Patents by Inventor Daijiro Hagiwara

Daijiro Hagiwara 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: 5994378
    Abstract: This invention relates to novel thiazolylbenzofuran derivatives of formula (I) wherein R.sup.1 is lower alkyl, L is single bond or lower alkylene optionally substituted with aryl, oxo or hydroxy, and Q is a heterocyclic group optionally substituted with one or more suitable substituent(s); or lower alkoxy substituted with aryl which is substituted with one or more suitable substituent(s) and at least one of which is lower alkoxy optionally substituted with cyano, protected carboxy, carboxy, lower alkylene, a heterocyclic group optionally substituted with oxo, or amidino optionally substituted with hydroxy or lower alkoxy, or its salt, which possess activities as leukotriene and SRS-A antagonists or inhibitors.
    Type: Grant
    Filed: July 21, 1998
    Date of Patent: November 30, 1999
    Assignee: Fujisawa Pharmaceutical Co., Ltd.
    Inventors: Masaaki Matsuo, Kazuo Okumura, Shinji Shigenaga, Hiroaki Nishimura, Hiroshi Matsuda, Daijiro Hagiwara, Tadashi Terasaka
  • Patent number: 5939413
    Abstract: This invention relates to piperazine derivatives of the formula: wherein each symbol is as defined in the description, and its pharmaceutically acceptable salt, to processes for preparation thereof, to pharmaceutical composition comprising the same, and to a use of the same for treating or Tachykinin-mediated diseases in human beings or animals.
    Type: Grant
    Filed: November 24, 1997
    Date of Patent: August 17, 1999
    Assignee: Fujisawa Pharmaceutical Co., Ltd.
    Inventors: Masaaki Matsuo, Daijiro Hagiwara, Takashi Manabe, Nobukiyo Konishi, Shinji Shigenaga, Kenji Murano, Hiroshi Matsuda, Hiroshi Miyake
  • Patent number: 5883098
    Abstract: A piperazine compound of the formula: ##STR1## wherein: X is carbonyl or sulfonyl;Y is a direct bond or lower alkylene; andR.sub.1, R.sub.2, R.sub.3, R.sub.4 are as defined herein. The compounds are advantageously used as Tachykinin antagonists in the treatment of respiratory diseases, ophthalmic diseases and inflammatory diseases, for example.
    Type: Grant
    Filed: June 27, 1997
    Date of Patent: March 16, 1999
    Assignee: Fujisawa Pharmaceutical Co., Ltd.
    Inventors: Masaaki Matsuo, Daijiro Hagiwara, Takashi Manabe, Nobukiyo Konishi, Shinji Shigenaga, Kenji Murano, Hiroshi Matsuda, Hiroshi Miyake
  • Patent number: 5670505
    Abstract: A piperazine compound of the formula: ##STR1## wherein: X is carbonyl or sulfonyl;Y is a direct bond or lower alkylene; andR.sub.1, R.sub.2, R.sub.3, R.sub.4 are as defined herein. The compounds are advantageously used as Tachykinin antagonists in the treatment of respiratory diseases, ophthalmic diseases and inflammatory diseases, for example.
    Type: Grant
    Filed: November 28, 1994
    Date of Patent: September 23, 1997
    Assignee: Fujisawa Pharmaceutical Co., Ltd.
    Inventors: Masaaki Matsuo, Daijiro Hagiwara, Takashi Manabe, Nobukiyo Konishi, Shinji Shigenaga, Kenji Murano, Hiroshi Matsuda, Hiroshi Miyake
  • Patent number: 5654400
    Abstract: A method of making a peptide compound of the formula: ##STR1## wherein R.sup.1 is hydrogen or lower alkyl,R.sup.2 is lower alkyl or halogen,R.sup.3 is hydrogen, lower alkyl or halogen,R.sup.4 is lower alkyl,R.sup.5 is ar(lower)alkyl,R.sup.6 is amino or optionally protected hydroxy, andX is O, S or N--R.sup.7, in which R.sup.7 is N,N-di(lower)alkylamino(lower)alkyl,which is useful as tachykinin antagonist.
    Type: Grant
    Filed: August 9, 1996
    Date of Patent: August 5, 1997
    Assignee: Fujisawa Pharmaceutical Co., Ltd.
    Inventors: Masaaki Matsuo, Daijiro Hagiwara, Hiroshi Miyake
  • Patent number: 5633232
    Abstract: Disclosed herein are compounds of the following formula: ##STR1## wherein R.sup.1 is a group of the formula ##STR2## "X" is CH.sub.2 or N, "Z" is O, S, or N--R.sup.6, "A" is an amino acid residue, and Y, R.sup.2, R.sup.3, R.sup.4, R.sup.5, R.sup.6, and R.sup.7 are substituent variables as defined herein.The compounds are antagonists of tachykinin, and as such are useful for alleviation of pain and for treatment of disorders including asthma, bronchitis, rhinitis, conjunctivitis, dermatitis, arthritis, and urticaria.
    Type: Grant
    Filed: June 10, 1994
    Date of Patent: May 27, 1997
    Assignee: Fujisawa Pharmaceutical Co., Ltd.
