Patents by Inventor Kamal Asadi
Kamal Asadi 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: 11033862Abstract: Disclosed is a method of manufacturing a partially freestanding two-dimensional crystal film (16, 16?), the method comprising providing a substrate (10) carrying a catalyst layer (14) for forming the two-dimensional crystal layer on a first surface; forming the two-dimensional crystal film on the catalyst layer; covering at least the two-dimensional crystal film with a protective layer (18); etching a cavity (24) in a second surface of the substrate, the second surface being opposite to the first surface, said cavity terminating on the catalyst layer; etching the exposed part of the catalyst layer from the cavity; and removing the protective layer, thereby obtaining a two-dimensional crystal film that is freestanding over said cavity. A device manufactured in this manner is also disclosed.Type: GrantFiled: April 21, 2014Date of Patent: June 15, 2021Assignee: Koninklijke Philips N.V.Inventors: Kamal Asadi, Johan Hendrik Klootwijk
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Patent number: 10094537Abstract: The invention provides a color conversion arrangement, a lighting unit, a solid state light emitter package, a luminaire and a specific use of a graphene layer. A color conversion arrangement (140) with the first aspect comprises a first luminescent layer (110), a supporting layer (106) and a first graphene layer (108). The color conversion arrangement (140) is for converting light of a first color to light of another color. The first luminescent layer (110) comprises a first luminescent material which absorbs a portion of light of a first spectral distribution comprising the first color and converts at least a portion of the absorbed light towards light of a second spectral distribution. The supporting layer (106) supports the luminescent layer (110). The first graphene layer (108) thermally conducts heat in a lateral direction such that temperature differences in the color conversion arrangement (140) are reduced. Different arrangements of the layers of the color conversion arrangement (140) are provided.Type: GrantFiled: December 2, 2013Date of Patent: October 9, 2018Assignee: PHILIPS LIGHTING HOLDING B.V.Inventors: Kamal Asadi, Dagobert Michel De Leeuw, Johannes Franciscus Maria Cillessen, Manuela Lunz
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Publication number: 20170256676Abstract: The invention provides a light emitting semiconductor device comprising a zinc magnesium oxide based layer as active layer, wherein the zinc magnesium oxide based layer comprises an aluminum doped zinc magnesium oxide layer having the nominal composition Zn1-xMgxO with 1-350 ppm Al, wherein x is in the range of 0<x?0.3. The invention further provides a method for the production of such aluminum doped zinc magnesium oxide, the method comprising heat treating a composition comprising Zn, Mg and Al with a predetermined composition at elevated temperatures, and subsequently annealing the heat treated composition to provide said aluminum doped zinc magnesium oxide.Type: ApplicationFiled: May 18, 2017Publication date: September 7, 2017Inventors: Kamal Asadi, Dagobert Michel De Leeuw, Johannes Franciscus Maria Cillessen, Wilhelmus Cornelis Keur, Frank Verbakel, Patrick John Baesjou, Cornelis Eustatius Timmering
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Patent number: 9746153Abstract: The present invention relates to lighting module, wherein a light exit window (12) of the lighting module is engraved such that the output color temperature of said lighting module is tuned. The present invention also relates to a method for tuning an output color temperature of a lighting module, said method comprising providing said lighting module comprising a light exit window (12), and a light source arranged to provide light having an optical path through said light exit window (12), said lighting module having a first output color temperature; and engraving a surface of said light exit window (12) such that the output color temperature of said lighting module is tuned to a second output color temperature.Type: GrantFiled: March 10, 2014Date of Patent: August 29, 2017Assignee: PHILIPS LIGHTING HOLDING B.V.Inventors: Durandus Kornelius Dijken, Jianghong Yu, Hans Kroes, Renatus Hendricus Maria Sanders, Hendrik Johannes Boudewijn Jagt, Kamal Asadi
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Patent number: 9666758Abstract: Method for producing a light emitting semiconductor device comprising a zinc magnesium oxide based layer as active layer, wherein the zinc magnesium oxide based layer comprises an aluminum doped zinc magnesium oxide layer having the nominal composition Zn1-xMgxO with 1-350 ppm Al, wherein x is in the range of 0<x?0.3. The invention further provides a method for the production of such aluminum doped zinc magnesium oxide, the method comprising heat treating a composition comprising Zn, Mg and Al with a predetermined composition at elevated temperatures, and subsequently annealing the heat treated composition to provide said aluminum doped zinc magnesium oxide.Type: GrantFiled: June 9, 2016Date of Patent: May 30, 2017Assignee: Koninklijke Philips N.V.Inventors: Kamal Asadi, Dagobert Michel De Leeuw, Johannes Franciscus Maria Cillessen, Wilhelmus Cornelis Keur, Frank Verbakel, Patrick John Baesjou, Cornelis Eustatius Timmering
