Patents by Inventor Hajime Mura

Hajime Mura 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).

  • Processes for producing a salt of N-guanidino thiourea and 3-amino-5-mercapto-1,2,4-triazole
    Patent number: 5714617
    Abstract: A method for producing 3-amino-5-mercapto-1,2,4-triazole, useful as an intermediate compound for a medicine or pesticide, or the intermediate thereof, a salt of N-guanidino thiourea from aminoguanidine thiocyanate or a thiocyanate and an aminoguanidine compound in the presence of an acid in a polar solvent, or even from hydrazine and cyanamide is disclosed.
    Type: Grant
    Filed: March 1, 1996
    Date of Patent: February 3, 1998
    Assignee: Nippon Carbide Kogyo Kabushiki Kaisha
    Inventors: Takehiko Yoshie, Masanori Sasaki, Hiroshi Shibafuchi, Yasushi Imai, Masahiro Murotani, Kenichi Ishii, Hajime Mura
  • Process for producing 5-aminotetrazole
    Patent number: 5594146
    Abstract: A process for producing 5-aminotetrazole comprising the steps of: reacting cyanamide with hydrazine in a solvent to form a salt of aminoguanidine; adding thereto an acid and then a nitrite to form a salt of diazoguanidine; and cyclizing the salt of diazoguanidine, upon heating, to thereby produce the 5-aminotetrazole, without isolating the intermediate product and also a process for producing 5-aminotetrazole or a metal salt thereof in the form of powder by spray drying.
    Type: Grant
    Filed: February 22, 1995
    Date of Patent: January 14, 1997
    Assignee: Nippon Carbide Kogyo Kabushiki Kaisha
    Inventors: Masahiro Murotani, Hajime Mura, Makoto Takeda, Hiroshi Shibafuchi
  • Medical bandage and method for using the same
    Patent number: 5336162
    Abstract: A medical bandage that permits the support to be easily peeled off from the substrate without the substrate stuck to the wound skin being pulled up. It is composed of a substrate 1, a support 5 consisting of butted two pieces of plastics film having at least one extension part 5a extending beyond the end 1a of the substrate 1, and a releasable strip 8 of plastics adhesive tape stuck to the butting part 6, said adhesive tape having non-adhesive side parts.
    Type: Grant
    Filed: October 8, 1993
    Date of Patent: August 9, 1994
    Assignee: Kyowa Limited
    Inventors: Junzo Ota, Hajime Mura, Toshihiko Kawachi