Patents by Inventor Stein Kuiper
Stein Kuiper 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: 9733466Abstract: An objective lens system for an optical biopsy device has a lens that comprises a first part configured for viewing at a first magnification, and a second part configured for viewing at a second magnification. The second magnification is substantially different from the first magnification. The first magnification enables viewing a larger area of a target and the second magnification enables viewing the target at a cellular level with high sensitivity and specificity. Combining viewing at two different magnifications in a single objective lens results in a compact optical biopsy device.Type: GrantFiled: March 31, 2008Date of Patent: August 15, 2017Assignee: Koninklijke Philips N.V.Inventors: Bernardus Hendrikus Wilhelmus Hendriks, Stein Kuiper
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Patent number: 9537047Abstract: A method for fabricating an LED/phosphor structure is described where an array of blue light emitting diode (LED) dies are mounted on a submount wafer. A phosphor powder is mixed with an organic polymer binder, such as an acrylate or nitrocellulose. The liquid or paste mixture is then deposited over the LED dies or other substrate as a substantially uniform layer. The organic binder is then removed by being burned away in air, or being subject to an O2 plasma process, or dissolved, leaving a porous layer of phosphor grains sintered together. The porous phosphor layer is impregnated with a sol-gel (e.g., a sol-gel of TEOS or MTMS) or liquid glass (e.g., sodium silicate or potassium silicate), also known as water glass, which saturates the porous structure. The structure is then heated to cure the inorganic glass binder, leaving a robust glass binder that resists yellowing, among other desirable properties.Type: GrantFiled: April 18, 2016Date of Patent: January 3, 2017Assignee: Koninklijke Philips N.V.Inventors: Grigoriy Basin, Stein Kuiper, Paul Scott Martin
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Publication number: 20160233377Abstract: A method for fabricating an LED/phosphor structure is described where an array of blue light emitting diode (LED) dies are mounted on a submount wafer. A phosphor powder is mixed with an organic polymer binder, such as an acrylate or nitrocellulose. The liquid or paste mixture is then deposited over the LED dies or other substrate as a substantially uniform layer. The organic binder is then removed by being burned away in air, or being subject to an O2 plasma process, or dissolved, leaving a porous layer of phosphor grains sintered together. The porous phosphor layer is impregnated with a sol-gel (e.g., a sol-gel of TEOS or MTMS) or liquid glass (e.g., sodium silicate or potassium silicate), also known as water glass, which saturates the porous structure. The structure is then heated to cure the inorganic glass binder, leaving a robust glass binder that resists yellowing, among other desirable properties.Type: ApplicationFiled: April 18, 2016Publication date: August 11, 2016Inventors: Grigoriy Basin, Stein Kuiper, Paul Scott Martin
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Patent number: 9379291Abstract: The invention provides a lighting unit comprising a light source and a light conversion layer, wherein the light source is configured to provide light source light and comprises a light emitting diode (LED), wherein the light conversion layer comprises an alkali silicate matrix containing a particulate luminescent material, and wherein the light conversion layer is configured to convert at least part of the light source light into luminescent material light.Type: GrantFiled: December 5, 2012Date of Patent: June 28, 2016Assignee: Koninklijke Philips N.V.Inventors: Stein Kuiper, Grigoriy Basin
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Patent number: 9337398Abstract: A method for fabricating an LED/phosphor structure is described where an array of blue light emitting diode (LED) dies are mounted on a submount wafer. A phosphor powder is mixed with an organic polymer binder, such as an acrylate or nitrocellulose. The liquid or paste mixture is then deposited over the LED dies or other substrate as a substantially uniform layer. The organic binder is then removed by being burned away in air, or being subject to an O2 plasma process, or dissolved, leaving a porous layer of phosphor grains sintered together. The porous phosphor layer is impregnated with a sol-gel (e.g., a sol-gel of TEOS or MTMS) or liquid glass (e.g., sodium silicate or potassium silicate), also known as water glass, which saturates the porous structure. The structure is then heated to cure the inorganic glass binder, leaving a robust glass binder that resists yellowing, among other desirable properties.Type: GrantFiled: March 20, 2013Date of Patent: May 10, 2016Assignee: Koninklijke Philips N.V.Inventors: Grigoriy Basin, Stein Kuiper, Paul Scott Martin
