Patents by Inventor Pentti Karioja

Pentti Karioja 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).

  • Optoelectronic component and manufacturing method
    Patent number: 6586268
    Abstract: An optoelectronic component and a method of manufacturing such a component. The component includes at least one pixel comprising a first and a second electrode for electric coupling. An optoelectronically active material is between the electrodes. The optoelectronically active material is a hybrid sol-gel glass that is chemically supplemented with a material affecting the optoelectronic properties. The component is manufactured by spreading the optoelectronically active hybrid sol-gel on the first electrode, hardening the hybrid sol-gel glass by radiation, and forming the second electrode on the optoelectronically active hybrid sol-gel glass.
    Type: Grant
    Filed: February 12, 2001
    Date of Patent: July 1, 2003
    Assignee: Valtion Teknillinen Tutkimuskeskus
    Inventors: Harri Kopola, Juha Rantala, Jouko Vähäkangas, Pentti Karioja
  • Wavelength-tunable laser configuration
    Patent number: 6192059
    Abstract: The invention relates to a wavelength-tunable laser configuration. The interspace between a laser source (200) and a control element (202), forming an external cavity, is short and has a length of preferably at most a few hundreds of wavelengths of the laser source (200). Also, the control element (202) is electrically tunable, which means that the control element (202) changes the optical properties of the external cavity with a movement of at least one tuning part (206, 402).
    Type: Grant
    Filed: April 16, 1999
    Date of Patent: February 20, 2001
    Assignees: Valtion Teknillinen Tutkimmuskeskus, Board of Regents on Behalf of Optical Sciences Center
    Inventors: Pentti Karioja, Yakov Sidorin