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: 5028531
    Abstract: IGF-I fused with a protective peptide, in which the protective peptide is a protein peptide and is used for the protection of IGF-I from degradation by protease in cells of E. coli is disclosed. Also disclosed are genes coding for the fused IGF-I's, plasmids containing the genes, and E. coli microorganisms transformed with the plasmids.
    Type: Grant
    Filed: July 6, 1988
    Date of Patent: July 2, 1991
    Assignee: Fujisawa Pharmaceutical Company, Ltd.
    Inventors: Ikuo Ueda, Mineo Niwa, Yoshimasa Saitoh, Susumu Satoh, Chihiro Kusunoki, Tadashi Kitaguchi, Hiroki Ono
  • Patent number: 5019500
    Abstract: IGF-I fused with a protective peptide, in which the protective peptide is a protein peptide and is used for the protection of IGF-I from degradation by protease in cells of E. coli is disclosed. Also disclosed are genes coding for the fused IGF-I's, plasmids containing the genes, and E. coli microorganisms transformed with the plasmids.
    Type: Grant
    Filed: July 11, 1988
    Date of Patent: May 28, 1991
    Assignee: Fujisawa Pharmaceutical Company, Ltd.
    Inventors: Ikuo Ueda, Mineo Niwa, Yoshimasa Saito, Susumu Sato, Hiroki Ono, Tadashi Kitaguchi
  • Patent number: 4797399
    Abstract: The present invention relates to N-containing fused heterocyclic compounds of the formula: ##STR1## wherein R.sub.1 and R.sub.2 are each hydrogen, halogen, aryl, lower alkyl, halo (lower) alkyl or nitro,R.sub.3 is lower alkylene,R.sub.4 and R.sub.5 are each lower alkylene,X is CH or N,Y is S, O, NH, C.dbd.N--OH or CO,Z is O or NH, andA is hydrogen, nitroso, amidino, a group of ##STR2## wherein R.sub.6 and R.sub.7 are each hydrogen, lower alkyl, acyl, or lower alkaneimidoyl which may be substituted with esterified carboxy, or a group of the formula:--N.dbd.R.sub.8,wherein R.sub.8 is lower alkylidene which may be substituted with aryl optionally substituted with suitable substituent(s).The compounds are useful for treatment of thrombosis, inflammation, or allergic disease.
    Type: Grant
    Filed: December 23, 1986
    Date of Patent: January 10, 1989
    Assignee: Fujisawa Pharmaceutical Co., Ltd.
    Inventors: Ikuo Ueda, Masaaki Matsuo, Kiyoshi Tsuji, Hiroyuki Okumura, Osamu Nakaguchi
  • Patent number: 4782055
    Abstract: The present invention relates to imidazopyridine compounds of the formula: ##STR1## wherein R.sup.1 is lower alkynyl or lower alkynyloxy(lower)-alkyl,R.sup.2 is lower alkyl, andR.sup.3 is ar(lower)alkyl having lower alkoxy, lower alkylthio, nitro or lower alkanesulfonyl, ar(lower)alkyl having nitro and one or two additional substituent(s) selected from nitro and lower alkyl, or heterocyclic(lower)alkyl which may have suitable substituent(s), and to their utility.The compounds have antiulcerative properties.
    Type: Grant
    Filed: December 16, 1986
    Date of Patent: November 1, 1988
    Assignee: Fujisawa Pharmaceutical Co., Ltd.
    Inventors: Ikuo Ueda, Youichi Shiokawa, Kazuhiko Take, Hiromichi Itani
  • Patent number: 4767780
    Abstract: This invention provides a benezene-fused heterocyclic compound of the formula: ##STR1## wherein R.sup.1 is halogen, nitro, amino, hydroxy, lower alkyl, lower alkoxy substituted by carboxy or protected carboxy, acylamino which may have lower alkyl on the amino moiety, or aryloxy which may have halogen,R.sup.2 is hydrogen or halogen,X is --O-- or ##STR2## in which R.sup.3 is hydrogen, lower alkyl or acyl and A is a group of the formula: ##STR3## in which R.sup.4 is hydrogen, lower, alkenyl, lower alkynyl or alkyl which may have suitable substituent(s) selected from the groups consisting of hydroxy, acyl, lower alkoxy, di(lower)alkylamino, carboxy, protected carboxy and aryl; orR.sup.1 is hydrogen or lower alkoxy,R.sup.2 is hydrogen,X is ##STR4## in which R.sub.a.sup.3 is lower alkanoyl and A is a group of the formula: ##STR5## and pharmaceutically acceptable salts thereof.
    Type: Grant
    Filed: April 24, 1987
    Date of Patent: August 30, 1988
    Assignee: Fujisawa Pharmaceutical Co., Ltd.
