Patents by Inventor Koro Shirane
Koro Shirane 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: 7763365Abstract: A polymer light emitting material, wherein the material has a light emitting mechanism based on transition from an excited triplet state to a ground state or transition through an excited triplet state to a ground state of an electron energy level, and the material comprises a nonionic light emitting part which constitutes a part of the polymer or is bound to the polymer. The polymer light emitting material exhibits high light emission efficiency above 5%, which is the limit of external quantum efficiency of fluorescence and can be designed so as to have a large area and hence are suitable for mass production of organic light emitting devices.Type: GrantFiled: February 6, 2008Date of Patent: July 27, 2010Assignee: Showa Denko K.K.Inventors: Masataka Takeuchi, Shuichi Naijo, Naoko Ito, Koro Shirane, Takashi Igarashi, Yoshiaki Takahashi, Motoaki Kamachi
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Patent number: 7736757Abstract: A polymer light emitting material, wherein the material has a light emitting mechanism based on transition from an excited triplet state to a ground state or transition through an excited triplet state to a ground state of an electron energy level, and the material comprises a nonionic light emitting part which constitutes a part of the polymer or is bound to the polymer. The polymer light emitting material exhibits high light emission efficiency above 5%, which is the limit of external quantum efficiency of fluorescence and can be designed so as to have a large area and hence are suitable for mass production of organic light emitting devices.Type: GrantFiled: February 6, 2008Date of Patent: June 15, 2010Assignee: Showa Denko K.K.Inventors: Masataka Takeuchi, Shuichi Naijo, Naoko Ito, Koro Shirane, Takashi Igarashi, Yoshiaki Takahashi, Motoaki Kamachi
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Patent number: 7635527Abstract: A polymer light emitting material, wherein the material has a light emitting mechanism based on transition from an excited triplet state to a ground state or transition through an excited triplet state to a ground state of an electron energy level, and the material comprises a nonionic light emitting part which constitutes a part of the polymer or is bound to the polymer. The polymer light emitting material exhibits high light emission efficiency above 5%, which is the limit of external quantum efficiency of fluorescence and can be designed so as to have a large area and hence are suitable for mass production of organic light emitting devices.Type: GrantFiled: February 6, 2008Date of Patent: December 22, 2009Assignee: Showa Denko K.K.Inventors: Masataka Takeuchi, Shuichi Naijo, Naoko Ito, Koro Shirane, Takeshi Igarashi, Yoshiaki Takahashi, Motoaki Kamachi
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Patent number: 7582363Abstract: The present invention provides an organic polymer light-emitting element material having a gold complex structure as a part of the side chain or crosslinking group as represented by formulae (5) and (8) and an organic polymer light-emitting element comprising layer(s) comprising the organic polymer light-emitting element material. The present invention provides a polymer-based phosphorescent material useful for a multicolor or white light-emitting organic EL device having high luminous efficiency and capable of large-area formation and mass production.Type: GrantFiled: April 28, 2004Date of Patent: September 1, 2009Assignee: Showa Denko K.K.Inventors: Yoshiaki Takahashi, Isamu Taguchi, Koro Shirane
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Publication number: 20080290792Abstract: A polymer light emitting material, wherein the material has a light emitting mechanism based on transition from an excited triplet state to a ground state or transition through an excited triplet state to a ground state of an electron energy level, and the material comprises a nonionic light emitting part which constitutes a part of the polymer or is bound to the polymer. The polymer light emitting material exhibits high light emission efficiency above 5%, which is the limit of external quantum efficiency of fluorescence and can be designed so as to have a large area and hence are suitable for mass production of organic light emitting devices.Type: ApplicationFiled: February 6, 2008Publication date: November 27, 2008Applicant: Showa Denko K.K.Inventors: Masataka TAKEUCHI, Shuichi Naijo, Naoko Ito, Koro Shirane, Takashi Igarashi, Yoshiaki Takahashi, Motoaki Kamachi
