Patents by Inventor Katsuhiro Sato
Katsuhiro Sato 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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Publication number: 20050014020Abstract: The present invention provides an organic electroluminescent device including a pair of electrodes including an anode and a cathode, at least one of which is transparent or translucent; and one or more organic compound layers placed between the pair of electrodes, wherein at least one of the organic compound layers contains a charge transport material that satisfies the following relations: (ta?tT)/ta<0.5 ??Expression (1) D/?<20 ??Expression (2) wherein, in an electric field of 10 V/?m, tT is a transit time of a transient photocurrent waveform; IT is a current value at time tT; Ia is half of the current value IT; ta is a time at the current value Ia on the transient photocurrent waveform; D and ? are respectively a diffusion coefficient and a true mobility obtained from the transient photocurrent waveform; and D/? is the ratio of D to ?.Type: ApplicationFiled: February 20, 2004Publication date: January 20, 2005Inventors: Hirohito Yoneyama, Mieko Seki, Masahiro Iwasaki, Katsumi Nukada, Daisuke Okuda, Hidekazu Hirose, Tadayoshi Ozaki, Hiroaki Moriyama, Toru Ishii, Takeshi Agata, Kiyokazu Mashimo, Katsuhiro Sato
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Publication number: 20040081854Abstract: 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: ApplicationFiled: March 18, 2003Publication date: April 29, 2004Applicant: 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: 20040062948Abstract: An organic electro-luminescent device comprising one or more organic compound layers sandwiched between a pair of electrodes, at least one of which electrodes is transparent or semi-transparent, wherein at least one of the one or more organic compound layers comprises at least one polyurethane compound having a repeating unit represented by the following general formula (I). At least one of A and B in general formula (I) represents a divalent group represented by one of the following general formulae (II) to (VI).Type: ApplicationFiled: March 17, 2003Publication date: April 1, 2004Applicant: Fuji Xerox Co., Ltd.Inventors: Tadayoshi Ozaki, Mieko Seki, Hirohito Yoneyama, Daisuke Okuda, Hidekazu Hirose, Takeshi Agata, Toru Ishii, Kiyokazu Mashimo, Katsuhiro Sato
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Patent number: 6711457Abstract: Working machinery for working an elongated work comprises a work stocker configured to store a plurality of works, a work carrying-in machine configured to carry in the works from the work stocker to a working area, a positioning device configured to position the work in the working area, a work clamper provided in the working area and configured to clamp the work in a vertical direction, a plurality of working machines arranged on both sides of the working clamper to work the elongated work from both sides of the work, a plurality of driving devices configured to move the working machines respectively in a longitudinal direction, a controller configured to control the working machines and the driving device, and a work carrying-out machine configured to carry out the work which is completed in working from the working area.Type: GrantFiled: April 26, 2001Date of Patent: March 23, 2004Assignee: Kabushiki Kaisha ToshibaInventors: Satoru Yanaka, Katsuhiro Sato, Yasuo Nagase, Hiroshi Noguchi, Kazuto Sasaki, Hiromichi Nakabayashi, Syouji Inagawa, Masahiro Kasiwa, Hitoshi Furugori, Kouji Oonishi, Nobuhiro Abe
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Publication number: 20040018384Abstract: 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: ApplicationFiled: March 4, 2003Publication date: January 29, 2004Applicant: 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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Patent number: 6670052Abstract: An organic light emitting diode having high luminous intensity, and providing stabilized performance even during repetitive use and easy to manufacture, by using a charge transporting polymer having the following general formulae (I-1) and (I-2). where Ar represents a substituted or non-substituted monovalent polynulear aromatic ring having number of aromatic rings of 3 to 10, X represents a substituted or non-substituted bivalent aromatic group, T represents a bivalent linear hydrocarbon group of 1 to 6 carbon atoms, m represents an integer of 1 to 3 and k represents 0 or 1.Type: GrantFiled: August 27, 2001Date of Patent: December 30, 2003Assignee: Fuji Xerox Co., Ltd.Inventors: Hidekazu Hirose, Daisuke Okuda, Hirohito Yoneyama, Mieko Seki, Kiyokazu Mashimo, Takeshi Agata, Katsuhiro Sato