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Patent number: 9559320Abstract: Described is a modulatable injection barrier and a semiconductor element comprising same. More particularly, the invention relates to a two-terminal, non-volatile programmable resistor. Such a resistor can be applied in non-volatile memory devices, and as an active switch e.g. in displays. The device comprises, in between electrode layers, a storage layer comprising a blend of a ferro-electric material and a semiconductor material. Preferably both materials in the blend are polymers.Type: GrantFiled: September 14, 2011Date of Patent: January 31, 2017Assignees: NEDERLANDSE ORGANISATIE VOOR TOEGEPAST-NATUURWETENSCHAPPELIJK ONDERZOEK TNO, IMEC VZWInventors: Paulus Wilhelmus Maria Blom, Bert De Boer, Kamal Asadi
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Publication number: 20160293799Abstract: The invention provides a light emitting semiconductor device comprising a zinc magnesium oxide based layer as active layer, wherein the zinc magnesium oxide based layer comprises an aluminum doped zinc magnesium oxide layer having the nominal composition Zn1-xMgxO with 1-350 ppm Al, wherein x is in the range of 0<x?0.3. The invention further provides a method for the production of such aluminum doped zinc magnesium oxide, the method comprising heat treating a composition comprising Zn, Mg and Al with a predetermined composition at elevated temperatures, and subsequently annealing the heat treated composition to provide said aluminum doped zinc magnesium oxide.Type: ApplicationFiled: June 9, 2016Publication date: October 6, 2016Inventors: Kamal Asadi, Dagobert Michel De Leeuw, Johannes Franciscus Maria Cillessen, Wilhelmus Cornelis Keur, Frank Verbakel, Patrick John Baesjou, Cornelis Eustatius Timmering
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Patent number: 9385264Abstract: The invention provides a light emitting semi conductor device comprising a zinc magnesium oxide based layer as active layer, wherein the zinc magnesium oxide based layer comprises an aluminum doped zinc magnesium oxide layer having the nominal composition Zn-xMgxO with 1-350 ppm Al, wherein x is in the range of 0<x?0.3. The invention further provides a method for the production of such aluminum doped zinc magnesium oxide, the method comprising heat treating a composition comprising Zn, Mg and Al with a predetermined composition at elevated temperatures, and subsequently annealing the heat treated composition to provide said aluminum doped zinc magnesium oxide.Type: GrantFiled: June 28, 2013Date of Patent: July 5, 2016Assignee: KONINKLIJKE PHILIPS N.V.Inventors: Kamal Asadi, Dagobert Michael De Leeuw, Johannes Franciscus Maria Cillessen, Wilhelmus Cornelis Keur, Frank Verbakel, Patrick John Baesjou, Cornelis Eustatius Timmering
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Publication number: 20160136583Abstract: Disclosed is a method of manufacturing a partially freestanding two-dimensional crystal film (16, 16?), the method comprising providing a substrate (10) carrying a catalyst layer (14) for forming the two-dimensional crystal layer on a first surface; forming the two-dimensional crystal film on the catalyst layer; covering at least the two-dimensional crystal film with a protective layer (18); etching a cavity (24) in a second surface of the substrate, the second surface being opposite to the first surface, said cavity terminating on the catalyst layer; etching the exposed part of the catalyst layer from the cavity; and removing the protective layer, thereby obtaining a two-dimensional crystal film that is freestanding over said cavity. A device manufactured in this manner is also disclosed.Type: ApplicationFiled: April 21, 2014Publication date: May 19, 2016Inventors: KAMAL ASADI, JOHAN HENDRIK KLOOTWIJK
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Publication number: 20160025294Abstract: The present invention relates to lighting module, wherein a light exit window (12) of the lighting module is engraved such that the output color temperature of said lighting module is tuned. The present invention also relates to a method for tuning an output color temperature of a lighting module, said method comprising providing said lighting module comprising a light exit window (12), and a light source arranged to provide light having an optical path through said light exit window (12), said lighting module having a first output color temperature; and engraving a surface of said light exit window (12) such that the output color temperature of said lighting module is tuned to a second output color temperature.Type: ApplicationFiled: March 10, 2014Publication date: January 28, 2016Inventors: Durandus Kornelius DIJKEN, Jianghong YU, Hans KROES, Renatus Hendricus Maria SANDERS, Hendrik Johannes Boudewijn JAGT, Kamal ASADI
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Patent number: 9246117Abstract: Described is an (organic) light-emitting diode ((O)LED) wherein the light-emitting layer comprises a blend of an electroluminescent semiconducting material with a ferro-electric material. Either of the electrodes forms a modulatable injection barrier with the ferro-electric material, the modulation requiring a voltage Vm serving to polarize or repolarize the ferro-electric material. With Vm being larger than the voltage Ve required for light emission, the (O)LED can be turned “on” or “off” by applying a pulse voltage to (re)polarize the ferro-electric material.Type: GrantFiled: November 26, 2009Date of Patent: January 26, 2016Assignees: Nederlandse Organisatie voor toegepast-natuurwetenschappelijk onderzoek TNO, IMEC vzwInventors: Paulus Wilhelmus Maria Blom, Bert De Boer, Sandra De Boer-Douwsma, Kamal Asadi
