Patents by Inventor Masanao Oya

Masanao Oya 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).

  • Polypeptide derivatives and nucleic acid carriers containing the same
    Publication number: 20040005708
    Abstract: There are disclosed polypeptide derivatives and their pharmaceutically acceptable salts represented by formula (1), as well as their utility as nucleic acid carriers in gene therapy.
    Type: Application
    Filed: November 15, 2002
    Publication date: January 8, 2004
    Inventors: Takeshi Goto, Masaru Nakanishi, Keishi Yonemura, Naoya Oomori, Takashi Yasukouchi, Masanao Oya
  • Nucleic acid carriers and pharmaceutical compositions for gene therapy
    Publication number: 20030148929
    Abstract: A novel nucleic acid carrier and a pharmaceutical composition for gene therapy are disclosed. The nucleic acid carrier of this invention is characterized by containing a polypeptide comprising diaminobutyric acid with a suitable number of residues and/or a pharmaceutically acceptable salt thereof. The nucleic acid carrier of this invention can form a complex with a variety of therapeutic genes that is safe and has extremely low immunogenicity (the pharmaceutical composition of this invention); and it can allow the therapeutic gene to be introduced into cells efficiently and safely whereby high expression of the gene in the cells can be realized.
    Type: Application
    Filed: December 12, 2002
    Publication date: August 7, 2003
    Applicant: Hisamitsu Pharmaceutical Co., Inc.
    Inventors: Takeshi Goto, Keishi Yonemura, Tetsuji Kuwahara, Masanao Oya, Katsuhiko Akiyama