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Patent number: 6652995Abstract: An organic electroluminescence device contains a hole transporting polyesters represented by the following formulae (I-1) or (I-2): where Ar represents a substituted or unsubstituted monovalent polynulear aromatic ring having a number of aromatic rings of 3 to 10, or a substituted or unsubstituted monovalent condensed aromatic ring having a number of aromatic rings of from 2 to 10, X represents a substituted or unsubstituted bivalent aromatic group, T represents a bivalent linear hydrocarbon group of 1 to 6 carbon atoms or bivalent branched hydrocarbon group of 2 to 20 carbon atoms and k represents 0 or 1.Type: GrantFiled: October 11, 2001Date of Patent: November 25, 2003Assignee: Fuji Xerox Co., Ltd.Inventors: Mieko Seki, Daisuke Okuda, Hirohito Yoneyama, Hidekazu Hirose, Kiyokazu Mashimo, Takeshi Agata, Katsuhiro Sato
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Patent number: 6653701Abstract: A semiconductor device having laminated successively a porous semiconductor layer, an inorganic semiconductor layer, and optionally an organic substance layer formed therebetween is disclosed. The semiconductor device is produced by immersing a porous semiconductor layer or a semiconductor layer having an organic substance layer on the surface thereof in a solution containing the elements constituting an inorganic semiconductor or compounds of the elements and forming the inorganic semiconductor layer on the porous semiconductor layer or the organic substance layer in the solution.Type: GrantFiled: March 7, 2000Date of Patent: November 25, 2003Assignee: Fuji Xerox Co., Ltd.Inventors: Yoshihisa Yamazaki, Yoshiyuki Ono, Hokuto Takada, Katsuhiro Sato, Akira Imai, Hidekazu Hirose
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Publication number: 20030215312Abstract: Working machinery for working an elongated work comprises a work stocker configured to store a plurality of works, a work carrying-in machine configured to carry in the works from the work stocker to a working area, a positioning device configured to position the work in the working area, a work clamper provided in the working area and configured to clamp the work in a vertical direction, a plurality of working machines arranged on both sides of the working clamper to work the elongated work from both sides of the work, a plurality of driving devices configured to move the working machines respectively in a longitudinal direction, a controller configured to control the working machines and the driving device, and a work carrying-out machine configured to carry out the work which is completed in working from the working area.Type: ApplicationFiled: April 26, 2001Publication date: November 20, 2003Inventors: Satoru Yanaka, Katsuhiro Sato, Yasuo Nagase, Hiroshi Noguchi, Kazuto Sasaki, Hiromichi Nakabayashi, Syouji Inagawa, Masahiro Kasiwa, Hitoshi Furugori, Kouji Oonishi, Nobuhiro Abe
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Publication number: 20030207187Abstract: A charge-transporting polymer is represented by the following general formula (I-1) or (I-2): 1Type: ApplicationFiled: September 10, 2002Publication date: November 6, 2003Applicant: FUJI XEROX CO., LTD.Inventors: Mieko Seki, Hirohito Yoneyama, Daisuke Okuda, Hidekazu Hirose, Tadayoshi Ozaki, Takeshi Agata, Toru Ishii, Kiyokazu Mashimo, Katsuhiro Sato
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Publication number: 20020182440Abstract: An organic electroluminescence device contains a hole transporting polyesters represented by the following formulae (I-1) or (1-2): 1Type: ApplicationFiled: October 11, 2001Publication date: December 5, 2002Applicant: Fuji Xerox Co., LtdInventors: Mieko Seki, Daisuke Okuda, Hirohito Yoneyama, Hidekazu Hirose, Kiyokazu Mashimo, Takeshi Agata, Katsuhiro Sato
