Patents by Inventor Nobuaki Hanajima

Nobuaki Hanajima 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).

  • External skin treatment agent composition containing isocarbacyclins as active ingredient
    Patent number: 5656663
    Abstract: An external skin treatment agent composition containing an active ingredient comprising a prostacyclin, and/or its optical isomer, having the formula (I): ##STR1## (wherein, R.sup.1 is a hydrogen atom, a straight chain or branched alkyl group of C.sub.1 to C.sub.10, or one equivalent of a cation, R.sup.2 is a substitutable C.sub.1 to C.sub.10 straight chain or branched alkyl group or substitutable C.sub.1 to C.sub.10 straight chain or branched alkenyl group or alkinyl group, R.sup.3 is a straight chain alkyl group of C.sub.1 to C.sub.5, and R.sup.4 and R.sup.5 are independently a hydroxyl group or formula: ##STR2## (where, R.sup.6 is a C.sub.1 to C.sub.5 straight chain or branched alkyl group)) and a carrier.
    Type: Grant
    Filed: December 28, 1994
    Date of Patent: August 12, 1997
    Assignee: Teijin Limited
    Inventors: Atsuo Hazato, Nobuaki Hanajima, Yuji Makino, Toshiaki Takeda, Tamotsu Koyama, Takehisa Hata, Sumihisa Kimura, Saburo Murata
  • External skin treatment agent composition containing prostacyclins as active ingredient
    Patent number: 5530027
    Abstract: An external skin treatment agent composition containing an active ingredient comprising of a prostacyclin, and/or its optical isomer, having the formula (I): ##STR1## (wherein, R.sup.1 is a hydrogen atom, a straight chain or branched alkyl group of C.sub.1 to C.sub.10, or one equivalent of cations, R.sup.2 is (CH.sub.2).sub.2 R.sup.21 or a substitutable C.sub.3 to C.sub.10 cycloalkyl group, where R.sup.21 is a substitutable C.sub.1 to C.sub.10 straight chain or branched alkyl group or substitutable C.sub.2 to C.sub.10 straight chain or branched alkenyl group or alkynyl group, and R.sup.3 and R.sup.4 are independently a hydroxyl group or formula ##STR2## (wherein, R.sup.5 is a C.sub.1 to C.sub.5 straight chain or branched alkyl group)) and a carrier.
    Type: Grant
    Filed: October 3, 1994
    Date of Patent: June 25, 1996
    Assignee: Teijin Limited
    Inventors: Atsuo Hazato, Nobuaki Hanajima, Yuji Makino, Toshiaki Takeda, Tamotsu Koyama
  • Antitumor composition comprising pyrimidine type nucleic acid derivative and 1-[(2-hydroxyethoxy)methyl]uracil derivative
    Patent number: 4916121
    Abstract: An antitumor agent comprising (i) at least one pyrimidine type nucleic acid derivative having the general formula (I): ##STR1## wherein X represents a fluorine atom or a trifluoromethyl group, R.sup.1 and R.sup.2 may be the same or different and represent a hydrogen atom or an acyl group, R.sup.3 represents a hydrogen atom or a hydroxyl group, and(ii) at least one 1-[(2-hydroxyethoxy)methyl]uracil derivative having the general formula (II): ##STR2## wherein Y represents a hydrogen atom, a halogen atom, a methyl group, a benzyl group, a benzyloxybenzyl group, a vinyl group, a nitro group, or an amino group and R.sup.4 represents a hydrogen atom or an acyl group.
    Type: Grant
    Filed: May 7, 1986
    Date of Patent: April 10, 1990
    Assignee: Teijin Limited
    Inventors: Mineo Saneyoshi, Takeo Kawaguchi, Masahiko Saito, Yoshiki Suzuki, Nobuaki Hanajima