Patents by Inventor Tadayoshi Ozaki
Tadayoshi Ozaki 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: 7659410Abstract: Provided are a thiophene-containing compound represented by the following formula (X-1), and an organic electroluminescent device that includes a pair of electrodes and an organic compound layer disposed therebetween. The organic compound layer includes a charge-transporting polyester having a repeating structure containing at least one structure selected from the structures represented by the following formulae (I-1) and (I-2) as its partial structure. In formula (X-1), Ar1 represents a substituted or unsubstituted monovalent aromatic group; and R1 to R4 each independently represent a hydrogen atom, a substituted or unsubstituted alkyl group, a substituted or unsubstituted aryl group, or a substituted or unsubstituted aralkyl group; and n? is an integer of 1 to 5.Type: GrantFiled: December 12, 2006Date of Patent: February 9, 2010Assignee: Fuji Xerox Co., Ltd.Inventors: Yoshihiro Ohba, Kazuaki Sato, Mieko Seki, Hidekazu Hirose, Takeshi Agata, Koji Horiba, Akira Imai, Tadayoshi Ozaki, Yohei Nishino, Hirohito Yoneyama, Daisuke Okuda, Toru Ishii, Kiyokazu Mashimo, Katsuhiro Sato
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Publication number: 20090191361Abstract: A liquid crystal-containing composition includes a microcapsule. In the microcapsule, a liquid crystal is encapsulated by a shell material component containing polyurea. Monomer components included in the polyurea include a polyisocyanate component, a high molecular weight polyamine component and a low molecular weight polyamine component.Type: ApplicationFiled: October 8, 2008Publication date: July 30, 2009Applicant: FUJI XEROX CO., LTD.Inventors: Naoki HIJI, Takeo KAKINUMA, Chikara MANABE, Tadayoshi OZAKI
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Publication number: 20090162575Abstract: A liquid crystal-containing composition and a liquid crystal display device including the same, the liquid crystal-containing composition including a cholesteric liquid crystal and microcapsules containing the cholesteric liquid crystal, and having a wall component comprising at least one selected from the group consisting of polyurethane and polyurea, the wall component further including a first isocyanurate component having a cyclo ring structure and a second isocyanate component other than the first isocyanurate component.Type: ApplicationFiled: October 7, 2008Publication date: June 25, 2009Applicant: Fuji Xerox Co., Ltd.Inventors: Chikara MANABE, Naoki HIJI, Takeo KAKINUMA, Tadayoshi OZAKI
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Publication number: 20090039774Abstract: An organic electroluminescence element includes a pair of electrodes composed of an anode and a cathode, at least one of which is transparent or semitransparent, and one or more organic compound layers disposed between the pair of electrodes, wherein at least one of the organic compound layers comprises at least one charge-transporting polyester consisting of repeating units containing, as a partial structure, at least one structure represented by the following formula (I-1).Type: ApplicationFiled: March 19, 2008Publication date: February 12, 2009Applicant: FUJI XEROX CO., LTD.Inventors: Koji Horiba, Hidekazu Hirose, Tadayoshi Ozaki, Yohei Nishino, Mieko Seki, Takeshi Agata, Akira Imai, Katsuhiro Sato, Kiyokazu Mashimo, Hirohito Yoneyama, Toru Ishii, Daisuke Okuda
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Publication number: 20090001876Abstract: An organic electroluminescent device, having an organic compound layer including two or more layers including at least a buffer layer and an emitting layer, wherein at least one of the organic compound layers other than the buffer layer contains at least one charge-transporting polyester represented by Formula (I-1) or (I-2), and the buffer layer is formed in contact with an anode and contains a crosslinked compound formed by using at least one charge injection material containing a substituted silicon group and represented by Formula (III).Type: ApplicationFiled: October 24, 2007Publication date: January 1, 2009Inventors: Daisuke Okuda, Katsuhiro Sato, Kiyokazu Mashimo, Takeshi Agata, Toru Ishii, Akira Imai, Tadayoshi Ozaki, Hidekazu Hirose, Hirohito Yoneyama, Mieko Seki, Yohei Nishino, Koji Horiba
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Publication number: 20080311425Abstract: The invention provides an organic electroluminescent device having an electrode pair of an anode and a cathode, at least one of which is transparent or translucent, and an organic compound layer disposed between the anode and the cathode, the organic compound layer having two or more layers including a buffer layer and a light-emitting layer. At least one of the layers of the organic compound layer has a specific charge-transporting polyether. The buffer layer is provided in contact with the anode and having at least a crosslinked compound formed by using at least one charge injection material having a specific substituted silicon group. The invention further provides a display device having at least a substrate, plural organic electroluminescent devices disposed on the substrate in a matrix form, and a driving unit to drive the organic electroluminescent devices, each of the plural organic electroluminescent devices is the organic electroluminescent device.Type: ApplicationFiled: March 7, 2008Publication date: December 18, 2008Applicant: Fuji Xerox Co., Ltd.Inventors: Daisuke OKUDA, Katsuhiro SATO, Yohei NISHINO, Koji HORIBA, Kiyokazu MASHIMO, Takeshi AGATA, Toru ISHII, Akira IMAI, Tadayoshi OZAKI, Hidekazu HIROSE, Hirohito YONEYAMA, Mieko SEKI