    Inventors: Ikuo Ueda, Youichi Shiokawa, Takashi Manabe, Yousuke Katsura
  • Patent number: 4764514
    Abstract: This invention provides a oxothiazolidine compound of the formula: ##STR1## wherein R.sup.1 is acyl;di(lower)alkylamino(lower)alkylcarbamoyl(lower)alkyl; arylcarbamoyl(lower)alkyl;ar(lower)alkylcarbamoyl(lower)alkyl;heterocyclic carbamoyl(lower)alkyl;heterocyclic(lower)alkylcarbamoyl(lower)alkyl;thiazolidinylcarbonyl(lower)alkyl;morpholinylcarbonyl(lower)alkyl or a group of the formula: ##STR2## in which A is lower alkylene;n is an integer of 0 or 1;m is an integer of 2 or 3;X is --N--, ##STR3## or --CH-- and R.sup.2 is hydroxy;lower alkyl which may have hydroxy;ar(lower)alkyl which may have halogen;arylthio which may have halogen;acyl or heterocyclic group andY is --S--, ##STR4## or pharmaceutically acceptable salt thereof. This compound is useful as cognition activator. This invention further provides processes for the preparation of this compound and pharmaceutical composition comprising compound of the above formula.
    Type: Grant
    Filed: April 24, 1986
    Date of Patent: August 16, 1988
    Assignee: Fujisawa Pharmaceutical Co., Ltd.
    Inventors: Ikuo Ueda, Yousuke Katsura
  • Patent number: 4745179
    Abstract: The present invention relates to a .sup.59 Valine insulin-like growth factor I (.sup.59 Val.IGF-I), to a .sup.59 Val-IGF-I fused to a protective peptide, to a gene coding for .sup.59 Val-IGF-I, to a gene coding for fused .sup.59 Val-IGF-I, to a plasmid containing the .sup.59 Val-IGF-I gene, to a host organism containing a plasmid containing the .sup.59 Val-IGF-I gene, to a host organism containing a plasmid containing the fused .sup.59 Val-IGF-I gene, and to processes for the production of these.
    Type: Grant
    Filed: March 20, 1985
    Date of Patent: May 17, 1988
    Assignee: Fujisawa Pharmaceutical Co., Ltd.
    Inventors: Ikuo Ueda, Mineo Niwa, Yoshimasa Saito, Susumu Sato, Hiroki Ono, Tadashi Kitaguchi
  • Patent number: 4742057
    Abstract: A thiazole compound of allergically activity of the formula: ##STR1## wherein R.sup.1 is amino optionally having suitable substituent(s),R.sup.2 is hydrogen, lower alkyl or aryl,R.sup.3 is hydrogen, nitro, amino optionally having suitable substituent(s), hydroxy or lower alkoxy,A is lower alkylene,Q is hydrogen or halogen, anda heavy solid line means a single or double bond,or a pharmaceutically acceptable salt thereof, processes for the preparation thereof and pharmaceutical composition comprising the same.
    Type: Grant
    Filed: November 20, 1986
    Date of Patent: May 3, 1988
    Assignee: Fujisawa Pharmaceutical Co., Ltd.
    Inventors: Ikuo Ueda, Masaaki Matsuo, Takashi Manabe, Hiroshi Matsuda
  • Patent number: 4738967
    Abstract: A compound of the formula: ##STR1## wherein R.sup.1 is lower alkyl,R.sup.3 is hydrogen, halogen or ar(lower)alkoxy, andR is lower alkanoyl, nitroso, amino, carboxy, esterified carboxy, carbamoyl, hydroxycarbamoyl, haloformyl, aminomethyleneamino which may be substituted with cyano or lower alkyl, iminomethylamino which may be substituted with cyano or lower alkyl, or a group of the formula: --A--R.sup.2 in which A is lower alkylene andR.sup.2 is di(lower) alkylamino, cyano, lower alkoxy, N-containing heterocyclic group which may have suitable substituent(s), lower alkynyloxy, lower alkenyloxy, lower alkylthio, amino(lower)alkylthio, lower alkylsulfinyl, lower alkylsulfonyl, carboxy, esterified carboxy, carbamoyl, hydroxycarbamoyl, hydroxy, lower alkanoyloxy, heterocyclicamino(lower)alkylthio having two oxo groups, hydrogen or a group of the formula: ##STR2## in which R.sup.4, R.sup.5 and R.sup.6 are each lower alkyl andX is an acid residue,and pharmaceutically acceptable salts thereof.
    Type: Grant
    Filed: December 23, 1986
    Date of Patent: April 19, 1988
    Assignee: Fujisawa Pharmaceutical Co., Ltd.
