Patents Assigned to Maxdem Incorporated
  • Patent number: 8242235
    Abstract: 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: Grant
    Filed: June 4, 2004
    Date of Patent: August 14, 2012
    Assignees: Hitachi Chemical Co., Ltd., Maxdem Incorporated
    Inventors: Yoshihiro Tsuda, Yoshii Morishita, Satoyuki Nomura, Seiji Tai, Yousuke Hoshi, Shigeaki Funyuu, Matthew L. Marrocco, III, Farshad J. Motamedi, Li-Sheng Wang
  • Patent number: 8075943
    Abstract: 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: Grant
    Filed: December 27, 2005
    Date of Patent: December 13, 2011
    Assignees: Hitachi Chemical Co., Ltd., Maxdem Incorporated
    Inventors: Yoshihiro Tsuda, Yoshii Morishita, Satoyuki Nomura, Yousuke Hoshi, Shigeaki Funyuu, Farshad J. Motamedi, Li-Sheng Wang
  • Patent number: 7655961
    Abstract: 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: Grant
    Filed: September 28, 2004
    Date of Patent: February 2, 2010
    Assignee: Maxdem Incorporated
    Inventors: Matthew L. Marrocco, III, Farshad J. Motamedi
  • Patent number: 7507351
    Abstract: 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: Grant
    Filed: June 4, 2004
    Date of Patent: March 24, 2009
    Assignees: Hitachi Chemical Co., Ltd., Maxdem Incorporated
    Inventors: Yoshihiro Tsuda, Yoshii Morishita, Satoyuki Nomura, Seiji Tai, Yousuke Hoshi, Shigeaki Funyuu, Farshad J. Motamedi, Li-Sheng Wang
  • Publication number: 20070275628
    Abstract: 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: Application
    Filed: June 4, 2004
    Publication date: November 29, 2007
    Applicants: HITACHI CHEMICAL CO., LTD., MAXDEM INCORPORATED
    Inventors: Yoshihiro Tsuda, Yoshii Morishita, Satoyuki Nomura, Seiji Tai, Yousuke Hoshi, Shigeaki Funyuu, Matthew Marrocco, Farshad Motamedi, Li-Sheng Wang
  • Publication number: 20070003783
    Abstract: 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: Application
    Filed: April 16, 2004
    Publication date: January 4, 2007
    Applicants: Hitachi Chemical Co Ltd, Maxdem Incorporated
    Inventors: Yoshii Morishita, Satoyuki Nomura, Yoshihiro Tsuda, Seiji Tai
  • Publication number: 20060083945
    Abstract: 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: Application
    Filed: October 15, 2004
    Publication date: April 20, 2006
    Applicants: HITACHI CHEMICAL CO. LTD., MAXDEM INCORPORATED
    Inventors: Yoshii Morishita, Satoyuki Nomura, Yoshihiro Tsuda, Seiji Tai, Matthew Marrocco, Farshad Motamedi, Li-Sheng Wang, Yongchao Liang
  • Publication number: 20040131886
    Abstract: 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: Application
    Filed: December 15, 2003
    Publication date: July 8, 2004
    Applicant: Maxdem Incorporated
    Inventors: Matthew L. Marrocco, Farshad J. Motamedi
  • Patent number: 6087467
    Abstract: 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: Grant
    Filed: December 2, 1998
    Date of Patent: July 11, 2000
    Assignee: Maxdem Incorporated
    Inventors: Matthew Louis Marrocco, III, Robert R. Cagne, Mark Steven Trimmer
  • Patent number: 5976437
    Abstract: 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: Grant
    Filed: July 23, 1997
    Date of Patent: November 2, 1999
    Assignee: Maxdem Incorporated
    Inventors: Matthew Louis Marrocco, III, Robert R. Gagne, Mark Steven Trimmer
  • Patent number: 5886130
    Abstract: 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: Grant
    Filed: November 2, 1995
    Date of Patent: March 23, 1999
    Assignee: Maxdem Incorporated
    Inventors: Mark S. Trimmer, Ying Wang, Matthew L. Marrocco III, Virgil J. Lee
  • Patent number: 5869592
    Abstract: 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: Grant
    Filed: August 19, 1991
    Date of Patent: February 9, 1999
    Assignee: Maxdem Incorporated
    Inventors: Robert R. Gagne, Matthew Louis Marrocco III, Mark Steven Trimmer, Neil H. Hendricks
  • Patent number: 5858907
    Abstract: 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: Grant
    Filed: September 18, 1996
    Date of Patent: January 12, 1999
    Assignee: Maxdem, Incorporated
    Inventors: Ying Wang, Matthew L. Marrocco, III, Mark S. Trimmer
  • Patent number: 5830945
    Abstract: 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: Grant
    Filed: August 23, 1996
    Date of Patent: November 3, 1998
    Assignee: Maxdem, Incorporated
    Inventors: Robert R. Gagne, Matthew Louis Marrocco, III, Mark Steven Trimmer, Neil H. Hendricks
  • Patent number: 5827927
    Abstract: 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: Grant
    Filed: May 14, 1996
    Date of Patent: October 27, 1998
    Assignee: Maxdem Incorporated
    Inventors: Robert R. Gagne, Matthew Louis Marrocco, III, Mark Steven Trimmer, Neil H. Hendricks
  • Patent number: 5824744
    Abstract: 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: Grant
    Filed: June 1, 1995
    Date of Patent: October 20, 1998
    Assignee: Maxdem Incorporated
    Inventors: Robert R. Gagne, Matthew Louis Marrocco, III, Mark Steven Trimmer, Neil H. Hendricks
  • Patent number: 5789521
    Abstract: 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: Grant
    Filed: June 2, 1995
    Date of Patent: August 4, 1998
    Assignee: Maxdem Incorporated
    Inventors: Matthew Louis Marrocco, III, Robert R. Gagne, Mark Steven Trimmer
  • Patent number: 5760131
    Abstract: 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: Grant
    Filed: June 2, 1995
    Date of Patent: June 2, 1998
    Assignee: Maxdem Incorporated
    Inventors: Matthew Louis Marrocco, III, Robert R. Gagne, Mark Steven Trimmer
  • Patent number: 5756581
    Abstract: 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: Grant
    Filed: June 2, 1995
    Date of Patent: May 26, 1998
    Assignee: Maxdem Incorporated
    Inventors: Matthew Louis Marrocco, III, Robert R. Gagne, Mark Steven Trimmer
  • Patent number: 5731400
    Abstract: 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: Grant
    Filed: June 2, 1995
    Date of Patent: March 24, 1998
    Assignee: Maxdem Incorporated
    Inventors: Matthew Louis Marrocco, III, Robert R. Gagne, Mark Steven Trimmer, Ying Wang