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Publication number: 20020050597Abstract: An organic light emitting diode having high luminous intensity, and providing stabilized performance even during repetitive use and easy to manufacture, by using a charge transporting polymer having the following general formulae (I-1) and (I-2).Type: ApplicationFiled: August 27, 2001Publication date: May 2, 2002Applicant: FUJI XEROX CO., LTD.Inventors: Hidekazu Hirose, Daisuke Okuda, Hirohito Yoneyama, Mieko Seki, Kiyokazu Mashimo, Takeshi Agata, Katsuhiro Sato
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Patent number: 6284365Abstract: A method for producing a composite material, wherein compound A having a group selected from an aliphatic hydrocarbon group, aromatic hydrocarbon group and heterocycle-containing group which comprises a functional group which can bond to a compound B allowed to bond to a substrate, then compound B having a functional group which can bond to said functional group in compound A is allowed to bond to compound A is disclosed. Embodiments in which compound A is represented by formula (1); R1M1Y13, formula (2); R1R2M1Y12, formula (3); R1R2R3M1Y1 and formula (4); R1—SH: embodiments in which compound A is a silane compound: the functional group of compound A is a halogen group or an epoxy group: and embodiments in which compound B is selected from aliphatic hydrocarbon compounds, aromatic hydrocarbon compounds and heterocycle-containing compounds having an amino group, carboxyl group or hydroxyl group, are preferred.Type: GrantFiled: August 25, 1997Date of Patent: September 4, 2001Assignee: Fuji Xerox Co., Ltd.Inventors: Hidekazu Hirose, Yoshiyuki Ono, Katsuhiro Sato, Akira Imai
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Patent number: 6252156Abstract: Disclosed is an aggregate of metal oxide fine particles having fine pores whose size frequency distribution has a plurality of peaks. Disclosed also is a method preferably used for producing the aggregate of metal oxide fine particles. The method comprises a step of reacting a precursor of a metal oxide with a compound interacting with the precursor in a solvent to yield metal oxide fine particles. Also disclosed are a photosensitive semiconductor comprising a substrate, and a metal oxide porous body having fine pores whose size frequency distribution has a plurality of peaks and a method preferably used for manufacturing the photosensitive semiconductor electrode. This photosensitive semiconductor electrode has a high energy conversion efficiency and is preferably used in a photoelectric converter.Type: GrantFiled: June 17, 1998Date of Patent: June 26, 2001Assignee: Fuji Xerox Co., Ltd.Inventors: Yoshiyuki Ono, Hidekazu Hirose, Katsuhiro Sato, Akira Imai
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Patent number: 6153824Abstract: Disclosed are a photo-semiconductive electrode that has a high light-to-electricity conversion efficiency and excellent stability and can be prepared economically and easily, and a photo-electric cell using the photo-semiconductive electrode. The photo-electric cell comprises a photo-semiconductive electrode having an electroconductive base and a light-to-electricity conversion layer formed thereon, and a counter electrode, such that the photo-semiconductive electrode and the counter electrode contact an electrolyte, wherein the light-to-electricity conversion layer holds an organic pigment. In the photo-electric cell, the photo-semiconductive electrode and the counter electrode are used integrally and disposed so that these electrodes contact the electrolyte. The organic pigment suited for use in the layer is selected from the group consisting of: phthalocyanine pigment such as titanyl phthalocyanine, chlorogallium phthalocyanine and hydroxygallium phthalocyanine; and naphthalocyanine pigments.Type: GrantFiled: January 11, 1999Date of Patent: November 28, 2000Assignee: Fuji Xerox Co., Ltd.Inventors: Hokuto Takada, Hidekazu Hirose, Yoshiyuki Ono, Akira Imai, Katsuhiro Sato
