Patents by Inventor Yukiko Hiraiwa

Yukiko Hiraiwa 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).

  • METALLO-B-LACTAMASE INHIBITORS
    Publication number: 20160151322
    Abstract: A new metallo-?-lactamase inhibitor which acts as a medicament for inhibiting the inactivation of ?-lactam antibiotics and recovering anti-bacterial activities is disclosed. The maleic acid derivatives having the general formula (I) have metallo-?-lactamase inhibiting activities. It is possible to recover the anti-bacterial activities of ?-lactam antibiotics against metallo-?-lactamase producing bacteria by combining the compound of the general formula (I) with ?-lactam antibiotics.
    Type: Application
    Filed: December 29, 2015
    Publication date: June 2, 2016
    Inventors: Ken Chikauchi, Mizuyo Ida, Takao Abe, Yukiko Hiraiwa, Akihiro Morinaka, Toshiaki Kudo
  • NOVEL AMINOGLYCOSIDE ANTIBIOTICS
    Publication number: 20160152653
    Abstract: This invention relates to novel aminoglycoside antibiotics, which have potent antimicrobial activity against bacteria, which induce infectious diseases, particularly MRSA, and has no significant nephrotoxicity, and process for producing them. More particularly, the present invention relates to compounds represented by formula (Ia) or their pharmacologically acceptable salts or solvates, or their diastereomer mixtures, antimicrobial agents comprising them, and a process for producing them.
    Type: Application
    Filed: December 30, 2015
    Publication date: June 2, 2016
    Inventors: Yoshihiko KOBAYASHI, Yoshihisa AKIYAMA, Takeshi MURAKAMI, Nobuto MINOWA, Masaki TSUSHIMA, Yukiko HIRAIWA, Shoichi MURAKAMI, Mitsuhiro ABE, Kazushige SASAKI, Shigeru HOSHIKO, Toshiaki MIYAKE, Yoshiaki TAKAHASHI, Daishiro IKEDA
  • Metallo-?-lactamase inhibitors
    Patent number: 9260375
    Abstract: A new metallo-?-lactamase inhibitor which acts as a medicament for inhibiting the inactivation of ?-lactam antibiotics and recovering anti-bacterial activities is disclosed. The maleic acid derivatives having the general formula (I) have metallo-?-lactamase inhibiting activities. It is possible to recover the anti-bacterial activities of ?-lactam antibiotics against metallo-?-lactamase producing bacteria by combining the compound of the general formula (I) with ?-lactam antibiotics.
    Type: Grant
    Filed: November 29, 2011
    Date of Patent: February 16, 2016
    Assignee: Meiji Seika Kaisha, Ltd.
    Inventors: Ken Chikauchi, Mizuyo Ida, Takao Abe, Yukiko Hiraiwa, Akihiro Morinaka, Toshiaki Kudo
  • Aminoglycoside antibiotics
    Patent number: 9260465
    Abstract: This invention relates to novel aminoglycoside antibiotics, which have potent antimicrobial activity against bacteria, which induce infectious diseases, particularly MRSA, and has no significant nephrotoxicity, and process for producing them. More particularly, the present invention relates to compounds represented by formula (Ia) or their pharmacologically acceptable salts or solvates, or their diastereomer mixtures, antimicrobial agents comprising them, and a process for producing them.
    Type: Grant
    Filed: August 20, 2013
    Date of Patent: February 16, 2016
    Assignees: MEIJI SEIKA PHARMA CO., LTD., MICROBIAL CHEMISTRY RESEARCH FOUNDATION
    Inventors: Yoshihiko Kobayashi, Yoshihisa Akiyama, Takeshi Murakami, Nobuto Minowa, Masaki Tsushima, Yukiko Hiraiwa, Shoichi Murakami, Mitsuhiro Abe, Kazushige Sasaki, Shigeru Hoshiko, Toshiaki Miyake, Yoshiaki Takahashi, Daishiro Ikeda
  • NOVEL AMINOGLYCOSIDE ANTIBIOTICS
    Publication number: 20130345411
    Abstract: This invention relates to novel aminoglycoside antibiotics, which have potent antimicrobial activity against bacteria, which induce infectious diseases, particularly MRSA, and has no significant nephrotoxicity, and process for producing them. More particularly, the present invention relates to compounds represented by formula (Ia) or their pharmacologically acceptable salts or solvates, or their diastereomer mixtures, antimicrobial agents comprising them, and a process for producing them.
    Type: Application
    Filed: August 20, 2013
    Publication date: December 26, 2013
    Applicants: MICROBIAL CHEMISTRY RESEARCH FOUNDATION, MEIJI SEIKA PHARMA CO., LTD.
