Patents by Inventor Michael Inbasekaran
Michael Inbasekaran 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).
-
Patent number: 9399702Abstract: Crosslinkable arylamine compounds, oligomers and polymers prepared from such crosslinkable arylamine compounds, films and coatings, and multilayer electronic devices comprising such films are disclosed.Type: GrantFiled: November 21, 2012Date of Patent: July 26, 2016Assignee: SUMITOMO CHEMICAL COMPANY, LIMITEDInventors: Scott Gaynor, Michael Inbasekaran, James J. O'Brien, Dean M. Welsh
-
Patent number: 9252363Abstract: A liquid composition (e.g., inkjet fluid) for forming an organic layer of an organic electronic device (e.g., an OLED). The liquid composition comprises a small molecule organic semiconductor material mixed in a solvent in which the solvent compound has the following formula: wherein R1 is C1-6 alkyl; R2 is C1-6 alkyl; and R3 is one or more optional substitutions independently selected from C1-6 alkyl and lower aryl.Type: GrantFiled: October 4, 2012Date of Patent: February 2, 2016Assignee: Universal Display CorporationInventors: Kwang-Ohk Cheon, Angang Dong, Michael Inbasekaran, Suman Layek
-
Patent number: 9184394Abstract: Ionic compounds comprising: (a) a cationic radical of a charge transporting compound which has one or more reactive groups; and (b) a counter anion. The ionic compound may have the following formula: The reactive functional groups on the cation allow the ionic compound to cross-link with a host charge transport compound. Such ionic compounds may have various properties, such as thermodynamic stability, hole injection/transport capabilities, electrochemical durability, and/or solubility in organic solvents that allows them to be useful in organic electronic devices. Also provided are electronic devices made using the ionic compounds of the present invention, and methods of making an electronic device.Type: GrantFiled: May 8, 2009Date of Patent: November 10, 2015Assignee: UNIVERSAL DISPLAY CORPORATIONInventors: Chuanjun Xia, Kwang-Ohk Cheon, Michael Inbasekaran
-
Patent number: 9087622Abstract: A liquid composition (e.g., inkjet fluid) for forming an organic layer of an organic electronic device (e.g., an OLED). The liquid composition comprises a small molecule organic semiconductor material mixed in an aromatic solvent. The aromatic solvent, when left as a residue in the organic layer, is capable of presenting relatively reduced resistivity to charge transport or facilitating charge transport in the organic layer that is deposited, as compared to other conventional solvents. In certain embodiments, the aromatic solvent compound has the following formula: wherein R represents one or more optional substituents on the benzene ring, wherein each R is independently an aliphatic group containing from 1-15 carbon atoms; and wherein X is a substitution group that contains an electron-withdrawing group selected from nitrile, sulfonyl, or trifluoromethyl.Type: GrantFiled: December 1, 2010Date of Patent: July 21, 2015Assignee: Universal Display CorporationInventors: Kwang-Ohk Cheon, Michael Inbasekaran
-
Patent number: 9054344Abstract: A method of fabricating an organic light emitting device is provided. A first electrode is provided, over which the rest of the device will be fabricated. A first organic layer is deposited over the first electrode via solution processing. The first organic layer includes: i. an organic host material of the first organic layer; ii. a first organic emitting material of the first organic layer; iii. a second organic emitting material of the first organic layer; A second organic layer is deposited over and in direct contact with the first organic layer. The second organic layer includes an organic emitting material of the second organic layer. A second electrode is then deposited over the second organic layer. The device may include other layers.Type: GrantFiled: March 19, 2014Date of Patent: June 9, 2015Assignee: Universal Display CorporationInventors: Kwang Ohk Cheon, Michael Inbasekaran, Julia J. Brown
-
Publication number: 20140206121Abstract: A method of fabricating an organic light emitting device is provided. A first electrode is provided, over which the rest of the device will be fabricated. A first organic layer is deposited over the first electrode via solution processing. The first organic layer includes: i. an organic host material of the first organic layer; ii. a first organic emitting material of the first organic layer; iii. a second organic emitting material of the first organic layer; A second organic layer is deposited over and in direct contact with the first organic layer. The second organic layer includes an organic emitting material of the second organic layer. A second electrode is then deposited over the second organic layer. The device may include other layers.Type: ApplicationFiled: March 19, 2014Publication date: July 24, 2014Applicant: Universal Display CorporationInventors: Kwang Ohk CHEON, Michael INBASEKARAN, Julie J. BROWN
-