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Patent number: 7455916Abstract: An organic electroluminescent element having at least one pair of electrodes including an anode and a cathode, at least one of which having light transmissive, and at least one organic compound layer disposed between the electrodes, wherein the at least one organic compound layer contains at least one kind of non-conjugated polymer having terminal groups, and at least one of terminal groups of the non-conjugated polymer contains a fluorescent substance emitting fluorescence in a solid state.Type: GrantFiled: March 18, 2003Date of Patent: November 25, 2008Assignee: Fuji Xerox Co., Ltd.Inventors: Hidekazu Hirose, Daisuke Okuda, Mieko Seki, Tadayoshi Ozaki, Hirohito Yoneyama, Toru Ishii, Takeshi Agata, Kiyokazu Mashimo, Katsuhiro Sato
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Publication number: 20080238832Abstract: The invention provides an organic electroluminescent device having at least an anode and a cathode forming a pair of electrodes. At least one electrode being transparent or translucent, and a buffer layer and an organic compound layer is disposed between the anode and the cathode. The organic compound layer has one or more layers including at least a light-emitting layer. At least one of the layers of the organic compound layer comprising at least one specific charge-transporting polyether. At least one of the layers having the charge-transporting polyether is provided in contact with the buffer layer. The buffer layer is provided in contact with the anode and has at least one charge injection material selected from the group consisting of an inorganic oxide, an inorganic nitride, and an inorganic oxynitride. The invention further provides a display device using the organic electroluminescent device.Type: ApplicationFiled: March 6, 2008Publication date: October 2, 2008Applicant: Fuji Xerox Co., LtdInventors: Toru Ishii, Katsuhiro Sato, Yohei Nishino, Koji Horiba, Kiyokazu Mashimo, Takeshi Agata, Akira Imai, Tadayoshi Ozaki, Hidekazu Hirose, Daisuke Okuda, Hirohito Yoneyama, Mieko Seki
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Publication number: 20080018240Abstract: An organic electroluminescent device having a pair of electrodes including a positive electrode and a negative electrode at least one of which is transparent or translucent, and one or more organic compound layers interposed between the pair of electrodes, at least one layer of the organic compound layers containing at least one charge transporting polyester having a repeating unit that contains at least one structure selected from structures represented by the following formula (I-1) as a partial structure.Type: ApplicationFiled: May 8, 2007Publication date: January 24, 2008Inventors: Koji Horiba, Hidekazu Hirose, Mieko Seki, Akira Imai, Tadayoshi Ozaki, Takeshi Agata, Katsuhiro Sato, Hirohito Yoneyama, Yohei Nishino, Kiyokazu Mashimo, Daisuke Okuda, Toru Ishii
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Publication number: 20080008884Abstract: A method of producing an organic electroluminescent device includes forming an organic compound layer with an organic compound layer coating liquid that contains an organic compound and an aliphatic ketone solvent. The aliphatic ketone solvent contains about 0.01% by weight or less of an impurity contained ketone structure component.Type: ApplicationFiled: February 7, 2007Publication date: January 10, 2008Inventors: Toru Ishii, Daisuke Okuda, Yohei Nishino, Akira Imai, Tadayoshi Ozaki, Hidekazu Hirose, Mieko Seki, Koji Horiba, Takeshi Agata, Kiyokazu Mashimo, Katsuhiro Sato, Hirohito Yoneyama
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Publication number: 20070292681Abstract: An organic electroluminescence device of the invention includes: an anode; a cathode; and an organic compound layer; the organic compound layer including at least one layer including a charge-transporting polyester; the charge-transporting polyester including repeating units each containing a structure represented by the following formula (I-1) or (I-2); the thickness being about 20 to 100 nm of the nearest layer to the anode of the at least one layer including the charge-transporting polyester; the cathode including a first layer and a second layer; the first layer being in contact with the organic compound layer and including an alkaline metal oxide, alkaline earth metal oxide, alkaline metal halide or alkaline earth metal halide; the second layer being in contact with the first layer and including an alkaline metal or alkaline earth metal.Type: ApplicationFiled: November 9, 2006Publication date: December 20, 2007Applicant: FUJI XEROX CO., LTDInventors: Daisuke Okuda, Toru Ishii, Hirohito Yoneyama, Yohei Nishino, Akira Imai, Tadayoshi Ozaki, Hidekazu Hirose, Mieko Seki, Koji Horiba, Takeshi Agata, Kiyokazu Mashimo, Katsuhiro Sato
