Patents Assigned to Maxdem Incorporated
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Patent number: 8242235Abstract: Objects of the present invention are to provide a purification process that enables Pd and P to be removed effectively, and to provide an electroluminescent material and an electroluminescent device obtained by employing the process. The present invention relates to a process for purifying an electroluminescent material, the process involving treating, with an oxidizing agent and then with a column, an electroluminescent material that contains Pd and/or P as impurities so as to remove the Pd and/or P.Type: GrantFiled: June 4, 2004Date of Patent: August 14, 2012Assignees: Hitachi Chemical Co., Ltd., Maxdem IncorporatedInventors: Yoshihiro Tsuda, Yoshii Morishita, Satoyuki Nomura, Seiji Tai, Yousuke Hoshi, Shigeaki Funyuu, Matthew L. Marrocco, III, Farshad J. Motamedi, Li-Sheng Wang
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Patent number: 8075943Abstract: Objects of the present invention are to provide a purification process that enables Pd contained in an organic electronics material to be removed effectively, to provide an electroluminescent device middle layer material purified by the process, and to provide an electroluminescent device employing the middle layer material. The present invention relates to a process for purifying an organic electronics material, the process involving treating, with a phosphorus-containing material, an organic electronics material that contains Pd as an impurity so as to remove the Pd.Type: GrantFiled: December 27, 2005Date of Patent: December 13, 2011Assignees: Hitachi Chemical Co., Ltd., Maxdem IncorporatedInventors: Yoshihiro Tsuda, Yoshii Morishita, Satoyuki Nomura, Yousuke Hoshi, Shigeaki Funyuu, Farshad J. Motamedi, Li-Sheng Wang
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Patent number: 7655961Abstract: Diodes having p-type and n-type regions in contact, having at least one of either the p-type region or n-type region including a conjugated organic material doped with an immobile dopant, conjugated organic materials for incorporation into such diodes, and methods of manufacturing such diodes and materials are provided.Type: GrantFiled: September 28, 2004Date of Patent: February 2, 2010Assignee: Maxdem IncorporatedInventors: Matthew L. Marrocco, III, Farshad J. Motamedi
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Patent number: 7507351Abstract: Objects of the present invention are to provide a purification process that enables Pd to be removed effectively, and to provide an electroluminescent material and an electroluminescent device obtained by employing the process. The present invention relates to a process for purifying an electroluminescent material, the process involving treating, with a phosphorus-containing material, an electroluminescent material that contains Pd as an impurity so as to remove the Pd.Type: GrantFiled: June 4, 2004Date of Patent: March 24, 2009Assignees: Hitachi Chemical Co., Ltd., Maxdem IncorporatedInventors: Yoshihiro Tsuda, Yoshii Morishita, Satoyuki Nomura, Seiji Tai, Yousuke Hoshi, Shigeaki Funyuu, Farshad J. Motamedi, Li-Sheng Wang
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Publication number: 20070275628Abstract: Objects of the present invention are to provide a purification process that enables Pd and P to be removed effectively, and to provide an electroluminescent material and an electroluminescent device obtained by employing the process. The present invention relates to a process for purifying an electroluminescent material, the process involving treating, with an oxidizing agent and then with a column, an electroluminescent material that contains Pd and/or P as impurities so as to remove the Pd and/or P.Type: ApplicationFiled: June 4, 2004Publication date: November 29, 2007Applicants: HITACHI CHEMICAL CO., LTD., MAXDEM INCORPORATEDInventors: Yoshihiro Tsuda, Yoshii Morishita, Satoyuki Nomura, Seiji Tai, Yousuke Hoshi, Shigeaki Funyuu, Matthew Marrocco, Farshad Motamedi, Li-Sheng Wang
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Publication number: 20070003783Abstract: The present invention relates to a quinoline copolymer containing an optionally substituted quinoline monomer unit and an optionally substituted benzotriazole monomer unit. It is an object of the present invention to provide a light-emitting polymer material having excellent stability.Type: ApplicationFiled: April 16, 2004Publication date: January 4, 2007Applicants: Hitachi Chemical Co Ltd, Maxdem IncorporatedInventors: Yoshii Morishita, Satoyuki Nomura, Yoshihiro Tsuda, Seiji Tai
