Patents by Inventor Mikako Miyajima

Mikako Miyajima 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).

  • Spiro compounds or salts thereof and preventives/remedies for autoimmune diseases and AP-1 inhibitors containing the same
    Patent number: 6384065
    Abstract: The spiro compounds of the present invention represented by the general formula: wherein A, R2, R3, R4, R5, R6 and n are as defined in the specification, exhibit an AP-1 activity inhibitory action and, based on the AP-1 inhibitory action, suppresses the expression of a wide variety of genes and are useful as an agent for treating and preventing autoimmune diseases with lessoned side reactions.
    Type: Grant
    Filed: November 8, 2000
    Date of Patent: May 7, 2002
    Assignee: Toyama Chemical Co., Ltd.
    Inventors: Hisaaki Chaki, Yukihiko Aikawa, Mikako Miyajima, Morihiro Nishio, Hiroshi Kuroda, Keiichi Tanaka, Shuichi Hirono, Shunichi Shiozawa
  • Pyridone carboxylic acid derivatives and salts thereof, process for producing the same and antibacterial agents comprising the same
    Patent number: 4990508
    Abstract: This invention relates to a novel pyridone carboxylic acid derivative having a substituted or unsubstituted cyclopropyl group at the 10-position of pyridobenzoxazine, pyridobenzothiazine or pyridoquinoxaline and a salt thereof, a process for the production thereof and an antibacterial agent comprising the same.
    Type: Grant
    Filed: April 13, 1989
    Date of Patent: February 5, 1991
    Assignee: Toyama Chemical Co., Ltd.
    Inventors: Hirokazu Narita, Yozo Todo, Jun Nitta, Hiroyasu Takagi, Fumihiko Iino, Mikako Miyajima, Yoshikazu Fukuoka, Isamu Saikawa
  • Nicotinic acid derivatives
    Patent number: 4851535
    Abstract: This invention relates to a process for industrially producing a 1-substituted aryl-1,4-dihydro-4-oxonaphthyridine derivative and a salt thereof which are useful as an antibacterial agent, and also to intermediates therefor and processes for producing the intermediates.
    Type: Grant
    Filed: June 29, 1987
    Date of Patent: July 25, 1989
    Assignee: Toyama Chemical Co., Ltd.
    Inventors: Yozo Todo, Tetsuo Yamafuji, Katsuyuki Nagumo, Isao Kitayama, Hideyoshi Nagaki, Mikako Miyajima, Yoshinori Konishi, Hirokazu Narita, Shuntaro Takano, Isamu Saikawa
  • Process for producing 1-substituted aryl-1,4-dihydro-4-oxonaphthyridine derivatives, and processes for producing the intermediates
    Patent number: 4704459
    Abstract: This invention relates to a process for industrially producing a 1-substituted aryl-1,4-dihydro-4-oxonaphthyridine derivative and a salt thereof which are useful as an antibacterial agent, and also to intermediates therefor and processes for producing the intermediates.
    Type: Grant
    Filed: January 17, 1986
    Date of Patent: November 3, 1987
    Assignee: Toyama Chemical Co., Ltd.
    Inventors: Yozo Todo, Tetsuo Yamafuji, Katsuyuki Nagumo, Isao Kitayama, Hideyoshi Nagaki, Mikako Miyajima, Yoshinori Konishi, Hirokazu Narita, Shuntaro Takano, Isamu Saikawa