Patents by Inventor Antti Korpela
Antti Korpela 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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Publication number: 20230383144Abstract: According to an example aspect of the present invention, there is provided a method of joining objects of hydrophilic polymeric biomaterials. In the method, an ionic liquid is applied onto the surfaces of the objects; the surfaces are pressed together; and the ionic liquid is removed. The method produces a product that can consist to 100% of biomaterial, with no synthetic polymer or chemicals remaining in the product.Type: ApplicationFiled: August 4, 2023Publication date: November 30, 2023Inventors: Lauri Hauru, Alistair King, Ilkka Kilpeläinen, Antti Korpela, Hannes Orelma
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Patent number: 11753565Abstract: According to an example aspect of the present invention, there is provided a method of joining objects of hydrophilic polymeric biomaterials. In the method, an ionic liquid is applied onto the surfaces of the objects; the surfaces are pressed together; and the ionic liquid is removed. The method produces a product that can consist to 100% of biomaterial, with no synthetic polymer or chemicals remaining in the product.Type: GrantFiled: June 21, 2018Date of Patent: September 12, 2023Assignee: Teknologian tutkimuskeskus VTT OyInventors: Lauri Hauru, Alistair King, Ilkka Kilpeläinen, Antti Korpela, Hannes Orelma
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Patent number: 11267206Abstract: The present invention relates to an improved process for manufacturing an extruded composite product comprising natural fibers and a thermoplastic polymer. According to the present invention, mixing as well as crosslinking takes place inside an extruder. The natural fibers may be provided for example in the form of pulp or wood particles.Type: GrantFiled: December 12, 2018Date of Patent: March 8, 2022Assignee: Stora Enso OYJInventors: Duncan Mayes, Janne Pynnönen, Antti Korpela
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Publication number: 20210403760Abstract: According to an example aspect of the present invention, there is provided a method of joining objects of hydrophilic polymeric biomaterials. In the method, an ionic liquid is applied onto the surfaces of the objects; the surfaces are pressed together; and the ionic liquid is removed. The method produces a product that can consist to 100% of biomaterial, with no synthetic polymer or chemicals remaining in the product.Type: ApplicationFiled: June 21, 2018Publication date: December 30, 2021Inventors: Lauri Hauru, Alistair King, Ilkka Kilpeläinen, Antti Korpela, Hannes Orelma
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Patent number: 10898147Abstract: An X-ray dental imaging system for medical imaging includes a column, a housing coupled to the column, and a lower shelf movably coupled to at least one of the column or the housing.Type: GrantFiled: April 13, 2018Date of Patent: January 26, 2021Assignee: PaloDEx Group OyInventors: Sami Vartiainen, Jorma Savolainen, Markku Huovinen, Wycliffe Raduma, Antti Korpela, Antti Karhunen, Markus Rintamäki, Juho Malin, Saku Leponokka, Kari Läikkö
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Publication number: 20210016520Abstract: The present invention relates to an improved process for manufacturing an extruded composite product comprising natural fibers and a thermoplastic polymer. According to the present invention, mixing as well as crosslinking takes place inside an extruder. The natural fibers may be provided for example in the form of pulp or wood particles.Type: ApplicationFiled: December 12, 2018Publication date: January 21, 2021Applicant: Stora Enso OYJInventors: Duncan Mayes, Janne Pynnönen, Antti Korpela
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Patent number: 10835441Abstract: A patient positioning apparatus for an X-ray dental imaging system includes a head rest and a chair separate from and spaced from the head rest. The chair has a seat portion and a back rest coupled to the seat portion. The chair further includes a locking system that locks a position of the back rest relative to the seat portion.Type: GrantFiled: April 27, 2018Date of Patent: November 17, 2020Assignee: PALODEX GROUP OYInventors: Sami Vartiainen, Jorma Savolainen, Markku Huovinen, Wycliffe Raduma, Antti Korpela, Antti Karhunen, Markus Rintamäki, Juho Malin, Saku Leponokka
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Publication number: 20200288959Abstract: A tip assembly for an intraoral scanner includes a tip support body having a first end, a second, opposite end, and an outer surface located between the first end and the second end. The outer surface defines at least one protrusion or recess. The tip assembly further includes a disposable, flexible mirror strip having a first end, a second, opposite end, and a mirror fixed to the second end. The flexible mirror strip defines at least one protrusion or recess that engages the at least one protrusion or recess of the tip support body to releasably couple the flexible mirror strip to the tip support body. The tip assembly further includes a tip sleeve having a first end and a second, opposite end. The tip sleeve is sized and shaped to slide over at least a portion of both the tip support body and the flexible mirror strip.Type: ApplicationFiled: October 24, 2019Publication date: September 17, 2020Inventors: Antti Lahti, Timo Klemola, Antti Korpela, Jorma Savolainen, Petri Hyypiä
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Publication number: 20190328600Abstract: A patient positioning apparatus for an X-ray dental imaging system includes a head rest and a chair separate from and spaced from the head rest. The chair has a seat portion and a back rest coupled to the seat portion. The chair further includes a locking system that locks a position of the back rest relative to the seat portion.Type: ApplicationFiled: April 27, 2018Publication date: October 31, 2019Inventors: Sami Vartiainen, Jorma Savolainen, Markku Huovinen, Wycliffe Raduma, Antti Korpela, Antti Karhunen, Markus Rintamäki, Juho Malin, Saku Leponokka
