Patents by Inventor Soemantri Widagdo
Soemantri Widagdo 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: 11435616Abstract: Optical constructions are disclosed. A disclosed optical construction includes a reflective polarizer layer, and an optical film that is disposed on the reflective polarizer layer. The optical film has an optical haze that is not less than about 50%. Substantial portions of each two neighboring major surfaces in the optical construction are in physical contact with each other. The optical construction has an axial luminance gain that is not less than about 1.2.Type: GrantFiled: April 6, 2020Date of Patent: September 6, 2022Assignee: 3M Innovative Properties CompanyInventors: Encai Hao, Fei Lu, William Blake Kolb, Brian W. Ostlie, Adam D. Haag, Michael Benton Free, William D. Coggio, Michael L. Steiner, Soemantri Widagdo, Kui Chen-Ho, Lan H. Liu, Robert F. Kamrath, Scott M. Tapio, John A. Wheatley, Charles D. Hoyle, Michael F. Weber
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Publication number: 20200233268Abstract: Optical constructions are disclosed. A disclosed optical construction includes a reflective polarizer layer, and an optical film that is disposed on the reflective polarizer layer. The optical film has an optical haze that is not less than about 50%. Substantial portions of each two neighboring major surfaces in the optical construction are in physical contact with each other. The optical construction has an axial luminance gain that is not less than about 1.2.Type: ApplicationFiled: April 6, 2020Publication date: July 23, 2020Inventors: Encai HAO, Fei LU, William Blake KOLB, Brian W. OSTLIE, Adam D. HAAG, Michael Benton FREE, William D. COGGIO, Michael L. STEINER, Soemantri WIDAGDO, Kui CHEN-HO, Lan H. LIU, Robert F. KAMRATH, Scott M. TAPIO, John A. WHEATLEY, Charles D. HOYLE, Michael F. WEBER
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Patent number: 10649274Abstract: Optical constructions are disclosed. A disclosed optical construction includes a reflective polarizer layer, and an optical film that is disposed on the reflective polarizer layer. The optical film has an optical haze that is not less than about 50%. Substantial portions of each two neighboring major surfaces in the optical construction are in physical contact with each other. The optical construction has an axial luminance gain that is not less than about 1.2.Type: GrantFiled: September 25, 2015Date of Patent: May 12, 2020Assignee: 3M INNOVATIVE PROPERTIES COMPANYInventors: Encai Hao, Fei Lu, William Blake Kolb, Brian W. Ostlie, Adam D. Haag, Michael Benton Free, William D. Coggio, Michael L. Steiner, Soemantri Widagdo, Kui Chen-Ho, Lan H. Liu, Robert F. Kamrath, Scott M. Tapio, John A. Wheatley, Charles D. Hoyle, Michael F. Weber
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Patent number: 10228507Abstract: Disclosed herein is an optical device having a light source and a viscoelastic lightguide. Light from the light source enters the viscoelastic lightguide and is transported within the lightguide by total internal reflection. The viscoelastic lightguide may comprise a pressure sensitive adhesive. The optical device may be used in a variety of constructions wherein the device emits light being transported within the viscoelastic lightguide. Constructions include those used for signs, markings, illumination devices, display devices, keypad assemblies and tail light assemblies for vehicles.Type: GrantFiled: February 21, 2017Date of Patent: March 12, 2019Assignee: 3M Innovative Properties CompanyInventors: Audrey A. Sherman, Michael A. Meis, Kevin R. Schaffer, Marie A. Boulos, Soemantri Widagdo, Thu-Van T. Tran, Ellen O. Aeling, Patrick J. Yeshe, Wendi J. Winkler
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Publication number: 20170227702Abstract: Disclosed herein is an optical device having a light source and a viscoelastic lightguide. Light from the light source enters the viscoelastic lightguide and is transported within the lightguide by total internal reflection. The viscoelastic lightguide may comprise a pressure sensitive adhesive. The optical device may be used in a variety of constructions wherein the device emits light being transported within the viscoelastic lightguide. Constructions include those used for signs, markings, illumination devices, display devices, keypad assemblies and tail light assemblies for vehicles.Type: ApplicationFiled: February 21, 2017Publication date: August 10, 2017Inventors: Audrey A. Sherman, Michael A. Meis, Kevin R. Schaffer, Marie A. Boulos, Soemantri Widagdo, Thu-Van T. Tran, Ellen O. Aeling, Patrick J. Yeshe, Wendi J. Winkler