    Inventors: Ikuo Ueda, Youichi Shiokawa, Masayuki Kato, Nobukiyo Konishi, Atsushi Akahane
  • Patent number: 4735952
    Abstract: This invention provides a piperidine compound of the formula: ##STR1## wherein R.sup.1 is hydrogen or trihalomethyl,R.sup.2 is hydrogen or protected carboxy,R.sup.3 is heterocyclic group or aryl which may be halogen substituted, andX is --S--, ##STR2## --O--, --NH-- or lower alkylene which may be hydroxy substituted, and pharmaceutically acceptable salt thereof, These compounds possess hypotensive activity and are useful as anti-hypertensive agents. The invention further relates to processes for the preparation of these compounds and pharmaceutical compositions comprising compounds of the above formula.
    Type: Grant
    Filed: January 24, 1986
    Date of Patent: April 5, 1988
    Assignee: Fujisawa Pharmaceutical Co., Ltd.
    Inventors: Ikuo Ueda, Masaaki Matsuo, Kiyoshi Taniguchi, Takatomo Ogahara
  • Patent number: 4729991
    Abstract: The invention relates to novel cephem compounds of high antimicrobial activity of the formula: ##STR1## wherein R.sup.1 is amino or protected amino,R.sup.2 is halogen,R.sup.3 is hydrogen or lower alkyl,R.sup.4 is hydrogen, lower alkyl or lower alkoxy,R.sup.5 is hydrogen, halogen, lower alkyl, lower alkoxy, hydroxymethyl or unsaturated heterocyclicthiomethyl in which the heterocyclic moiety may be substituted with lower alkyl or lower alkenyl, andR.sup.6 is carboxy or functionally modified carboxy, and its pharmaceutically acceptable salt thereof.
    Type: Grant
    Filed: September 24, 1982
    Date of Patent: March 8, 1988
    Assignee: Fujisawa Pharmaceutical Co., Ltd.
    Inventors: Ikuo Ueda, Masakazu Kobayashi, Tadashi Kitaguchi
  • Patent number: 4725601
    Abstract: Certain imidazo[1,2-a]heterocyclic compounds useful in the treatment of ulcers are provided.
    Type: Grant
    Filed: May 21, 1986
    Date of Patent: February 16, 1988
    Assignee: Fujisawa Pharmaceutical Co., Ltd.
    Inventors: Ikuo Ueda, Youichi Shiokawa, Kazuhiko Take, Hiromichi Itani
  • Patent number: 4705787
    Abstract: Anti-allergic quinazolinone derivatives are disclosed which have the formula ##STR1## wherein R.sup.3 is hydrogen or lower alkyl and A is lower alkylene.
    Type: Grant
    Filed: June 2, 1986
    Date of Patent: November 10, 1987
    Assignee: Fujisawa Pharmaceutical Co., Ltd.
    Inventors: Ikuo Ueda, Masayuki Kato
  • Patent number: 4703046
    Abstract: This invention concerns antibiotic cephalosporins of the formula ##STR1## wherein R.sup.1 is amino or protected amino; R.sup.2 is halogen; R.sup.3 is alkyl; and R.sup.6 is carboxy or protected carboxy.
    Type: Grant
    Filed: September 6, 1979
    Date of Patent: October 27, 1987
    Assignee: Fujisawa Pharmaceutical Co., Ltd.
    Inventors: Ikuo Ueda, Masakazu Kobayashi, Tadashi Kitaguchi
  • Patent number: 4692444
    Abstract: This invention provides a benzene-fused heterocyclic compound of the formula: ##STR1## wherein R.sup.1 is halogen, nitro, amino, hydroxy, lower alkyl, lower alkoxy or acylamino,X is --S--, ##STR2## n is an integer of 1 or 2 and A is a group of the formula: ##STR3## in which R.sup.2 is hydrogen, lower alkyl, lower alkynyl, carboxy(lower)alkyl or protected carboxy(lower)alkyl, or pharmaceutically acceptable salts thereof. This compound possesses diuretic, uricosuric, and vasodilative activities and therefore is useful as a diuretic agent, uricosuric agent and anti-hypertensive agent. This invention further provides processes for the preparation of this compound and pharmaceutical composition comprising compound of the above formula.
    Type: Grant
    Filed: March 5, 1986
    Date of Patent: September 8, 1987
    Assignee: Fujisawa Pharmaceutical Co., Ltd.
