Patents by Inventor Shinji Aramaki

Shinji Aramaki 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: 9260443
    Abstract: A method of fabricating an organic device is provided comprising providing a first solution comprising an organic semiconductor or a precursor thereof; a solvent and a decomposable polymer additive, where the polymer additive is heated so that it decomposes into gas. The method is applicable to large scale fabrication of OLEDs, OPVs and OFET devices.
    Type: Grant
    Filed: December 21, 2011
    Date of Patent: February 16, 2016
    Assignees: The Regents of the University of California, Mitsubishi Chemical Corporation
    Inventors: Craig J. Hawker, Michael Chabinyc, Sung-Yu Ku, Christopher Liman, Shinji Aramaki, Hengbin Wang, Takaaki Niinomi
  • Patent number: 9136489
    Abstract: The objects are to provide a method for producing a durable organic photoelectric conversion device by a coating process or to produce an organic photoelectric conversion device superior in photoelectric conversion characteristics to the conventional devices. In the production method for an organic photoelectric conversion device including a substrate, a pair of electrodes which are formed on the substrate and at least one of which is transparent, and an active layer formed between the pair of electrodes, the active layer is formed by coating; and the active layer contains a pigment.
    Type: Grant
    Filed: May 1, 2007
    Date of Patent: September 15, 2015
    Assignees: Mitsubishi Chemical Corporation, Japan Science and Technology Agency
    Inventors: Shinji Aramaki, Yoshiharu Sato
  • Publication number: 20150122334
    Abstract: A method for producing a semiconductor layer containing a metal oxide, which comprises: coating an ink containing a specific metal salt of unsaturated carboxylic acid on a base material; and conducting a heat treatment after the coating.
    Type: Application
    Filed: November 28, 2014
    Publication date: May 7, 2015
    Applicant: MITSUBISHI CHEMICAL CORPORATION
    Inventors: Saika Otsubo, Shinji ARAMAKI, Masanori YAMAZAKI, Ritsuko YAMAUCHI, Izuru TAKEI, Takamichi YOKOYAMA, Yoshiharu SATO
  • Patent number: 8304283
    Abstract: An organic semiconductor material comprising a compound which has a generalized porphyrin skeleton and which has a molecular structure such that the distance from the generalized porphyrin ring plane to the center of each atom forming the generalized porphyrin skeleton, is not more than 1A.
    Type: Grant
    Filed: October 13, 2009
    Date of Patent: November 6, 2012
    Assignee: Mitsubishi Chemical Corporation
    Inventors: Shinji Aramaki, Noboru Ono
  • Publication number: 20120168728
    Abstract: A method of fabricating an organic device is provided comprising providing a first solution comprising an organic semiconductor or a precursor thereof; a solvent and a decomposable polymer additive, where the polymer additive is heated so that it decomposes into gas. The method is applicable to large scale fabrication of OLEDs, OPVs and OFET devices.
    Type: Application
    Filed: December 21, 2011
    Publication date: July 5, 2012
    Inventors: Craig J. Hawker, Michael Chabinyc, Sung-Yu Ku, Christopher Liman, Shinji Aramaki, Hengbin Wang, Takaaki Niinomi
  • Patent number: 8207524
    Abstract: Provided is an insulating layer that can improve device characteristics of an electronic device including the insulating layer. The insulating layer contains a polymer insulating substance having repeating units represented by the following formula: wherein Ra represents a direct bond or any linking group, Ar represents a divalent aromatic group optionally having a substituent, and Rb represents a hydrogen atom, a fluorine atom, or a univalent organic group.
    Type: Grant
    Filed: August 2, 2007
    Date of Patent: June 26, 2012
    Assignee: Mitsubishi Chemical Corporation
    Inventors: Shinji Aramaki, Yoshimasa Sakai
  • Patent number: 8178397
    Abstract: A field effect transistor including a gate insulation portion, an organic semiconductor portion, a source electrode and a drain electrode, wherein when a voltage is applied to the gate at 70° C. for 5.0±0.1 hours so that the field strength in the gate insulation portion would be 100±5 MV/m, the change in the threshold voltage is within 5 V. The organic semiconductor portion has a high driving stability, of which the change in characteristics by driving is thereby small.
    Type: Grant
    Filed: November 10, 2005
    Date of Patent: May 15, 2012
    Assignee: Mitsubishi Chemical Corporation
    Inventors: Shinji Aramaki, Ryuichi Yoshiyama, Akira Ohno, Yoshimasa Sakai
  • Patent number: 7834539
    Abstract: The electroluminescent device successively comprises a cathode, an electroluminescent layer, a transparent electrode layer, an evanescent light-scattering layer comprising a matrix composed of a low-refractive material containing light-scattering particles, and a transparent sheet/plate. Such an electroluminescent device is decreased in total reflection not only at a boundary surface between a transparent substrate and an outside air layer but also at a boundary surface of the transparent electrode layer on its light extraction side, and therefore, is considerably improved in light extraction efficiency. In addition, in the electroluminescent device provided with a barrier layer, the transparent electrode layer and the electroluminescent layer can be well protected so that deterioration of electroluminescent pigments and occurrence of dark spots can be effectively prevented, resulting in enhanced-life of the device.