    Inventors: Yoshihiko KOBAYASHI, Yoshihisa AKIYAMA, Takeshi MURAKAMI, Nobuto MINOWA, Masaki TSUSHIMA, Yukiko HIRAIWA, Shoichi MURAKAMI, Mitsuhiro ABE, Kazushige SASAKI, Shigeru HOSHIKO, Toshiaki MIYAKE, Yoshiaki TAKAHASHI, Daishiro IKEDA
  • Aminoglycoside antibiotics
    Patent number: 8541394
    Abstract: This invention relates to novel aminoglycoside antibiotics, which have potent antimicrobial activity against bacteria, which induce infectious diseases, particularly MRSA, and has no significant nephrotoxicity, and process for producing them. More particularly, the present invention relates to compounds represented by formula (Ia) or their pharmacologically acceptable salts or solvates, or their diastereomer mixtures, antimicrobial agents comprising them, and a process for producing them.
    Type: Grant
    Filed: March 7, 2012
    Date of Patent: September 24, 2013
    Assignees: Meiji Seika Pharma Co., Ltd., Microbial Chemistry Research Foundation
    Inventors: Yoshihiko Kobayashi, Yoshihisa Akiyama, Takeshi Murakami, Nobuto Minowa, Masaki Tsushima, Yukiko Hiraiwa, Shoichi Murakami, Mitsuhiro Abe, Kazushige Sasaki, Shigeru Hoshiko, Toshiaki Miyake, Yoshiaki Takahashi, Daishiro Ikeda
  • NOVEL AMINOGLYCOSIDE ANTIBIOTICS
    Publication number: 20120165283
    Abstract: This invention relates to novel aminoglycoside antibiotics, which have potent antimicrobial activity against bacteria, which induce infectious diseases, particularly MRSA, and has no significant nephrotoxicity, and process for producing them. More particularly, the present invention relates to compounds represented by formula (Ia) or their pharmacologically acceptable salts or solvates, or their diastereomer mixtures, antimicrobial agents comprising them, and a process for producing them.
    Type: Application
    Filed: March 7, 2012
    Publication date: June 28, 2012
    Inventors: Yoshihiko Kobayashi, Yoshihisa Akiyama, Takeshi Murakami, Nobuto Minowa, Masaki Tsushima, Yukiko Hiraiwa, Shoichi Murakami, Mitsuhiro Abe, Kazushige Sasaki, Shigeru Hoshiko, Toshiaki Miyake, Yoshiaki Takahashi, Daishiro Ikeda
  • Aminoglycoside antibiotics
    Patent number: 8148504
    Abstract: This invention relates to novel aminoglycoside antibiotics, which have potent antimicrobial activity against bacteria, which induce infectious diseases, particularly MRSA, and has no significant nephrotoxicity, and process for producing them. More particularly, the present invention relates to compounds represented by formula (Ia) or their pharmacologically acceptable salts or solvates, or their diastereomer mixtures, antimicrobial agents comprising them, and a process for producing them.
    Type: Grant
    Filed: June 1, 2007
    Date of Patent: April 3, 2012
    Assignees: Meiji Seika Pharma Co., Ltd., Microbial Chemistry Research Foundation
    Inventors: Yoshihiko Kobayashi, Yoshihisa Akiyama, Takeshi Murakami, Nobuto Minowa, Masaki Tsushima, Yukiko Hiraiwa, Shoichi Murakami, Mitsuhiro Abe, Kazushige Sasaki, Shigeru Hoshiko, Toshiaki Miyake, Yoshiaki Takahashi, Daishiro Ikeda
  • METALLO-BETA-LACTAMASE INHIBITORS
    Publication number: 20120071457
    Abstract: A new metallo-?-lactamase inhibitor which acts as a medicament for inhibiting the inactivation of ?-lactam antibiotics and recovering anti-bacterial activities is disclosed. The maleic acid derivatives having the general formula (I) have metallo-?-lactamase inhibiting activities. It is possible to recover the anti-bacterial activities of ?-lactam antibiotics against metallo-?-lactamase producing bacteria by combining the compound of the general formula (I) with ?-lactam antibiotics.
    Type: Application
    Filed: November 29, 2011
    Publication date: March 22, 2012
    Inventors: Ken Chikauchi, Mizuyo Ida, Takao Abe, Yukiko Hiraiwa, Akihiro Morinaka, Toshiaki Kudo
  • Metallo-?-lactamase inhibitors
    Patent number: 8093294
    Abstract: A new metallo-?-lactamase inhibitor which acts as a medicament for inhibiting the inactivation of ?-lactam antibiotics and recovering anti-bacterial activities is disclosed. The maleic acid derivatives having the general formula (I) have metallo-?-lactamase inhibiting activities. It is possible to recover the anti-bacterial activities of ?-lactam antibiotics against metallo-?-lactamase producing bacteria by combining the compound of the general formula (I) with ?-lactam antibiotics.
    Type: Grant
    Filed: August 10, 2007
    Date of Patent: January 10, 2012
    Assignee: Meiji Seika Kaisha, Ltd.