    Inventors: Ikuo Ueda, Youichi Shiokawa, Takashi Manabe, Yousuke Katsura
  • Patent number: 4686227
    Abstract: A compound of the formula: ##STR1## wherein R.sup.1 is lower alkyl,R.sup.3 is hydrogen, halogen or ar(lower)alkoxy, andR is lower alkanoyl, nitroso, amino, carboxy, esterified carboxy, carbamoyl, hydroxycarbamoyl, haloformyl, aminomethyleneamino which may be substituted with cyano or lower alkyl, iminomethylamino which may be substituted with cyano or lower alkyl, or a group of the formula: --A--R.sup.2 in whichA is lower alkylene andR.sup.2 is di(lower)alkylamino, cyano, lower alkoxy, N-containing heterocyclic group which may have suitable substituent(s), lower alkynyloxy, lower alkenyloxy, lower alkylthio, amino(lower)alkylthio, lower alkylsulfinyl, lower alkylsulfonyl, carboxy, esterified carboxy, carbamoyl, hydroxycarbamoyl, hydroxy, lower alkanoyloxy, heterocyclicamino (lower)alkylthio having two oxo groups, hydrogen or a group of the formula: ##STR2## in which R.sup.4, R.sup.5 and R.sup.6 are each lower alkyl andX is an acid residue,and pharmaceutically acceptable salts thereof.
    Type: Grant
    Filed: June 17, 1985
    Date of Patent: August 11, 1987
    Assignee: Fujisawa Pharmaceutical Co., Ltd.
    Inventors: Ikuo Ueda, Youichi Shiokawa, Masayuki Kato, Nobukiyo Konishi, Atsushi Akahane
  • Patent number: 4675324
    Abstract: This invention provides a benezene-fused heterocyclic compound of the formula: ##STR1## wherein R.sup.1 is halogen, nitro, amino, hydroxy, lower alkyl, lower alkoxy substituted by carboxy or protected carboxy, acylamino which may have lower alkyl on the amino moiety, or aryloxy which may have halogen,R.sup.2 is hydrogen or halogen,X is --O-- or ##STR2## in which R.sup.3 is hydrogen, lower alkyl or acyl and A is a group of the formula: ##STR3## in which R.sup.4 is hydrogen, lower alkenyl, lower alkynyl or alkyl which may have suitable substituent(s) selected from the groups consisting of hydroxy, acyl, lower alkoxy, di(lower)alkylamino, carboxy, protected carboxy and aryl; orR.sup.1 is hydrogen or lower alkoxy,R.sup.2 is hydrogen,X is ##STR4## in which R.sub.a.sup.3 is lower alkanoyl and A is a group of the formula: ##STR5## and pharmaceutically acceptable salts thereof.
    Type: Grant
    Filed: September 26, 1985
    Date of Patent: June 23, 1987
    Assignee: Fujisawa Pharmaceutical Co., Ltd.
    Inventors: Ikuo Ueda, Youichi Shiokawa, Takashi Manabe, Yousuke Katsura
  • Patent number: 4673676
    Abstract: Pyrimidoisoquinoline/compounds of the formula: ##STR1## where R.sup.1 is H, halogen or lower alkyl, R.sup.2 is NH.sub.2, NO.sub.2 or acylamino and R.sup.3 is carboxy or protected carboxy, pharmaceutically acceptable salts thereof, and pharmaceutical compositions thereof are disclosed in this application. Also disclosed is a method of treating allergies by administering the compounds of this invention.
    Type: Grant
    Filed: November 9, 1984
    Date of Patent: June 16, 1987
    Assignee: Fujisawa Pharmaceutical Co., Ltd.
    Inventors: Ikuo Ueda, Youichi Shiokawa, Takashi Manabe
  • Patent number: 4613608
    Abstract: Compounds of the formula ##STR1## are disclosed whereinR.sup.1 is hydrogen or lower alkyl, one of R.sup.2 and R.sup.3 is mono (or di)-nitroxy(lower)alkyl and the otherR.sup.2 and R.sup.3 is hydrogen and pharmaceutically acceptable salts thereof.Also disclosed are vasodilating compositions containing the above.
    Type: Grant
    Filed: May 8, 1985
    Date of Patent: September 23, 1986
    Assignee: Fujisawa Pharmaceutical Co., Ltd.
    Inventors: Ikuo Ueda, Daizo Morino, Koichi Takimoto
  • Patent number: 4608375
    Abstract: The present invention relates to novel quinazolinone derivatives and pharmaceutically acceptable salts thereof. More particularly, it relates to novel quinazolinone derivatives and pharmaceutically acceptable salts thereof which have antiallergic activities, to processes for the preparation thereof, to pharmaceutical composition comprising the same, and to a method of using the same therapeutically in the treatment of allergic symptoms in human being and animals.
    Type: Grant
    Filed: June 21, 1984
    Date of Patent: August 26, 1986
    Assignee: Fujisawa Pharmaceutical Co., Ltd.
    Inventors: Ikuo Ueda, Masayuki Kato