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Publication number: 20080290793Abstract: A polymer light emitting material, wherein the material has a light emitting mechanism based on transition from an excited triplet state to a ground state or transition through an excited triplet state to a ground state of an electron energy level, and the material comprises a nonionic light emitting part which constitutes a part of the polymer or is bound to the polymer. The polymer light emitting material exhibits high light emission efficiency above 5%, which is the limit of external quantum efficiency of fluorescence and can be designed so as to have a large area and hence are suitable for mass production of organic light emitting devices.Type: ApplicationFiled: February 6, 2008Publication date: November 27, 2008Applicant: Showa Denko K.K.Inventors: Masataka Takeuchi, Shuichi Naijo, Naoko Ito, Koro Shirane, Takeshi Igarashi, Yoshiaki Takahashi, Motoaki Kamachi
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Patent number: 7396598Abstract: A polymer light emitting material, wherein the material has a light emitting mechanism based on transition from an excited triplet state to a ground state or transition through an excited triplet state to a ground state of an electron energy level, and the material comprises a nonionic light emitting part which constitutes a part of the polymer or is bound to the polymer. The polymer light emitting material exhibits high light emission efficiency above 5%, which is the limit of external quantum efficiency of fluorescence and can be designed so as to have a large area and hence are suitable for mass production of organic light emitting devices.Type: GrantFiled: June 20, 2002Date of Patent: July 8, 2008Assignee: Showa Denko K.K.Inventors: Masataka Takeuchi, Shuichi Naijo, Naoko Ito, Koro Shirane, Takeshi Igarashi, Yoshiaki Takahashi, Motoaki Kamachi
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Publication number: 20080152947Abstract: A polymer light emitting material, wherein the material has a light emitting mechanism based on transition from an excited triplet state to a ground state or transition through an excited triplet state to a ground state of an electron energy level, and the material comprises a nonionic light emitting part which constitutes a part of the polymer or is bound to the polymer. The polymer light emitting material exhibits high light emission efficiency above 5%, which is the limit of external quantum efficiency of fluorescence and can be designed so as to have a large area and hence are suitable for mass production of organic light emitting devices.Type: ApplicationFiled: February 6, 2008Publication date: June 26, 2008Applicant: Showa Denko K.K.Inventors: Masataka Takeuchi, Shuichi Naijo, Naoko Ito, Koro Shirane, Takeshi Igarashi, Yoshiaki Takahashi, Motoaki Kamachi
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Patent number: 7250226Abstract: An organic polymeric phosphorescent compound and an organic light-emitting device employing the organic polymeric phosphorescent compound. The phosphorescent compound is a neutral organic polymeric phosphorescent compound emitting phosphorescence and used in an organic light-emitting device, and includes a phosphorescent unit and a carrier transporting unit.Type: GrantFiled: August 30, 2002Date of Patent: July 31, 2007Assignees: Nippon Hoso Kyokai, Showa Denko K.K.Inventors: Shizuo Tokito, Mitsunori Suzuki, Isao Tanaka, Youji Inoue, Koro Shirane, Masataka Takeuchi, Naoko Ito
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Patent number: 7223483Abstract: The invention relates to a light-emitting material having high emitting efficiency, high luminance and durability for use in an organic light-emitting device and to an organic electroluminescent (EL) device, in which the light-emitting material is used. The light-emitting material contains a light-emitting substance which is spatially constricted and confined in an order of two dimensions or more, thus providing a high efficient organic light-emitting device based on emission of phosphorescence from an excited triplet state.Type: GrantFiled: February 20, 2002Date of Patent: May 29, 2007Assignee: Showa Denko K.K.Inventors: Koro Shirane, Motoaki Kamachi, Naoko Ito, Tamami Koyama
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Patent number: 7175781Abstract: A solid electrolytic capacitor includes a valve acting metal having microfine pores, a dielectric film formed on a surface of the valve acting metal, and a solid electrolyte layer provided on the dielectric film, in which at least a portion of the solid electrolyte layer is of a lamellar structure. In particular, a solid electrolytic capacitor includes an electrically conducting polymer having a specified condensed ring structure containing (1) a solid electrolyte layer containing a sulfoquinone anion, and (2) a solid electrolyte layer containing an anthracenesulfonate ion and other anion.Type: GrantFiled: September 14, 2004Date of Patent: February 13, 2007Assignee: Showa Denko K.K.Inventors: Hiroshi Konuma, Koro Shirane, Ryuji Monden, Atsushi Sakai, Yuji Furuta, Katsuhiko Yamazaki, Toru Sawaguchi, Hideko Ohata, Yoshiaki Ikenoue