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Publication number: 20060083945Abstract: High quantum yield luminescent monomers, oligomers, and polymers, comprising benzotriazole repeating units and derivatives thereof have been discovered and utilized in optical devices and components therefor, including electroluminescent devices, light emitting devices, photoluminescent devices, organic light emitting diodes (OLEDs), OLED displays, sensors, and the like.Type: ApplicationFiled: October 15, 2004Publication date: April 20, 2006Applicants: HITACHI CHEMICAL CO. LTD., MAXDEM INCORPORATEDInventors: Yoshii Morishita, Satoyuki Nomura, Yoshihiro Tsuda, Seiji Tai, Matthew Marrocco, Farshad Motamedi, Li-Sheng Wang, Yongchao Liang
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Publication number: 20040131886Abstract: Photoluminescent and electroluminescent compositions are provided which comprise a matrix comprising aromatic repeat units and a luminescent metal ion or luminescent metal ion complex. Methods for producing such compositions, and the electroluminescent devices formed therefrom, are disclosed.Type: ApplicationFiled: December 15, 2003Publication date: July 8, 2004Applicant: Maxdem IncorporatedInventors: Matthew L. Marrocco, Farshad J. Motamedi
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Patent number: 6087467Abstract: Rigid-rod and segmented rigid-rod polymers, methods for preparing the polymers and useful articles incorporating the polymers are provided. The polymers incorporate rigid-rod backbones with pendant solubilizing groups attached thereto for rendering the polymers soluble.Type: GrantFiled: December 2, 1998Date of Patent: July 11, 2000Assignee: Maxdem IncorporatedInventors: Matthew Louis Marrocco, III, Robert R. Cagne, Mark Steven Trimmer
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Patent number: 5976437Abstract: Rigid-rod and segmented rigid-rod polymers, methods for preparing the polymers and useful articles incorporating the polymers are provided. The polymers incorporate rigid-rod backbones with pendant solubilizing groups attached thereto for rendering the polymers soluble.Type: GrantFiled: July 23, 1997Date of Patent: November 2, 1999Assignee: Maxdem IncorporatedInventors: Matthew Louis Marrocco, III, Robert R. Gagne, Mark Steven Trimmer
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Patent number: 5886130Abstract: A new class of polyarylene co-polymers include repeating units comprising one or more arylene units having the general formula (--Ar--/--Y--).sub.n, where Y is a divalent group chosen from nil, --Z--, --Z--Ph--, and --Ph--Z--Ph--, where Z is a divalent group chosen from the group consisting of --O--, --S--, --NR--, --O(CO)--, --O(CO.sub.2)--,--(CO)NH(CO)--, --NR(CO)--, phthalimide, pyromellitimide, --CO--, --SO--, --SO.sub.2 --, --P(O)R--, --CH.sub.2 --, --CF.sub.2 --, and --CRR'--; Ph is phenylene (ortho, meta or para); and n is greater than 4. The co-polymers are useful as molding resins, and composite matrix resins, and where Ar is heteroarylene as ion exchange resins.Type: GrantFiled: November 2, 1995Date of Patent: March 23, 1999Assignee: Maxdem IncorporatedInventors: Mark S. Trimmer, Ying Wang, Matthew L. Marrocco III, Virgil J. Lee
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Patent number: 5869592Abstract: Rigid-rod macromonomers, and methods for preparing such macromonomers, having a polyaromatic backbone, solubilizing side groups, and reactive side groups are provided. The macromonomers are chemically incorporated into polymer systems to provide stronger, stiffened polymers.Type: GrantFiled: August 19, 1991Date of Patent: February 9, 1999Assignee: Maxdem IncorporatedInventors: Robert R. Gagne, Matthew Louis Marrocco III, Mark Steven Trimmer, Neil H. Hendricks
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Patent number: 5858907Abstract: A catalyst is provided which is useful for coupling aryl halides or aryl sulfonates to produce biaryls or polyaryls. The catalyst composition is formed by mixing together in an anhydrous aprotic solvent a nickel compound or nickel complex, a phosphite ligand, and a reducing metal which can be aluminum, magnesium, or zinc or the like.Type: GrantFiled: September 18, 1996Date of Patent: January 12, 1999Assignee: Maxdem, IncorporatedInventors: Ying Wang, Matthew L. Marrocco, III, Mark S. Trimmer
