Patents by Inventor Ikuo Ueda

Ikuo Ueda 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: 4411900
    Abstract: Benzhydrylpiperazinyl Thiazole compounds of the formula ##STR1## wherein R.sup.1 is hydrogen, amino, or mono- or di- substituted amino, in which the substituent is selected from lower alkyl, acyl and di(lower)alkylaminomethylene,R.sup.2 is hydrogen, halogen, lower alkyl or aryl,R.sup.3 is ar(lower)alkyl optionally substituted by halogen,A is lower alkylene optionally interrupted by a sulfur atom, andY is C.sub.1 -C.sub.3 alkylene,having antiallergic activity.
    Type: Grant
    Filed: December 11, 1980
    Date of Patent: October 25, 1983
    Assignee: Fujisawa Pharmaceutical Co., Ltd.
    Inventors: Ikuo Ueda, Daizou Morino, Koichi Takimoto
  • Patent number: 4399278
    Abstract: 7-Amino-2 or 3-cephem-4-carboxylic acid compounds of the formula: ##STR1## wherein R.sup.1 is amino; R.sup.2 is carboxy or carboxy protected by a pharmaceutically acceptable group; ##STR2## is di(lower)alkylamino(lower)alkylamino, an unsaturated or saturated 3 to 8 membered heteromonocyclic(lower)alkylamino group containing 1 to 4 nitrogen atoms, an unsaturated or saturated 3 to 8 membered heteromonocyclic(lower)alkylamino group containing 1 to 4 nitrogen atoms substituted by lower alkyl orhydroxy(lower)alkyl, an unsaturated or saturated 5 to 6 membered heteromonocyclic group containing 2 to 4 nitrogen atoms, an unsaturated or saturated 5 to 6 membered heteromonocyclic group containing 2 to 4 nitrogen atoms substituted by lower alkyl or hydroxy(lower)alkyl or hydroxypiperidino, and X is --S or ##STR3## and pharmaceutically acceptable salts thereof.
    Type: Grant
    Filed: February 26, 1982
    Date of Patent: August 16, 1983
    Assignee: Fujisawa Pharmaceutical Co., Ltd.
    Inventors: Ikuo Ueda, Masakazu Kobayashi, Hisashi Yamada, Hiroki Ono
  • Patent number: 4379922
    Abstract: This invention relates to new compounds comprising alkoxyimino dioxy butyric acid cepham derivatives, useful as intermediates in the production of antimicrobial agents.
    Type: Grant
    Filed: December 5, 1980
    Date of Patent: April 12, 1983
    Assignee: Fujisawa Pharmaceutical Co., Ltd.
    Inventors: Ikuo Ueda, Takao Takaya, Masakazu Kobayashi, Takashi Masugi, Hisashi Takasugi, Hiromu Kochi, Tadashi Kitaguchi
  • Patent number: 4377580
    Abstract: Quinazoline derivatives of the formulae: ##STR1## wherein A.sup.1 is ##STR2## A.sup.2 is ##STR3## R.sup.1 is hydrogen, carboxy or esterified carboxy, R.sub.a.sup.1 and R.sub.b.sup.1 are esterified carboxy,R.sup.2 and R.sup.3 are hydrogen, alkyl, halogen, nitro, amino, alkoxy, aryloxy, alkylthio, alkylpiperazinyl, acylamino or dialkylamino which may be substituted with hydroxy,R.sup.4 is hydrogen, alkyl, hydroxy, alkoxy, alkenyloxy, dialkylamino or 2,2-dialkoxycarbonylvinylaminoR.sub.a.sup.4 is hydrogen, alkyl, hydroxy, alkoxy, alkenyloxy or dialkylamino,R.sup.5 is alkyl or alkenyl, andR.sup.6 is carboxy or esterified carboxy.
    Type: Grant
    Filed: November 25, 1980
    Date of Patent: March 22, 1983
    Assignee: Fujisawa Pharmaceutical Co., Ltd.
    Inventors: Ikuo Ueda, Masayuki Kato, Masanobu Nagano
  • Patent number: 4370340
    Abstract: A pharmaceutical composition comprising certain benzothiazoline alkanoic acid derivatives for the prevention and treatment of various diabetic complications, said derivatives being inhibitors of aldose reductase.
    Type: Grant
    Filed: June 2, 1980
    Date of Patent: January 25, 1983
    Assignee: Fujisawa Pharmaceutical Co., Ltd.
