Patents by Inventor Ralf HELLMANN

Ralf HELLMANN 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).

  • Publication number: 20220369455
    Abstract: The invention concerns an electrical connection pad (10?) for providing an electrical connection between components of an electronic system, wherein the electrical connection pad comprises: a metallic layer (12); and a laser induced periodic surface structure (20), LIPSS, formed on an external surface (16) of the electrical connection pad (10) and exposing the metallic layer (12) and a method for correspondingly laser-treating an electrical connection pad (10).
    Type: Application
    Filed: July 22, 2019
    Publication date: November 17, 2022
    Inventors: Stefan Rung, Ralf Hellmann
  • Publication number: 20220054821
    Abstract: One aspect refers to an electrode for a medical device including a monolithic substrate having at least one surface including a continuous pattern, wherein the continuous pattern is formed by at least one set of hollow lines, and wherein the at least one set of hollow lines forms the boundaries of repeating elements. One aspect further relates to a medical device including the electrode according to one embodiment, and to a process for preparing the electrode according to one embodiment.
    Type: Application
    Filed: August 13, 2021
    Publication date: February 24, 2022
    Applicant: Heraeus Deutschland GmbH & Co. KG
    Inventors: Andreas LIESS, Katharina MUSIOL, Matthias MÜLLER, Stefan RUNG, Simon SCHWARZ, Ralf HELLMANN
  • Patent number: 10442133
    Abstract: A method and an apparatus for fabricating a structured object wherein a photo-curing material, which is cured by being irradiated with light, within successive layers is irradiated with light providing energy, which is transformed by absorption to internal energy of the photo-curing material for curing, thereby forming the object. Within each individual layer of the successive layers coarse structures of the object and fine structures of the object are identified. A first light beam is directed, which provides a single photon energy that matches the energy gap of the photo-curing material for absorption, to first focus positions within the photo-curing material. The first focus positions being associated with the coarse structures of the object within a first individual layer of the successive layers, to cure the photo-curing material at the first focus positions thereby forming the coarse structures of the object within the first individual layer.
    Type: Grant
    Filed: August 17, 2018
    Date of Patent: October 15, 2019
    Assignee: Hochschule Fuer Angewandte Wissenschaften Aschaffenburg
    Inventors: Anika Trautmann, Ralf Hellmann
  • Publication number: 20190047224
    Abstract: A method and an apparatus for fabricating a structured object wherein a photo-curing material, which is cured by being irradiated with light, within successive layers is irradiated with light providing energy, which is transformed by absorption to internal energy of the photo-curing material for curing, thereby forming the object. Within each individual layer of the successive layers coarse structures of the object and fine structures of the object are identified. A first light beam is directed, which provides a single photon energy that matches the energy gap of the photo-curing material for absorption, to first focus positions within the photo-curing material. The first focus positions being associated with the coarse structures of the object within a first individual layer of the successive layers, to cure the photo-curing material at the first focus positions thereby forming the coarse structures of the object within the first individual layer.
    Type: Application
    Filed: August 17, 2018
    Publication date: February 14, 2019
    Applicant: HOCHSCHULE FUER ANGEWANDTE WISSENSCHAFTEN ASCHAFFENBURG
    Inventors: Anika TRAUTMANN, Ralf HELLMANN