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Publication number: 20070281076Abstract: An organic electroluminescent device includes one or more organic compound layers sandwiched between a pair of electrodes, at least one of the electrodes being transparent or semi-transparent, wherein there is provided a layer containing a charge transport polyester comprising a repeating unit containing at least one type selected from structures represented by the following formulae (I-1) and (I-2), as a substructure, so as to be in contact with at least one electrode of the pair of electrodes; and a difference between the ionization potential of the charge transport polyester contained in the layer in contact with the one electrode, and the work function of the surface of the one electrode is within a range of from 0 eV to 0.7 eV.Type: ApplicationFiled: January 16, 2007Publication date: December 6, 2007Inventors: Daisuke Okuda, Katsuhiro Sato, Kiyokazu Mashimo, Takeshi Agata, Toru Ishii, Akira Imai, Tadayoshi Ozaki, Hidekazu Hirose, Hirohito Yoneyama, Mieko Seki, Yohei Nishino, Koji Horiba
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Publication number: 20070252519Abstract: Provided are a thiophene-containing compound represented by the following formula (X-1), and an organic electroluminescent device that includes a pair of electrodes and an organic compound layer disposed therebetween. The organic compound layer includes a charge-transporting polyester having a repeating structure containing at least one structure selected from the structures represented by the following formulae (I-1) and (I-2) as its partial structure. In formula (X-1), Ar1 represents a substituted or unsubstituted monovalent aromatic group; and R1 to R4 each independently represent a hydrogen atom, a substituted or unsubstituted alkyl group, a substituted or unsubstituted aryl group, or a substituted or unsubstituted aralkyl group; and n? is an integer of 1 to 5.Type: ApplicationFiled: December 12, 2006Publication date: November 1, 2007Applicant: FUJI XEROX CO., LTD.Inventors: Yoshihiro Ohba, Kazuaki Sato, Mieko Seki, Hidekazu Hirose, Takeshi Agata, Koji Horiba, Akira Imai, Tadayoshi Ozaki, Yohei Nishino, Hirohito Yoneyama, Daisuke Okuda, Toru Ishii, Kiyokazu Mashimo, Katsuhiro Sato
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Publication number: 20070148493Abstract: The invention provides an organic electroluminescence device having a pair of electrodes at least one of which is transparent or translucent and plural organic compound layers positioned between the pair of electrodes, at least one of the plural organic compound layers being a hole transport layer in which an electron transport material is mixed with at least one hole transport polymer, and at least one of the plural organic compound layers containing a luminescent material.Type: ApplicationFiled: December 5, 2006Publication date: June 28, 2007Inventors: Hirohito Yoneyama, Yohei Nishino, Mieko Seki, Daisuke Okuda, Hidekazu Hirose, Tadayoshi Ozaki, Takeshi Agata, Toru Ishii, Kiyokazu Mashimo, Katsuhiro Sato, Koji Horiba, Akira Imai
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Patent number: 7183009Abstract: Disclosed is an organic electroluminescent element comprising at least one pair of electrodes comprising an anode and a cathode, at least one of which having light permeability, and one or a plurality of organic compound layers held between the electrodes, wherein at least one organic compound layer contains at least one kind of charge-transferable polyether comprising a repetition unit containing at least one partial structure selected from the group consisting of the following general formulae (I-1) and (I-2)Type: GrantFiled: March 4, 2003Date of Patent: February 27, 2007Assignee: Fuji Xerox Co., Ltd.Inventors: Hidekazu Hirose, Mieko Seki, Hirohito Yoneyama, Daisuke Okuda, Tadayoshi Ozaki, Takeshi Agata, Toru Ishii, Kiyokazu Mashimo, Katsuhiro Sato
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Publication number: 20070021572Abstract: The invention provides a diamine compound polymer having a 1,3-phenylene group selected from structural formulae represented by formulae (I-1) and (I-2): where, in the formulae (I-1) and (I-2), A represents a structure represented by the following formula (II); R represents a hydrogen atom, an alkyl group, a substituted or non-substituted aryl group, or a substituted or non-substituted aralkyl group; Y represents a divalent alcoholic residue; Z represents a divalent carboxylic acid residue; B and B? independently represent —O—(Y—O)n—R or —O—(Y—O)n—CO—Z—CO—O—R? (where R, Y and Z have the same meanings as described above, and R? represents an alkyl group, a substituted or non-substituted aryl group, or a substituted or non-substituted aralkyl group); n represents an integer of 1 to 5; and p represents an integer of 5 to 5000; where, in the formula (II), Ar represents a substituted or non-substituted aromatic group; X represents a substituted or non-substituted divalent 1,3-phenylene group; T representsType: ApplicationFiled: April 7, 2006Publication date: January 25, 2007Inventors: Daisuke Okuda, Katsuhiro Sato, Koji Horiba, Kiyokazu Mashimo, Takeshi Agata, Toru Ishii, Tadayoshi Ozaki, Hidekazu Hirose, Hirohito Yoneyama, Mieko Seki, Yohei Nishino
