Patents by Inventor Yukka Yrjanainen

Yukka Yrjanainen 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).

  • Electrically erasable writing surface
    Publication number: 20030156099
    Abstract: An electrically erasable writing surface is provided. The writing surface includes a bistable display layer that responds to electrical and mechanical inputs. A touch pad is located above or below the display layer. The writing surface facilitates writing complex characters and increases accuracy by displaying a user input created by a passive stylus.
    Type: Application
    Filed: February 19, 2002
    Publication date: August 21, 2003
    Applicant: Nokia Corporation
    Inventors: Yukka Yrjanainen, Jukka Hautanen, Jari A. Kangas