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Patent number: 9551475Abstract: Disclosed herein is an optical device having a light source, a viscoelastic lightguide and a retroreflective film suitable for retroreflecting light. Light from the light source enters the viscoelastic lightguide and is transported within the lightguide by total internal reflection. The transported light is extracted from the lightguide and retroreflected at a structured surface of the retroreflective film. The optical device may have a “front lit” or a “back lit” configuration depending on the relative positioning of the lightguide and the retroreflective film. The retroreflective film may include prismatic retroreflective sheeting, holographic film or film structured with diffraction gratings. The optical device may be used, for example, as a sign or marking, a license plate assembly, a tail light assembly for vehicles, a security laminate for protection of documents against tampering, or an illumination device.Type: GrantFiled: February 11, 2014Date of Patent: January 24, 2017Assignee: 3M INNOVATIVE PROPERTIES COMPANYInventors: Audrey A. Sherman, Marie A. Boulos, Kevin R. Schaffer, Michael A. Meis, Thu-Van T. Tran, Ellen O. Aeling, Soemantri Widagdo
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Patent number: 9476637Abstract: An illumination device is disclosed, having a lightguide optically coupled to a light source and a transducer for supplying power to the light source by converting energy received from a remote transmitter. Energy received from a remote transmitter can comprise radiofrequency waves, microwaves, infrared radiation, visible light, ultraviolet light, sunlight, sound waves or heat.Type: GrantFiled: October 20, 2014Date of Patent: October 25, 2016Assignee: 3M INNOVATIVE PROPERTIES COMPANYInventors: Audrey A. Sherman, Kevin R. Schaffer, Michael A. Meis, Soemantri Widagdo
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Publication number: 20160018700Abstract: Optical constructions are disclosed. A disclosed optical construction includes a reflective polarizer layer, and an optical film that is disposed on the reflective polarizer layer. The optical film has an optical haze that is not less than about 50%. Substantial portions of each two neighboring major surfaces in the optical construction are in physical contact with each other. The optical construction has an axial luminance gain that is not less than about 1.2.Type: ApplicationFiled: September 25, 2015Publication date: January 21, 2016Inventors: Encai HAO, Fei LU, William Blake KOLB, Brian W. OSTLIE, Adam D. HAAG, Michael Benton FREE, William D. COGGIO, Michael L. STEINER, Soemantri WIDAGDO, Kui CHEN-HO, Lan H. LIU, Robert F. KAMRATH, Scott M. TAPIO, John A. WHEATLEY, Charles D. HOYLE, Michael F. WEBER
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Publication number: 20150062961Abstract: An illumination device is disclosed, having a lightguide optically coupled to a light source and a transducer for supplying power to the light source by converting energy received from a remote transmitter. Energy received from a remote transmitter can comprise radiofrequency waves, microwaves, infrared radiation, visible light, ultraviolet light, sunlight, sound waves or heat.Type: ApplicationFiled: October 20, 2014Publication date: March 5, 2015Inventors: Audrey A. Sherman, Kevin R. Schaffer, Michael A. Meis, Soemantri Widagdo
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Patent number: 8864362Abstract: An illumination device is disclosed, having a lightguide optically coupled to a light source and a transducer for supplying power to the light source by converting energy received from a remote transmitter. Energy received from a remote transmitter can comprise radiofrequency waves, microwaves, infrared radiation, visible light, ultraviolet light, sunlight, sound waves or heat.Type: GrantFiled: October 29, 2010Date of Patent: October 21, 2014Assignee: 3M Innovative Properties CompanyInventors: Audrey A. Sherman, Kevin R. Schaffer, Michael A. Meis, Soemantri Widagdo