    Inventors: Masaaki Matsuo, Daijiro Hagiwara, Hiroshi Miyake
  • Patent number: 5468731
    Abstract: A compound of the formula: ##STR1## wherein R.sup.1 is aryl, or a group of the formula: ##STR2## wherein X is CH or N, and Z is O or N--R.sup.5,in which R.sup.5 is hydrogen or lower alkyl,R.sup.2 is hydroxy or lower alkoxy,R.sup.3 is hydrogen or lower alkyl which may have suitable substituent(s),R.sup.4 is ar(lower)alkyl which may have suitable substituent(s),A is carbonyl or sulfonyl, andY is a bond or lower alkenylene,and pharmaceutically acceptable salt thereof. The disclosed compounds are useful for treating respiratory diseases such as bronchaedema.
    Type: Grant
    Filed: June 28, 1994
    Date of Patent: November 21, 1995
    Assignee: Fujisawa Pharmaceutical Co., Ltd.
    Inventors: Masaaki Matsuo, Daijiro Hagiwara, Hiroshi Miyake
  • Patent number: 5420297
    Abstract: A substance P antagonistic peptide of the following formula is disclosed: ##STR1##
    Type: Grant
    Filed: April 21, 1992
    Date of Patent: May 30, 1995
    Assignee: Fujisawa Pharmaceutical Co., Ltd.
    Inventors: Masaaki Matsuo, Daijiro Hagiwara, Hiroshi Miyake
  • Patent number: 5321032
    Abstract: A tachykinin-antagonistic compound of the following general formula:R.sup.1 --A.sup.1 --D--Trp(R.sup.2)--A.sup.2 --R.sup.3[whereinR.sup.1 is hydrogen or amino-protective groupR.sup.2 is amino-protective groupR.sup.3 is ar(lower)alkoxy or N-(lower)alkyl or N-ar(lower)alkylaminoA.sup.1 is single bond or one amino acid residueA.sup.2 is one amino acid residue other than Phe.]or the salt thereof.
    Type: Grant
    Filed: August 12, 1992
    Date of Patent: June 14, 1994
    Assignee: Fujisawa Pharmaceutical Co., Ltd.
    Inventors: Masaaki Matsuo, Daijiro Hagiwara, Hiroshi Miyake
  • Patent number: 5187156
    Abstract: The present invention relates to DTrp-Phe containing tripeptides and pharmaceuticals, which possess tachykinin antagonism activity as well as processes of making such peptides.
    Type: Grant
    Filed: March 2, 1989
    Date of Patent: February 16, 1993
    Assignee: Fujisawa Pharmaceutical Co., Ltd.
    Inventors: Masaaki Matsuo, Daijiro Hagiwara, Hiroshi Miyake
  • Patent number: 5164372
    Abstract: Peptide compounds having Substance P antagonism of the formula: ##STR1## wherein R.sup.1 is lower alkyl, aryl, arylamino, pyridyl, pyrrolyl, pyrazolopyridyl, quinolyl, or a group of the formula: ##STR2## wherein the symbol of a line and dotted line is a single bond or a double bond; X is CH or N; Z is O, S or NH; R.sup.2 is hydrogen or lower alkyl; R.sup.3 is hydrogen or hydroxy; R.sup.4 is lower alkyl which may have suitable substituent(s); R.sup.5 is ar(lower)alkyl which may have suitable substituent(s) or pyridyl(lower)alkyl, or R.sup.4 and R.sup.5 are linked together to form benzene-condensed lower alkylene; A is an amino acid residue excepting D-Trp, which may have suitable substituent(s); and Y is bond, lower alkylene or lower alkenylene;and their pharmaceutically acceptable salts are disclosed.
    Type: Grant
    Filed: April 6, 1990
    Date of Patent: November 17, 1992
    Assignee: Fujisawa Pharmaceutical Company, Ltd.
    Inventors: Masaaki Matsuo, Daijiro Hagiwara, Hiroshi Miyake
  • Patent number: 4497801
    Abstract: Peptides of the following formulae:H-THR-LYS-GLU-LYS-LEU-LYS-SER-GLU-LEU-VAL-ALA-ASN-OH, H-GLU-LEU-LYS-SER-GLU-LEU-VAL-ALA-ASN-OH, H-LYS-LEU-LYS-SER-GLU-OH,are effective in the treatment of bacteria viral infection.
    Type: Grant
    Filed: September 6, 1983
    Date of Patent: February 5, 1985
    Assignee: Fujisawa Pharmaceutical Co., Ltd.
    Inventors: Masashi Hashimoto, Keiji Hemmi, Daijiro Hagiwara
  • Patent number: 4369312
    Abstract: This invention relates to a novel method of producing oxo-containing azetidinone compounds, or salts thereof, or hydrates thereof, said compounds having utility as antimicrobial agents and as intermediates for the synthesis of other azetidinone compounds having antimicrobial activity.
    Type: Grant
    Filed: July 1, 1981
    Date of Patent: January 18, 1983
    Assignee: Fujisawa Pharmaceutical Co., Ltd.
