Patents by Inventor Masahiko Seto

Masahiko Seto 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: 9585398
    Abstract: A disinfectant comprising the following (a), (b), (c) and (d), but no other microbicidal disinfecting agents intended for microbicidal disinfection: (a) 40 to 90% (w/w) of ethanol, isopropyl alcohol or a mixture thereof; (b) 0.1 to 2% (w/w) of lactic acid; (c) 0.01 to 2% (w/w) of citric acid; and (d) 0.001 to 0.1% (w/w) of a zinc-containing compound which releases zinc ion in solution, relative to the whole disinfectant.
    Type: Grant
    Filed: February 6, 2015
    Date of Patent: March 7, 2017
    Assignee: MARUISHI PHARMACEUTICAL CO., LTD
    Inventors: Kazuki Okamoto, Junji Okunishi, Yutaka Nishihara, Masahiko Seto
  • Publication number: 20150150265
    Abstract: A disinfectant comprising the following (a), (b), (c) and (d), but no other microbicidal disinfecting agents intended for microbicidal disinfection: (a) 40 to 90% (w/w) of ethanol, isopropyl alcohol or a mixture thereof; (b) 0.1 to 2% (w/w) of lactic acid; (c) 0.01 to 2% (w/w) of citric acid; and (d) 0.001 to 0.1% (w/w) of a zinc-containing compound which releases zinc ion in solution, relative to the whole disinfectant.
    Type: Application
    Filed: February 6, 2015
    Publication date: June 4, 2015
    Applicant: MARUISHI PHARMACEUTICAL CO., LTD.
    Inventors: Kazuki OKAMOTO, Junji OKUNISHI, Yutaka NISHIHARA, Masahiko SETO
  • Patent number: 8980313
    Abstract: A disinfectant comprising the following (a), (b), (c) and (d), but no other microbicidal disinfecting agents intended for microbicidal disinfection: (a) 40 to 90% (w/w) of ethanol, isopropyl alcohol or a mixture thereof; (b) 0.1 to 2% (w/w) of lactic acid; (c) 0.01 to 2% (w/w) of citric acid; and (d) 0.001 to 0.1% (w/w) of a zinc-containing compound which releases zinc ion in solution, relative to the whole disinfectant.
    Type: Grant
    Filed: March 4, 2008
    Date of Patent: March 17, 2015
    Assignee: Maruishi Pharmaceutical Co., Ltd.
    Inventors: Kazuki Okamoto, Junji Okunishi, Yutaka Nishihara, Masahiko Seto
  • Publication number: 20100151046
    Abstract: A disinfectant comprising the following (a), (b), (c) and (d), but no other microbicidal disinfecting agents intended for microbicidal disinfection: (a) 40 to 90% (w/w) of ethanol, isopropyl alcohol or a mixture thereof; (b) 0.1 to 2% (w/w) of lactic acid; (c) 0.01 to 2% (w/w) of citric acid; and (d) 0.001 to 0.1% (w/w) of a zinc-containing compound which releases zinc ion in solution, relative to the whole disinfectant.
    Type: Application
    Filed: March 4, 2008
    Publication date: June 17, 2010
    Applicant: MARUISHI PHARMACEUTICAL CO., LTD.
    Inventors: Kazuki Okamoto, Junji Okunishi, Yutaka Nishihara, Masahiko Seto
  • Patent number: 6593370
    Abstract: A topical capsaicin preparation for the treatment of painful cutaneous disorders and neural dysfunction is disclosed. The preparation contains a nonionic, amphoteric or cationic surfactant in an amount effective to eliminate or substantially ameliorate burning pain caused by capsaicin.
    Type: Grant
    Filed: November 12, 1999
    Date of Patent: July 15, 2003
    Assignee: Maruishi Pharmaceutical Co., Ltd.
    Inventors: Takashi Tamura, Urao Kawakami, Yuichi Teratani, Masakazu Yoshimura, Masahiko Seto
  • Publication number: 20020058048
    Abstract: A topical capsaicin preparation for the treatment of painful cutaneous disorders and neural dysfunction is disclosed. The preparation contains a nonionic, amphoteric or cationic surfactant in an amount effective to eliminate or substantially ameliorate burning pain caused by capsaicin.
    Type: Application
    Filed: November 12, 1999
    Publication date: May 16, 2002
    Inventors: TAKASHI TAMURA, URAO KAWAKAMI, YUICHI TERATANI, MASAKAZU YOSHIMURA, MASAHIKO SETO
  • Patent number: 5294706
    Abstract: There is disclosed a process for preparing 1,5-benzothiazepine derivatives of the formula: ##STR1## wherein R.sup.1 is a lower alkyl group, or a salt thereof which comprises subjecting a propionate derivatives of the formula: ##STR2## wherein R.sup.2 is an ester residue and R.sup.1 is the same as defined above, to intramolecular cyclization in the presence of a sulfonic acid compound of the formula:R.sup.3 SO.sub.3 H (III)wherein R.sup.3 is a lower alkyl group or a substituted or unsubstituted phenyl group, in a non-halogenated organic solvent and, if desired, converting the product to a salt thereof.
    Type: Grant
    Filed: November 19, 1992
    Date of Patent: March 15, 1994
    Assignee: Tanabe Seiyaku Co., Ltd.
    Inventors: Tadayuki Koumoto, Hironori Hayashi, Toshiya Kadowaki, Masahiko Seto, Toyonari Oine
  • Patent number: 4053609
    Abstract: A compound of the formula: ##STR1## wherein R.sup.1 is hydrogen or hydroxy, R.sup.2 is a group of the formula: --CO-CH(NH.sub.2)-CH.sub.2 COR.sup.3 or --COCH.sub.2 -CH(NH.sub.2)-COR.sup.3, and R.sup.3 is selected from the group consisting of hydroxy, lower alkylamino, di-lower alkylamino, lower alkoxy and hydroxy-lower alkylamino, or R.sup.3 is amino when R.sup.2 is hydroxy. Several methods of preparing the compound [I] are also disclosed. The compound [I] and a pharmaceutically acceptable salt thereof are useful as antimicrobial agents.
    Type: Grant
    Filed: August 5, 1976
    Date of Patent: October 11, 1977
    Assignee: Tanabe Seiyaku Co., Ltd.
    Inventors: Mitsutaka Kawazu, Mitsuyoshi Wagatsuma, Masahiko Seto, Toshikazu Miyagishima, Totaro Yamaguchi, Satoshi Ohshima