Patents by Inventor Takashi Sano

Takashi Sano 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).

  • Treatment of cancer with carcinostatic and immunostimulating agent containing lysophospholipid and phospholipid
    Patent number: 4372949
    Abstract: A carcinostatic and immunostimulating agent containing a lysophospholipid and a phospholipid. Said carcinostatic and immunostimulating agent is useful for the treatment of cancerous diseases of the mammals including human being. This disclosure concerns such a carcinostatic and immunostimulating agent and a process for preparing the same as well as a method for treating the cancerous diseases by using said agent.
    Type: Grant
    Filed: February 29, 1980
    Date of Patent: February 8, 1983
    Assignee: Toyama Chemical Co., Ltd.
    Inventors: Yutaka Kodama, Kaoru Oyama, Ryusaku Shimizu, Masao Nakabayashi, Yoshifumi Nakashima, Takashi Sano, Masaaki Shibata, Kiyoshi Goden
  • PWM Inverter device
    Patent number: 4367521
    Abstract: An inverter device operating under pulse width modulation (PWM) principle in which chopping pulse is formed by crossing points of a triangle waveform and a function waveform in order that pulse width of the inverter input current decreases towards later half of pulse train in each period of pulse repetition series so as to make the average input current for each one of the pulses substantially constant.
    Type: Grant
    Filed: July 10, 1980
    Date of Patent: January 4, 1983
    Assignee: Toyo Denki Seizo Kabushiki Kaisha
    Inventors: Masakazu Kohata, Takashi Sano, Ichiro Miyashita