    Inventors: Masashi Hashimoto, Matsuhiko Aratani, Daijiro Hagiwara, Kozo Sawada, Tetsuo Onami
  • Patent number: 4350694
    Abstract: This invention relates to cephalosporin analogues and pharmaceutically acceptable salts thereof, of high antimicrobial activity.
    Type: Grant
    Filed: March 27, 1980
    Date of Patent: September 21, 1982
    Assignee: Fujisawa Pharmaceutical Co., Ltd.
    Inventors: Misashi Hashimoto, Keiji Hemmi, Matsuhiko Aratari, Hidekazu Takeno, Daijiro Hagiwara
  • Patent number: 4342760
    Abstract: The invention deals with Cephalosporin Analogues of the formula: ##STR1## wherein R.sup.1 is amino or amino substituted with a pharmaceutically acceptable carboxylic acyl protective group for the amino substituents in cephalosporin compounds or with benzyl, phenethyl or trityl, andR.sup.2 is carboxy or a pharmaceutically acceptable ester of said carboxy group employed in cephalosporin compounds, and pharmaceutically acceptable salts thereof, and their use as antimicrobial agents.
    Type: Grant
    Filed: October 14, 1980
    Date of Patent: August 3, 1982
    Assignee: Fujisawa Pharmaceutical Company, Ltd.
    Inventors: Masashi Hashimoto, Keiji Hemmi, Matsuhiko Aratani, Hidekazu Takeno, Daijiro Hagiwara
  • Patent number: 4264597
    Abstract: Compounds of the formula ##STR1## wherein X is --O--or --S--;R.sup.1 is amino or a substituted amino group;R.sup.2 is carboxy or a protected carboxy group; and the heavy solid line means single or double bond; the compounds are useful in the treatment of infectious diseases particularly fungal infection, in human beings and animals.
    Type: Grant
    Filed: May 30, 1979
    Date of Patent: April 28, 1981
    Inventors: Masashi Hashimoto, Keiji Hemmi, Matsuhiko Aratani, Hidekazu Takeno, Daijiro Hagiwara
  • Patent number: 4234724
    Abstract: Cephalosporin analogues represented by the formula ##STR1## wherein R.sup.1 is amino or a substituted amino,R.sup.2 is carboxy or a protected carboxy, andR.sup.3 is hydrogen or lower alkoxy, processes for making the same, azetidinone intermediates and pharmaceutical compositions comprising said cephalosporin analogues as active ingredients.
    Type: Grant
    Filed: December 22, 1978
    Date of Patent: November 18, 1980
    Assignee: Fujisawa Pharmaceutical Company, Limited
    Inventors: Masashi Hashimoto, Keiji Hemmi, Matsuhiko Aratani, Hidekazu Takeno, Daijiro Hagiwara
  • Patent number: 4083848
    Abstract: Novel carbonic acid esters are disclosed which are useful in a process for introducing esterified carboxy-type protective groups on amino and/or imino groups in amino and/or imino group - containing compounds for the temporary protection of said amino and/or imino groups. Additionally, processes for preparing said esters are also disclosed.
    Type: Grant
    Filed: January 3, 1977
    Date of Patent: April 11, 1978
    Assignee: Fujisawa Pharmaceutical Co., Ltd.
    Inventors: Masumi Itoh, Takashi Kamiya, Daijiro Hagiwara
  • Patent number: 4010178
    Abstract: Carbonic acid esters of the formula substituent(s) substituents(s)R'.sub.1 OCOOR'.sub.2wherein R'.sub.1 is lower alkyl which may have substituent)s) selected from the group of halogen, lower alkoxy and aryloxy, or ar(lower)-alkyl which may have substituents)s) selected from the group of lower alkoxy, halogen, nitro and cyano, andR'.sub.2 is benzotriazolyl which may have halogen; or a group represented by the formula: ##STR1## wherein Y' and Z' are each cyano, nitro, carbamoyl, esterified carboxy, lower alkanoyl, aroyl or disubstituted carbamoyl; provided that whenR'.sub.2 is a group represented by the formula: ##STR2## wherein Y' and Z' are each cyano, nitro, carbamoyl or esterified carboxy, R'.sub.1 is ar(lower) alkyl having substituent(s) selected from the group of lower alkoxy, halogen, nitro and cyano.A process for the protection of amino and/or imino groups in compounds containing them by reacting them with the aforementioned esters is also disclosed.
    Type: Grant
    Filed: August 26, 1975
    Date of Patent: March 1, 1977
    Assignee: Fujisawa Pharmaceutical Co., Ltd.
    Inventors: Takashi Kamiya, Masumi Itoh, Daijiro Hagiwara
  • Patent number: RE30752
    Abstract: Novel carbonic acid esters are disclosed which are useful in a process for introducing esterified carboxy-type protective groups on amino and/or imino groups in amino and/or imino group-containing compounds for the temporary protection of said amino and/or imino groups. Additionally, processes for preparing said esters are also disclosed. .Iadd.
    Type: Grant
    Filed: February 21, 1979
    Date of Patent: September 29, 1981
    Assignee: Fujisawa Pharmaceutical Co., Ltd.
    Inventors: Masumi Itoh, Takashi Kamiya, Daijiro Hagiwara