Patents by Inventor Matti Ritamaki
Matti Ritamaki 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: 10276071Abstract: A safety lock (100) comprising a transponder (1) and a shackle (2). The transponder (1) comprises an inlay (10) including an IC (13) and antenna coupling elements (14). The inlay (10) is arranged in a base member (8). The safety lock (100) further comprises a housing (6), wherein the base member (8) comprises a reduction zone (9) the mechanical strength of which is reduced compared to portions of the base member (8) next to said reduction zone (9). The reduction zone (9) is arranged under the IC (13) and/or the antenna coupling elements (14) of the inlay (10). The force striving the shackle (2) from the locked state to the open state is arranged to being transmitted to the reduction zone (9).Type: GrantFiled: February 9, 2016Date of Patent: April 30, 2019Assignee: Confidex OYInventors: Matti Ritamäki, Heikki Ahokas
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Publication number: 20180025673Abstract: A safety lock (100) comprising a transponder (1) and a shackle (2). The transponder (1) comprises an inlay (10) including an IC (13) and antenna coupling elements (14). The inlay (10) is arranged in a base member (8). The safety lock (100) further comprises a housing (6), wherein the base member (8) comprises a reduction zone (9) the mechanical strength of which is reduced compared to portions of the base member (8) next to said reduction zone (9). The reduction zone (9) is arranged under the IC (13) and/or the antenna coupling elements (14) of the inlay (10). The force striving the shackle (2) from the locked state to the open state is arranged to being transmitted to the reduction zone (9).Type: ApplicationFiled: February 9, 2016Publication date: January 25, 2018Inventors: MATTI RITAMÄKI, Heikki Ahokas
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Patent number: 9858521Abstract: An RFID transponder (100), comprising a printable surface (1), an antenna element (2), an IC (3), and a ground plane (4) arranged under the antenna element (2). The ground plane (4) comprises one or more opening(s) (6) through said ground plane (4) for enabling near field communication through the ground plane (4).Type: GrantFiled: October 14, 2014Date of Patent: January 2, 2018Assignee: Confidex OYInventors: Matti Ritamäki, Heikki Ahokas, Miika Pylvänäinen
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Publication number: 20170316299Abstract: An RFID transponder (100), comprising a printable surface (1), an antenna element (2), an IC (3), and a ground plane (4) arranged under the antenna element (2). The ground plane (4) comprises one or more opening(s) (6) through said ground plane (4) for enabling near field communication through the ground plane (4).Type: ApplicationFiled: October 14, 2014Publication date: November 2, 2017Inventors: MATTI RITAMÄKI, Heikki Ahokas, MIIKA PYLVÄNÄINEN
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Patent number: 9076092Abstract: The present application provides a radio frequency identification (RFID) transponder and a method for fabricating the same. The RFID transponder, comprising: a microchip which is arranged to communicating with a reader; a battery which is arranged to provide an electrical power for operating the transponder, and is attached to the microchip by means of a conductive path; an antenna which is arranged to receive and backscatter radio frequency interrogation radiation; and a substrate, on which the microchip, the battery and the antenna are arranged.Type: GrantFiled: May 8, 2009Date of Patent: July 7, 2015Assignee: CONFIDEX LTD.Inventors: Matti Ritamaki, Antti Ruhanen, Jarkko Miettinen
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Patent number: 8794531Abstract: The present invention relates to a radio frequency identification tag which is adapted to work at a frequency between 850 MHz and 950 MHz. The tag may comprise a planar inverted F antenna, a loop antenna, or a dual patch antenna.Type: GrantFiled: July 13, 2007Date of Patent: August 5, 2014Assignee: Confidex OyInventors: Matti Ritamäki, Marko Hanhikorpi, Heikki Ahokas, Lari Kytölä
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Patent number: 8251295Abstract: The present invention relates to an RFID tag comprising a heat-resistant substrate made of a plastic film and capable of withstanding temperatures up to 200° C., an antenna formed on the surface of the substrate, an integrated circuit on a silicon chip electrically connected to the antenna and a joint for attaching the chip to the substrate on that the chip is capable of connecting electrically to the antenna. The joint is made of an anisotropically conductive adhesive capable of withstanding temperatures up to 200° C. and having a thermal expansion coefficient essentially similar to that of the silicon chip.Type: GrantFiled: April 25, 2008Date of Patent: August 28, 2012Assignee: Confidex OyInventors: Matti Ritamaki, Heikki Ahokas, Jarkko Miettinen, Hanna Luoma-Aho
