Patents by Inventor Satoru Toguchi
Satoru Toguchi 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: 20050026530Abstract: A light emitting device and a manufacturing method thereof and a display used the light emitting device, in which fine patterning for the light emitting device is realized by a simple process and the light leakage is prevented and the efficiency at extracting light is increased, are provided. The light emitting device provides an organic electroluminescent (EL) device in which electrodes and a luminescent layer are formed, a diffraction grating or a zone plate, and a filter. Light emitted from the luminescent layer transmits through the diffraction grating or the zone plate, which is formed with a designated grating pitch, or is reflected at the diffraction grating or the zone plate. With this, the transmitting or reflecting light is controlled to be in a designated angle region. And when the light is transmitted through the filter, light having different color tone and chromaticity from those of the light emitted from the luminescent layer is extracted.Type: ApplicationFiled: August 30, 2004Publication date: February 3, 2005Inventors: Satoru Toguchi, Hitoshi Ishikawa, Atsushi Oda
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Publication number: 20050008768Abstract: Disclosed is a method of manufacturing a substrate for an organic EL device, the method comprising the step of: filling grooves of the optical element with sol-gel coating solution or organic metal cracking solution when a diffraction grating 12 is formed on the glass substrate 11, wherein an encapsulation member 5 is mounted to the glass substrate 11 in order to fill the groove 12a with the coating solution, and the coating solution is injected into a gap between the encapsulation member 5 and the diffraction grating 12, so that the organic EL device can be stably manufactured with low variation between optical properties according to positions of the substrate and with improved luminous efficiency.Type: ApplicationFiled: May 7, 2004Publication date: January 13, 2005Inventors: Yasuharu Onishi, Satoru Toguchi, Junichi Yamanari, Hitoshi Ishikawa, Tomohisa Gotoh, Atsushi Kamijo
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Patent number: 6821644Abstract: A specific bis(diarylamino)arylene compound expressed in the following general formula [1.1] is used as a constituent material of an organic EL device. By this, luminescent brilliance and EL property are improved, and further, reduction in luminescent property is suppressed, and durability is improved. (wherein, Ar1 represents a substituted or unsubstituted arylene group having 5 to 42 carbon atoms: at least one of Ar2 to Ar3 independently represents a group expressed in the following general formula [1.2]; and the remaining group(s) of Ar2 to Ar5 independently represents an aryl group having 6 to 20 carbon atoms, and at least one of Ar2 to Ar5 has at least one hydrocarbon group which may include oxygen atom(s).) (wherein, each of R1 to R11 independently represents a hydrogen atom or a substituent.Type: GrantFiled: December 5, 2000Date of Patent: November 23, 2004Assignee: Samsung SDI Co., Ltd.Inventors: Hitoshi Ishikawa, Satoru Toguchi, Hiroshi Tada, Yukiko Morioka, Atsushi Oda
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Patent number: 6809333Abstract: An organic electroluminescent device including at least one organic thin film layer interposed between an anode and a cathode, the at least one organic thin film layer including a luminescent zone having at least one luminescent layer, wherein the organic thin film layer contains a compound represented by one of the following general formulae [I], [II], and [III]: A1-X1-(A2)a [I] XN-(Y)n [II] Y1-Y2 [III] Since the light emission from layers other than the luminescent zone (luminescent layer) is significantly decreased in this organic EL device, the color purity of the light emitted by the device is improved, thus providing a highly efficient, high luminance organic electroluminescent device.Type: GrantFiled: June 25, 2003Date of Patent: October 26, 2004Assignee: Samsung SDI Co., Ltd.Inventors: Hitoshi Ishikawa, Satoru Toguchi, Hiroshi Tada, Atsushi Oda
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Patent number: 6784452Abstract: An organic TFT including an organic film, first and second electrodes each disposed in contact with opposite surfaces of the organic film each other; and a third electrode disposed at a specified distance from each of the first and second electrodes, the third electrode being applied with a voltage to control current flowing from one of the first and the second electrodes to the other through the organic film; and the organic film including a compound represented by general formula [1]. In this TFT, the carrier moves from one of the first and the second electrodes to the other in the direction of the film thickness of the organic film. The device structure realizes the enough short channel length. The organic film provides the higher mobility, thereby the organic TFT with the sufficiently higher speed response is realized.Type: GrantFiled: October 4, 2002Date of Patent: August 31, 2004Assignee: NEC CorporationInventors: Satoru Toguchi, Atsushi Oda, Hitoshi Ishikawa
