Patents by Inventor Antti Kemppainen
Antti Kemppainen 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).
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Patent number: 9335834Abstract: The invention relates to providing detection of an exposure to a physical or chemical phenomenon and revealing information as a response to the exposure. A microfluidic device (20) comprises a microchannel (22) filled at least partly with at least one substance and a conductor (29) providing an intersection area (23a-23d) with the microchannel (22). As a result of exposure to the physical or chemical phenomenon directed to the microchannel (22) or to the substance in the microchannel (22) the microfluidic device (20) is arranged to control electromagnetic characteristic of the conductor (29) in the intersection area (23a-23d). An indicator device (45) comprises the microfluidic device (20) that is connected to means for indicating (40) to indicate the exposure to the phenomenon by giving a visual, sound, scent and/or electhcomagnetic indication. Further a method for detecting exposure to a physical or chemical phenomenon and indicating the exposure is presented.Type: GrantFiled: December 31, 2009Date of Patent: May 10, 2016Assignee: TEKNOLOGIAN TUTKIMUSKESKUS VTT OYInventors: Markku Känsäkoski, Antti Kemppainen
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Publication number: 20130017609Abstract: The invention relates to an apparatus (200), which comprises a first substance (220) in a microchannel (210) of the apparatus configured to react to a physical phenomenon or chemical phenomenon directed to the apparatus for providing an indication, which originates from the physical phenomenon or chemical phenomenon directed to the apparatus and indicates an occurrence of the physical phenomenon or chemical phenomenon directed to the apparatus. The invention also relates to a method, which is performed by means of the apparatus and a device, which comprises the apparatus.Type: ApplicationFiled: December 31, 2009Publication date: January 17, 2013Applicant: BASF SEInventors: Markku Känsäkoski, Eero Hurme, Leena Hakalahti, Raimo Korhonen, Antti Kemppainen
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Publication number: 20130002438Abstract: The invention relates to providing detection of an exposure to a physical or chemical phenomenon and revealing information as a response to the exposure. A microfluidic device (20) comprises a microchannel (22) filled at least partly with at least one substance and a conductor (29) providing an intersection area (23a-23d) with the microchannel (22). As a result of exposure to the physical or chemical phenomenon directed to the microchannel (22) or to the substance in the microchannel (22) the microfluidic device (20) is arranged to control electromagnetic characteristic of the conductor (29) in the intersection area (23a-23d). An indicator device (45) comprises the microfluidic device (20) that is connected to means for indicating (40) to indicate the exposure to the phenomenon by giving a visual, sound, scent and/or electhcomagnetic indication. Further a method for detecting exposure to a physical or chemical phenomenon and indicating the exposure is presented.Type: ApplicationFiled: December 31, 2009Publication date: January 3, 2013Applicant: BASF SEInventors: Markku Känsäkoski, Antti Kemppainen
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Patent number: 7490772Abstract: A method for reading a code, which code comprises code elements and the first part of the code elements is substantially conductive and the conductivity of the second part is substantially different from that of the first part, in which method the reader couples to the code in a capacitive manner, in which case the signal level of the signal formed by the reader varies according to the conductivity of the code element, and a correction factor is determined of at least one code element for correcting the signal. In addition, the invention relates to a code reader and electric ink.Type: GrantFiled: December 29, 2004Date of Patent: February 17, 2009Assignee: Nokia CorporationInventors: Antti Kemppainen, Esko Strömmer, Heikki Huomo, Raimo Korhonen
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Publication number: 20080122129Abstract: A micro-optical grid structure is produced on a surface layer of a substrate by an embossing device and method. The embossing device includes an embossing member and a backing member, a temperature adjuster for adjusting the embossing temperature and a pressure adjuster for adjusting the pressure exerted by the embossing member and the backing member to the surface layer of the substrate. An optical measuring device is arranged to produce a diffraction signal dependent on the intensity of light diffracted from the surface of the substrate. The embossing pressure and/or temperature is/are adjusted on the basis of the diffraction signal to produce an optimal and even pattern depth of the grid structure. With the adjustment based on the diffraction signal, it is possible to avoid the sticking of the surface of the substrate to the embossing member due to too high an embossing temperature. When the pattern depth is optimal, collapse of the substrate caused by the too high embossing pressure is avoided.Type: ApplicationFiled: August 5, 2005Publication date: May 29, 2008Inventors: Pekka Koivukunnas, Raimo Korhonen, Markku Mantyla, Antti Kemppainen, Juha Sumen
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Publication number: 20080012151Abstract: A method for manufacturing an electronic thin-film component, an apparatus implementing the method, and an electronic thin-film component manufactured according to the method. A lowermost, galvanically uniform conductive layer of electrically conductive material is first formed on a substantially dielectric substrate, from which lowermost conductive layer conductive areas are galvanically separated from each other to form an electrode pattern. On top of the electrode pattern it is then possible to form one or several upper passive or active layers required in the thin-film component. The separation of the lowermost conductive layer into an electrode pattern takes place by exerting on the lowermost conductive layer a machining operation based on die-cut embossing, i.e.Type: ApplicationFiled: June 18, 2004Publication date: January 17, 2008Applicant: AVANTONE OYInventors: Antti Kemppainen, Terho Kololuoma, Markus Tuomikoski, Raimo Korhonen, Pasi Laakkonen, Pekka Koivukunnas
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Publication number: 20060138233Abstract: A method for reading a code, which code comprises code elements and the first part of the code elements is substantially conductive and the conductivity of the second part is substantially different from that of the first part, in which method the reader couples to the code in a capacitive manner, in which case the signal level of the signal formed by the reader varies according to the conductivity of the code element, and a correction factor is determined of at least one code element for correcting the signal. In addition, the invention relates to a code reader and electric ink.Type: ApplicationFiled: December 29, 2004Publication date: June 29, 2006Inventors: Antti Kemppainen, Esko Strommer, Heikki Huomo, Raimo Korhonen
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Patent number: 6703618Abstract: The invention relates to a method and a measurement device for measuring a suspension which contains wood fibers, the method comprising directing optical radiation at pulp and measuring optical radiation emitted by the pulp. The solution comprises measuring at least one of the following two properties; kappa number and brightness. The solution comprises changing the pulp consistency in a desired range of consistency extending from a desired initial consistency to a desired final consistency. The pulp consistency and the strength of a desired wavelength from the optical radiation are measured in the desired consistency range. Measurement points are modeled with a function of the desired type by fitting the parameters of the function according to the measurement points. Finally at least one of the following two properties of the pulp is determined by means of the modeling function; kappa number and brightness.Type: GrantFiled: July 8, 2002Date of Patent: March 9, 2004Assignee: Metso Automation OyInventors: Pasi Kärki, Antti Kemppainen, Arvo Rahikkala
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Publication number: 20030030005Abstract: The invention relates to a method and a measurement device for measuring a suspension which contains wood fibers, the method comprising directing optical radiation at pulp and measuring optical radiation emitted by the pulp. The solution comprises measuring at least one of the following two properties: kappa number and brightness. The solution comprises changing the pulp consistency in a desired range of consistency extending from a desired initial consistency to a desired final consistency. The pulp consistency and the strength of a desired wavelength from the optical radiation are measured in the desired consistency range. Measurement points are modeled with a function of the desired type by fitting the parameters of the function according to the measurement points. Finally at least one of the following two properties of the pulp is determined by means of the modeling function: kappa number and brightness.Type: ApplicationFiled: July 8, 2002Publication date: February 13, 2003Inventors: Pasi Karki, Antti Kemppainen, Arvo Rahikkala