Patents by Inventor Sari Tuominen

Sari Tuominen 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).

  • Acoustic actuator plate structure
    Patent number: 9301055
    Abstract: Acoustic actuator plate structures are used in acoustic applications. The acoustic actuator plate structure according to the invention contains an electret material and comprises a structurally weaker electret layer (1), where the specific resistance of the electret material is at least 10 ?m and the yield point of it is high, and a structurally stronger support structure layer (2), where the plastic region of the support layer material is wider than the plastic region of the electret material. The electret layer (1) can be formed of a material that retains its electret properties extremely well even in high temperatures and humid conditions. This material may be brittle. The support structure layer (2) provides mechanical and structural strength to the acoustic actuator plate structure.
    Type: Grant
    Filed: February 22, 2008
    Date of Patent: March 29, 2016
    Assignee: PANPHONICS OY
    Inventors: Erkki Honkakoski, Antti Kelloniemi, Heini Orhala, Pasi Peltola, Sari Tuominen
  • Acoustic Actuator Plate Structure
    Publication number: 20100008525
    Abstract: Acoustic actuator plate structures are used in acoustic applications. The acoustic actuator plate structure according to the invention contains an electret material and comprises a structurally weaker electret layer (1), where the specific resistance of the electret material is at least 10 ?m and the yield point of it is high, and a structurally stronger support structure layer (2), where the plastic region of the support layer material is wider than the plastic region of the electret material. The electret layer (1) can be formed of a material that retains its electret properties extremely well even in high temperatures and humid conditions. This material may be brittle. The support structure layer (2) provides mechanical and structural strength to the acoustic actuator plate structure.
    Type: Application
    Filed: February 22, 2008
    Publication date: January 14, 2010
    Applicant: PANPHONICS OY
    Inventors: Erkki Honkakoski, Antti Kelloniemi, Heini Orhala, Pasi Peltola, Sari Tuominen