    Type: Grant
    Filed: October 30, 2008
    Date of Patent: November 16, 2010
    Assignee: Mitsubishi Chemical Corporation
    Inventors: Keishin Handa, Shinji Aramaki, Tetsuya Aya
  • Publication number: 20100029041
    Abstract: An organic semiconductor material comprising a compound which has a generalized porphyrin skeleton and which has a molecular structure such that the distance from the generalized porphyrin ring plane to the center of each atom forming the generalized porphyrin skeleton, is not more than 1A.
    Type: Application
    Filed: October 13, 2009
    Publication date: February 4, 2010
    Applicant: MITSUBISHI CHEMICAL CORPORATION
    Inventors: Shinji ARAMAKI, Noboru Ono
  • Publication number: 20100001264
    Abstract: Provided is an insulating layer that can improve device characteristics of an electronic device including the insulating layer. The insulating layer contains a polymer insulating substance having repeating units represented by the following formula: wherein Ra represents a direct bond or any linking group, Ar represents a divalent aromatic group optionally having a substituent, and Rb represents a hydrogen atom, a fluorine atom, or a univalent organic group.
    Type: Application
    Filed: August 2, 2007
    Publication date: January 7, 2010
    Applicant: Mitsubishi Chemical Corporation
    Inventors: Shinji Aramaki, Yoshimasa Sakai
  • Publication number: 20090308458
    Abstract: The objects are to provide a method for producing a durable organic photoelectric conversion device by a coating process or to produce an organic photoelectric conversion device superior in photoelectric conversion characteristics to the conventional devices.
    Type: Application
    Filed: May 1, 2007
    Publication date: December 17, 2009
    Applicants: MITSUBISHI CHEMICAL CORPORATION, JAPAN SCIENCE AND TECHNOLOGY AGENCY
    Inventors: Shinji Aramaki, Yoshiharu Sato
  • Publication number: 20090159876
    Abstract: Disclosed is an adequately stable organic semiconductor material which can be used in a coating process while having high regularity and crystallinity. For obtaining such an organic semiconductor material, there is used a compound wherein 6-20 five-membered and/or six-membered aromatic rings are bound. This compound contains a partial structure represented by the formula (1) below, while having a mobility of not less than 1.0×10?3 cm2/Vs and an ionization potential in the solid state of not less than 4.8 eV and not more than 5.6 eV. (1) In the formula, R1 and R2 independently represent a hydrogen atom or a monovalent organic group. In this connection, at least one of R1 and R2 is an optionally substituted aromatic group.
    Type: Application
    Filed: September 20, 2006
    Publication date: June 25, 2009
    Applicant: MITSUBISHI CHEMICAL CORPORATION
    Inventors: Yoshihiro Ohba, Kazuaki Sato, Yoshimasa Sakai, Shinji Aramaki
  • Publication number: 20090072224
    Abstract: A field effect transistor including a gate isulation portion, an organic semiconductor portion, a source electrode and a drain electrode, wherein when a voltage is applied to the gate at 70° C. for 5.0±0.1 hours so that the field strength in the gate insulation portion would be 100±5 MV/m, the change in the threshold voltage is within 5 V. The organic semiconductor portion has a high driving stability, of which the change in characteristics by driving is thereby small.
    Type: Application
    Filed: November 10, 2005
    Publication date: March 19, 2009
    Applicant: Mitsubishi Chemical Corporation
    Inventors: Shinji Aramaki, Ryuichi Yoshiyama, Akira Ohno, Yoshimasa Sakai
  • Publication number: 20090066220
    Abstract: The electroluminescent device successively comprises a cathode, an electroluminescent layer, a transparent electrode layer, an evanescent light-scattering layer comprising a matrix composed of a low-refractive material containing light-scattering particles, and a transparent sheet/plate. Such an electroluminescent device is decreased in total reflection not only at a boundary surface between a transparent substrate and an outside air layer but also at a boundary surface of the transparent electrode layer on its light extraction side, and therefore, is considerably improved in light extraction efficiency. In addition, in the electroluminescent device provided with a barrier layer, the transparent electrode layer and the electroluminescent layer can be well protected so that deterioration of electroluminescent pigments and occurrence of dark spots can be effectively prevented, resulting in enhanced-life of the device.
