Patents by Inventor Harukazu Fukami

Harukazu Fukami 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: 5039696
    Abstract: A maleimide derivative useful as an active agent for a fungicide for agriculture and horticulture, having the formula (I): ##STR1## wherein X and Y each independently represent a hydrogen atom, a halogen atom, a hydroxyl group, a lower alkyl group, a lower alkoxy group, an aralkyloxy group or a trifluoromethyl group,Z represents a chlorine atom or bromine atom,and R represents a straight or branched alkyl group having 1 to 15 carbon atoms, an alkenyl group having 2 to 5 carbon atoms, an alkynyl group having 2 to 5 carbon atoms, an alkoxyalkyl group having 2 to 5 carbon atoms, an oxoalkyl group having 3 to 6 carbon atoms or a phenyl group or a phenyl alkyl group which may be substituted.
    Type: Grant
    Filed: February 1, 1990
    Date of Patent: August 13, 1991
    Assignee: Suntory Limited
    Inventors: Shinjiro Niwata, Harukazu Fukami, Masaki Hashimoto, Norio Ohtsuka, Fumio Fujita
  • Patent number: 4976773
    Abstract: A compound of the formula: ##STR1## wherein Q.sup.1 is CH or N; R is H or C.sub.1 -C.sub.5 alkyl; X is H, halogen, CF.sub.3, or NO.sub.2 ; Y is H or halogen; Z is --O-- or --NH--; A is ##STR2## wherein Q.sup.2, and Q.sup.3 are each CH or N; R.sup.1 and R.sup.2 are each H, C.sub.1 -C.sub.5 alkyl, C.sub.1 -C.sub.5 alkoxy, or C.sub.2 -C.sub.6 alkxoycarobnyl; R.sup.3, R.sup.4, and R.sup.5 are each H or C.sub.1 -C.sub.5 alkyl; R.sup.6 is H, halogen, or C.sub.1 -C.sub.5 alkyl; R.sup.7, R.sup.8, R.sup.9, and R.sup.10 are each H or C.sub.1 -C.sub.5 alkyl; R.sup.11 is H, C.sub.1 -C.sub.5 alkyl, C.sub.1 -C.sub.5 alkoxy, C.sub.2 -C.sub.6 alkenyl, C.sub.6 -C.sub.10 aryl, C.sub.7 -C.sub.15 aryloxyalkyl, or C.sub.7 -C.sub.15 aralkyl; R.sup.12 and R.sup.13 are each H or C.sub.1 -C.sub.5 alkyl; R.sup.14 is C.sub.1 -C.sub.5 alkyl, C.sub.2 -C.sub.6 alkenyl, C.sub.5 -C.sub.10 aryl, or C.sub.7 -C.sub.15 aralkyl; or R.sup.13 and R.sup.14 taken together form C.sub.3 -C.sub.4 alkylene, V.sup.1 and V.sup.2 are each H, halogen, NO.
    Type: Grant
    Filed: August 10, 1988
    Date of Patent: December 11, 1990
    Assignee: Suntory Limited
    Inventors: Harukazu Fukami, Naoki Higuchi, Naoko Kawaguchi, Masaki Hashimoto, Kinya Ide, Toshio Takahashi
  • Patent number: 4945104
    Abstract: A maleimide derivative having the formula (I): ##STR1## wherein R.sub.1 represents a lower alkyl group having 1 to 4 carbon atoms, R.sub.2, R.sub.3, R.sub.4 and R.sub.5 independently represent a hydrogen atom, a lower alkyl group having 1 to 4 carbon atoms, a phenyl group which may be substituted, or an aralkyl group having 7 to 10 carbon atoms, and X.sub.1 and X.sub.2 independently represent a hydrogen atom or a halogen atom, and a production process thereof as well as a agricultural and horticultural fungicide containing, as an active ingredient, the maleimide derivative.
    Type: Grant
    Filed: June 23, 1989
    Date of Patent: July 31, 1990
    Assignee: Suntory Limited
    Inventors: Harukazu Fukami, Masaki Hashimoto, Shinjiro Niwata, Norio Ohtsuka, Fumio Fujita
  • Patent number: 4826870
    Abstract: A compound of the general formula: ##STR1## wherein m is an integer of 1 to 7, n is 0 or an integer of 1 to 5,R.sup.1 is the phenyl, a substituted phenyl, the phenoxy, a substituted phenoxy or a saturated or unsaturated straight alkyl having 5 to 18 carbon atoms,R.sup.2 is hydrogen atom,R.sup.3 is hydrogen atom, a branched or unbranched alkyl having 3 to 5 carbon atoms, the phenyl, hydroxyphenyl, benzyloxyphenyl, an alkylthio having 1 to 3 carbon atoms in its alkyl moiety, amino, carboxyl, hydroxy, benzyloxy, indolyl or imidazolyl, or R.sup.2 and R.sup.3 together form a single bond between the carbon atom and the nitrogen atom, and a pharmaceutical composition containing said compound are provided. The compound is effective in curing amnesia because of its anti-prolyl endopeptidase activity.
