Patents by Inventor Atsusi Sawada

Atsusi Sawada 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).

  • Supertwist liquid-crystal display
    Patent number: 5714087
    Abstract: The invention relates to improved STN displays of which the nematic liquid crystalline medium comprises compounds of formulae I1, I2, II1 and/or III1 ##STR1## wherein R.sup.3 and R.sup.4 are each independently alkyl with 1 to 8 C atoms, ##STR2## wherein R.sup.1 is alkyl or alkoxy with 1 to 8 C atoms, ##STR3## wherein R2 is oxaalkyl, alkenyl with up to 8 C atoms.
    Type: Grant
    Filed: February 12, 1996
    Date of Patent: February 3, 1998
    Assignee: Merck Patent Gesellschaft Mit Beschrankter Haftung
    Inventors: Axel Pausch, Akihiro Kojima, Matthias Bremer, Hideo Ichinose, Michael Junge, Hiroshi Numata, Volker Reiffenrath, Bernhard Rieger, Atsusi Sawada, Kazuaki Tarumi, Georg Weber