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Patent number: 9128016Abstract: A method of analyzing a sample fluid containing organic microobjects is proposed. The method comprises the steps of: up-concentrating (S1) the microobjects by removing, in a total time T1, a volume V1 of the sample fluid from the upconcentrate sample microobjects; immersing (S2) the microobjects in a transfer fluid, or leaving the microobjects in a remaining portion of the sample fluid, the remaining portion of the sample fluid then providing the transfer fluid; filtering (S3), in a total time T3, a volume V3 of the transfer fluid by a filter, thereby accumulating the microobjects on the filter; and generating (S4) an image of the microobjects accumulated on the filter; wherein the throughput V1/T1 of the step of up-concentrating (S1) is greater than the throughput V1/T1, of the step of filtering (S3). The filter may be a second filter, and the step of up-concentrating (S1) may involve: filtering the sample fluid by a first filter, thereby accumulating the microobjects on the first filter.Type: GrantFiled: April 14, 2010Date of Patent: September 8, 2015Assignee: Koninklijke Philips N.V.Inventors: Bas Hulsken, Stein Kuiper, Sjoerd Stallinga, Bo Joakim Isaksson, Mark W. G. Ponjee, Bart E. G. J. Van Meerbergen, Zeynep S. Unay
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Publication number: 20150221833Abstract: The invention provides a lighting unit comprising a light source and a light conversion layer, wherein the light source is configured to provide light source light and comprises a light emitting diode (LED), wherein the light conversion layer comprises an alkali silicate matrix containing a particulate luminescent material, and wherein the light conversion layer is configured to convert at least part of the light source light into luminescent material light.Type: ApplicationFiled: December 5, 2012Publication date: August 6, 2015Inventors: Stein Kuiper, Grigoriy Basin
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Patent number: 9057729Abstract: The invention relates to a method of determining in vitro the amount of nuclear DNA within a human or animal cell using UV absorption measurement with UV light. The invention also relates to a method for detecting in vitro cancerous cells in a biological sample relying on the aforementioned principles. The invention also relates to an in vitro method of diagnosing or predicting the likely occurrence of cancer in a human or animal subject.Type: GrantFiled: May 14, 2007Date of Patent: June 16, 2015Assignee: Koninklijke Philips N.V.Inventors: Bernardus Hendrikus Wilhelmus Hendriks, Erik Robbert Vossenaar, Gerhard Spekowius, Nijs Cornelis Van Der Vaart, Stein Kuiper
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Patent number: 9041792Abstract: At least two chemically different substances of interest of an unstained biological specimen that for each a substance image is generated, indicating for every region of the image an amount of the substance. A multicolor image is generated on the basis of the substance images.Type: GrantFiled: November 19, 2009Date of Patent: May 26, 2015Assignee: Koninklijke Philips N.V.Inventors: Marinus B. Van Leeuwen, Stein Kuiper
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Publication number: 20150041841Abstract: A method for fabricating an LED/phosphor structure is described where an array of blue light emitting diode (LED) dies are mounted on a submount wafer. A phosphor powder is mixed with an organic polymer binder, such as an acrylate or nitrocellulose. The liquid or paste mixture is then deposited over the LED dies or other substrate as a substantially uniform layer. The organic binder is then removed by being burned away in air, or being subject to an O2 plasma process, or dissolved, leaving a porous layer of phosphor grains sintered together. The porous phosphor layer is impregnated with a sol-gel (e.g., a sol-gel of TEOS or MTMS) or liquid glass (e.g., sodium silicate or potassium silicate), also known as water glass, which saturates the porous structure. The structure is then heated to cure the inorganic glass binder, leaving a robust glass binder that resists yellowing, among other desirable properties.Type: ApplicationFiled: March 20, 2013Publication date: February 12, 2015Inventors: Grigoriy Basin, Stein Kuiper, Paul Scott Martin
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Patent number: 8854739Abstract: The invention relates to an electrowetting-on-dielectric device (200). This is an electro wetting device comprising one or more cells, wherein each cell comprises an electrowetting composition of first and second immiscible fluids, the first fluid being an electrolytic solution (240), a first electrode (230), separated from the electrowetting composition by a dielectric (231), and a voltage source (260) for applying an operating voltage difference between the first electrode (230) and the electrolytic solution to operate the electrowetting device. According to the invention, the first electrode (230) of the electrowetting-on-dielectric device (200) comprises a valve metal, and the electrolytic solution (240) is capable of anodizing the valve metal to form a metal oxide at the operating voltage difference. This provides the electrowetting-on-dielectric device (200) with self-repairing properties thereby preventing breakdown of the dielectric.Type: GrantFiled: September 29, 2010Date of Patent: October 7, 2014Assignee: Koninklijke Philips N.V.Inventors: Stein Kuiper, Johannes Wilhelmus Weekamp
