Patents by Inventor Yoshiaki Yamaji

Yoshiaki Yamaji 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).

  • Indan derivative and thromboxane antagonist containing the same
    Patent number: 5409956
    Abstract: The present invention relates to indan derivatives represented by the formula (1) or pharmaceutically acceptable salts thereof: ##STR1## [wherein R.sup.1 represents C1 to C12 alkyl, benzyl, styryl, naphthyl, optionally substituted phenyl or optionally substituted thienyl; R.sup.2 represents carboxyl, C1 to C4 alkoxycarbonyl, ##STR2## Y represents --(CH.sub.2).sub.p -- (wherein p represents an integer of 0 to 5), --CO--(CH.sub.2).sub.q .about., --CH(OH)--(CH.sub.2).sub.q .about., (wherein q represents an integer of 1 to 4, and the symbol .about. represents a linkage to R.sup.2), oxymethylene or ethylene; and n represents an integer of 1 to 4]. The compounds according to the present invention potently antagonize the action of thromboxane A.sub.2, and therefore useful for the treatment and prevention of diseases caused by thromboxane A.sub.2 such as angiosis, vasospasm, asthma and the like.
    Type: Grant
    Filed: August 30, 1993
    Date of Patent: April 25, 1995
    Assignee: Zeria Pharmaceutical Co., Ltd.
    Inventors: Kiyoshi Yoshida, Yoshiaki Yamaji, Tadashi Kurimoto, Ryuichi Sato, Motoki Torizuka
  • Method for manufacturing panel assemblies for automobiles
    Patent number: 4427869
    Abstract: Method is disclosed for manufacturing a panel assembly comprised of an inner panel and an outer panel which are welded together at the peripheral portions thereof.
    Type: Grant
    Filed: September 30, 1982
    Date of Patent: January 24, 1984
    Assignee: Toyo Kogyo Co., Ltd.
    Inventors: Toshio Kimura, Kunitoshi Kataoka, Yoshiaki Yamaji, Hiromi Iwasaki, Shinichi Yamashita