    Type: Application
    Filed: October 30, 2008
    Publication date: March 12, 2009
    Applicant: MITSUBISHI CHEMICAL CORPORATION
    Inventors: Keishin Handa, Shinji Aramaki, Tetsuya Aya
  • Publication number: 20090066219
    Abstract: The electroluminescent device successively comprises a cathode, an electroluminescent layer, a transparent electrode layer, an evanescent light-scattering layer comprising a matrix composed of a low-refractive material containing light-scattering particles, and a transparent sheet/plate. Such an electroluminescent device is decreased in total reflection not only at a boundary surface between a transparent substrate and an outside air layer but also at a boundary surface of the transparent electrode layer on its light extraction side, and therefore, is considerably improved in light extraction efficiency. In addition, in the electroluminescent device provided with a barrier layer, the transparent electrode layer and the electroluminescent layer can be well protected so that deterioration of electroluminescent pigments and occurrence of dark spots can be effectively prevented, resulting in enhanced life of the device.
    Type: Application
    Filed: October 30, 2008
    Publication date: March 12, 2009
    Applicant: MITSUBISHI CHEMICAL CORPORATION
    Inventors: Keishin HANDA, Shinji ARAMAKI, Tetsuya AYA
  • Patent number: 7462984
    Abstract: The electroluminescent device successively comprises a cathode, an electroluminescent layer, a transparent electrode layer, an evanescent light-scattering layer comprising a matrix composed of a low-refractive material containing light-scattering particles, and a transparent sheet/plate. Such an electroluminescent device is decreased in total reflection not only at a boundary surface between a transparent substrate and an outside air layer but also at a boundary surface of the transparent electrode layer on its light extraction side, and therefore, is considerably improved in light extraction efficiency. In addition, in the electroluminescent device provided with a barrier layer, the transparent electrode layer and the electroluminescent layer can be well protected so that deterioration of electroluminescent pigments and occurrence of dark spots can be effectively prevented, resulting in enhanced life of the device.
    Type: Grant
    Filed: September 8, 2005
    Date of Patent: December 9, 2008
    Assignee: Mitsubishi Chemical Corporation
    Inventors: Keishin Handa, Shinji Aramaki, Tetsuya Aya
  • Publication number: 20070145361
    Abstract: An organic semiconductor material comprising a compound which has a generalized porphyrin skeleton and which has a molecular structure such that the distance from the generalized porphyrin ring plane to the center of each atom forming the generalized porphyrin skeleton, is not more than 1 ?
    Type: Application
    Filed: February 5, 2007
    Publication date: June 28, 2007
    Applicant: MITSUBISHI CHEMICAL CORPORATION
    Inventors: Shinji ARAMAKI, Noboru Ono
  • Patent number: 7193237
    Abstract: An organic semiconductor material comprising a compound which has a generalized porphyrin skeleton and which has a molecular structure such that the distance from the generalized porphyrin ring plane to the center of each atom forming the generalized porphyrin skeleton, is not more than 1 ?.
    Type: Grant
    Filed: March 26, 2003
    Date of Patent: March 20, 2007
    Assignee: Mitsubishi Chemical Corporation
    Inventors: Shinji Aramaki, Noboru Ono
  • Patent number: 7164190
    Abstract: A field effect transistor comprising, as provided on a support substrate, an insulation layer, a gate electrode and an organic semiconductor layer separated by the insulation layer, a source electrode and a drain electrode provided so as to contact the organic semiconductor layer, wherein elongation ?1 (%) at the yield point of the insulation layer is larger than elongation ?2 (%) at the yield point of the support substrate.
    Type: Grant
    Filed: January 31, 2005
    Date of Patent: January 16, 2007
    Assignee: Mitsubishi Chemical Corporation
    Inventors: Masahiro Kobashi, Keishin Handa, Shinji Aramaki, Yoshimasa Sakai
  • Publication number: 20060049745
    Abstract: The electroluminescent device successively comprises a cathode, an electroluminescent layer, a transparent electrode layer, an evanescent light-scattering layer comprising a matrix composed of a low-refractive material containing light-scattering particles, and a transparent sheet/plate. Such an electroluminescent device is decreased in total reflection not only at a boundary surface between a transparent substrate and an outside air layer but also at a boundary surface of the transparent electrode layer on its light extraction side, and therefore, is considerably improved in light extraction efficiency. In addition, in the electroluminescent device provided with a barrier layer, the transparent electrode layer and the electroluminescent layer can be well protected so that deterioration of electroluminescent pigments and occurrence of dark spots can be effectively prevented, resulting in enhanced life of the device.
    Type: Application
    Filed: September 8, 2005
    Publication date: March 9, 2006
    Inventors: Keishin Handa, Shinji Aramaki, Tetsuya Aya