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Patent number: 7166859Abstract: The present invention provides an organic semiconductor transistor element that includes at least a source electrode, a drain electrode, an organic semiconductor formed to be electrically conductive to the source electrode and the drain electrode, and a gate electrode which is both insulated from the organic semiconductor and capable of applying an electric field. The organic semiconductor includes a polymer compound containing an aromatic tertiary amine.Type: GrantFiled: October 7, 2004Date of Patent: January 23, 2007Assignee: Fuji Xerox Co., Ltd.Inventors: Hidekazu Hirose, Mieko Seki, Daisuke Okuda, Tadayoshi Ozaki, Takeshi Agata, Toru Ishii, Kiyokazu Mashimo, Katsuhiro Sato, Hiroaki Moriyama, Yohei Nishino
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Publication number: 20060267487Abstract: A method for producing a polymer organic electronic material comprising: synthesizing a polymer organic electronic material by condensing a precursor monomer for the polymer organic electronic material in the presence of a metal catalyst, preparing a polymer organic electronic material solution by dissolving the polymer organic electronic material in an organic solvent, and removing metal ions, which originate from the metal catalyst, from the polymer organic electronic material solution by using an ion exchange resin; a polymer organic electronic material which can be obtained by the method; and an organic electroluminescent device which uses the polymer organic electronic material.Type: ApplicationFiled: February 10, 2006Publication date: November 30, 2006Inventors: Tadayoshi Ozaki, Mieko Seki, Yohei Nishino, Koji Horiba, Hirohito Yoneyama, Daisuke Okuda, Hidekazu Hirose, Takeshi Agata, Toru Ishii, Kiyokazu Mashimo, Katsuhiro Sato, Hiroaki Moriyama
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Patent number: 7060783Abstract: The present invention provides a diamine compound polymer and a method for producing the diamine compound polymer. The diamine compound polymer of the present invention has a condensed aromatic group represented by the following formulae (1-1) and (1-2). A represents a structure represented by the following formula (II-1). Y and Z represent divalent hydrocarbon groups. B and B? each independently represents a group represented by —O—(Y—O)m-H or —O—(Y—O)m-CO-Z-CO—OR?, wherein R? is a hydrogen atom, an aralkyl group, an aryl group, or an aralkyl group. m represents an integer from 1 to 5; and p represents an integer from 5 to 5000. Ar represents a monovalent aromatic group. X represents a divalent condensed aromatic group. T represents a divalent linear hydrocarbon group having 1 to 6 carbon atoms or a divalent branched hydrocarbon group having 2 to 10 carbon atoms. k and n each represents an integer of 0 or 1.Type: GrantFiled: February 20, 2004Date of Patent: June 13, 2006Assignee: Fuji Xerox Co., Ltd.Inventors: Mieko Seki, Hirohito Yoneyama, Daisuke Okuda, Hidekazu Hirose, Tadayoshi Ozaki, Takeshi Agata, Toru Ishii, Hiroaki Moriyama, Kiyokazu Mashimo, Katsuhiro Sato
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Publication number: 20060046094Abstract: The invention provides an organic electroluminescence device including an organic compound layer, wherein the organic compound layer is constituted of two or more layers at least including a light emitting layer and a buffer layer, at least one layer of the organic compound layers contains a charge-transporting polyester, which includes a repeating unit containing, as a partial structure, at least one selected from structures represented by following general formulas (I-1) and (I-2); and the buffer layer is provided adjacent to the anode and contains at least a charge injecting material: [chem 1] wherein, in the general formulas (I-1) and (I-2), Ar represents a substituted or non-substituted monovalent aromatic group; X represents a substituted or non-substituted divalent aromatic group; k, m and l each represents 0 or 1; and T represents a linear divalent hydrocarbon with 1 to 6 carbon atoms or a branched hydrocarbon with 2 to 10 carbon atoms.Type: ApplicationFiled: February 10, 2005Publication date: March 2, 2006Inventors: Yohei Nishino, Katsuhiro Sato, Mieko Seki, Kiyokazu Mashimo, Takeshi Agata, Toru Ishii, Hiroaki Moriyama, Hidekazu Hirose, Tadayoshi Ozaki, Daisuke Okuda, Hirohito Yoneyama