Publication number: 20140097406Abstract: A liquid composition (e.g., inkjet fluid) for forming an organic layer of an organic electronic device (e.g., an OLED). The liquid composition comprises a small molecule organic semiconductor material mixed in a solvent in which the solvent compound has the following formula: wherein R1 is C1-6 alkyl; R2 is C1-6 alkyl; and R3 is one or more optional substitutions independently selected from C1-6 alkyl and lower aryl.Type: ApplicationFiled: October 4, 2012Publication date: April 10, 2014Applicant: UNIVERSAL DISPLAY CORPORATIONInventors: Kwang-Ohk CHEON, Angang DONG, Michael INBASEKARAN, Suman LAYEK
-
Patent number: 8405075Abstract: A method of forming an organic layer by using a liquid composition comprising a small molecule organic semiconductor material mixed in a ketone solvent. The liquid composition is deposited on a surface to form the organic layer. The ketone solvent may be an aromatic ketone solvent, such as a tetralone solvent. The organic semiconductor material may be cross-linkable to provide a cross-linked organic layer. The method can be used to make organic electronic devices, such as organic light emitting devices. In another aspect, the liquid composition comprises a small molecule organic semiconductor material mixed in an aromatic ether solvent. Also, provided are liquid compositions which can be used to make organic layers.Type: GrantFiled: April 23, 2012Date of Patent: March 26, 2013Assignees: Universal Display Corporation, Seiko Epson CorporationInventors: Kwang-Ohk Cheon, Chuanjun Xia, Michael Inbasekaran
-
Publication number: 20120264977Abstract: A conjugated or partially conjugated polymer including a structural unit of Formula I in the backbone: where Ar1 and Ar2 are each independently a substituted or unsubstituted arylene or hetero arylene group with two or more aromatic rings fused together and Ar3 is an aryl or heteroaryl group of C4 to C40 or substituted aryl or heteroaryl group of C4 to C40 and devices containing such polymer. In addition, a composition of Formula V wherein Ar1 and Ar2 are arylene or heteroarylene groups and Ar3 is an aryl or heteroaryl group and wherein X is a leaving group such as halogen, boronic acid or boronate ester.Type: ApplicationFiled: June 29, 2012Publication date: October 18, 2012Applicant: SUMITOMO CHEMICAL COMPANY, LIMITEDInventors: Chun WANG, Michael Inbasekaran, Wanglin Yu, Yang Cheng
-
Publication number: 20120256136Abstract: A liquid composition (e.g., inkjet fluid) for forming an organic layer of an organic electronic device (e.g., an OLED). The liquid composition comprises a small molecule organic semiconductor material mixed in an aromatic solvent. The aromatic solvent, when left as a residue in the organic layer, is capable of presenting relatively reduced resistivity to charge transport or facilitating charge transport in the organic layer that is deposited, as compared to other conventional solvents. In certain embodiments, the aromatic solvent compound has the following formula: wherein R represents one or more optional substituents on the benzene ring, wherein each R is independently an aliphatic group containing from 1-15 carbon atoms; and wherein X is a substitution group that contains an electron-withdrawing group selected from nitrile, sulfonyl, or trifluoromethyl.Type: ApplicationFiled: December 1, 2010Publication date: October 11, 2012Applicant: Universal Display CorporationInventors: Kwang-Ohk Cheon, Michael Inbasekaran
-
Patent number: 8247800Abstract: A conjugated or partially conjugated polymer including a structural unit of Formula I in the backbone: (Formula I), wherein Arl, Are are each independently a substituted or unsubstituted arylene or hetero arylene group with two or more aromatic rings fused together and Ar3 is an aryl or heteroaryl group of C4 to C40 or substituted aryl or heteroaryl group of C4 to C40 and devices containing such polymer. In addition, a composition of: (Formula V), wherein Ar1, Are are arylene or heteroaryl groups and Ar3 is an aryl or heteroaryl group and wherein X is a leaving group such as halogen, boronic acid or boronate ester.Type: GrantFiled: December 1, 2005Date of Patent: August 21, 2012Assignee: Sumitomo Chemical Company, LimitedInventors: Chun Wang, Michael Inbasekaran, Wanglin Yu, Yang Cheng
-
Publication number: 20120205637Abstract: A method of forming an organic layer by using a liquid composition comprising a small molecule organic semiconductor material mixed in a ketone solvent. The liquid composition is deposited on a surface to form the organic layer. The ketone solvent may be an aromatic ketone solvent, such as a tetralone solvent. The organic semiconductor material may be cross-linkable to provide a cross-linked organic layer. The method can be used to make organic electronic devices, such as organic light emitting devices. In another aspect, the liquid composition comprises a small molecule organic semiconductor material mixed in an aromatic ether solvent. Also, provided are liquid compositions which can be used to make organic layers.Type: ApplicationFiled: April 23, 2012Publication date: August 16, 2012Applicant: UNIVERSAL DISPLAY CORPORATIONInventors: Kwang-Ohk CHEON, Chuanjun XIA, Michael INBASEKARAN
-