    Inventors: Ikuo Ueda, Masaaki Matsuo, Susumu Satoh, Takao Watanabe
  • Patent number: 4368325
    Abstract: This invention relates to novel compounds of antimicrobial activity of the formula: ##STR1## wherein R.sup.1 is an aliphatic hydrocarbon group which may have suitable substituents,R.sup.2 is carboxy or protected carboxy,R.sup.5 is hydrogen or hydroxy,X.sup.1 and X.sup.2 are each halogen, andthe dotted line represents cepham or cephem nucleus, or a salt thereof.
    Type: Grant
    Filed: March 4, 1981
    Date of Patent: January 11, 1983
    Assignee: Fujisawa Pharmaceutical Co., Ltd.
    Inventors: Ikuo Ueda, Masakazu Kobayshi
  • Patent number: 4367238
    Abstract: This invention relates to new phenyl-alkanoic acids, their derivatives at the carboxy group, and pharmaceutically acceptable salts thereof, which have anti-inflammatory, analgesic and antipyretic activities.
    Type: Grant
    Filed: January 21, 1981
    Date of Patent: January 4, 1983
    Assignee: Fujisawa Pharmaceutical Company, Ltd.
    Inventors: Ikuo Ueda, Yoshihiko Kitaura, Masaaki Matsuo, Nobukiyo Konishi
  • Patent number: 4354022
    Abstract: A new process for preparing 3-methylenecepham compounds of the formula: ##STR1## wherein R.sup.1 is amino or a protected amino group, andR.sup.2 is a carboxy or a protected carboxy group,or a salt thereof,which comprises reducing a compound of the formula: ##STR2## wherein R.sup.1 and R.sup.2 are each as defined above, andR.sup.3 is halogen or heterocyclicthio which may have suitable sutstituent, or a salt thereof, with a combination of a metal selected from the group consisting of zinc, tin and iron, and an ammonium salt of an acid selected from the group consisting of ammonium halide, ammonium carbonate and ammonium acetate, said 3-methylenecepham compounds being useful as intermediates for preparing antimicrobially active 3-cephem compounds.
    Type: Grant
    Filed: June 5, 1981
    Date of Patent: October 12, 1982
    Assignee: Fujisawa Pharmaceutical Co., Ltd.
    Inventors: Takao Takaya, Takashi Masugi, Toshiyuki Chiba, Akiteru Yoshioka, Masayuki Kato, Ikuo Ueda, Masakazu Kobayashi
  • Patent number: 4327093
    Abstract: 3,7-Disubstituted-2 or 3-cephem-4-carboxylic acid compounds of the formula: ##STR1## wherein R.sup.1 is acylamino or ar(lower)alkylamino; R.sup.2 is carboxy or carboxy protected by a pharmaceutically acceptable group; --N--R.sup.3, R.sup.4 is di(lower)alkylamino(lower)alkylamino, an unsaturated or saturated 3 to 8 membered heteromonocyclic (lower)alkylamino group containing 1 to 4 nitrogen atoms, an unsaturated or saturated 3 to 8 membered heteromonocyclic (lower)alkylamino group containing 1 to 4 nitrogen atoms substituted by lower alkyl or hydroxy(lower) alkyl, an unsaturated or saturated 5 to 6 membered heteromonocyclic group containing 2 to 4 nitrogen atoms, an unsaturated or saturated 5 to 6 membered heteromonocyclic group containing 2 to 4 nitrogen atoms substituted by lower alkyl or hydroxy(lower)alkyl or hydroxypiperidino, and X is --S-- or ##STR2## and pharmaceutically acceptable salts thereof. The present compounds are useful for the treatment of infectious diseases in animals and human beings.
    Type: Grant
    Filed: October 17, 1979
    Date of Patent: April 27, 1982
    Assignee: Fujisawa Pharmaceutical Co., Ltd.
    Inventors: Ikuo Ueda, Masakazu Kobayashi, Hisashi Yamada, Hiroki Ono
  • Patent number: 4298529
    Abstract: The invention relates to new antimicrobially active 3-cephem compounds, processes for preparing such compounds, new intermediate compounds comprising alkoxyimino dioxy butyric acid derivatives useful in said processes, and processes for preparation of said intermediates.
    Type: Grant
    Filed: December 10, 1979
    Date of Patent: November 3, 1981
    Assignee: Fujisawa Pharmaceutical Co., Ltd.