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Publication number: 20140160764Abstract: Disclosed herein is an optical device having a light source, a viscoelastic lightguide and a retroreflective film suitable for retroreflecting light. Light from the light source enters the viscoelastic lightguide and is transported within the lightguide by total internal reflection. The transported light is extracted from the lightguide and retroreflected at a structured surface of the retroreflective film. The optical device may have a “front lit” or a “back lit” configuration depending on the relative positioning of the lightguide and the retroreflective film. The retroreflective film may include prismatic retroreflective sheeting, holographic film or film structured with diffraction gratings. The optical device may be used, for example, as a sign or marking, a license plate assembly, a tail light assembly for vehicles, a security laminate for protection of documents against tampering, or an illumination device.Type: ApplicationFiled: February 11, 2014Publication date: June 12, 2014Applicant: 3M INNOVATIVE PROPERTIES COMPANYInventors: Audrey A. Sherman, Marie A. Boulos, Kevin R. Schaffer, Michael A. Meis, Thu-Van T. Tran, Ellen O. Aeling, Soemantri Widagdo
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Patent number: 8651720Abstract: Disclosed herein is an optical device having a light source, a viscoelastic lightguide and a retroreflective film suitable for retroreflecting light. Light from the light source enters the viscoelastic lightguide and is transported within the lightguide by total internal reflection. The transported light is extracted from the lightguide and retroreflected at a structured surface of the retroreflective film. The optical device may have a “front lit” or a “back lit” configuration depending on the relative positioning of the lightguide and the retroreflective film. The retroreflective film may include prismatic retroreflective sheeting, holographic film or film structured with diffraction gratings. The optical device may be used, for example, as a sign or marking, a license plate assembly, a tail light assembly for vehicles, a security laminate for protection of documents against tampering, or an illumination device.Type: GrantFiled: June 26, 2009Date of Patent: February 18, 2014Assignee: 3M Innovative Properties CompanyInventors: Audrey A. Sherman, Marie A. Boulos, Kevin R. Schaffer, Michael A. Meis, Thu-Van T. Tran, Ellen O. Aeling, Soemantri Widagdo
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Publication number: 20120201049Abstract: An illumination device is disclosed, having a lightguide optically coupled to a light source and a transducer for supplying power to the light source by converting energy received from a remote transmitter. Energy received from a remote transmitter can comprise radiofrequency waves, microwaves, infrared radiation, visible light, ultraviolet light, sunlight, sound waves or heat.Type: ApplicationFiled: October 29, 2010Publication date: August 9, 2012Inventors: Audrey A. Sherman, Kevin R. Schaffer, Michael A. Meis, Soemantri Widagdo
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Publication number: 20120039089Abstract: Optical constructions are disclosed. A disclosed optical construction includes a reflective polarizer layer, and an optical film that is disposed on the reflective polarizer layer. The optical film has an optical haze that is not less than about 50%. Substantial portions of each two neighboring major surfaces in the optical construction are in physical contact with each other. The optical construction has an axial luminance gain that is not less than about 1.2.Type: ApplicationFiled: April 15, 2010Publication date: February 16, 2012Applicant: 3M Innovative Properties CompanyInventors: Encai Hao, Fei Lu, William Blake Kolb, Brian W. Ostlie, Adam D. Haag, Michael Benton Free, William D. Coggio, Michael L. Steiner, Soemantri Widagdo, Kui Chen-Ho, Lan H. Liu, Robert F. Kamrath, Scott M Tapio, John A. Wheatiey, Charles David Hoyle, Michael F Weber