    Type: Grant
    Filed: February 3, 1987
    Date of Patent: May 2, 1989
    Assignee: Suntory Limited
    Inventors: Naoki Higuchi, Masayuki Saitoh, Masaki Hashimoto, Harukazu Fukami, Takaharu Tanaka
  • Patent number: 4810721
    Abstract: A novel pyrrolidineamide derivative that exhibits inhibitory activity toward prolyl endopeptidase and its use as an inhibitor against said enzyme are provided. The pyrrolidineamide of the invention has the following general formula: ##STR1## wherein R.sup.1 is benzyloxycarbonyl or a group of the formula: ##STR2## (wherein m is an integer of from 1 to 5) and R.sup.2 is hydroxy, acyloxyy or a group of the formula: ##STR3## (wherein R.sup.3 and R.sup.4 independently are a hydrogen atom, a halogen atom, a lower alkyl or a lower alkoxy).
    Type: Grant
    Filed: November 17, 1987
    Date of Patent: March 7, 1989
    Assignee: Suntory Limited
    Inventors: Masayuki Saitoh, Takaharu Tanaka, Naoki Higuchi, Masaki Hashimoto, Harukazu Fukami
  • Patent number: 4757083
    Abstract: A novel pyrrolidinylamide ester derivative that exhibits inhibitory activity against prolyl endopeptidase, methods for synthesis thereof and its use as an inhibitor against said enzyme are disclosed. The pyrrolidinylamide ester of the invention has the following general formula: ##STR1## wherein n is 0 or an integer of 1 to 7 and R is hydrogen atom or a straight or branched alkyl having 1 to 8 carbon atoms.
    Type: Grant
    Filed: December 1, 1986
    Date of Patent: July 12, 1988
    Assignee: Suntory Limited
    Inventors: Naoki Higuchi, Masayuki Saitoh, Masaki Hashimoto, Harukazu Fukami, Takaharu Tanaka
  • Patent number: 4716161
    Abstract: A phenylpiperazine derivative according to the present invention has the following general formula [I]: ##STR1## wherein R.sup.1, R.sup.2 and R.sup.3 are independently hydrogen or alkoxy group having 1 to 3 carbon atoms, orR.sup.1 and R.sup.2 or R.sup.2 and R.sup.3 together with carbon atoms to which they are attached form --O(CH.sub.2).sub.m O-- wherein m is an integer of 1 to 3, oreither R.sup.1 or R.sup.2 is amine residue selected from the group consisting of --NH.sub.2 , --NHSO.sub.2 CH.sub.3, --NHCOCH.sub.3 and --NHCONH.sub.2 and the other is hydrogen or alkoxy group of 1 to 3 carbon atoms and R.sup.3 is hydrogen;R.sup.4 and R.sup.5 are independently hydrogen or alkyl group of 1 to 3 carbon atoms;Y is --CO-- or --SO.sub.2 -- provided that at least one of R.sup.1 and R.sup.2 is not hydrogen when Y is --CO--; andn is an integer of 2 to 4.An acid addition salt of the phenylpiperazine derivative having the general formula [I] is included in the present invention.
    Type: Grant
    Filed: April 3, 1985
    Date of Patent: December 29, 1987
    Assignee: Mitsubishi Chemical Industries Limited
    Inventors: Harukazu Fukami, Ryoji Kikumoto, Kenichiro Nakao, Issei Nitta, Shinya Inoue
  • Patent number: 4684739
    Abstract: Alkylenedioxybenzene derivatives are prepared and found to be useful as pharmaceutical agents, particularly as hypotensives.
    Type: Grant
    Filed: December 1, 1981
    Date of Patent: August 4, 1987
    Assignee: Mitsubishi Chemical Industries Limited
    Inventors: Ryoji Kikumoto, Harukazu Fukami, Kenichiro Nakao, Mamoru Sugano
  • Patent number: 4684651
    Abstract: Alkylenedioxybenzene derivatives are prepared and found to be useful as pharmaceutical agents, particularly as hypotensives.
    Type: Grant
    Filed: February 26, 1982
    Date of Patent: August 4, 1987
    Assignee: Mitsubishi Chemical Industries Limited
    Inventors: Ryoji Kikumoto, Harukazu Fukami, Kenichiro Nakao, Mamoru Sugano
  • Patent number: 4613598
    Abstract: A piperazine derivative according to the present invention has the following general formula [I]: ##STR1## wherein R.sup.1 is --OH, --OR.sup.3, --SR.sup.3, --SOR.sup.3 or --SO.sub.2 R.sup.3 wherein R.sup.3 is alkyl group having 1 to 3 carbon atoms;R.sup.2 is --SO.sub.2 NH.sub.2, --SO.sub.2 NHR.sup.4, --SO.sub.2 NR.sup.4 R.sup.5, --COOH, --COOR.sup.4, --CONH.sub.2, --CONHR.sup.4, --CONR.sup.4 R.sup.5, --NHCONH.sub.2, --NHCSNH.sub.2, --NHCONHR.sup.4, --NHCOR.sup.4 or --NHSO.sub.2 R.sup.4 wherein R.sup.4 and R.sup.5 are independently alkyl group having 1 to 3 carbon atoms; orR.sup.1 and R.sup.2 together with carbon atoms to which they are attached form ##STR2## Z is --CO-- or --CH(OH)--; Ar is pyridyl or substituted or unsubstituted phenyl; andn is an integer of 3 to 5.An acid addition salt of the piperazine derivative having the above formula [I] is included in the present invention.