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Publication number: 20190313988Abstract: An X-ray dental imaging system for medical imaging includes a column, a housing coupled to the column, and a lower shelf movably coupled to at least one of the column or the housing.Type: ApplicationFiled: April 13, 2018Publication date: October 17, 2019Inventors: Sami Vartiainen, Jorma Savolainen, Markku Huovinen, Wycliffe Raduma, Antti Korpela, Antti Karhunen, Markus Rintamäki, Juho Malin, Saku Leponokka, Kari Läikkö
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Patent number: 9267237Abstract: The invention relates to a method for manufacturing nanostructured paper or board and a novel paper or board. The method comprises providing a liquid suspension of nanocellulose-containing material, forming a web from the suspension, and drying the web in order to form paper or board. According to the invention the water content of the suspension from which the web is formed is 50% or less by weight of liquids. By means of the invention, energy consumption of paper manufacturing can be significantly reduced.Type: GrantFiled: June 7, 2010Date of Patent: February 23, 2016Assignees: UPM-Kymmene Corporation, STORA ENSO OYJInventors: Hans-Peter Hentze, Jenni Sievanen, John Kettle, Artem Kulachenko, Antti Korpela, Jukka Ketoja, Erkki Hellen, Tuomo Hjelt, Jaakko Hiltunen, Eila Turunen, Asko Sneck
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Patent number: 8771551Abstract: A method of protecting wood. According to the method, an aqueous dispersion of alkyl ketene dimer is applied onto the surface of the wood. By means of this treatment, the surface becomes hydrophobic and the contact angle of water in the form of drops on the treated wooden surface exceeds 100°. Such drop-shaped water does not penetrate into the treated surface, nor into for instance a crosscut end of sawn timber. Instead, the water disappears from the surfaces by evaporation.Type: GrantFiled: June 5, 2009Date of Patent: July 8, 2014Assignee: Metsäliitto OsuuskuntaInventor: Antti Korpela
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Patent number: 8449720Abstract: The invention relates to a method of making a paper or paper board, in which method cut pulp is prepared by cutting basic cellulosic fiber pulp at the consistency of at least 25% so that the average fiber length of the basic pulp is decreased by more than 25% and the SR number of the cut pulp is at most 20% higher than that of the basic pulp, and the cut pulp is used as a raw material in the preparation of a stock.Type: GrantFiled: June 17, 2010Date of Patent: May 28, 2013Assignee: Stora Enso OyjInventors: Kalle Ekman, Heini Eskola, Antti Korpela
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Publication number: 20120132380Abstract: The invention relates to a method for manufacturing nanostructured paper or board and a novel paper or board. The method comprises providing a liquid suspension of nanocellulose-containing material, forming a web from the suspension, and drying the web in order to form paper or board. According to the invention the water content of the suspension from which the web is formed is 50% or less by weight of liquids. By means of the invention, energy consumption of paper manufacturing can be significantly reduced.Type: ApplicationFiled: June 7, 2010Publication date: May 31, 2012Applicants: STORA ENSO OYJ, UPM-KYMMENE CORPORATIONInventors: Hans-Peter Hentze, Jenni Sievanen, John Kettle, Artem Kulachenko, Antti Korpela, Jukka Ketoja, Erkki Hellen, Tuomo Hjelt, Jaakko Hiltunen, Eila Turunen, Asko Sneck
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Publication number: 20120132381Abstract: The invention relates to a method for manufacturing nanostructured paper or board and a novel paper or board. The method comprises providing a liquid suspension of nanocellulose-containing material, forming a web from the suspension and drying the web in order to form paper or board. According to the invention, the water content of the suspension at the time of beginning of the drying is 50% or less by weight of liquids so as to form a paper or board having an average pore size between 200 and 400 nm. By means of the invention, very opaque paper, for example for printing applications, can be manufactured with low energy consumption.Type: ApplicationFiled: June 7, 2010Publication date: May 31, 2012Applicants: STORA ENSO OYJ, UPM-KYMMENE CORPORATIONInventors: Hans-Peter Hentze, Jenni Sievanen, John Kettle, Artem Kulachenko, Antti Korpela, Jukka Ketoja, Erkki Hellen, Tuomo Hjelt, Jaakko Hiltunen, Eila Turunen, Asko Sneck
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Publication number: 20120090798Abstract: The invention relates to a method of making a paper or paper board, in which method cut pulp is prepared by cutting basic cellulosic fiber pulp at the consistency of at least 25% so that the average fiber length of the basic pulp is decreased by more than 25% and the SR number of the cut pulp is at most 20% higher than that of the basic pulp, and the cut pulp is used as a raw material in the preparation of a stock.Type: ApplicationFiled: June 17, 2010Publication date: April 19, 2012Applicant: STORA ENSO OYJInventors: Kalle Ekman, Heini Eskola, Antti Korpela
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Publication number: 20090304939Abstract: A method of protecting wood. According to the method, an aqueous dispersion of alkyl ketene dimer is applied onto the surface of the wood. By means of this treatment, the surface becomes hydrophobic and the contact angle of water in the form of drops on the treated wooden surface exceeds 100°. Such drop-shaped water does not penetrate into the treated surface, nor into for instance a crosscut end of sawn timber.Type: ApplicationFiled: June 5, 2009Publication date: December 10, 2009Applicant: METSALIITTO OSUUSKUNTAInventor: Antti Korpela