Patent number: 8174000Abstract: A method of forming an organic layer by using a liquid composition comprising a small molecule organic semiconductor material mixed in a ketone solvent. The liquid composition is deposited on a surface to form the organic layer. The ketone solvent may be an aromatic ketone solvent, such as a tetralone solvent. The organic semiconductor material may be cross-linkable to provide a cross-linked organic layer. The method can be used to make organic electronic devices, such as organic light emitting devices. In another aspect, the liquid composition comprises a small molecule organic semiconductor material mixed in an aromatic ether solvent. Also, provided are liquid compositions which can be used to make organic layers.Type: GrantFiled: February 11, 2009Date of Patent: May 8, 2012Assignees: Universal Display Corporation, Seiko Epson CorporationInventors: Kwang-Ohk Cheon, Chuanjun Xia, Michael Inbasekaran, Takuya Sonoyama, Masaki Ito, Masahiro Uchida, Shunichi Seki
-
Publication number: 20120049164Abstract: Organic electronic devices comprising an improved charge transport layer. The charge transport layer comprises a covalently cross-linked host matrix. The covalently cross-linked matrix comprises a charge transport compound as molecular subunits that are cross-linked to each other. The charge transport layer further comprises a second charge transport compound as an additive. The charge transport layer may be a hole transport layer. The charge transport compound for the additive may be an arylamine compound, such as NPD.Type: ApplicationFiled: August 31, 2010Publication date: March 1, 2012Applicant: UNIVERSAL DISPLAY CORPORATIONInventors: Michael INBASEKARAN, Kwang-Ohk CHEON, Chuanjun XIA, Siddharth Harikrishna MOHAN
-
Publication number: 20120049168Abstract: Organic electronic devices comprising an improved charge transport layer. The charge transport layer comprises a covalently cross-linked host matrix. The covalently cross-linked matrix comprises a charge transport compound as molecular subunits that are cross-linked to each other. The charge transport layer further comprises a second charge transport compound as an additive, which may be a small molecule, or a polymer, or a mixture of both. The charge transport layer may be a hole transport layer. The charge transport compound for the additive may be an arylamine compound, such as NPD.Type: ApplicationFiled: June 20, 2011Publication date: March 1, 2012Applicant: UNIVERSAL DISPLAY CORPORATIONInventors: Michael INBASEKARAN, Kwang-Ohk CHEON, Chuanjun XIA, Siddharth Harikrishna MOHAN
-
Publication number: 20120010359Abstract: A compound having a structural unit of Formula (I): A polymer having a structural unit of Formula (II): A conjugated polymer having one or more side groups of the following Formula (III): Additionally, compositions, polymer blends, films, coatings, and electronic devices prepared from such polymers.Type: ApplicationFiled: September 22, 2011Publication date: January 12, 2012Applicant: SUMITOMO CHEMICAL COMPANY, LIMITEDInventors: Yang CHENG, Michael Inbasekaran, Chun Wang
-
Patent number: 8052894Abstract: A compound having a structural unit of Formula: (I). A polymer having a structural unit of Formula: (II). A conjugated polymer having one or more side groups of the following Formula: (III). Additionally, compositions, polymer blends, films, coatings, and electronic devices prepared from such polymers.Type: GrantFiled: December 1, 2005Date of Patent: November 8, 2011Assignee: Sumitomo Chemical Company, LimitedInventors: Yang Cheng, Michael Inbasekaran, Chun Wang
-
Patent number: 7956350Abstract: Novel 2,7-di(arylamino)-substituted fluorenes that are further substituted at the 9-position with one or more crosslinkable moieties, oligomers or polymers formed by crosslinking of said crosslinkable moieties, methods for their preparation, and use thereof in forming solvent resistant films having use as interlayers in electronic devices, especially electroluminescent devices.Type: GrantFiled: October 25, 2004Date of Patent: June 7, 2011Assignee: Sumitomo Chemical Company, LimitedInventors: Michael Inbasekaran, Wanglin Yu
-
Publication number: 20110105711Abstract: Crosslinkable substituted fluorine compounds; oligomers and polymers prepared from such crosslinkable compounds; films and coatings; and multilayer electronic devices comprising such films are disclosed.Type: ApplicationFiled: December 29, 2010Publication date: May 5, 2011Applicant: SUMITOMO CHEMICAL COMPANY, LIMITEDInventors: Michael INBASEKARAN, Wanglin Yu
-
Publication number: 20110089411Abstract: Ionic compounds comprising: (a) a cationic radical of a charge transporting compound which has one or more reactive groups; and (b) a counter anion. The reactive functional groups on the cation allow the ionic compound to cross-link with a host charge transport compound. Such ionic compounds may have various properties, such as thermodynamic stability, hole injection/transport capabilities, electrochemical durability, and/or solubility in organic solvents that allows them to be useful in organic electronic devices. Also provided are electronic devices made using the ionic compounds of the present invention, and methods of making an electronic device.Type: ApplicationFiled: May 8, 2009Publication date: April 21, 2011Inventors: Chuanjun Xia, Cheon Kwang-Ohk, Michael Inbasekaran