Patents by Inventor Subramanian Vaidyanathan

Subramanian Vaidyanathan 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: 8436127
    Abstract: The present invention provides a polymer comprising a unit of formula and an electronic device comprising the polymer as semiconducting material.
    Type: Grant
    Filed: April 24, 2012
    Date of Patent: May 7, 2013
    Assignee: BASF SE
    Inventors: Ashok Kumar Mishra, Subramanian Vaidyanathan, Hiroyoshi Noguchi, Florian Dötz, Yucui Guan
  • Patent number: 8431680
    Abstract: The present invention provides a polymer comprising a unit of formula and an electronic device comprising the polymer as semiconducting material.
    Type: Grant
    Filed: April 24, 2012
    Date of Patent: April 30, 2013
    Assignee: BASF SE
    Inventors: Ashok Kumar Mishra, Subramanian Vaidyanathan, Hiroyoshi Noguchi, Florian Doetz, Bo Zhu
  • Patent number: 8404844
    Abstract: The present invention relates to semiconducting compounds, materials prepared from such compounds, methods of preparing such compounds and semiconductor materials, as well as various compositions, composites, and devices that incorporate the compounds and semiconductor materials. The semiconducting compounds can have higher electron-transport efficiency and higher solubility in common solvents compared to related representative compounds.
    Type: Grant
    Filed: February 5, 2009
    Date of Patent: March 26, 2013
    Assignees: BASF SE, Polyera Corporation
    Inventors: Marcel Kastler, Subramanian Vaidyanathan, Florian Doetz, Silke Annika Koehler, He Yan, Antonio Facchetti, Shaofeng Lu, Yan Zheng
  • Patent number: 8394919
    Abstract: The present invention provides a polymer comprising a unit of formula The present invention also provides an electronic device comprising the polymer as semiconducting material.
    Type: Grant
    Filed: April 24, 2012
    Date of Patent: March 12, 2013
    Assignee: BASF SE
    Inventors: Ashok Kumar Mishra, Subramanian Vaidyanathan, Hiroyoshi Noguchi, Florian Dötz, Yucui Guan
  • Publication number: 20120296058
    Abstract: The present invention provides a polymer comprising a unit of formula and an electronic device comprising the polymer as semiconducting material.
    Type: Application
    Filed: April 24, 2012
    Publication date: November 22, 2012
    Applicant: BASF SE
    Inventors: Ashok Kumar MISHRA, Subramanian VAIDYANATHAN, Hiroyoshi NOGUCHI, Florian DÖTZ, Bo Zhu
  • Publication number: 20120277391
    Abstract: The present invention provides a polymer comprising a unit of formula The present invention also provides an electronic device comprising the polymer as semiconducting material.
    Type: Application
    Filed: April 24, 2012
    Publication date: November 1, 2012
    Applicant: BASF SE
    Inventors: Ashok Kumar MISHRA, Subramanian Vaidyanathan, Hiroyoshi Noguchi, Florian Dötz, Yucui Guan
  • Publication number: 20120277404
    Abstract: The present invention provides a polymer comprising a unit of formula and an electronic device comprising the polymer as semiconducting material.
    Type: Application
    Filed: April 24, 2012
    Publication date: November 1, 2012
    Applicant: BASF SE
    Inventors: Ashok Kumar Mishra, Subramanian Vaidyanathan, Hiroyoshi Noguchi, Florian Dötz, Yucui Guan
  • Publication number: 20120217482
    Abstract: Disclosed are new semiconductor materials prepared from dithienylvinylene copolymers with aromatic or heteroaromatic ?-conjugated systems. Such copolymers, with little or no post-deposition heat treatment, can exhibit high charge carrier mobility and/or good current modulation characteristics. In addition, the polymers of the present teachings can possess certain processing advantages such as improved solution-processability and low annealing temperature.
    Type: Application
    Filed: December 16, 2009
    Publication date: August 30, 2012
    Applicants: POLYERA CORPORATION, BASF SE
    Inventors: Ashok Kumar Mishra, Subramanian Vaidyanathan, Hiroyoshi Noguchi, Florian Doetz, Silke Koehler, Marcel Kastler
  • Publication number: 20120171811
    Abstract: A method of fabricating a circuit includes chemically bonding a coating to a plurality of nanoparticles. The nanoparticles are dispersed in a medium comprising organic molecules. An organic semiconductor channel is formed that comprises the medium. A plurality of electrodes is formed over the substrate. The electrodes are located to function as two of a gate electrode, a drain electrode, and a source electrode of a field-effect transistor.
    Type: Application
    Filed: March 14, 2012
    Publication date: July 5, 2012
    Inventors: Oleksandr Sydorenko, Subramanian Vaidyanathan
  • Patent number: 8164087
    Abstract: A composition, comprising a medium of organic molecules, a plurality of nanoparticles dispersed in the medium, and a coating chemically bonded to a surface of the nanoparticles, wherein the composition is a semiconducting solid.
    Type: Grant
    Filed: June 12, 2006
    Date of Patent: April 24, 2012
    Assignee: Alcatel Lucent
    Inventors: Oleksandr Sydorenko, Subramanian Vaidyanathan
  • Publication number: 20120077308
    Abstract: A method includes combining organic semiconductor molecules and plasticizer molecules to form over a substrate a solid organic semiconductor channel. The channel may comprise at least about 50% by weight of the plasticizer molecules.