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Publication number: 20120056002Abstract: The present application provides a radio frequency identification (RFID) transponder and a method for fabricating the same. The RFID transponder, comprising: a microchip which is arranged to communicating with a reader; a battery which is arranged to provide an electrical power for operating the transponder, and is attached to the microchip by means of a conductive path; an antenna which is arranged to receive and backscatter radio frequency interrogation radiation; and a substrate, on which the microchip, the battery and the antenna are arranged.Type: ApplicationFiled: May 8, 2009Publication date: March 8, 2012Applicant: CONFIDEX, LTD.Inventors: Matti Ritamaki, Antti Ruhanen, Jarkko Miettinen
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Publication number: 20110248833Abstract: An RFID system comprising: an RFID tag, an exciter, and an RFID reader. The RFID tag is an active RFID tag operating at an UHF band and being connected to an energy source for energizing the RFID tag, the RFID tag further comprising at least one tag antenna for wireless communication at an UHF band with the RFID reader, wherein the RFID tag is configured to have a semi-passive state and a ready state, the semi-passive state being arranged to change into the ready state by an UHF (Ultra High Frequency) wake-up signal received by the tag antenna, and said RFID reader comprising at least one antenna for wireless communication with the tag antenna, the exciter being arranged to generate and send the UHF wake up signal for changing the RFID tag from the semi-passive state to the ready state, and the RFID reader sending and/or receiving data with the RFID tag in the ready state.Type: ApplicationFiled: April 8, 2011Publication date: October 13, 2011Applicant: Confidex OyInventor: Matti Ritamäki
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Patent number: 7994995Abstract: Tuning an antenna circuit that includes an inductance of a resonance circuit, and a component having a component impedance. The antenna circuit includes multiple connection areas for connecting the component to the antenna circuit At least two of the multiple of connection areas are part of the resonance circuit.Type: GrantFiled: February 6, 2006Date of Patent: August 9, 2011Assignee: UPM Raflatac OyInventors: Matti Ritamaki, Heikki Ahokas
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Patent number: 7975414Abstract: This relates to a label to be attached to a surface, the label comprising a transponder. The label comprises a non-adherent flap which contains the transponder. This also relates to a web comprising a backing web and labels, and to a system comprising a surface and a label.Type: GrantFiled: September 2, 2005Date of Patent: July 12, 2011Assignee: UPM Raflatac OyInventors: Matti Ritamäki, Samuli Strömberg, Marko Hanhikorpi, Jarkko Miettinen, Lari Kytölä
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Patent number: 7971336Abstract: The present invention relates to a method for manufacturing products comprising transponders. The method comprises introducing a web comprising on its surface sequential structural modules comprising an impedance matching element and an integrated circuit electrically connected to the impedance matching element, the structural modules having a first distance between each other; cutting the web in such a manner that the sequential structural modules are separated from each other; attaching the structural modules to a product substrate, the sequential structural modules having a second distance between each other, the second distance being longer than the first distance; and attaching the impedance matching elements to antennas, the impedance matching elements and the antennas forming an electrical connection.Type: GrantFiled: May 12, 2006Date of Patent: July 5, 2011Assignee: Confidex OYInventors: Marko Hanhikorpi, Lari Kytola, Jarkko Miettinen, Matti Ritamaki, Juha Ikonen, Heikki Ahokas