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Patent number: 5830945Abstract: Rigid-rod macromonomers, and methods for preparing such macromonomers, having a polyaromatic backbone, solubilizing side groups, and reactive side groups are provided. The macromonomers are chemically incorporated into polymer systems to provide stronger, stiffened polymers.Type: GrantFiled: August 23, 1996Date of Patent: November 3, 1998Assignee: Maxdem, IncorporatedInventors: Robert R. Gagne, Matthew Louis Marrocco, III, Mark Steven Trimmer, Neil H. Hendricks
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Patent number: 5827927Abstract: A soluble rigid-rod macromonomer is provided which has the following formula: ##STR1## wherein each A.sub.1, A.sub.2, A.sub.3, and A.sub.4, on each monomer unit, independently, is C or N, and each G.sub.1, G.sub.2, G.sub.3, and G.sub.4, on each monomer unit, independently, is H or a solubilizing side group, provided that at least one monomer unit has at least one solubilizing side group. The solubilizing side groups provide the macromonomers with a solubility of at least 0.5% by weight in the solvent system from which they are formed. E is a reactive end group, and the macromonomer has an average degree of polymerization, DP.sub.n, greater than 6. Such macromonomers are chemically incorporated into polymer systems to provide stronger stiffened polymers.Type: GrantFiled: May 14, 1996Date of Patent: October 27, 1998Assignee: Maxdem IncorporatedInventors: Robert R. Gagne, Matthew Louis Marrocco, III, Mark Steven Trimmer, Neil H. Hendricks
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Patent number: 5824744Abstract: A soluble rigid-rod macromonomer is provided which has the following formula: ##STR1## wherein each G.sub.1, G.sub.2, G.sub.3, and G.sub.4, on each monomer unit, independently, is H or a solubilizing side group, provided that at least one monomer unit has at least one solubilizing side group. The solubilizing side groups provide the macromonomers with a solubility of at least 0.5% by weight in the solvent system from which they are formed. E is a reactive end group, and the macromonomer has an average degree of polymerization, DP.sub.n, greater than 6. Such macromonomers are chemically incorporated into polymer systems to provide stronger stiffened polymers.Type: GrantFiled: June 1, 1995Date of Patent: October 20, 1998Assignee: Maxdem IncorporatedInventors: Robert R. Gagne, Matthew Louis Marrocco, III, Mark Steven Trimmer, Neil H. Hendricks
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Patent number: 5789521Abstract: Rigid-rod and segmented rigid-rod polymers, methods for preparing the polymers and useful articles incorporating the polymers are provided. The polymers incorporate rigid-rod backbones with pendant solubilizing groups attached thereto for rendering the polymers soluble.Type: GrantFiled: June 2, 1995Date of Patent: August 4, 1998Assignee: Maxdem IncorporatedInventors: Matthew Louis Marrocco, III, Robert R. Gagne, Mark Steven Trimmer
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Patent number: 5760131Abstract: Rigid-rod and segmented rigid-rod polymers, methods for preparing the polymers and useful articles incorporating the polymers are provided. The polymers incorporate rigid-rod backbones with pendant solubilizing groups attached thereto for rendering the polymers soluble.Type: GrantFiled: June 2, 1995Date of Patent: June 2, 1998Assignee: Maxdem IncorporatedInventors: Matthew Louis Marrocco, III, Robert R. Gagne, Mark Steven Trimmer
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Patent number: 5756581Abstract: Rigid-rod and segmented rigid-rod polymers, methods for preparing the polymers and useful articles incorporating the polymers are provided. The polymers incorporate rigid-rod backbones with pendant solubilizing groups attached thereto for rendering the polymers soluble.Type: GrantFiled: June 2, 1995Date of Patent: May 26, 1998Assignee: Maxdem IncorporatedInventors: Matthew Louis Marrocco, III, Robert R. Gagne, Mark Steven Trimmer
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Patent number: 5731400Abstract: Rigid-rod and segmented rigid-rod polymers, methods for preparing the polymers and useful articles incorporating the polymers are provided. The polymers incorporate rigid-rod backbones with pendant solubilizing groups attached thereto for rendering the polymers soluble.Type: GrantFiled: June 2, 1995Date of Patent: March 24, 1998Assignee: Maxdem IncorporatedInventors: Matthew Louis Marrocco, III, Robert R. Gagne, Mark Steven Trimmer, Ying Wang