Patents by Inventor Kazuhisa Akiyama

Kazuhisa Akiyama 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).

  • Patent number: 5847159
    Abstract: 1-?.omega.-(3,4-Dihydro-2-naphthalenyl)alkyl!cyclic amine derivative of the formula (I): ##STR1## wherein R.sup.1 and R.sup.2 are H, halogen, OH, alkyl, alkoxy, hydroxymethyl, etc., or R.sup.1 and R.sup.2 combine to form methylenedioxy, trimethylene, etc., R.sup.3 is H, etc., R.sup.4 is H, OH, alkyl, etc., R.sup.5 is H, alkyl, etc., p is integer of from 2 to 6, and q is integer of from 3 to 7, provided that when p is 2, and q is 5, R.sup.1, R.sup.2, R.sup.3, R.sup.4 and R.sup.5 are not simultaneously H, or salts thereof, or N-oxide derivatives thereof, or a process for preparing the same, or pharmaceutical composition containing the same. The compounds of the present invention show potent inhibitory effect on the micturition reflex, and are useful as agents for treatment of frequent urination and urinary incontinence.
    Type: Grant
    Filed: October 14, 1997
    Date of Patent: December 8, 1998
    Assignee: Dainippon Pharmaceutical Co., Ltd.
    Inventors: Naoki Kai, Aki Kanehira, Toshiya Morie, Katsuhiko Hino, Katsuyoshi Kawashima, Isao Shimizu, Kazuhisa Akiyama
  • Patent number: 4801943
    Abstract: A plane antenna assembly comprises a plurality of antenna bases and a signal composing means including amplifiers each connected to output part of each antenna base for composing respective outputs of the antenna bases amplified through the amplifiers, whereby a composite antenna output is obtained in correspondence to the number of the antenna bases and in an excellent S/N ratio.
    Type: Grant
    Filed: January 16, 1987
    Date of Patent: January 31, 1989
    Assignee: Matsushita Electric Works, Ltd.
    Inventors: Yasuo Yabu, Kazuhisa Akiyama, Toshio Abiko, Minoru Kanda, Mikio Komatsu, Hirohumi Ishizaki, Hidetsugu Nunoya, Yasumasa Ogawa, Hiroshi Yokota
  • Patent number: 4703347
    Abstract: An individuality discriminating system wherein analog signals of a human individual picture are converted to digital signals according to brightness of the picture, and such digital signals are stored as individual picture data in an integrated-circuit (IC) card as compressed, with picture elements other than changed ones in the picture treated as zero picture elements, while in using the IC card by its bearer the thus stored data are read out of the card as expanded and analog-converted for display on a monitor. Since the picture data are compressed to remarkably reduce code volume upon the storing in the card, the individuality discrimination can be realized practically precisely and effectively reliably through an investigators's comparison with eyes of the thus displayed picture with a directly viewed or monitored picture of the bearer.
    Type: Grant
    Filed: March 18, 1986
    Date of Patent: October 27, 1987
    Assignee: Matsushita Electric Works, Ltd.
    Inventors: Akira Yasuda, Kazuhisa Akiyama, Toshinari Nakao, Hiroyoshi Yuasa