Patents by Inventor Ichiro Okudaira

Ichiro Okudaira 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).

  • Suspension of sparingly water-soluble acidic drug
    Patent number: 6231890
    Abstract: A suspension of a sparingly water-soluble acidic drug, especially, a nonsteroidal anti-inflammatory analgesic agent, which is stable for a prolonged period of time and is highly dissolvable, and a process for simply and easily producing the suspension. This suspension has a pH value of 2 to 5 and comprises a sparingly water-soluble acidic drug whose average particle size ranges from 1 to 15 &mgr;m, a polyglycerol fatty acid ester, a water-soluble polyhydric alcohol and water, optionally, together with an inorganic powder having an average particle size of 1 to 15 &mgr;m.
    Type: Grant
    Filed: October 22, 1998
    Date of Patent: May 15, 2001
    Assignee: Taisho Pharmaceutical Co., Ltd.
    Inventors: Mayumi Naito, Hiroshi Nakano, Kazuo Hasegawa, Toshiaki Nakajima, Ichiro Okudaira, Kenji Tsunoda