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Patent number: 6140404Abstract: The present invention provides a non-linear optical material having an excellent non-linear optical effect which is insusceptible to modification of a cuprous halide incorporated therein. The present invention also provides a process which enables the preparation of such a non-linear optical material at a low temperature by means of a simple apparatus. The non-linear optical material of the present invention exhibits a nonlinear response to incident light and comprises a particulate cuprous halide dispersed in a matrix, said particulate cuprous halide having been separated out with the reaction of a functional group contained in a matrix-forming substance having a functional group, wherein said matrix contains a compound for inhibiting the modification of said cuprous halide.Type: GrantFiled: December 10, 1996Date of Patent: October 31, 2000Assignee: Fuji Xerox Co., Ltd.Inventors: Yoshiyuki Ono, Katsuhiro Sato
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Patent number: 6045856Abstract: A resistive element is produced by forming a substrate glazed with glass, printing or coating a resistive element-forming paste onto the substrate, calcining the paste in a first heating step to form an element comprising a film on the substrate and subjecting the resulting element to a heat treatment in a second heating step to diffuse an amount of glass into the film to increase resistivity of the element.Type: GrantFiled: April 29, 1994Date of Patent: April 4, 2000Assignee: Fuji Xerox Co., Ltd.Inventors: Kaoru Torikoshi, Katsuhiro Sato, Hiroyuki Tanaka, Fumiaki Tambo, Yutaka Akasaki
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Patent number: 6034351Abstract: A cleaning arrangement for removing sputter attached to a welding torch nozzle includes a cylindrical container with screen at the lower end thereof, shot material held by the screen, an air injection nozzle disposed above the screen, a suction tube under the nozzle and a torch nozzle sensor to control the sputter removal process.Type: GrantFiled: June 24, 1998Date of Patent: March 7, 2000Inventors: Katsuhiro Sato, Hiroyuki Izumi, Motoaki Maruyama, Toshiya Hayashida, Yusuke Harayama, Kenji Yoshida, Kenji Hiroi
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Patent number: 6028265Abstract: The photo-semiconducting electrode of the present invention comprises a semiconducting substrate, a chemically adsorbed film formed thereon composed of at least one compound selected from the compounds represented by the formulas: formulas (I) R.sup.1 M.sup.1 Y.sub.1.sub.3, (II) R.sup.1 R.sup.2 M.sup.1 Y.sup.1.sub.2, (III) R.sup.1 R.sup.2 R.sup.3 M.sup.1 Y.sup.1 and (IV) R.sup.1 --SH, respectively, and a dye which is fixed to the surface of the chemically adsorbed film and has a functional group capable of reacting with a halogen atom. Because of this, the photo-semiconductor electrode of the present invention is capable of efficiently absorbing solar light and performing energy conversion and superior in photoelectric conversion efficiency, stability and durability. In addition, it can be easily produced.Type: GrantFiled: December 10, 1997Date of Patent: February 22, 2000Assignee: Fuji Xerox Co., Ltd.Inventors: Yoshiyuki Ono, Akira Imai, Hidekazu Hirose, Katsuhiro Sato
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Patent number: 5963360Abstract: The present invention provides a nonlinear optical element having a sufficient thickness that can be used as a thin film insusceptible to crack and a process for the preparation thereof. A novel nonlinear optical element which gives a nonlinear response to incident light is provided, comprising finely divided grains of a semiconductor or metal, which grains have been separated out with the reaction of a functional group in a matrix-forming substance containing said functional group, dispersed in a matrix. A process for the preparation of a nonlinear optical element which gives a nonlinear response to incident light is also provided, which comprises mixing a solution of a matrix-forming substance containing a functional group with a metal, a semiconductor or a precursor thereof to form a uniform solution, and then allowing said functional group to undergo reaction to form a matrix while allowing finely divided grains of said metal or semiconductor to be separated out in said matrix.Type: GrantFiled: January 22, 1998Date of Patent: October 5, 1999Assignee: Fuji Xerox Co., Ltd.Inventors: Katsuhiro Sato, Yoshiyuki Ono, Shigetoshi Nakamura