    Type: Application
    Filed: December 5, 2011
    Publication date: March 29, 2012
    Inventors: Oleksandr Sydorenko, Subramanian Vaidyanathan
  • Publication number: 20120074410
    Abstract: A polymer comprising repeating units A and optionally repeating units B wherein Z=S, Se, N—R and O; W is at each occurrence independently a monocyclic or polycylic moiety optionally substituted with 1-4 Ra groups; Y, at each occurrence, is independently a divalent C1-6 alkyl group, a divalent C1-6 haloalkyl group, or a covalent bond; c is from 1 to 6.
    Type: Application
    Filed: May 26, 2010
    Publication date: March 29, 2012
    Applicants: POLYERA CORPORATION, BASF SE
    Inventors: Ashok Kumar Mishra, Subramanian Vaidyanathan, Hiroyoshi Noguchi, Florian Doetz, Silke Annika Koehler, Marcel Kastler
  • Patent number: 8106386
    Abstract: A composition, comprising a solid mixture of organic semiconductor molecules and plasticizer molecules.
    Type: Grant
    Filed: December 28, 2006
    Date of Patent: January 31, 2012
    Assignee: Alcatel Lucent
    Inventors: Oleksandr Sydorenko, Subramanian Vaidyanathan
  • Publication number: 20110120558
    Abstract: Disclosed are new semiconductor materials prepared from rylene-(?-acceptor) copolymers. Such copolymers can exhibit high n-type carrier mobility and/or good current modulation characteristics. In addition, the polymers of the present teachings can possess certain processing advantages such as solution-processability and/or good stability at ambient conditions.
    Type: Application
    Filed: February 5, 2009
    Publication date: May 26, 2011
    Inventors: Antonio Facchetti, Zhihua Chen, He Yan, Shaofeng Lu, Tobin J. Marks, Yan Zheng, Marcel Kastler, Subramanian Vaidyanathan, Florian Doetz, Silke Annika Koehler
  • Publication number: 20100319778
    Abstract: The present teachings provide semiconducting compounds, materials prepared from such compounds, methods of preparing such compounds and semiconductor materials, as well as various compositions, composites, and devices that incorporate the compounds and semiconductor materials. Specifically, compounds of the present teachings can have higher electron-transport efficiency and higher solubility in common solvents compared to related representative compounds.
    Type: Application
    Filed: February 5, 2009
    Publication date: December 23, 2010
    Applicants: BASF SE, POLYERA CORPORATION
    Inventors: Marcel Kastler, Subramanian Vaidyanathan, Florian Doetz, Silke Annika Koehler, He Yan, Antonio Facchetti, Shaofeng Lu, Yan Zheng
  • Patent number: 7569415
    Abstract: Techniques including steps of: providing a support body; forming an organic semiconductor composition body including an organic semiconductor composition on the support body, no more than 10% by weight of the organic semiconductor composition being pentacene; providing a first organic dielectric composition mobilized in a first liquid medium, the organic semiconductor composition being insoluble in the first liquid medium; and forming a first organic dielectric composition body from the first organic dielectric composition on the organic semiconductor composition body. Techniques in which an organic semiconductor composition body is formed on an organic dielectric composition body. Apparatus having an organic dielectric composition body on an organic semiconductor composition body.
    Type: Grant
    Filed: September 30, 2005
    Date of Patent: August 4, 2009
    Assignees: Alcatel-Lucent USA Inc., BASF Societas Europaea
    Inventors: Florian Dötz, Howard E. Katz, Jimmy Granstrom, Elsa Reichmanis, Subramanian Vaidyanathan, Ingolf Hennig, Frauke Richter
  • Patent number: 7488834
    Abstract: A molecule including a chain-like core region having two ends and having at least three conjugated aromatic rings; and including at the two ends, branched groups R1 and R2 respectively, each including a C5- to C20-alkyl group. A semiconducting composition including the molecule.
    Type: Grant
    Filed: September 30, 2005
    Date of Patent: February 10, 2009
    Assignees: Alcatel-Lucent USA Inc., BASF Societas Europea
    Inventors: Florian Dötz, Howard E. Katz, Elsa Reichmanis, Subramanian Vaidyanathan, Ingolf Hennig
  • Publication number: 20080157063
    Abstract: A composition, comprising a solid mixture of organic semiconductor molecules and plasticizer molecules.
    Type: Application
    Filed: December 28, 2006
    Publication date: July 3, 2008
    Applicant: Lucent Technologies Inc.
    Inventors: Oleksandr Sydorenko, Subramanian Vaidyanathan
  • Patent number: 7309876
    Abstract: A composition, comprising organic polymer molecules, and organic nonpolymeric molecules, wherein the composition is a semiconducting solid. The composition includes a distribution of crystal domains of the polymer molecules and inter-domain regions between the crystal domains, a concentration of polymer molecules being higher in the crystal domains than in the inter-domain regions, and a concentration of nonpolymeric molecules being higher in the inter-domain regions than in the crystal domains.
    Type: Grant
    Filed: February 27, 2006
    Date of Patent: December 18, 2007
    Assignee: Lucent Technologies Inc.
    Inventors: Elsa Reichmanis, Oleksander Sydorenko, Subramanian Vaidyanathan
  • Publication number: 20070284570
    Abstract: A composition, comprising a medium of organic molecules, a plurality of nanoparticles dispersed in the medium, and a coating chemically bonded to a surface of the nanoparticles, wherein the composition is a semiconducting solid.
    Type: Application
    Filed: June 12, 2006
    Publication date: December 13, 2007
    Applicant: Lucent Technologies Inc.
    Inventors: Oleksander Sydorenko, Subramanian Vaidyanathan