    Inventors: Ken Chikauchi, Mizuyo Ida, Takao Abe, Yukiko Hiraiwa, Akihiro Morinaka, Toshiaki Kudo
  • Novel aminoglycoside antibiotics
    Publication number: 20090186841
    Abstract: This invention relates to novel aminoglycoside antibiotics, which have potent antimicrobial activity against bacteria, which induce infectious diseases, particularly MRSA, and has no significant nephrotoxicity, and process for producing them. More particularly, the present invention relates to compounds represented by formula (Ia) or their pharmacologically acceptable salts or solvates, or their diastereomer mixtures, antimicrobial agents comprising them, and a process for producing them.
    Type: Application
    Filed: June 1, 2007
    Publication date: July 23, 2009
    Inventors: Yoshihiko Kobayashi, Yoshihisa Akiyama, Takeshi Murakami, Nobuto Minowa, Masaki Tsushima, Yukiko Hiraiwa, Shoichi Murakami, Mitsuhiro Abe, Kazushige Sasaki, Shigeru Hoshiko, Toshiaki Miyake, Yoshiaki Takahashi, Daishiro Ikeda
  • Metallo-beta-lactamase inhibitors
    Publication number: 20080090825
    Abstract: A new metallo-?-lactamase inhibitor which acts as a medicament for inhibiting the inactivation of ?-lactam antibiotics and recovering anti-bacterial activities is disclosed. The maleic acid derivatives having the general formula (I) have metallo-?-lactamase inhibiting activities. It is possible to recover the anti-bacterial activities of ?-lactam antibiotics against metallo-?-lactamase producing bacteria by combining the compound of the general formula (I) with ?-lactam antibiotics.
    Type: Application
    Filed: August 10, 2007
    Publication date: April 17, 2008
    Inventors: Ken Chikauchi, Mizuyo Ida, Takao Abe, Yukiko Hiraiwa, Akihiro Morinaka, Toshiaki Kudo
  • Nitrogen-containing heterocyclic compounds and benzamide compounds and drugs containing the same
    Patent number: 7030120
    Abstract: Disclosed are compounds represented by formula (I) which have triglyceride biosynthesis inhibitory activity in the liver and inhibitory activity against the secretion of apolipoprotein B-containing lipoprotein from the liver and particularly have excellent inhibitory activity against the secretion of apolipoprotein B-containing lipoprotein, are free from side effect of accumulation of lipids in the liver, and are useful for the treatment and prevention of hyperlipidemia and arteriosclerotic diseases.
    Type: Grant
    Filed: June 16, 2004
    Date of Patent: April 18, 2006
    Assignee: Meiji Seika Kaisha, Ltd.
    Inventors: Naoto Ohkura, Yukiko Hiraiwa, Tetsuya Matsushima, Kazue Sasaki, Takehiro Yamamoto, Masaharu Shiotani, Shigeki Suzuki, Yuuko Nakatani, Chizuko Kuroda, Mieko Nagasawa, Kiyoaki Katano
  • Nitrogen-containing heterocyclic compounds and benzamide compounds and drugs containing the same
    Publication number: 20040224959
    Abstract: Disclosed are compounds represented by formula (I) which have triglyceride biosynthesis inhibitory activity in the liver and inhibitory activity against the secretion of apolipoprotein B-containing lipoprotein from the liver and particularly have excellent inhibitory activity against the secretion of apolipoprotein B-containing lipoprotein, are free from side effect of accumulation of lipids in the liver, and are useful for the treatment and prevention of hyperlipidemia and arteriosclerotic diseases.
    Type: Application
    Filed: June 16, 2004
    Publication date: November 11, 2004
    Inventors: Naoto Ohkura, Yukiko Hiraiwa, Tetsuya Matsushima, Kazue Sasaki, Takehiro Yamamoto, Masaharu Shiotani, Shigeki Suzuki, Yuuko Nakatani, Chizuko Kuroda, Mieko Nagasawa, Kiyoaki Katano
  • Nitrogen-containing heterocyclic compounds and benamide compounds and drugs containing the same
    Patent number: 6777414
    Abstract: Disclosed are compounds represented by formula (I) which have triglyceride biosynthesis inhibitory activity in the liver and inhibitory activity against the secretion of apolipoprotein B-containing lipoprotein from the liver and particularly have excellent inhibitory activity against the secretion of apolipoprotein B-containing lipoprotein, are free from side effect of accumulation of lipids in the liver, and are useful for the treatment and prevention of hyperlipidemia and arteriosclerotic diseases.
    Type: Grant
    Filed: October 5, 2001
    Date of Patent: August 17, 2004
    Assignee: Meiji Seika Kaisha, Ltd.
    Inventors: Naoto Ohkura, Yukiko Hiraiwa, Tetsuya Matsushima, Kazue Sasaki, Takehiro Yamamoto, Masaharu Shiotani, Shigeki Suzuki, Yuuko Nakatani, Chizuko Kuroda, Mieko Nagasawa, Kiyoaki Katano
  • Nitrogen-containing heterocyclic compounds and therapeutic agents for hyperlipidemia comprising the same
    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
  • Nitrogen-containing heterocyclic compounds and therapeutic agents for hyperlipidemia comprising the same
    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
  • Nitrogenous heterocyclic compounds and hyperlipemia remedy containing the same
    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