporin compounds having antibacterial activity, and themselves show antibacterial activity, as well.
    Type: Grant
    Filed: July 28, 1986
    Date of Patent: August 16, 1988
    Assignee: Yamanouchi Pharmaceutical Co., Ltd.
    Inventors: Harumitsu Imai, Ken-ichi Suzuki, Koji Nagai, Shigeru Miyazaki, Kenji Abe, Isao Takahashi, Shigenobu Kadota, Koichi Tanaka