Patents by Inventor Jukka-pekka Raunio

Jukka-pekka Raunio 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).

  • Method and arrangement for detecting free fibre ends in paper
    Patent number: 9816977
    Abstract: The invention relates to a method and arrangement for detecting free fiber ends in a paper surface. The method comprises illuminating a target sample (6) surface, which comprises free fiber ends, from at least two directions one at the time, with at least one light source (1). Original reflectance images are obtained for the target sample (6) surface with an imaging device (4), and a surface normal is estimated for each image pixel of the original reflectance image. Thus it is possible to reconstruct a reconstructed reflectance image from the estimated surface normals, and to compare the reconstructed reflectance image and the corresponding original reflectance image and to construct a difference image, where the differences represent shadow objects of the free fiber ends in a paper surface.
    Type: Grant
    Filed: May 9, 2014
    Date of Patent: November 14, 2017
    Assignee: KEMIRA OYJ
    Inventors: Jukka-Pekka Raunio, Mikko Makinen, Henry Skoog, Clayton Campbell
  • Method of characterizing creped materials
    Patent number: 9721377
    Abstract: Methods of characterizing the topography of a surface of a creped material, devices for characterizing surface topography of a creped material, computer systems for characterizing surface topography of a creped material, and the like, are disclosed.
    Type: Grant
    Filed: January 4, 2013
    Date of Patent: August 1, 2017
    Assignee: KEMIRA OYJ
    Inventors: Jukka-Pekka Raunio, Mikko Makinen, Henry Skoog
  • METHOD AND ARRANGEMENT FOR DETECTING FREE FIBRE ENDS IN PAPER
    Publication number: 20160084819
    Abstract: The invention relates to a method and arrangement for detecting free fibre ends in a paper surface. The method comprises illuminating a target sample (6) surface, which comprises free fibre ends, from at least two directions one at the time, with at least one light source (1). Original reflectance images are obtained for the target sample (6) surface with an imaging device (4), and a surface normal is estimated for each image pixel of the original reflectance image. Thus it is possible to reconstruct a reconstructed reflectance image from the estimated surface normals, and to compare the reconstructed reflectance image and the corresponding original reflectance image and to construct a difference image, where the differences represent shadow objects of the free fibre ends in a paper surface.
    Type: Application
    Filed: May 9, 2014
    Publication date: March 24, 2016
    Inventors: JUKKA-PEKKA RAUNIO, MIKKO MÄKINEN, HENRY SKOOG, CLAYTON CAMPBELL
  • METHOD OF CHARACTERIZING CREPED MATERIALS
    Publication number: 20140347358
    Abstract: Methods of characterizing the topography of a surface of a creped material, devices for characterizing surface topography of a creped material, computer systems for characterizing surface topography of a creped material, and the like, are disclosed.
    Type: Application
    Filed: January 4, 2013
    Publication date: November 27, 2014
    Inventors: Jukka-pekka Raunio, Mikko Makinen, Henry Skoog