Patents by Inventor Kenichiro Nakao

Kenichiro Nakao 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: 10369159
    Abstract: [Problem] To provide a therapeutic agent for estrogen-dependent gynecological diseases such as endometriosis, uterine fibroids, and uterus adenomyosis. [Solution] To use an estrogen receptor ?-inhibiting ? partial agonist represented by the formula (a), a pharmaceutically-acceptable salt thereof, or a hydrate of either of the afore-mentioned, as an active ingredient.
    Type: Grant
    Filed: September 21, 2018
    Date of Patent: August 6, 2019
    Assignees: Nobelpharma Co., Ltd., National University Corporation Tottori University
    Inventors: Kenichiro Nakao, Tasuku Harada, Fuminori Taniguchi
  • Publication number: 20190022111
    Abstract: [Problem] To provide a therapeutic agent for estrogen-dependent gynecological diseases such as endometriosis, uterine fibroids, and uterus adenomyosis. [Solution] To use an estrogen receptor ?-inhibiting ? partial agonist represented by the formula (a), a pharmaceutically-acceptable salt thereof, or a hydrate of either of the afore-mentioned, as an active ingredient.
    Type: Application
    Filed: September 21, 2018
    Publication date: January 24, 2019
    Inventors: Kenichiro NAKAO, Tasuku HARADA, Fuminori TANIGUCHI
  • Publication number: 20180200266
    Abstract: [Problem] To provide a therapeutic agent for estrogen-dependent gynecological diseases such as endometriosis, uterine fibroids, and uterus adenomyosis. [Solution] To use an estrogen receptor ?-inhibiting ? partial agonist represented by the formula (a), a pharmaceutically-acceptable salt thereof, or a hydrate of either of the afore-mentioned, as an active ingredient.
    Type: Application
    Filed: July 13, 2016
    Publication date: July 19, 2018
    Inventors: Kenichiro NAKAO, Tasuku HARADA, Fuminori TANIGUCHI
  • Patent number: 5252705
    Abstract: The present invention relates to the peptides consisting of 25-50 amino acid residues and comprising the following peptide sequence:Leu-Met-His-Asn-Leu-Gly-Lys-Ser-Ile-Gln-Asp-Leu-Arg-Arg-Arg-Phe-Phe-Leu-His -His-Leu-Ile-Ala-Glu-Ile (I)and amides and salts thereof. The peptides have stronger inhibitory activity against hPTH when compared with conventional inhibitors, and therefore, they are expected to be useful for the treatment of various diseases associated with calcium or phosphoric acid metabolism such as hypercalcemia and osteoporosis, or diseases associated with PTH and PTHrP.
    Type: Grant
    Filed: December 11, 1991
    Date of Patent: October 12, 1993
    Assignee: Mitsubishi Kasei Corporation
    Inventors: Tatsuhiko Kanmera, Akihisa Mori, Yoshihide Nakao, Kenichiro Nakao
  • 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: 4602009
    Abstract: Novel corticoid 17.alpha.-alkoxycarbonyl carboxylate derivatives are disclosed. These derivatives have strong topical anti-inflammatory activity and extremely weak systemic adverse reactions and are useful for the treatment of acute and chronic eczema, eczema seborrhoicorum, contact dermatitis, atopic dermatitis, asthma, etc.
    Type: Grant
    Filed: August 28, 1984
    Date of Patent: July 22, 1986
    Assignee: Mitsubishi Chemical Industries, Ltd.
    Inventors: Issei Nitta, Akira Maruyama, Kenichiro Nakao, Motoyoshi Miyake, Hiroaki Ueno
  • Patent number: 4585766
    Abstract: Novel 6-oxygenated corticoid 17.alpha.-carbonates are disclosed. These compounds have strong topical anti-inflammatory activity which are accompanied by extremely weak systemic adverse reaction. The present compounds are useful for the treatment of acute and chronic eczema, eczema seborrhoicorum, contact dermatitis, atopic dermatitis, asthma, etc.
    Type: Grant
    Filed: August 28, 1984
    Date of Patent: April 29, 1986
    Assignee: Mitsubishi Chemical Industries Ltd.
    Inventors: Issei Nitta, Kenichiro Nakao, Motoyoshi Miyake, Akira Maruyama, Junko Takashima
  • Patent number: 4427670
    Abstract: Skin preparations containing a phosphatide, a topical corticosteroid, and butylhydroxyanisole and/or butylhydroxytoluene, which may be in the form of an aqueous or oily mixture, non-aqueous, water-soluble base or suspension base. These preparations can be applied to various skin diseases including eczema, lichen, ichthyosis and psoriasis, possess improved therapeutic activities and are stable for a prolonged period of time.
    Type: Grant
    Filed: February 10, 1982
    Date of Patent: January 24, 1984
    Assignee: Mitsubishi Chemical Industries Limited
    Inventors: Kunihiko Ofuchi, Koichiro Oda, Kenichiro Nakao
  • Patent number: 4333927
    Abstract: Skin preparations containing a phosphatide, a topical corticosteroid, and butylhydroxyanisole and/or butylhydroxytoluene, which may be in the form of an aqueous or oily mixture, non-aqueous, water-soluble base or suspension base. These preparations can be applied to various skin diseases including eczema, lichen, ichthyosis and psoriasis, possess improved therapeutic activities and are stable for a prolonged period of time.
    Type: Grant
    Filed: March 13, 1981
    Date of Patent: June 8, 1982
    Assignee: Mitsubishi Chemical Industries, Ltd.
    Inventors: Kunihiko Ofuchi, Koichiro Oda, Kenichiro Nakao