    Inventors: Ikuo Ueda, Takao Takaya, Masakazu Kobayashi, Takashi Masugi, Hisashi Takasugi, Hiromu Kochi, Tadashi Kitaguchi
  • Patent number: 4283492
    Abstract: Production of antibiotic WS-3442 A, B, C, D and E, and their acyl derivatives thereof, the production of antibiotic WS-3442 A, B, C, D and E being a new method by culturing a new species of Streptomyces and their acyl derivatives of said antibiotics being prepared by acylating said antibiotics with an acylating agent. The acyl derivative of antibiotic WS-3442 A, B, C, D and E has antimicrobiological activity and is also useful for intermediate for preparing Cephalosporin derivatives having antimicrobiological activity.
    Type: Grant
    Filed: June 13, 1978
    Date of Patent: August 11, 1981
    Assignee: Fujisawa Pharmaceutical Co., Ltd.
    Inventors: Hiroshi Imanaka, Junzi Hosoda, Kazuyoshi Jomon, Heiichi Sakai, Ikuo Ueda, Daizou Morino
  • Patent number: 4181228
    Abstract: This invention relates to an apparatus for conveying cops and bobbins for directly connecting a ring frame with a winder wherein one operation to feed those cops which are doffed onto the transport-bands on both the right and left sides of the ring frame to the subsequent process from one end of each of the transport-bands and the other operation to receive bobbins needed for the next doffing onto the transport-band are together simultaneously performed, with these two simultaneous operations being repeated. This invention has no provision of a random stock zone and the substantial function of bobbin stock is given to the transport-band, and the bobbin returned from the winder is adjusted in alignment thereof by the bobbin aligning device and conveyed by the bobbin stock conveyor and dropped onto the transport-band.
    Type: Grant
    Filed: April 14, 1978
    Date of Patent: January 1, 1980
    Assignee: Kuraray Co., Ltd.
    Inventors: Kiyozi Hashimoto, Tsuyoshi Shimatani, Takemi Yamamoto, Ryoichi Morimoto, Ikuo Ueda
  • Patent number: 4105781
    Abstract: Chromone compounds having the structure ##STR1## wherein R is aryl, substituted aryl, thienyl, furyl or pyridyl, Y is hydroxy (lower) alkylene, R.sub.1 is hydrogen, lower alkyl, aryl, substituted aryl or a heterocyclic group, R.sub.2 is hydrogen or lower alkoxy, Y.sub.1 is lower alkylene or hydroxyl (lower) alkylene, Z is oxygen or sulfur and R.sub.3 is hydrogen, lower alkyl, aryl, substituted aryl, or ar (lower) alkyl have anti-allergic activity and are useful in the treatment of asthma. Compounds of the structure [I] are prepared by reacting ##STR2## wherein Y' is hydroxy (lower) alkylene whose hydroxy group is optimally protected or a reactive derivative of [II] with a carboxylic acid of the formula R--COOH in the presence of a basic catalyst. The resulting compound is then reacted with an acid. Compounds of the structure [I'] are prepared by reacting the compound ##STR3## with the compound X--Y.sub.1 '--Z--R.sub.
    Type: Grant
    Filed: April 19, 1977
    Date of Patent: August 8, 1978
    Assignee: Fujisawa Pharmaceutical Co., Ltd.
    Inventors: Suminori Umio, Shizuo Maeno, Ikuo Ueda, Yoshinari Sato, Masaaki Matsuo
  • Patent number: 4096263
    Abstract: 1,2,3,4-Tetrahydroisoquinolines of the formula ##STR1## wherein R is a heterocyclic group which may have appropriate substituent(s) and pharmaceutically acceptable salts thereof, which have relaxing activity on smooth muscle, are disclosed, together with a method for their preparation.
    Type: Grant
    Filed: July 21, 1976
    Date of Patent: June 20, 1978
    Assignee: Fujisawa Pharmaceutical Co., Ltd.
    Inventors: Teiji Kishimoto, Ikuo Ueda, Masayuki Kato
  • Patent number: 4094870
    Abstract: 2-substituted thio-1,4-benzodiazepine derivatives having medicinal use of the general formula ##STR1## wherein R.sub.1 and R.sub.2 individually signify hydrogen atom or a halogen atom, or a nitro, amino, hydroxy, cyano, alkyl, haloalkyl, alkoxy, alkylthio, alkanesulfinyl, alkanesulfonyl, alkanoylamino or dialkylamino group, R.sub.3 signifies an alkylene group, and R.sub.4 and R.sub.5 individually signify hydrogen atom or an alkyl group and, when R.sub.4 and R.sub.5 are both alkyl groups, said alkyl groups together may form a ring with or without oxygen atom or an imino group, said ring optionally having a substituent or substituents, and its non-toxic pharmaceutically acceptable salts.
