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).
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Patent number: 9260443Abstract: 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: GrantFiled: December 21, 2011Date of Patent: February 16, 2016Assignees: The Regents of the University of California, Mitsubishi Chemical CorporationInventors: Craig J. Hawker, Michael Chabinyc, Sung-Yu Ku, Christopher Liman, Shinji Aramaki, Hengbin Wang, Takaaki Niinomi
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Patent number: 9136489Abstract: 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: GrantFiled: May 1, 2007Date of Patent: September 15, 2015Assignees: Mitsubishi Chemical Corporation, Japan Science and Technology AgencyInventors: Shinji Aramaki, Yoshiharu Sato
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Publication number: 20150122334Abstract: 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: ApplicationFiled: November 28, 2014Publication date: May 7, 2015Applicant: MITSUBISHI CHEMICAL CORPORATIONInventors: Saika Otsubo, Shinji ARAMAKI, Masanori YAMAZAKI, Ritsuko YAMAUCHI, Izuru TAKEI, Takamichi YOKOYAMA, Yoshiharu SATO
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Patent number: 8304283Abstract: 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: GrantFiled: October 13, 2009Date of Patent: November 6, 2012Assignee: Mitsubishi Chemical CorporationInventors: Shinji Aramaki, Noboru Ono
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Publication number: 20120168728Abstract: 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: ApplicationFiled: December 21, 2011Publication date: July 5, 2012Inventors: Craig J. Hawker, Michael Chabinyc, Sung-Yu Ku, Christopher Liman, Shinji Aramaki, Hengbin Wang, Takaaki Niinomi
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Patent number: 8207524Abstract: 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: GrantFiled: August 2, 2007Date of Patent: June 26, 2012Assignee: Mitsubishi Chemical CorporationInventors: Shinji Aramaki, Yoshimasa Sakai
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Patent number: 8178397Abstract: 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: GrantFiled: November 10, 2005Date of Patent: May 15, 2012Assignee: Mitsubishi Chemical CorporationInventors: Shinji Aramaki, Ryuichi Yoshiyama, Akira Ohno, Yoshimasa Sakai
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Patent number: 7834539Abstract: 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: GrantFiled: October 30, 2008Date of Patent: November 16, 2010Assignee: Mitsubishi Chemical CorporationInventors: Keishin Handa, Shinji Aramaki, Tetsuya Aya
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Publication number: 20100029041Abstract: 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: ApplicationFiled: October 13, 2009Publication date: February 4, 2010Applicant: MITSUBISHI CHEMICAL CORPORATIONInventors: Shinji ARAMAKI, Noboru Ono
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Publication number: 20100001264Abstract: 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: ApplicationFiled: August 2, 2007Publication date: January 7, 2010Applicant: Mitsubishi Chemical CorporationInventors: Shinji Aramaki, Yoshimasa Sakai
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Publication number: 20090308458Abstract: 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: ApplicationFiled: May 1, 2007Publication date: December 17, 2009Applicants: MITSUBISHI CHEMICAL CORPORATION, JAPAN SCIENCE AND TECHNOLOGY AGENCYInventors: Shinji Aramaki, Yoshiharu Sato
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Publication number: 20090159876Abstract: 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: ApplicationFiled: September 20, 2006Publication date: June 25, 2009Applicant: MITSUBISHI CHEMICAL CORPORATIONInventors: Yoshihiro Ohba, Kazuaki Sato, Yoshimasa Sakai, Shinji Aramaki
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Publication number: 20090072224Abstract: 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: ApplicationFiled: November 10, 2005Publication date: March 19, 2009Applicant: Mitsubishi Chemical CorporationInventors: Shinji Aramaki, Ryuichi Yoshiyama, Akira Ohno, Yoshimasa Sakai
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Publication number: 20090066220Abstract: 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: ApplicationFiled: October 30, 2008Publication date: March 12, 2009Applicant: MITSUBISHI CHEMICAL CORPORATIONInventors: Keishin Handa, Shinji Aramaki, Tetsuya Aya
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Publication number: 20090066219Abstract: 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: ApplicationFiled: October 30, 2008Publication date: March 12, 2009Applicant: MITSUBISHI CHEMICAL CORPORATIONInventors: Keishin HANDA, Shinji ARAMAKI, Tetsuya AYA
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Patent number: 7462984Abstract: 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: GrantFiled: September 8, 2005Date of Patent: December 9, 2008Assignee: Mitsubishi Chemical CorporationInventors: Keishin Handa, Shinji Aramaki, Tetsuya Aya
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Publication number: 20070145361Abstract: 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: ApplicationFiled: February 5, 2007Publication date: June 28, 2007Applicant: MITSUBISHI CHEMICAL CORPORATIONInventors: Shinji ARAMAKI, Noboru Ono
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Patent number: 7193237Abstract: 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: GrantFiled: March 26, 2003Date of Patent: March 20, 2007Assignee: Mitsubishi Chemical CorporationInventors: Shinji Aramaki, Noboru Ono
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Patent number: 7164190Abstract: 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: GrantFiled: January 31, 2005Date of Patent: January 16, 2007Assignee: Mitsubishi Chemical CorporationInventors: Masahiro Kobashi, Keishin Handa, Shinji Aramaki, Yoshimasa Sakai
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Publication number: 20060049745Abstract: 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: ApplicationFiled: September 8, 2005Publication date: March 9, 2006Inventors: Keishin Handa, Shinji Aramaki, Tetsuya Aya