Patents by Inventor Jori Juhani Oravasaari

Jori Juhani Oravasaari 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).

  • Display stack formed to minimize substrate warping
    Patent number: 10618253
    Abstract: In some implementations, an electronic device includes a display stack to display content. The display stack can include a number of substrates coupled using a liquid optically clear adhesive (LOCA). In some implementations, the LOCA can have a modulus of elasticity of no greater than 80,000 Pa. Additionally, the display stack can be formed using a process that includes applying an external force to the display stack by placing the display stack between two fixtures. In an implementation, the external force can be applied while heating the display stack at a temperature of at least 60° C. and cooling the display stack according to a particular cooling rate.
    Type: Grant
    Filed: August 14, 2017
    Date of Patent: April 14, 2020
    Assignee: Amazon Technologies, Inc.
    Inventors: Anoop Menon, Keith Soo Suan Ho, Jori Juhani Oravasaari, Yean Chan Woon, Weihsin Hou
  • LIGHTGUIDE ASSEMBLY FOR ELECTRONIC DISPLAY
    Publication number: 20180088270
    Abstract: A display device using specular reflection, such as an electrowetting display, includes a lightguide having internal optics that direct light propagating through the lightguide onto a reflective surface of the display device so that the light is reflected at an angle that improves the illumination and/or contrast ratio of an image displayed to a viewer. Various cavity shapes for the internal optics provide different manufacturing and operation efficiencies.
    Type: Application
    Filed: September 29, 2016
    Publication date: March 29, 2018
    Inventors: Tero Johannes Tuohioja, Jori Juhani Oravasaari, Kari Juhani Rinko
  • Display stack formed to minimize substrate warping
    Patent number: 9731477
    Abstract: In some implementations, an electronic device includes a display stack to display content. The display stack can include a number of substrates coupled using a liquid optically clear adhesive (LOCA). In some implementations, the LOCA can have a modulus of elasticity of no greater than 80,000 Pa. Additionally, the display stack can be formed using a process that includes applying an external force to the display stack by placing the display stack between two fixtures. In an implementation, the external force can be applied while heating the display stack at a temperature of at least 60° C. and cooling the display stack according to a particular cooling rate.
    Type: Grant
    Filed: August 28, 2013
    Date of Patent: August 15, 2017
    Assignee: Amazon Technologies, Inc.
    Inventors: Anoop Menon, Keith Ho Soo Suan, Jori Juhani Oravasaari, Yean Chan Woon, Weihsin Hou