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A COLOR CONVERSION ARRANGEMENT, A LIGHTING UNIT, A SOLID STATE LIGHT EMITTER PACKAGE AND A LUMINAIRE
Publication number: 20150345745Abstract: The invention provides a color conversion arrangement, a lighting unit, a solid state light emitter package, a luminaire and a specific use of a graphene layer. A color conversion arrangement (140) with the first aspect comprises a first luminescent layer (110), a supporting layer (106) and a first graphene layer (108). The color conversion arrangement (140) is for converting light of a first color to light of another color. The first luminescent layer (110) comprises a first luminescent material which absorbs a portion of light of a first spectral distribution comprising the first color and converts at least a portion of the absorbed light towards light of a second spectral distribution. The supporting layer (106) supports the luminescent layer (110). The first graphene layer (108) thermally conducts heat in a lateral direction such that temperature differences in the color conversion arrangement (140) are reduced. Different arrangements of the layers of the color conversion arrangement (140) are provided.Type: ApplicationFiled: December 2, 2013Publication date: December 3, 2015Inventors: Kamal ASADI, Dagobert Michel DE LEEUW, Johannes Franciscus Maria CILLESSEN, Manuela LUNZ -
Publication number: 20150340559Abstract: The invention provides a light emitting semi conductor device comprising a zinc magnesium oxide based layer as active layer, wherein the zinc magnesium oxide based layer comprises an aluminum doped zinc magnesium oxide layer having the nominal composition Zn-xMgxO with 1-350 ppm Al, wherein x is in the range of 0<x?0.3. The invention further provides a method for the production of such aluminum doped zinc magnesium oxide, the method comprising heat treating a composition comprising Zn, Mg and Al with a predetermined composition at elevated temperatures, and subsequently annealing the heat treated composition to provide said aluminum doped zinc magnesium oxide.Type: ApplicationFiled: June 28, 2013Publication date: November 26, 2015Inventors: KAMAL ASADI, DAGOBERT MICHAEL DE LEEUW, JOHANNES FRANCISCUS MARIA CILLESSEN, WILHELMUS CORNELIS KEUR, FRANK VERBAKEL, PATRICK JOHN BAESJOU, CORNELIS EUSTATIUS TIMMERING
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Publication number: 20120126704Abstract: Described is an (organic) light-emitting diode ((O)LED) wherein the light-emitting layer comprises a blend of an electroluminescent semiconducting material with a ferro-electric material. Either of the electrodes forms a modulatable injection barrier with the ferro-electric material, the modulation requiring a voltage Vm serving to polarize or repolarize the ferro-electric material. With Vm being larger than the voltage Ve required for light emission, the (O)LED can be turned “on” or “off” by applying a pulse voltage to (re)polarize the ferro-electric material.Type: ApplicationFiled: November 26, 2009Publication date: May 24, 2012Inventors: Paulus Wilhelmus Maria Blom, Bert De Boer, Sandra De Boer-Douwsma, Kamal Asadi
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Publication number: 20120080665Abstract: Described is a modulatable injection barrier and a semiconductor element comprising same. More particularly, the invention relates to a two-terminal, non-volatile programmable resistor. Such a resistor can be applied in non-volatile memory devices, and as an active switch e.g. in displays. The device comprises, in between electrode layers, a storage layer comprising a blend of a ferro-electric material and a semiconductor material. Preferably both materials in the blend are polymers.Type: ApplicationFiled: September 14, 2011Publication date: April 5, 2012Applicant: Rjiksuniversiteit GroningenInventors: Paulus Wilhelmus Maria Blom, Bert De Boer, Kamal Asadi
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Patent number: 8120084Abstract: Described is a modulatable injection barrier and a semiconductor element comprising same. More particularly, the invention relates to a two-terminal, non-volatile programmable resistor. Such a resistor can be applied in non-volatile memory devices, and as an active switch e.g. in displays. The device comprises, in between electrode layers, a storage layer comprising a blend of a ferro-electric material and a semiconductor material. Preferably both materials in the blend are polymers.Type: GrantFiled: May 22, 2008Date of Patent: February 21, 2012Assignee: Rijksuniversiteit GroningenInventors: Paulus Wilhelmus Maria Blom, Bert de Boer, Kamal Asadi
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Publication number: 20100171103Abstract: Described is a modulatable injection barrier and a semiconductor element comprising same. More particularly, the invention relates to a two-terminal, non-volatile programmable resistor. Such a resistor can be applied in non-volatile memory devices, and as an active switch e.g. in displays. The device comprises, in between electrode layers, a storage layer comprising a blend of a ferro-electric material and a semiconductor material. Preferably both materials in the blend are polymers.Type: ApplicationFiled: May 22, 2008Publication date: July 8, 2010Applicant: RIJIKSUNIVERSITEIT GRONINGENInventors: Paulus Wilhelmus Maria Blom, Bert de Boer, Kamal Asadi