Patents by Inventor Tetsutaro Niizato

Tetsutaro Niizato 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: 6583144
    Abstract: Disclosed are compounds represented by formula (I) and pharmaceutically acceptable salts and solvates thereof. The compounds can inhibit the biosynthesis of triglycerides in the liver and can inhibit the secretion of lipoprotein containing apolipoprotein B from the liver. Therefore, they are useful for the prevention or treatment of hyperlipidemia (particularly hyper-very-low-density-lipoproteinemia) and arteriosclerotic diseases, such as cardiac infarction, or pancreatitis induced by hyperlipidemia.
    Type: Grant
    Filed: April 23, 2002
    Date of Patent: June 24, 2003
    Assignee: Meiji Seika Kaisha, Ltd.
    Inventors: Naoto Ohkura, Takashi Tsuruoka, Takayuki Usui, Yukiko Hiraiwa, Tetsuya Matsushima, Masaharu Shiotani, Tetsutaro Niizato, Yuuko Nakatani, Shigeki Suzuki, Chidsuko Kuroda, Kiyoaki Katano
  • Publication number: 20020156276
    Abstract: Disclosed are compounds represented by formula (I) and pharmaceutically acceptable salts and solvates thereof. The compounds can inhibit the biosynthesis of triglycerides in the liver and can inhibit the secretion of lipoprotein containing apolipoprotein B from the liver. Therefore, they are useful for the prevention or treatment of hyperlipidemia (particularly hyper-very-low-density-lipoproteinemia) and arteriosclerotic diseases, such as cardiac infarction, or pancreatitis induced by hyperlipidemia.
    Type: Application
    Filed: April 23, 2002
    Publication date: October 24, 2002
    Inventors: Naoto Ohkura, Takashi Tsuruoka, Takayuki Usui, Yukiko Hiraiwa, Tetsuya Matsushima, Masaharu Shiotani, Tetsutaro Niizato, Yuuko Nakatani, Shigeki Suzuki, Chidsuko Kuroda, Kiyoaki Katano
  • Patent number: 6440951
    Abstract: Fosfomycin or a pharmaceutically acceptable salt thereof has been found to have an action of lowering the serum glucose level and is recognized to be useful as an orally administrable remedy for treating diabetes. It has further been found that the serum glucose level-lowering action of fosfomycin or its salt can be enhanced synergistically and significantly when forfomycin is administered in association with vanadyl sulfate and the like. Therefore,the composition comprising fosfomycin or its salt and vanadyl sulfate or the like is useful as an orally administrable remedy for treating diabetes.
    Type: Grant
    Filed: November 26, 2001
    Date of Patent: August 27, 2002
    Assignee: Meiji Seika Kaisha, Ltd.
    Inventors: Tetsutaro Niizato, Masaharu Shiotani, Yoko Shoji
  • Patent number: 6417362
    Abstract: Disclosed are compounds represented by formula (I) and pharmaceutically acceptable salts and solvates thereof. The compounds can inhibit the biosynthesis of triglycerides in the liver and can inhibit the secretion of lipoprotein containing apolipoprotein B from the liver. Therefore, they are useful for the prevention or treatment of hyperlipidemia (particularly hyper-very-low-density-lipoproteinemia) and arteriosclerotic diseases, such as cardiac infarction, or pancreatitis induced by hyperlipidemia.
    Type: Grant
    Filed: November 30, 1999
    Date of Patent: July 9, 2002
    Assignee: Meiji Seika Kaisha, Ltd.
    Inventors: Naoto Ohkura, Takashi Tsuruoka, Takayuki Usui, Yukiko Hiraiwa, Tetsuya Matsushima, Masaharu Shiotani, Tetsutaro Niizato, Yuuko Nakatani, Shigeki Suzuki, Chidsuko Kuroda, Kiyoaki Katano
  • Patent number: 6413946
    Abstract: Fosfomycin or a pharmaceutically acceptable salt thereof has been found to have an action of lowering the serum glucose level and is recognized to be useful as an orally administrable remedy for treating diabetes. It has further been found that the serum glucose level-lowering action of fosfomycin or its salt can be enhanced synergistically and significantly when fosfomycin is administered in association with vanadyl sulfate and the like. Therefore, the composition comprising fosfomycin or its salt and vanadyl sulfate or the like is useful as an orally administrable remedy for treating diabetes.
    Type: Grant
    Filed: March 31, 2000
    Date of Patent: July 2, 2002
    Assignee: Meiji Seika Kaisha, Ltd.
    Inventors: Tetsutaro Niizato, Masaharu Shiotani, Yoko Shoji
  • Publication number: 20020055491
    Abstract: Fosfomycin or a pharmaceutically acceptable salt thereof has been found to have an action of lowering the serum glucose level and is recognized to be useful as an orally administrable remedy for treating diabetes. It has further been found that the serum glucose level-lowering action of fosfomycin or its salt can be enhanced synergistically and significantly when forfomycin is administered in association with vanadyl sulfate and the like. Therefore, the composition comprising fosfomycin or its salt and vanadyl sulfate or the like is useful as an orally administrable remedy for treating diabetes.
    Type: Application
    Filed: November 26, 2001
    Publication date: May 9, 2002
    Inventors: Tetsutaro Niizato, Masaharu Shiotani, Yoko Shoji
  • Patent number: 4316894
    Abstract: A new antibiotic SF-1130-x.sub.3 substance is produced by cultivating a microorganism Streptomyces myxogenes SF-1130 (deposited under FERM-P. 676 and ATCC 31305) in a liquid culture medium under aerobic conditions, and this antibiotic may be isolated from the fermentation broth of said microorganism and is useful as an inhibitor to .alpha.-glucosidase and saccharase. Besides, this antibiotic, when orally given, is useful as a drug for suppressing an elevation in the level of blood sugar in living animals which have taken starch and/or sugars.
    Type: Grant
    Filed: September 9, 1980
    Date of Patent: February 23, 1982
    Assignee: Meiji Seika Kaisha, Ltd.
    Inventors: Shoji Omoto, Jiro Itoh, Tomizo Niwa, Takashi Shomura, Tetsutaro Niizato, Shigeharu Inouye
  • Patent number: 4122171
    Abstract: D-glucaro-1,5-lactam and its pharmaceutically acceptable salts are useful as an agent of protecting against renal failure or damage induced by administration of aminoglycosidic antibiotics.
    Type: Grant
    Filed: April 11, 1977
    Date of Patent: October 24, 1978
    Assignee: Neiji Seika Kaisha, Ltd.
    Inventors: Tetsutaro Niizato, Takashi Tsuruoka, Shigeharu Inouye, Takemi Koeda, Taro Niida