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Publication number: 20110148582Abstract: An RFID transponder comprising an RFID module including an IC and a matching and coupling elements, and a plastic enclosure. An electromagnetic transmission line is coupled to the IC, said electromagnetic transmission line capable of making a galvanic, a capacitive or an inductive coupling between the IC and an external metal object so that said external metal object is able to function as an antenna of the RFID transponder.Type: ApplicationFiled: September 4, 2008Publication date: June 23, 2011Applicant: CONFIDEX OYInventor: Matti Ritamaki
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Publication number: 20110017832Abstract: The present invention relates to an RFID tag comprising a heat-resistant substrate (11) made of a plastic film and capable of withstanding temperatures up to 200° C., an antenna (1) formed on the surface of the substrate, an integrated circuit on a silicon chip (6) electrically connected to the antenna and a joint for attaching the chip to the substrate so that the chip is capable of connecting electrically to the antenna. The joint is made of an an isotropically conductive adhesive capable of withstanding temperatures up to 200° C. and having a thermal expansion coefficient essentially similar to that of the silicon chip.Type: ApplicationFiled: April 25, 2008Publication date: January 27, 2011Applicant: Confidex OyInventors: Matti Ritamaki, Heikki Ahokas, Jarkko Miettinen, Hanna Luoma-Aho
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Publication number: 20100213264Abstract: An RFID tag to be attached to an item, and a method. The tag comprises an antenna and an integrated circuit. The RFID tag further comprises a substrate on which the antenna is attached. The substrate is construed to form a stand-off relation between the item and the antenna when buried inside of the material of the item.Type: ApplicationFiled: October 15, 2008Publication date: August 26, 2010Applicant: CONFIDEX OYInventors: Heikki Ahokas, Matti Ritamäki, Marko Hanhikorpi
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Publication number: 20100065647Abstract: The present invention relates to a radio frequency identification tag which is adapted to work at a frequency between 850 MHz and 950 MHz. The tag may comprise a planar inverted F antenna, a loop antenna, or a dual patch antenna.Type: ApplicationFiled: July 13, 2007Publication date: March 18, 2010Applicant: CONFIDEX OYInventors: Matti Ritamaki, Marko Hanhikorpi, Heikki Ahokas, Lari Kytõlã
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Publication number: 20090249611Abstract: The present invention relates to a method for manufacturing products comprising transponders. The method comprises introducing a web comprising on its surface sequential structural modules comprising an impedance matching element and an integrated circuit electrically connected to the impedance matching element, the structural modules having a first distance between each other; cutting the web in such a manner that the sequential structural modules are separated from each other; attaching the structural modules to a product substrate, the sequential structural modules having a second distance between each other, the second distance being longer than the first distance; and attaching the impedance matching elements to antennas, the impedance matching elements and the antennas forming an electrical connection.Type: ApplicationFiled: May 12, 2006Publication date: October 8, 2009Inventors: Marko Hanhikorpi, Lari Kytola, Jarkko Miettinen, Matti Ritamaki, Juha Ikonen, Heikki Ahokas
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Publication number: 20080316129Abstract: Tuning an antenna circuit that includes an inductance of a resonance circuit, and a component having a component impedance. The antenna circuit includes multiple connection areas for connecting the component to the antenna circuit. At least two of the multiple of connection areas are part of the resonance circuit. The tuning can be performed by selecting at least one connection area for the component among the at least two of the multiple connection areas.Type: ApplicationFiled: February 6, 2006Publication date: December 25, 2008Applicant: UPM Raflatac OyInventors: Matti Ritamaki, Heikki Ahokas
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Publication number: 20080213525Abstract: This relates to a label to be attached to a surface, the label comprising a transponder. The label comprises a non-adherent flap which contains the transponder. This also relates to a web comprising a backing web and labels, and to a system comprising a surface and a label.Type: ApplicationFiled: September 2, 2005Publication date: September 4, 2008Inventors: Matti Ritamaki, Samuli Stromberg, Marko Hanhikorpi, Jarkko Miettinen, Lari Kytola