Patents by Inventor Toshiyuki Kamigauchi

Toshiyuki Kamigauchi 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).

  • Microorganism producing terphenyl compounds
    Patent number: 6291231
    Abstract: The present invention is a microorganism which is Aspergillus candidus RF-5762 (FERM BP-5882), wherein said microorganism is capable of producing a compound of the following formula (I): wherein R1 is hydrogen or hydroxy and R2 is hydroxy or methoxy.
    Type: Grant
    Filed: April 17, 2000
    Date of Patent: September 18, 2001
    Assignee: Shionogi & Co., Ltd.
    Inventors: Toshiyuki Kamigauchi, Ryuji Suzuki
  • Antibiotic stalobacins
    Patent number: 6103231
    Abstract: Novel antibiotic stalobacins H-1 and I-1 having physico-chemical properties as shown in Table 4 are provided, which are excellent antibiotics showing marked effects on Gram-positive bacteria.
    Type: Grant
    Filed: December 9, 1997
    Date of Patent: August 15, 2000
    Assignee: Shionogi & Co., Ltd.
    Inventors: Shigeru Matsutani, Tadashi Yoshida, Ryuji Sakazaki, Koichi Matsumoto, Shigeo Yagi, Bunji Kageyama, Yoshimi Kawamura, Toshiyuki Kamigauchi, Susumu Kamata
  • Terphenyl compounds and medicines containing the same
    Patent number: 6087540
    Abstract: The present invention provides a compound of the formula (I): ##STR1## wherein R.sup.1 is hydrogen or hydroxy and R.sup.2 is hydroxy or methoxy, pharmaceutically acceptable salts or hydrates thereof, a process for producing the same, a pharmaceutical composition which comprises the same and a microorganism which belongs to Aspergillus candidus and produces the compound.
    Type: Grant
    Filed: September 3, 1998
    Date of Patent: July 11, 2000
    Assignee: Shionogi & Co., Ltd.
    Inventors: Toshiyuki Kamigauchi, Ryuji Suzuki
  • Sequiterpene derivatives having antiviral activity
    Patent number: 5876984
    Abstract: A compound of the formula (I): ##STR1## or a pharmaceutically acceptable salt, or a hydrate thereof, a process for preparing said compound, and a pharmaceutical composition having antiviral activity which comprise said compound.
    Type: Grant
    Filed: March 20, 1998
    Date of Patent: March 2, 1999
    Assignee: Shionogi & Co., Ltd
    Inventors: Toshiyuki Kamigauchi, Tamio Fujiwara, Hiroyoshi Tani, Yoshimi Kawamura, Isao Horibe
  • Antibiotic stalobacins
    Patent number: 5456910
    Abstract: Novel antibiotic stalobacins A to I having physico-chemical properties as shown in Tables 1 to 4 are provided, which are excellent antibiotics showing marked effects on Gram-positive bacteria.
    Type: Grant
    Filed: May 17, 1994
    Date of Patent: October 10, 1995
    Assignee: Shionogi & Co., Ltd.
    Inventors: Shigeru Matsutani, Tadashi Yoshida, Ryuji Sakazaki, Koichi Matsumoto, Shigeo Yagi, Bunji Kageyama, Yoshimi Kawamura, Toshiyuki Kamigauchi, Susumu Kamata
  • Glycopetide antibiotic PA-45052-B
    Patent number: 5071749
    Abstract: Glycopeptide antibiotics PA-45052 which are produced by Nocardia orientalis PA-45052, show potent activity against gram-positive bacteria, especially against methicillin-resistant bacteria, and stimulate growth of animals.
    Type: Grant
    Filed: March 25, 1988
    Date of Patent: December 10, 1991
    Assignee: Shionogi & Co., Ltd.
    Inventors: Eiji Kondo, Yoshimi Kawamura, Naoki Tsuji, Koichi Matsumoto, Masaaki Kobayashi, Toshiyuki Kamigauchi, Yoshiyuki Hayashi, Takao Konishi