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Patent number: 8764665Abstract: An acoustic probe (100, 300) includes an acoustic transducer (15, 444), and a plurality of variably-refracting acoustic lens elements (10, 210a, 210b, 442) coupled to the acoustic transducer. Each variably-refracting acoustic lens element has at least a pair of electrodes (150, 160) adapted to adjust at least one characteristic of the variably-refracting acoustic lens element in response to a selected voltage applied across the electrodes. In one embodiment, each variably-refracting acoustic lens element includes a cavity, first and second fluid media (141, 142) disposed within the cavity, and the pair of electrodes. The speed of sound of an acoustic wave in the first fluid medium is different than the speed of sound of the acoustic wave in the second fluid medium. The first and second fluid media are immiscible with respect to each other, and the first fluid medium has a substantially different electrical conductivity than the second fluid medium.Type: GrantFiled: April 30, 2008Date of Patent: July 1, 2014Assignee: Koninklijke Philips N.V.Inventors: Christopher Stephen Hall, Chien Ting Chin, Jan Frederik Suijver, Bernardus Hendrikus Wilhelmus Hendriks, Stein Kuiper
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Patent number: 8702612Abstract: A catheter apparatus includes an elongated body having proximal and distal ends, and an acoustic transducer disposed proximate the distal end of the elongated body. A variably-refracting acoustic lens is provided to dynamically adjust a direction associated with an acoustic wave coupled to the acoustic transducer in response to one or more control signals provided thereto.Type: GrantFiled: January 10, 2008Date of Patent: April 22, 2014Assignee: Koninklijke Philips N.V.Inventors: Bernardus Hendrikus Wilhelmus Hendriks, Stein Kuiper, Jan Frederik Suijver, Ronald Tabaksblat, Nijs Cornelis Van Der Vaart, Christopher Stephen Hall, Anna Teresa Fernandez
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Patent number: 8422338Abstract: The disclosure is directed to a system for variably refracting, and is transparent for, ultrasound as well as for light. By choosing liquids with the right optical and acoustical properties, it is possible to variably refract (including focusing and deflecting or steering) ultrasound while not affecting the refraction of light, or vice versa. Two lenses in series, or preferably one lens, allow for variably refracting ultrasound and light.Type: GrantFiled: April 12, 2007Date of Patent: April 16, 2013Assignee: Koninklijke Philips Electronics N.V.Inventors: Stein Kuiper, Bernardus Hendrikus Wilhelmus Hendriks, Jan Frederik Suijver
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Patent number: 8360963Abstract: An imaging system with two modalities has a catheter with an optical lens system situated at an end of the catheter and optically connected to optical guide. The lens system has a numerical aperture which is changeable between a first aperture and a second larger numerical aperture. The imaging system also has an imaging unit for optical imaging with the catheter. First and second imaging modalities are optically connectable with the optical lens system of the catheter. The imaging system can change between imaging in two modes: (1) the first numerical aperture of the optical lens system and the first imaging modality of the imaging unit, and (2) the second numerical aperture of the optical lens system and the second imaging modality of the imaging unit.Type: GrantFiled: December 17, 2007Date of Patent: January 29, 2013Assignee: Koninklijke Philips Electronics N.V.Inventors: Bernardus Hendrikus Wilhelmus Hendriks, Gert T Hooft, Stein Kuiper
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Publication number: 20120324768Abstract: A steam iron (500) comprises a housing (520) that includes a water tank (580), a steam chamber (600) and a pressure equalization conduit (760). The housing (520) includes an airing means (660). The steam iron is further provided with a mechanism for allowing air selectively into the water tank (580). The mechanism comprises a steam trigger (680) that is arranged to close or open the pressure equalization conduit (760) and the airing means (660) inversely. The mechanism may also comprise a spring loaded plunger or an electronic hand sensor.Type: ApplicationFiled: August 8, 2007Publication date: December 27, 2012Applicant: KONINKLIJKE PHILIPS ELECTRONICS N.V.Inventors: Chandra Mohan Janakiraman, Mohankumar Valiyambath Krishnan, Stein Kuiper