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Publication number: 20060269779Abstract: The present invention provides an organic polymer light-emitting element material having a gold complex structure as a part of the side chain or crosslinking group as represented by formulae (5) and (8) and an organic polymer light-emitting element comprising layer(s) comprising the organic polymer light-emitting element material. The present invention provides a polymer-based phosphorescent material useful for a multicolor or white light-emitting organic EL device having high luminous efficiency and capable of large-area formation and mass production.Type: ApplicationFiled: April 28, 2004Publication date: November 30, 2006Inventors: Yoshiaki Takahashi, Isamu Taguchi, Koro Shirane
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Patent number: 7141081Abstract: The present invention relates to a solid electrolytic capacitor having a masking structure in which the insulation between the anode part and the cathode part can be ensured without fail, to its production method, to a method for coating a masking agent on a solid electrolytic capacitor substrate, and to apparatus therefore. According to the present invention, the masking material covers the dielectric film on the metal material having valve action and sufficiently infiltrates into the core metal made of a metal having valve action while the solid electrolyte is masked by the masking material without fail, so that a solid electrolytic capacitor can be produced that has a reduced leakage current and a reduced stress generated at the reflow treatment or the like.Type: GrantFiled: December 20, 2005Date of Patent: November 28, 2006Assignee: Showa Denko K.K.Inventors: Atsushi Sakai, Ryuji Monden, Hiroshi Nitoh, Toshihiro Okabe, Yuji Furuta, Hideki Ohata, Koro Shirane
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Patent number: 7060205Abstract: The present invention relates to a solid electrolytic capacitor comprising a solid electrolyte layer and an electrically conducting layer comprising metallic powder or an electrically conducting layer comprising an electrically conducting carbon layer and a layer formed thereon and comprising metallic powder in which at least one of said layers contains a rubber-like elastic material; a production process thereof; a solid electrolyte for use in the solid electrolytic capacitor; a production process of the solid electrolyte; an electrically conducting paste for use in the solid electrolytic capacitor; and an electrically carbon conducting paste for use in the solid electrolytic capacitor. The solid electrolytic capacitor of the present invention can be made compact and can be endowed with high-capacitance and low-impedance and is excellent in external force-relaxing properties, productivity, heat resistance and moisture resistance, etc.Type: GrantFiled: May 18, 2004Date of Patent: June 13, 2006Assignee: Showa Denko Kabushiki KaishaInventors: Ryuji Monden, Katsuhiko Yamazaki, Atsushi Sakai, Yuji Furuta, Hideki Ohata, Koro Shirane, Hiroshi Konuma
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Patent number: 7046504Abstract: The present invention relates to a solid electrolytic capacitor having a masking structure in which the insulation between the anode part and the cathode part can be ensured without fail, to its production method, to a method for coating a masking agent on a solid electrolytic capacitor substrate, and to apparatus therefore. According to the present invention, the masking material covers the dielectric film on the metal material having valve action and sufficiently infiltrates into the core metal made of a metal having valve action while the solid electrolyte is masked by the masking material without fail, so that a solid electrolytic capacitor can be produced that has a reduced leakage current and a reduced stress generated at the reflow treatment or the like.Type: GrantFiled: June 28, 2004Date of Patent: May 16, 2006Assignee: Showa Denko K.K.Inventors: Atsushi Sakai, Ryuji Monden, Hiroshi Nitoh, Toshihiro Okabe, Yuji Furuta, Hideki Ohata, Koro Shirane
