Patents by Inventor Yoshio Taniguchi
Yoshio Taniguchi 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: 20070285004Abstract: The present invention provides an arylamine compound having a molecular weight of from 1500 to 6000 represented by the general formula (1): According to the present invention, there can be provided an arylamine compound having excellent hole injection and transporting characteristics and being capable of forming a stable thin film. By using the compound, emission efficiency and durability of conventional organic EL devices can remarkably be improved.Type: ApplicationFiled: March 25, 2005Publication date: December 13, 2007Applicants: Hodogaya Chemical Co., Ltd, Shinshu UniversityInventors: Tetsuzo Miki, Naohiro Tarumoto, Yoshio Taniguchi, Musubu Ichikawa
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Publication number: 20060194453Abstract: A transparent amorphous silicon dioxide film containing many fine voids, characterized in that the refractive index (for light at ?=500 nm) is in the range of 1.01 to 1.40 and that 80 vol. % or more of the fine voids have a diameter of 5 nm or less, has a low refractive index and excellent physical strength such as high scratch resistance, so that it is advantageously employable as an optical film of an optical device for various uses.Type: ApplicationFiled: March 25, 2004Publication date: August 31, 2006Inventors: Yasushi Murakami, Masayuki Harano, Yoshio Takasu, Yoshio Taniguchi
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Publication number: 20060145603Abstract: An organic electroluminescence element has a layered structure on a surface of a transparent substrate. The layered structure comprises an organic material layer including a light-emitting organic material layer, an opaque electrode layer, an insulating layer, a metal layer and a resin film in order. The organic electroluminescence element is improved in durability because moisture is prevented from permeating into a light-emitting element.Type: ApplicationFiled: June 25, 2004Publication date: July 6, 2006Applicants: Yoshio Taniguchi, Tokai Rubber Industries, LtdInventors: Yoshio Taniguchi, Masato Sugiyama, Shingo Hibino, Tetsuya Takeuchi, Ryo Minoshima
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Patent number: 6916981Abstract: The objects of the present invention are to provide semiconductor layers for obtaining solar cells having a relatively high energy conversion efficiency, solar cells using the same, and their production methods and uses; all of which are solved by providing semiconductor layers that are used in solar cells and constructed by semiconductor particle groups having a plurality of peaks in particle size distribution, solar cells using the same, and their production methods and uses.Type: GrantFiled: March 22, 2001Date of Patent: July 12, 2005Assignee: Kabushiki Kaisha Hayashibara Seibutsu Kagaku KenkyujoInventors: Fumio Matsui, Hirofumi Mitekura, Kentaro Yano, Toshiki Koyama, Yoshio Taniguchi
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Publication number: 20050062412Abstract: A light emitting apparatus having a large quantity of light per space necessary for installation, which allows easy adjustment of the directivity of light emission and easy arrangement of the color of emitted light and has a high light emitting efficiency, is achieved by a light emitting apparatus, which is comprised of a moisture impermeable substrate having a warped configuration, an electro-luminescent light emitting laminated body formed on the inner surface of the warped substrate having such constitution that, from the warped substrate side, at least a first electrode layer, a light emitting function layer and a second electrode layer being laminated in this order, a moisture impermeable opposing substrate joined in an impermeable manner at the edge portion or in a region adjacent to the edge portion of the warped substrate and electrical connection terminals connected to each of the electrode layers of the electro-luminescent light emitting laminated body for externally supplying electrical energy to eType: ApplicationFiled: October 22, 2002Publication date: March 24, 2005Inventors: Yoshio Taniguchi, Masahiro Oki, Yuji Yokomizo, Shigeru Okada
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Publication number: 20050003231Abstract: The present invention relates to an EL device which is driven with a lower voltage or power amount, which is superior in interface stability between layers in the device and which has a higher luminance as compared with the use of a conventional electrode, and is characterized in that in the EL device comprising a light emitting layer disposed as an essential layer between two electrodes facing each other, at least one of the electrodes includes a crystalline conductive film whose diffraction intensity ratio of (400)/(222) is 1.0 or more in X-ray diffraction by a ?/2? method.Type: ApplicationFiled: November 21, 2002Publication date: January 6, 2005Inventors: Hiroshi Suzuki, Hideaki Gondaira, Yoshio Taniguchi
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Publication number: 20040074531Abstract: The present invention aims to provide a solar cell which has an improved processibility suitable for industrial-scale and which is easily prepared at a lower cost.Type: ApplicationFiled: June 24, 2003Publication date: April 22, 2004Inventors: Fumio Matsui, Toshiki Koyama, Yoshio Taniguchi, Hirofumi Mitekura, Kentaro Yano, Hideo Ohtaka
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Patent number: 6631147Abstract: An organic semiconductor laser device is composed of a positive electrode layer, an electron hole-transporting layer, a light-emitting layer containing an organic dye and having an open end, an electron-transporting layer, and a negative electrode layer in order. The electron hole-transporting layer and the electron-transporting layer satisfy the conditions of 1<n1/n2 and 1<n1/n3 (n1 is a refractive index of the light-emitting layer determined at a wavelength of the light emitted in the light-emitting layer, n2 is that of the electron hole-transporting layer, and n3 is that of the electron-transporting layer) and further satisfy the conditions; 0.Type: GrantFiled: September 14, 1999Date of Patent: October 7, 2003Assignee: Optc Co., Ltd.Inventors: Yoshio Taniguchi, Chihaya Adachi, Toshiki Koyama, Michifumi Nagawa