    Type: Grant
    Filed: October 15, 1976
    Date of Patent: June 13, 1978
    Assignee: Fujisawa Pharmaceutical Co., Ltd.
    Inventors: Ikuo Ueda, Masaaki Matsuo
  • Patent number: 4049664
    Abstract: Chromone compounds having the structure ##STR1## wherein R is aryl, substituted aryl, thienyl, furyl or pyridyl, Y is hydroxy (lower) alkylene, R.sub.1 is hydrogen, lower alkyl, aryl, substituted aryl or a heterocyclic group, R.sub.2 is hydrogen or lower alkoxy, Y.sub.1 is lower alkylene or hydroxyl (lower) alkylene, Z is oxygen or sulfur and R.sub.3 is hydrogen, lower alkyl, aryl, substituted aryl, or ar(lower)alkyl have anti-allergic activity and are useful in the treatment of asthma. Compounds of the structure [I] are prepared by reacting ##STR2## wherein Y' is hydroxy (lower) alkylene whose hydroxy group is optimally protected or a reactive derivative of [II] with a carboxylic acid of the formula R--COOH in the presence of a basic catalyst. The resulting compound is then reacted with an acid. Compounds of the structure [I] are prepared by reacting the compound ##STR3## with the compound X--Y.sub.1 '--Z--R.sub.
    Type: Grant
    Filed: April 22, 1976
    Date of Patent: September 20, 1977
    Assignee: Fujisawa Pharmaceutical Co., Ltd.
    Inventors: Suminori Umio, Shizuo Maeno, Ikuo Ueda, Yoshinari Sato, Masaaki Matsuo
  • Patent number: 4001280
    Abstract: Chromone derivatives of the formula: ##STR1## wherein R.sup.1 is alkoxy, an N,S-containing heterocyclic group or aryloxy in which heterocyclic group may be substituted with halogen or acyl, and aryl may be substituted with amino, alkylamino, acylamino, nitro or alkylenedioxy; R.sup.2 is alkylene; R.sup.3 is hydroxy, alkoxy or a group of the formula ##STR2## in which R.sup.4 is hydrogen, R.sup.5 is hydroxy or amino or R.sup.4 and R.sup.5 means taken together with the adjacent nitrogen atom, piperazinyl substituted with alkyl or hydroxyalkyl; provided that when R.sup.3 is hydroxy or alkoxy, R.sup.1 is an N,S-containing heterocyclic group or aryloxy in which heterocyclic group is substituted with halogen or acyl, and aryl is substituted with amino, alkylamino, acylamino, nitro or alkylenedioxy, and nontoxic, pharmaceutically acceptable salt thereof. These compounds are useful as anti-allergic agents.
    Type: Grant
    Filed: June 20, 1973
    Date of Patent: January 4, 1977
    Assignee: Fujisawa Pharmaceutical Co., Ltd.
    Inventors: Suminori Umio, Ikuo Ueda, Masaaki Matsuo, Masakazu Kobayashi, Osamu Nakaguti, Yoshinari Sato
  • Patent number: 3965122
    Abstract: Chromone compounds having the structure ##SPC1##Wherein R is aryl, substituted aryl, thienyl, furyl or pyridyl, Y is hydroxy(lower)alkylene, R.sub.1 is hydrogen, lower alkyl, aryl, substituted aryl or a heterocyclic group, R.sub.2 is hydrogen or lower alkoxy, Y.sub.1 is lower alkylene or hydroxyl(lower)alkylene, Z is oxygen or sulfur and R.sub.3 is hydrogen, lower alkyl, aryl, substituted aryl, or ar(lower)alkyl have anti-allergic activity and are useful in the treatment of asthma. Compounds of the structure [I] are prepared by reacting ##SPC2##Wherein Y' is hydroxy(lower)alkylene whose hydroxy group is optimally protected or a reactive derivative of [II] with a carboxylic acid of the formula R--COOH in the presence of a basic catalyst. The resulting compound is then reacted with an acid. Compounds of the structure [I'] are prepared by reacting the compound ##SPC3##With the compound X--Y.sub.1 '--Z--R.sub.
    Type: Grant
    Filed: December 28, 1971
    Date of Patent: June 22, 1976
    Assignee: Fujisawa Pharmaceutical Co., Ltd.
    Inventors: Suminori Umio, Shizuo Maeno, Ikuo Ueda, Yoshinari Sato, Masaaki Matsuo