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Publication number: 20120200939Abstract: The invention relates to an electrowetting-on-dielectric device (200). This is an electro wetting device comprising one or more cells, wherein each cell comprises an electrowetting composition of first and second immiscible fluids, the first fluid being an electrolytic solution (240), a first electrode (230), separated from the electrowetting composition by a dielectric (231), and a voltage source (260) for applying an operating voltage difference between the first electrode (230) and the electrolytic solution to operate the electrowetting device. According to the invention, the first electrode (230) of the electrowetting-on-dielectric device (200) comprises a valve metal, and the electrolytic solution (240) is capable of anodizing the valve metal to form a metal oxide at the operating voltage difference. This provides the electrowetting-on-dielectric device (200) with self-repairing properties thereby preventing breakdown of the dielectric.Type: ApplicationFiled: September 29, 2010Publication date: August 9, 2012Applicant: KONINKLIJKE PHILIPS ELECTRONICS N.V.Inventors: Stein Kuiper, Johannes Wilhelmus Weekamp
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Patent number: 8233221Abstract: An adjustable fluid type lens system is provided that allows e.g. ultrasound imaging through the lens during adjustment of the lens. The lens includes a container enclosing two immiscible fluids, e.g. water and oil, being in contact with each other at an interface. Incoming waves are then refracted at this interface. The shape of the interface, and thereby the refraction property, is adjustable by adjusting a voltage applied to the lens. The two fluids are selected such that they together exhibit a mechanical damping which is critical or near critical. A control circuit generates the electric voltage for adjusting the refraction from one value to another, the control circuit being arranged to change the electric voltage such that a rate of voltage change is limited to avoid oscillation of the interface, thereby adjusting refraction of incoming waves at the interface in a continuous manner.Type: GrantFiled: December 10, 2008Date of Patent: July 31, 2012Assignee: Koninklijke Philips Electronics N.V.Inventors: Jan Frederik Suijver, Christopher Stephen Hall, Anna Teresa Fernandez, Stein Kuiper, Yan Shi
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Patent number: 8139104Abstract: The present invention relates to an autostereoscopic display device, comprising an imaging layer (9) and a lens layer (10). The lens layer (10) serves to project different content from the imaging layer (9) to the left and right eyes, respectively, of a user. The lens layer (10) comprises lens cells (12), enclosing two fluids (13, 14) with different refractive indices. The shape of the interface between the fluids may be changed using electrowetting, by means of two individually controllable electrodes (21, 22) at the sides of each lens cell (12). The display device further comprises a user head tracking device and means for controlling the lens cell electrodes depending on a detected user head position. This allows the display device to display a correct 3D-image, even if the user moves his head.Type: GrantFiled: April 4, 2005Date of Patent: March 20, 2012Assignee: Koninklijke Philips Electronics N.V.Inventors: Gerardus Johannes Josephus Vos, Stein Kuiper, Bernardus Hendrikus Wilhelmus Hendriks, Bas Jan Emile Van Rens
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Publication number: 20120034623Abstract: A method of analyzing a sample fluid containing organic microobjects is proposed. The method comprises the steps of: up-concentrating (S1) the microobjects by removing, in a total time T1, a volume V1 of the sample fluid from the upconcentrate sample microobjects; immersing (S2) the microobjects in a transfer fluid, or leaving the microobjects in a remaining portion of the sample fluid, the remaining portion of the sample fluid then providing the transfer fluid; filtering (S3), in a total time T3, a volume V3 of the transfer fluid by a filter, thereby accumulating the microobjects on the filter; and generating (S4) an image of the microobjects accumulated on the filter; wherein the throughput V1/T1 of the step of up-concentrating (S1) is greater than the throughput V1/T1, of the step of filtering (S3). The filter may be a second filter, and the step of up-concentrating (S1) may involve: filtering the sample fluid by a first filter, thereby accumulating the microobjects on the first filter.Type: ApplicationFiled: April 14, 2010Publication date: February 9, 2012Applicant: KONINKLIJKE PHILIPS ELECTRONICS N.V.Inventors: Bas Hulsken, Stein Kuiper, Sjoerd Stallinga, Bo Joakim Isaksson, Mark W.G. Ponjee, Bart E.G.J. Van Meerbergen, Zeynep S. Unay