Patents by Inventor Tsunetaka Nakajima

Tsunetaka Nakajima 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).

  • Benzoyl urea compound-albumin complex
    Patent number: 5116949
    Abstract: A benzoyl urea compound-albumin complex comprising a benzoyl urea compound of the formula: ##STR1## wherein X is a halogen atom or a nitro group, Y is a hydrogen atom, a halogen atom, a nitro group or a trifluoromethyl group, Z.sub.1 is a halogen atom or a trifluoromethyl group, Z.sub.2 is a hydrogen atom or a halogen atom and A is CH or a nitrogen atom, and albumin.
    Type: Grant
    Filed: August 31, 1989
    Date of Patent: May 26, 1992
    Assignees: Ishihara Sangyo Kaisha Ltd., The Green Cross Corporation
    Inventors: Tsunetaka Nakajima, Tadao Okamoto, Nobuo Kondo, Masahiro Watanabe, Koichi Yamauchi, Kazumasa Yokoyama, Takahiro Haga, Nobutoshi Yamada, Hideo Sugi, Toru Koyanagi
  • Powdery pharmaceutical composition containing benzoyl urea, a dispersant and silicic acid
    Patent number: 5098907
    Abstract: A powdery pharmaceutical composition comprising a benzoyl urea compound of the formula: ##STR1## wherein X is a halogen atom or a nitro group, Y is a hydrogen atom, a halogen atom, a nitro group or a trifluoromethyl group, Z.sub.1 is a halogen atom or a trifluoromethyl group, Z.sub.2 is a hydrogen atom or a halogen atom, and A is CH or a nitrogen atom, as an active ingredient, a nonionic surfactant as a dispersant, at least one member selected from the group consisting of sugar, sugar-alcohol and a nonionic surfactant as a disintegrant, and anhydrous silicic acid as a fluidizer.
    Type: Grant
    Filed: January 23, 1990
    Date of Patent: March 24, 1992
    Assignees: Ishihara Sangyo Kaisha Ltd., The Green Cross Corporation
    Inventors: Nobuo Kondo, Masahiro Kikuchi, Tsunetaka Nakajima, Masahiro Watanabe, Kouichi Yamauchi, Takahiro Haga, Nobutoshi Yamada, Hideo Sugi, Toru Koyanagi
  • Antiviral agent
    Patent number: 5036072
    Abstract: Use of a benzoyl urea compound of the formula: ##STR1## wherein X is a halogen atom or a nitro group, Y is a hydrogen atom, a halogen atom, a nitro group or a trifluoromethyl group, Z.sub.1 is a halogen atom or a trifluoromethyl group, Z.sub.2 is a hydrogen atom or a halogen atom, and A is CH or a nitrogen atom, as an antiviral agent.
    Type: Grant
    Filed: January 23, 1990
    Date of Patent: July 30, 1991
    Assignee: Ishihara Sangyo Kaisha Ltd.
    Inventors: Tsunetaka Nakajima, Tadao Okamoto, Masahiro Watanabe, Kazumasa Yokoyama
  • Readily absorbed pharmaceutical composition
    Patent number: 5002952
    Abstract: A pharmaceutical composition comprising a benzoyl urea compound having the formula: ##STR1## wherein X is a halogen atom or a nitro group, Y is a hydrogen atom, a halogen atom, a nitro group or a trifluoromethyl group, Z.sub.1 is a halogen atom or a trifluoromethyl group, Z.sub.2 is a hydrogen atom or a halogen atom, and A is a .dbd.CH--group or a nitrogen atom, and a nonionic surfactant.
    Type: Grant
    Filed: July 27, 1989
    Date of Patent: March 26, 1991
    Assignees: Ishihara Sangyo Kaisha Ltd., The Green Cross Corporation
    Inventors: Nobuo Kondo, Tsunetaka Nakajima, Masahiro Watanabe, Kazumasa Yokoyama, Takahiro Haga, Nobutoshi Yamada, Hideo Sugi, Toru Koyanagi
  • Pharmaceutical composition
    Patent number: 4983605
    Abstract: A pharmaceutical composition comprising a benzoyl urea compound (A) selected from the group consisting of a benzoyl urea compound (I) having the formula: ##STR1## wherein X is a halogen atom, a nitro group or a trifluoromethyl group, provided that when Y is a nitro group, X is a halogen atom or a nitro group, Y is a hydrogen atom, a halogen atom, a nitro group or a trifluoromethyl group, Z.sub.1 is a halogen atom or a trifluoromethyl group, Z.sub.2 is a hydrogen atom or a halogen atom, and A is a .dbd.CH-- group or a nitrogen atom, and a benzoyl urea compound (II) having the formula: ##STR2## wherein each of X.sub.1 and X.sub.2 is a hydrogen atom, a halogen atom or a nitro group, provided that when Y is a nitro group, X.sub.