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Publication number: 20060098394Abstract: The present invention relates to a solid electrolytic capacitor having a masking structure in which the insulation between the anode part and the cathode part can be ensured without fail, to its production method, to a method for coating a masking agent on a solid electrolytic capacitor substrate, and to apparatus therefore. According to the present invention, the masking material covers the dielectric film on the metal material having valve action and sufficiently infiltrates into the core metal made of a metal having valve action while the solid electrolyte is masked by the masking material without fail, so that a solid electrolytic capacitor can be produced that has a reduced leakage current and a reduced stress generated at the reflow treatment or the like.Type: ApplicationFiled: December 20, 2005Publication date: May 11, 2006Inventors: Atsushi Sakai, Ryuji Monden, Hiroshi Nitoh, Toshihiro Okabe, Yuji Furuta, Hideki Ohata, Koro Shirane
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Publication number: 20060009629Abstract: The present invention provides phosphorescent materials and polymer phosphorescent materials that generate lights of various colors including blue, green, yellow, orange and red, which are useful for high performance multicolor organic light-emitting EL devices, and also provides an organic light emitting device material containing a gold complex represented by formulae such as (2) and (6) below (symbols in the formulae are as described in the specification) in which gold is bonded to at least one atom selected from carbon, oxygen and sulfur, and organic light-emitting EL device including the material in its light-emitting layer.Type: ApplicationFiled: November 14, 2003Publication date: January 12, 2006Inventors: Yoshiaki Takahashi, Koro Shirane, Kunio Kondo
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Patent number: 6890363Abstract: The present invention relates to a solid electrolytic capacitor having a masking structure in which the insulation between the anode part and the cathode part can be ensured without fail, to its production method, to a method for coating a masking agent on a solid electrolytic capacitor substrate, and to an apparatus therefor. According to the present invention, the masking material covers the dielectric film on the metal material having valve action and sufficiently infiltrates into the core metal made of a metal having valve action while the solid electrolyte is masked by the masking material without fail, so that a solid electrolytic capacitor can be produced that has a reduced leakage current and a reduced stress generated at the reflow treatment or the like.Type: GrantFiled: May 24, 2000Date of Patent: May 10, 2005Assignee: Showa Denko K.K.Inventors: Atsushi Sakai, Ryuji Monden, Hiroshi Nitoh, Toshihiro Okabe, Yuji Furuta, Hideki Ohata, Koro Shirane
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Publication number: 20050030703Abstract: A solid electrolytic capacitor includes a valve acting metal having microfine pores, a dielectric film formed on a surface of the valve acting metal, and a solid electrolyte layer provided on the dielectric film, in which at least a portion of the solid electrolyte layer is of a lamellar structure. In particular, a solid electrolytic capacitor includes an electrically conducting polymer having a specified condensed ring structure containing (1) a solid electrolyte layer containing a sulfoquinone anion, and (2) a solid electrolyte layer containing an anthracenesulfonate ion and other anion.Type: ApplicationFiled: September 14, 2004Publication date: February 10, 2005Inventors: Hiroshi Konuma, Koro Shirane, Ryuji Monden, Atsushi Sakai, Yuji Furuta, Katsuhiko Yamazaki, Toru Sawaguchi, Hideko Ohata, Yoshiaki Ikenoue
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Publication number: 20040247934Abstract: A polymer light emitting material, wherein the material has a light emitting mechanism based on transition from an excited triplet state to a ground state or transition through an excited triplet state to a ground state of an electron energy level, and the material comprises a nonionic light emitting part which constitutes a part of the polymer or is bound to the polymer. The polymer light emitting material exhibits high light emission efficiency above 5%, which is the limit of external quantum efficiency of fluorescence and can be designed so as to have a large area and hence are suitable for mass production of organic light emitting devices.Type: ApplicationFiled: December 19, 2003Publication date: December 9, 2004Inventors: Masataka Takeuchi, Shuichi Naijo, Naoko Ito, Koro Shirane, Takeshi Igarashi, Yshiaki Takahashi, Motoaki Kamachi