Patents by Inventor Masazumi Miyakoshi

Masazumi Miyakoshi 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).

  • N-(3-pyridylalkyl)sulfonamide compounds which have useful pharmaceutical activity
    Patent number: 5374641
    Abstract: Illustrative examples of the N-(3-pyridylalkyl)sulfonamide derivative are represented by the following formulae [II] and [III]: ##STR1## The derivatives are available for a thromboxane A.sub.2 production inhibitor, a thromboxane A.sub.2 antagonist, a prostaglandin H.sub.2 antagonist, an anti-thrombus agent, a thrombus-preventing agent and an anti-allergy agent.
    Type: Grant
    Filed: February 24, 1992
    Date of Patent: December 20, 1994
    Assignee: Terumo Kabushiki Kaisha
    Inventors: Hiroyuki Ohnishi, Masazumi Miyakoshi, Masashi Isozaki, Masayuki Fujitake, deceased, Naoya Mikami, Ryohei Yanoshita, Harue Akasofu, Katsuyoshi Sugizaki, Nobuyuki Nakata
  • Phenoxypropylamine derivatives or salts thereof and antiulcer agents containing the same
    Patent number: 5037837
    Abstract: Novel phenoxypropylamine derivative having the formula (I) ##STR1## wherein R.sub.1 and R.sub.2 represent a hydrogen atom, a hydroxy group, a lower alkyl group or a lower alkoxy group, and R.sub.3 and R.sub.4 represent a lower alkyl group, or R.sub.3 and R.sub.4 taken together represent a group having the formula (CH.sub.2).sub.m wherein m represents 4 or 5, and n represents an integer of from 2 to 6 or a pharmaceutically acceptable salt thereof.The compounds are useful as a 5-lipoxygenase inhibitor and an antiulcer agent.
    Type: Grant
    Filed: November 1, 1990
    Date of Patent: August 6, 1991
    Assignee: Terumo Kabushiki Kaisha
    Inventors: Yoshiyuki Shikata, Ryoichi Nanba, Isamu Endo, Masashi Isozaki, Tadashi Okumura, Masazumi Miyakoshi, Shingo Koyama