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Publication number: 20110182076Abstract: Disclosed herein is an optical device having a light source, a viscoelastic lightguide and a retroreflective film suitable for retroreflecting light. Light from the light source enters the viscoelastic lightguide and is transported within the lightguide by total internal reflection. The transported light is extracted from the lightguide and retroreflected at a structured surface of the retroreflective film The optical device may have a “front lit” or a “back lit” configuration depending on the relative positioning of the lightguide and the retroreflective film The retroreflective film may include prismatic retroreflective sheeting, holographic film or film structured with diffraction gratings. The optical device may be used, for example, as a sign or marking, a license plate assembly, a tail light assembly for vehicles, a security laminate for protection of documents against tampering, or an illumination device.Type: ApplicationFiled: June 26, 2009Publication date: July 28, 2011Inventors: Audrey A. Sherman, Marie A. Bouios, Kevin R. Schaffer, Michael A. Meis, Thu-Van T. Tran, Ellen O. Aeling, Soemantri Widagdo
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Publication number: 20110176325Abstract: Disclosed herein is an optical device having a light source and a viscoelastic lightguide. Light from the light source enters the viscoelastic lightguide and is transported within the lightguide by total internal reflection. The viscoelastic lightguide may comprise a pressure sensitive adhesive. The optical device may be used in a variety of constructions wherein the device emits light being transported within the viscoelastic lightguide. Constructions include those used for signs, markings, illumination devices, display devices, keypad assemblies and tail light assemblies for vehicles.Type: ApplicationFiled: June 3, 2009Publication date: July 21, 2011Applicant: 3M INNOVATIVE PROPERTIES COMPANYInventors: Audrey A. Sherman, Michael A. Meis, Kevin R. Schaffer, Marie A. Boulos, Soemantri Widagdo, Thu-Van T. Tran, Ellen O. Aeling, Patrick J. Yeshe, Wendi J. Winkler
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Publication number: 20100025879Abstract: A highly filled composite is formed by extruding through a multiple screw extruder a thermoplastic resin and sufficient filler so that an autogranulating extrudate exits the extruder barrel. The extruder is operated without an exit manifold, strand die or breaker plate. The extrudate forms irregularly shaped granules. The granules provide a molding composition that can be used to form highly filled molded articles such as fuel cell separator plates and end plates by compression, injection or compression-injection molding.Type: ApplicationFiled: June 26, 2007Publication date: February 4, 2010Applicant: 3M INNOVATIVE PROPERTIES COMPANYInventors: Soemantri Widagdo, Paul D. Driscoll, Bridget A. Bentz, Mary R. Boone
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Publication number: 20060118989Abstract: A method of making a composite material wherein a molten polymeric material is added to frangible solid particulates within a screw extruder.Type: ApplicationFiled: December 7, 2004Publication date: June 8, 2006Inventors: Madeline Shinbach, Michael Martin, Domasius Nwabunma, Harry Marshall, Lee Olsen, Bridget Bentz, Soemantri Widagdo
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Publication number: 20050158461Abstract: The invention generally relates to methods of embedding secondary particles onto the surface of a primary particle by means of a polymeric material and in particular to methods of making retroreflective elements.Type: ApplicationFiled: January 21, 2004Publication date: July 21, 2005Inventors: Terrance Bescup, Stephen Lieder, Joseph Engebretson, Dale Haunschild, Michael Martin, Steven Lenius, Soemantri Widagdo, Glen Jerry
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Publication number: 20040094750Abstract: A highly filled composite is formed by extruding through a multiple screw extruder a thermoplastic resin and sufficient filler so that an autogranulating extrudate exits the extruder barrel. The extruder is operated without an exit manifold, strand die or breaker plate. The extrudate forms irregularly shaped granules. The granules provide a molding composition that can be used to form highly filled molded articles such as fuel cell separator plates and end plates by compression, injection or compression-injection molding.Type: ApplicationFiled: November 19, 2002Publication date: May 20, 2004Inventors: Soemantri Widagdo, Paul D. Driscoll, Bridget A. Bentz, Mary R. Boone