    Type: Grant
    Filed: October 20, 1987
    Date of Patent: January 8, 1991
    Assignees: Ishihara Sangyo Kaisha Ltd., The Green Cross Corporation
    Inventors: Nobuo Kondo, Masahiro Kikuchi, Tsunetaka Nakajima, Masahiro Watanabe, Kazumasa Yokoyama, Takahiro Haga, Nobutoshi Yamada, Hideo Sugi, Toru Koyanagi
  • Benzoyl urea compound
    Patent number: 4904668
    Abstract: A benzoyl urea compound having the formula: ##STR1## wherein X is a halogen atom, a nitro group or a trifluoromethyl group, provided that when Y is a nitro group, X is a halogen atom or a nitro group, Y is a hydrogen atom, a halogen atom, a nitro group or a trifluoromethyl group, Z.sub.1 is a halogen atom or a trifluoromethyl group, Z.sub.2 is a hydrogen atom or a halogen atom, and A is a .dbd.CH-- group or a nitrogen atom, or the formula: ##STR2## wherein each of X.sub.1 is X.sub.2 is a hydrogen atom, a halogen atom or a nitro group, provided that when Y is a nitro group, X.sub.1 is a hydrogen atom, Y is a hydrogen atom, a halogen atom, a nitro group or a trifluoromethyl group, and Z is a hydrogen atom, a halogen atom or a trifluoromethyl group, characterized in that its average particle size is not larger than 1 .mu.m.
    Type: Grant
    Filed: September 25, 1987
    Date of Patent: February 27, 1990
    Assignees: Ishihara Sangyo Kaisha Ltd., The Green Cross Corporation
    Inventors: Nobuo Kondo, Masahiro Kikuchi, Tsunetaka Nakajima, Masahiro Watanabe, Kazumasa Yokoyama, Takahiro Haga, Nobutoshi Yamada, Hideo Sugi, Toru Koyanagi
  • Readily absorbable pharmaceutical composition
    Patent number: 4849425
    Abstract: A pharmaceutical composition comprises a benzoyl urea compound having the formula: ##STR1## wherein X is a nitro group, Y is a chlorine atom, Z.sub.2 is a hydrogen atom, Z.sub.1 is a halogen atom, and A is a nitrogen atom, and at least one member selected from the group consisting of a cyclodextrin, a polyethylene glycol and a refined oil.
    Type: Grant
    Filed: January 30, 1986
    Date of Patent: July 18, 1989
    Assignees: Ishihara Sangyo Kaisha Ltd., The Green Cross Corporation
    Inventors: Nobuo Kondo, Tsunetaka Nakajima, Masahiro Watanabe, Kazumasa Yokoyama, Tadakazu Suyama, Takahiro Haga, Nobutoshi Yamada, Hideo Sugi, Toru Koyanagi
  • Fibronectin preparations
    Patent number: 4740498
    Abstract: A fibronectin preparation in the form of an aqueous solution at least upon use is disclosed. The preparation contains at least one member selected from the group consisting of disaccharides, albumin and nonionic surface active agents as a stabilizer. The preparation has improved water-solubility when in use and high stability in an aqueous solution.
    Type: Grant
    Filed: October 23, 1985
    Date of Patent: April 26, 1988
    Assignee: Green Cross Corporation
    Inventors: Yutaka Hirao, Takao Ohmura, Kazuo Takechi, Tsunetaka Nakajima, Masayuki Nishida
  • Benzoyl urea compounds, process for their production, and antitumorous compositions containing them
    Patent number: 4727077
    Abstract: A benzoyl urea compound having the formula: ##STR1## wherein A is a bromine atom or a chlorine atom.
    Type: Grant
    Filed: January 29, 1986
    Date of Patent: February 23, 1988
    Assignee: Ishihara Sangyo Kaisha Ltd.
    Inventors: Takahiro Haga, Nobutoshi Yamada, Hideo Sugi, Toru Koyanagi, Nobuo Kondo, Tsunetaka Nakajima, Masahiro Watanabe, Kazumasa Yokoyama