    Type: Grant
    Filed: March 6, 1985
    Date of Patent: September 23, 1986
    Assignee: Mitsubishi Chemical Industries Limited
    Inventors: Harukazu Fukami, Shinya Inoue, Issei Nitta, Kenichiro Nakao, Ryoji Kikumoto
  • Patent number: 4599419
    Abstract: (3-Aminopropoxy)bibenzyl derivatives are prepared and found useful as pharmaceutical agents, particularly as inhibitors of platelet aggregation.
    Type: Grant
    Filed: July 9, 1984
    Date of Patent: July 8, 1986
    Assignee: Mitsubishi Chemical Industries, Inc.
    Inventors: Ryoji Kikumoto, Harukazu Fukami, Hiroto Hara, Kunihiro Ninomiya, Mamoru Sugano
  • Patent number: 4485258
    Abstract: (3-Aminopropoxy)bibenzyl derivatives are prepared and found useful as pharmaceutical agents, particularly as inhibitors of platelet aggregation.
    Type: Grant
    Filed: July 29, 1982
    Date of Patent: November 27, 1984
    Assignee: Mitsubishi Chemical Industries Limited
    Inventors: Ryoji Kikumoto, Harukazu Fukami, Hiroto Hara, Kunihiro Ninomiya, Mamoru Sugano
  • Patent number: 4339580
    Abstract: Piperazinylalkoxyindanes and their pharmaceutically acceptable acid addition salts which have anti-anxiety activity and are effective as sedatives.
    Type: Grant
    Filed: June 9, 1980
    Date of Patent: July 13, 1982
    Assignee: Mitsubishi Chemical Industries, Limited
    Inventors: Ryoji Kikumoto, Akihiro Tobe, Harukazu Fukami, Mitsuo Egawa
  • Patent number: 4323568
    Abstract: (Omega-aminoalkoxy)bibenzyls are prepared and found useful as pharmaceutical agents, particularly as inhibitors of platelet aggregation.
    Type: Grant
    Filed: December 6, 1979
    Date of Patent: April 6, 1982
    Assignee: Mitsubishi Chemical Industries Limited
    Inventors: Kyoji Kikumoto, Kunihiro Ninomiya, Harukazu Fukami, Hiroto Hara
  • Patent number: 4310534
    Abstract: 2-(4-aminobutoxy)stilbenes are prepared and found useful as pharmaceutical agents, particularly as anticonvulsants and skeletal muscle relaxants.
    Type: Grant
    Filed: July 30, 1980
    Date of Patent: January 12, 1982
    Assignee: Mitsubishi Chemical Industries Limited
    Inventors: Ryoji Kikumoto, Akihiro Tobe, Harukazu Fukami, Mitsuo Egawa, Kunihiro Ninomiya
  • Patent number: 4284637
    Abstract: 2-(4-aminobutoxy)stilbenes are prepared and found useful as pharmaceutical agents, particularly as anticonvulsants and skeletal muscle relaxants.
    Type: Grant
    Filed: October 1, 1979
    Date of Patent: August 18, 1981
    Assignee: Mitsubishi Chemical Ind., Limited
    Inventors: Ryoji Kikumoto, Akihiro Tobe, Harukazu Fukami, Kunihiro Ninomiya, Mitsuo Egawa
  • Patent number: 4220603
    Abstract: (Omega-aminoalkoxy)bibenzyls are prepared and found useful as pharmaceutical agents, particularly as inhibitors of platelet aggregation.
    Type: Grant
    Filed: September 19, 1978
    Date of Patent: September 2, 1980
    Assignee: Mitsubishi Chemical Industries, Limited
    Inventors: Ryoji Kikumoto, Kunihiro Ninomiya, Harukazu Fukami, Hiroto Hara
  • Patent number: 4217366
    Abstract: 2-(4-aminobutoxy)stilbenes are prepared and found useful as pharmaceutical agents, particularly as anticonvulsants and skeletal muscle relaxants.
    Type: Grant
    Filed: February 14, 1979
    Date of Patent: August 12, 1980
    Assignee: Mitsubishi Chemical Industries, Ltd.
    Inventors: Ryoji Kikumoto, Akihiro Tobe, Harukazu Fukami, Kunihiro Ninomiya, Mitsuo Egawa