Patents by Inventor Nobuhiro Oi
Nobuhiro Oi 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: 4355038Abstract: .alpha.-Substituted ureido-benzylpenicillanic acids of the formula ##STR1## (wherein R.sup.1, X and Y are as defined in the description) and pharmaceutically acceptable salts thereof, and a bactericidal composition comprising the above penicillanic acid or the salt and a pharmaceutically acceptable carrier are disclosed. The acids and salts thereof have high antibacterial activities against Gram-positive and Gram-negative bacteria, particularly those of the genus Pseudomonas.Type: GrantFiled: July 30, 1981Date of Patent: October 19, 1982Assignee: Chugai Seiyaku Kabushiki KaishaInventors: Nobuhiro Oi, Bunya Aoki, Teizo Shinozaki, Kanji Moro, Toshio Kuroki, Isao Matsunaga, Takao Noto, Toshiyuki Nebashi, Yusuke Harada, Hisao Endo, Takao Kimura, Kana Kojima, Masahiko Matsumoto, Hiroshi Okazaki, Haruki Ogawa, Minoru Shindo
-
Patent number: 4341776Abstract: Cephalosporin derivatives which have an excellent antibacterial action particularly against bacteria belonging to genus Pseudomonas or Serratia and are represented by the formula: ##STR1## wherein R.sub.1 R.sub.2, R.sub.3, R.sub.4, R.sub.5 and n are as defined in the specification, and salts thereof; a process for preparing the same; and an antibacterial preparation containing the same as an active ingredient are disclosed.Type: GrantFiled: March 28, 1980Date of Patent: July 27, 1982Assignee: Chugai Seiyaku Kabushiki KaishaInventors: Nobuhiro Oi, Bunya Aoki, Teizo Shinozaki, Kanji Moro, Isao Matsunaga, Takao Noto, Toshiyuki Nebashi, Yusuke Harada, Hisao Endo, Takao Kimura, Hiroshi Okazaki, Haruki Ogawa, Minoru Shindo
-
Patent number: 4328224Abstract: Cephalosporin derivatives which have an excellent antibacterial action particularly against bacteria belonging to genus Pseudomonas or Serratia and are represented by the formula: ##STR1## wherein R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.5 and n are as defined in the specification, and salts thereof; a process for preparing the same; and an antibacterial preparation containing the same as an active ingredient are disclosed.Type: GrantFiled: March 28, 1980Date of Patent: May 4, 1982Assignee: Chugai Seiyaku Kabushiki KaishaInventors: Nobuhiro Oi, Bunya Aoki, Teizo Shinozaki, Kanji Moro, Isao Matsunaga, Takao Noto, Toshiyuki Nebashi, Yusuke Harada, Hisao Endo, Takao Kimura, Hiroshi Okazaki, Haruki Ogawa, Minoru Shindo
-
Patent number: 4301161Abstract: Cephalosporin derivatives which have an excellent antibacterial action particularly against bacteria belonging to genus Pseudomonas or Serratia and are represented by the formula: ##STR1## wherein R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.5 and n are as defined in the specification, and salts thereof; a process for preparing the same; and an antibacterial preparation containing the same as an active ingredient are disclosed.Type: GrantFiled: March 28, 1980Date of Patent: November 17, 1981Assignee: Chugai Seiyaku Kabushiki KaishaInventors: Nobuhiro Oi, Bunya Aoki, Teizo Shinozaki, Kanji Moro, Isao Matsunaga, Takao Noto, Toshiyuki Nebashi, Yusuke Harada, Hisao Endo, Takao Kimura, Hiroshi Okazaki, Haruki Ogawa, Minoru Shindo
-
Patent number: 4298605Abstract: Cephalosporin derivatives which have an excellent antibacterial action particularly against bacteria belonging to genus Pseudomonas or Serratia and are represented by the formula: ##STR1## wherein R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.5 and n are as defined in the specification, and salts thereof; a process for preparing the same; and an antibacterial preparation containing the same as an active ingredient are disclosed.Type: GrantFiled: June 11, 1979Date of Patent: November 3, 1981Assignee: Chugai Seiyaku Kabushiki KaishaInventors: Nobuhiro Oi, Bunya Aoki, Teizo Shinozaki, Kanji Moro, Isao Matsunaga, Takao Noto, Toshiyuki Nebashi, Yusuke Harada, Hisao Endo, Takao Kimura, Hiroshi Okazaki, Haruki Ogawa, Minoru Shindo
-
Patent number: 4229348Abstract: Penicillanic acid derivatives which have an excellent antibacterial action particularly against bacteria belonging to family Pseudomonas aeruginosa and are represented by the formula ##STR1## wherein R.sub.1, R.sub.2, and R.sub.3 and n are as defined above, and salts thereof; and a process for preparing the same are disclosed.Type: GrantFiled: January 23, 1979Date of Patent: October 21, 1980Assignee: Chugai Seiyaku Kabushiki KaishaInventors: Nobuhiro Oi, Bunya Aoki, Teizo Shinozaki, Kanji Moro, Isao Matsunaga, Takao Noto, Toshiyuki Nebashi, Yusuke Harada, Hisao Endo, Takao Kimura, Hiroshi Okazaki, Haruki Ogawa, Minoru Shindo
-
Patent number: 4092431Abstract: A pharmaceutical composition for prevention and treatment of gastritis and peptic ulcer of mammals including human beings which contains a bis(benzamido)benzene derivative represented by the formula ##STR1## wherein X and Y are as defined hereinbelow, or an acid addition salt thereof, as an active ingredient, and a method of the use thereof are disclosed.Type: GrantFiled: April 28, 1977Date of Patent: May 30, 1978Assignee: Chugai Seiyaku Kabushiki KaishaInventors: Takashi Mori, Sakae Takaku, Nobuhiro Oi, Minoru Shindo, Takeaki Hirano, Shigeyuki Kataoka, Kouji Furuno
-
Patent number: 4058523Abstract: Bis(benzamido)-benzene derivatives having various pharmaceutical activities such as activity for preventing and treating peptic ulcer, peripheral vasodilating action, hypotensive activity and analgesic activity and represented by the formula ##STR1## wherein X, Y, Z, R.sub.1, R.sub.2 and R.sub.3 are as defined hereinafter and a process for preparing the same are disclosed.Type: GrantFiled: September 15, 1976Date of Patent: November 15, 1977Assignee: Chugai Seiyaku Kabushiki KaishaInventors: Takashi Mori, Sakae Takaku, Nobuhiro Oi, Minoru Shindo, Takeaki Hirano, Shigeyuki Kataoka, Kouji Furuno
-
Patent number: 4038416Abstract: A pharmaceutical composition for prevention and treatment of gastritis and peptic ulcer of mammals including human beings which contains a bis(benzamido)-benzene derivative represented by the formula ##STR1## wherein X and Y are as defined hereinbelow or an acid addition salt thereof as an active ingredient, and a method of the use thereof are disclosed.Type: GrantFiled: September 11, 1975Date of Patent: July 26, 1977Assignee: Chugai Seiyaku Kabushiki KaishaInventors: Takashi Mori, Sakae Takaku, Nobuhiro Oi, Minoru Shindo, Takeaki Hirano, Shigeyuki Kataoka, Kouji Furuno