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Patent number: 6771018Abstract: In a light-emitting device comprising an organic electroluminescent device including one or more organic thin layers (at least including a light-emitting layer) which are sandwiched between a transparent first electrode formed on a light-transmitting substrate and a second electrode, the light-transmitting substrate is formed so as to include parts for reflecting light emitted by the organic electroluminescent device (corresponding to a pixel) and thereby preventing the light from entering adjacent pixel areas. The light-transmitting substrate is formed of material having a refractive index of 1.65 or more or a refractive index higher than that of the light-emitting layer. A surface of the light-transmitting substrate opposite to the first electrode is provided with a light-diffusing function for avoiding total reflection.Type: GrantFiled: July 24, 2002Date of Patent: August 3, 2004Assignee: Samsung SDI Co., Ltd.Inventors: Satoru Toguchi, Atsushi Oda, Hitoshi Ishikawa
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Publication number: 20040142209Abstract: There is provided an electroluminescent device including an anode, a cathode, and at least one organic layer sandwiched between the anode and the cathode, the organic layer including at least a red light emitting layer, the organic layer containing a compound represented with the chemical formula C1, alone or in combination: 1Type: ApplicationFiled: January 14, 2004Publication date: July 22, 2004Applicant: NEC CorporationInventors: Satoru Toguchi, Atsushi Oda, Hitoshi Ishikawa
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Patent number: 6759144Abstract: An organic electroluminescent device comprising an anode, a cathode and one or more than one organic thin-film layers including a light-emitting layer between said anode and said cathode, wherein at least one of said organic thin-film layers contains, either singly or as a mixture, a perylene compound represented by the following formula (1): wherein at least one of R1 to R12 is a substituted amino group.Type: GrantFiled: December 14, 1999Date of Patent: July 6, 2004Assignee: Samsung SDI Co., Ltd.Inventors: Satoru Toguchi, Hitoshi Ishikawa, Yukiko Morioka, Atsushi Oda
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Patent number: 6753097Abstract: An electroluminescence device includes an anode, a cathode and at least one organic layer sandwiched between the anode and the cathode, the organic layer including at least a light emitting layer which includes at least one of compound C1, compound C2 and compound C4, alone or in combination:Type: GrantFiled: September 24, 2001Date of Patent: June 22, 2004Assignee: Samsung SDI Co., Ltd.Inventors: Satoru Toguchi, Atsushi Oda, Hitoshi Ishikawa
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Patent number: 6750895Abstract: An optical printer head with a plurality of light-emitting devices arranged in two dimensions is capable of providing a desired amount of exposure using light-emitting devices having even small luminance, ease of corrections to a sensitivity of a photosensitive body and to a positional displacement of an object to be printed, performing printing on multiple gray scales and implementing high density and miniaturization. The optical printer head is so configured that a picture element array including picture elements containing light-emitting devices arranged in line and string directions in two dimensions, a horizontal scanning circuit to feed data signals to each picture element string in the picture element array and a vertical scanning circuit to sequentially select and activate each picture element in the picture element array are formed on a same insulating substrate to support production of the above effects.Type: GrantFiled: September 29, 2000Date of Patent: June 15, 2004Assignee: NEC CorporationInventors: Tomohiko Otose, Hideki Asada, Tsutomu Uezono, Atsushi Oda, Satoru Toguchi
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Patent number: 6746784Abstract: An organic electroluminescent device comprising one or more organic thin film layers, at least one of the organic thin film layers containing a compound having a cyclohexylidenemethine group. This device has improved light-emitting properties such as luminance and luminous efficiencies, and no limitations on film deposition method in fabrication processes.Type: GrantFiled: November 5, 2001Date of Patent: June 8, 2004Assignee: Samsung Electronics Co., Ltd.Inventors: Satoru Toguchi, Hitoshi Ishikawa, Hiroshi Tada, Atsushi Oda
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Patent number: 6747287Abstract: An organic thin film transistor includes: an organic thin film which includes a compound represented by the following general formula [A]: X—[—N Ar1Ar2]n [A] where each of Ar1 and Ar2 is selected independently from unsubstituted or substituted aromatic hydrocarbon groups having 6 to 20 carbon atoms and from unsubstituted or substituted aromatic heterocyclic groups having 6 to 20 carbon atoms; and X is selected from unsubstituted or substituted condensed aromatic hydrocarbon groups having 6 to 34 carbon atoms, and the condensed aromatic hydrocarbon groups are monovalent, divalent, trivalent or tetravalent groups; and n is the natural number in the range of 1-4.Type: GrantFiled: October 17, 2002Date of Patent: June 8, 2004Assignee: NEC CorporationInventors: Satoru Toguchi, Atsushi Oda, Hitoshi Ishikawa
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Publication number: 20040091819Abstract: In an organic electroluminescent device, a plurality of striped lower electrodes are formed on an insulating substrate, and a plurality of fillers made of amorphous carbon are filled between the lower electrodes. Organic thin film layers including an emitting layer is formed on the fillers and the lower electrodes. A plurality of striped upper electrodes are formed on the organic thin film layer along a second direction different from the first direction.Type: ApplicationFiled: October 31, 2003Publication date: May 13, 2004Applicant: NEC CORPORATIONInventors: Hiroshi Tada, Atsushi Oda, Hitoshi Ishikawa, Satoru Toguchi
