Patents by Inventor Masatoshi Shimizu

Masatoshi Shimizu 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).

  • Cytochrome P-450MC gene, expression plasmid carrying the said gene, yeasts transformed with the said plasmid and a process for producing cytochrome P-450MC by culturing the said transformant yeasts
    Patent number: 4766068
    Abstract: An expression vector, a plasmid containing yeast alcohol dehydrogenase I promoter and terminator and the gene coding for the rat liver cytochrome P-450MC gene Saccharomyces cerevisiae transformed with the plasmid and process for preparing rat liver cytochrome P-450MC.
    Type: Grant
    Filed: June 5, 1985
    Date of Patent: August 23, 1988
    Assignee: Agency of Industrial Science and Technology
    Inventors: Kenji Oeda, Toshiyuki Sakaki, Hideo Ohkawa, Yoshiyasu Yabusaki, Hiroko Murakami, Keiko Nakamura, Masatoshi Shimizu
  • Plasma display panel driving circuit including apparatus for producing high frequency pulses without the use of clock pulses
    Patent number: 4110663
    Abstract: In a circuit for driving a plasma display panel, a blocking oscillator produces pulses varying between a positive and a negative voltage. Transistors controlled by first selection signals selectively supply first electrodes of the panel with either the complete bipolar pulses, or with only a predetermined one of the positive or negative pulse components. Further transistor switches controlled by second selection signals selectively connect and disconnect second display panel electrodes to ground. A constant voltage is applied to the disconnected second electrodes.A gas discharge occurs at each intersection of the first electrodes supplied with the full bipolar pulse wave and the grounded second electrodes. In accordance with one aspect of the present invention, production of the driving pulses may be suspended either by a preselected one of the first and second selection signals or by coincidence logic operating upon preselected first or second selection signals.
    Type: Grant
    Filed: October 21, 1976
    Date of Patent: August 29, 1978
    Assignee: Nippon Electric Company, Ltd.
    Inventors: Togo Miyazaki, Masatoshi Shimizu