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Patent number: 6734624Abstract: An organic EL device including a substrate, at least one organic thin-film layer overlying the main surface, and a pair of electrodes sandwiching therebetween the organic thin-film layer, at least one of the electrodes being a metallic electrode, the organic thin film layer defining a recombination electroluminescence region which is apart from the metallic electrode by at least 100 nm and has a periodic structure. In the organic EL device of the present invention, the emitted light is efficiently taken out by increasing the distance between the EL light-emitting region and the metal electrode for separating the light-emitting location from the metal electrode.Type: GrantFiled: December 8, 2000Date of Patent: May 11, 2004Assignee: NEC CorporationInventors: Hiroshi Tada, Atsushi Oda, Hitoshi Ishikawa, Satoru Toguchi, Yukiko Morioka
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Publication number: 20040051097Abstract: An organic electroluminescent device including at least one organic thin film layer interposed between an anode and a cathode, the at least one organic thin film layer including a luminescent zone having at least one luminescent layer, wherein the organic thin film layer contains a compound represented by one of the following general formulae [I], [II], and [III]:Type: ApplicationFiled: June 25, 2003Publication date: March 18, 2004Inventors: Hitoshi Ishikawa, Satoru Toguchi, Hiroshi Tada, Atsushi Oda
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Patent number: 6699594Abstract: An organic electroluminescent (EL) device includes one or more organic thin film layers disposed between an anode and a cathode, at least one of said layers containing, in a form of a mixture or a single substance, a dibenzoperylene compound expressed in Formula 4. The organic EL device exhibits higher luminance than that obtained by a conventional organic EL device.Type: GrantFiled: September 29, 2000Date of Patent: March 2, 2004Assignee: NEC CorporationInventors: Hitoshi Ishikawa, Satoru Toguchi, Yukiko Morioka, Atsushi Oda
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Publication number: 20040018387Abstract: An organic electroluminescence material of the present invention includes, in order to provide a durable organic EL device emitting light of high brightness, a compound shown by the following general formula (A-I) or (B-I) 1Type: ApplicationFiled: May 30, 2003Publication date: January 29, 2004Inventors: Hiroshi Tada, Atsushi Oda, Hitoshi Ishikawa, Satoru Toguchi, Yukiko Morioka
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Patent number: 6682831Abstract: A high- luminance organic EL device employs a particular tetrabenzo[de,hi,op,st]pentacene compound represented by the general formula (1): wherein R1 to R18 independently represent hydrogen atom, halogen atom, hydroxyl group, amino group, nitro group, cyano group, carboxyl group, alkyl group, alkenyl group, cycloalkyl group, alkoxy group, aromatic hydrocarbon group, aromatic heterocyclic group, aralkyl group, aryloxy group, alkoxycarbonyl group or a derivative thereof; or two of R1 to R18 may form a ring; provided that at least one of R1 to R18 is diarylamino group represented by —NAr1Ar2 where Ar1 and Ar2 independently represent substituted or unsubstituted aryl group having 6 to 20 carbon atoms.Type: GrantFiled: May 24, 2001Date of Patent: January 27, 2004Assignee: NEC CorporationInventors: Satoru Toguchi, Hitoshi Ishikawa, Hiroshi Tada, Atsushi Oda
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Patent number: 6670051Abstract: An organic EL device with high brightness and long lifetime, which is capable of driving at low voltage, is provided. As the material for constituting the organic EL device, a specific styryl amino group-containing diphenyl aminoarylene represented by the following general formula [1] (wherein Ar1 is a substituted or unsubstituted arylene group having 5-42 carbons, Ar2 to Ar5 each independently represents substituted or unsubstituted C6 to C20 aryl groups, at least one of which is a styrylphenyl group represented by the following general formula [2]) is used in a light-emitting zone adjacent to an anode.Type: GrantFiled: October 22, 1999Date of Patent: December 30, 2003Assignee: NEC CorporationInventors: Atsushi Oda, Hitoshi Ishikawa, Satoru Toguchi, Yukiko Morioka
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Patent number: 6660408Abstract: An organic EL device which comprises an anode, a cathode and one or more than one organic thin-film layer including a light-emitting layer contains a specific diaryl compound, triaryl compound or tetraaryl compound represented by following formula (1), (2) or (3): wherein Ar1, Ar1′ and Ar2 is, for example, a monovalent group represented by formula (4), and Ar3 and Ar4 is, for example, a divalent group represented by formula (7): wherein A1 and A6 represent an atomic group forming a substituted or unsubstituted condensed hydrocarbon ring or heterocyclic ring, and R1-R3 and R7-R8 represent, for example, a hydrogen atom, halogen atom, or substituted or unsubstituted aromatic hydrocarbon group.Type: GrantFiled: May 20, 1999Date of Patent: December 9, 2003Assignee: NEC CorporationInventors: Satoru Toguchi, Hitoshi Ishikawa, Atsushi Oda