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Publication number: 20030176520Abstract: 4-Cyanocoumarin derivatives which have a distinct sensitivity to visible light, distinct luminescent ability, and satisfactory applicability for photochemical polymerization, dye lasers, and organic electroluminescent elements. Since most of the derivatives have a fluorescent maximum wavelength of 600 to 650 nm, particularly, 610 to 630 nm, they are extremely useful as luminescent agents for organic EL elements which emit visible light in a red-color region, and can be quite useful as luminescent agents in organic EL elements and laser-active substances in dye lasers, as well as luminous bodies as lighting sources for lighting devices, and information displays for visually displaying information.Type: ApplicationFiled: January 21, 2003Publication date: September 18, 2003Applicant: KABUSHIKI KAISHA HAYASHIBARA SEIBUTSU KAGAKU KENKYUJOInventors: Yoshio Taniguchi, Toshiki Koyama, Chihaya Adachi, Tomoyasu Saitou, Makoto Satsuki, Akira Shinpo, Sadaharu Suga, Shizuo Tokito, Hisayoshi Fujikawa, Koji Noda, Atsushi Miura, Yasunori Taga
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Publication number: 20030155583Abstract: The objects of the present invention are to provide semiconductor layers for obtaining solar cells having a relatively high energy conversion efficiency, solar cells using the same, and their production methods and uses; all of which are solved by providing semiconductor layers that are used in solar cells and constructed by semiconductor particle groups having a plurality of peaks in particle size distribution, solar cells using the same, and their production methods and uses.Type: ApplicationFiled: October 15, 2002Publication date: August 21, 2003Inventors: Fumio Matsui, Hirofumi Mitekura, Kentaro Yano, Toshiki Koyama, Yoshio Taniguchi
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Publication number: 20030103537Abstract: An organic semiconductor laser device is composed of a positive electrode layer, an electron hole-transporting layer, a light-emitting layer containing an organic dye and having an open end, an electron-transporting layer, and a negative electrode layer in order. The electron hole-transporting layer and the electron-transporting layer satisfy the conditions of 1<n1/n2 and 1<n1/n3 (n1 is a refractive index of the light-emitting layer determined at a wavelength of the light emitted in the light-emitting layer, n2 is that of the electron hole-transporting layer, and n3 is that of the electron-transporting layer) and further satisfy the conditions; 1 0.16 < n 2 × d 2 × ( n 1 n 2 ) 2 - 1 λ 0.Type: ApplicationFiled: September 14, 1999Publication date: June 5, 2003Inventors: YOSHIO TANIGUCHI, CHIHAYA ADACHI, TOSHIKI KOYAMA, MICHIFUMI NAGAWA
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Patent number: 6573380Abstract: 4-Cyanocoumarin derivatives which have a distinct sensitivity to visible light, distinct luminescent ability, and satisfactory applicability for photochemical polymerization, dye lasers, and organic electroluminescent elements. Since most of the derivatives have a fluorescent maximum wavelength of 600 to 650 nm, particularly, 610 to 630 nm, they are extremely useful as luminescent agents for organic EL elements which emit visible light in a red-color region, and can be quite useful as luminescent agents in organic EL elements and laser-active substances in dye lasers, as well as luminous bodies as lighting sources for lighting devices, and information displays for visually displaying information.Type: GrantFiled: October 22, 2001Date of Patent: June 3, 2003Assignee: Kabushiki Kaisha Hayashibara Seibutsu Kagaku KenkyujoInventors: Yoshio Taniguchi, Toshiki Koyama, Chihaya Adachi, Tomoyasu Saitou, Makoto Satsuki, Akira Shinpo, Sadaharu Suga, Shizuo Tokito, Hisayoshi Fujikawa, Koji Noda, Atsushi Miura, Yasunori Taga
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Publication number: 20020052501Abstract: 4-Cyanocoumarin derivatives which have a distinct sensitivity to visible light, distinct luminescent ability, and satisfactory applicability for photochemical polymerization, dye lasers, and organic electroluminescent elements. Since most of the derivatives have a fluorescent maximum wavelength of 600 to 650 nm, particularly, 610 to 630 nm, they are extremely useful as luminescent agents for organic EL elements which emit visible light in a red-color region, and can be quite useful as luminescent agents in organic EL elements and laser-active substances in dye lasers, as well as luminous bodies as lighting sources for lighting devices, and information displays for visually displaying information.Type: ApplicationFiled: October 22, 2001Publication date: May 2, 2002Applicant: KABUSHIKI KAISHA HAYASHIBARA SEIBUTSU KAGAKU KENKYUJOInventors: Yoshio Taniguchi, Toshiki Koyama, Chihaya Adachi, Tomoyasu Saitou, Makoto Satsuki, Akira Shinpo, Sadaharu Suga, Shizuo Tokito, Hisayoshi Fujikawa, Koji Noda, Atsushi Miura, Yasunori Taga
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Patent number: 6241773Abstract: A biomedical article made of alumina ceramics including an aluminum oxide having a purity of not less than 99.95% and unavoidable impurities as remainder. The alumina ceramics contains no sintering agent. The alumina ceramics has no irregularities in the crystal grain size, and has a strength necessary for biomedical article, and have a crystal grain size of less than 1.0 &mgr;m to assure excellent slidability.Type: GrantFiled: June 28, 1999Date of Patent: June 5, 2001Assignees: Kyocera CorporationInventors: Syunzo Tashima, Toshihiko Shimotoso, Yoshio Taniguchi
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Patent number: 5583905Abstract: In an X-ray imaging apparatus, unwanted electron charges caused by pulsatory X-ray trailing edges are eliminated from an X-ray image signal of a biological body under medical examination.Type: GrantFiled: February 14, 1994Date of Patent: December 10, 1996Assignee: Kabushiki Kaisha ToshibaInventors: Masayuki Nishiki, Yoshio Taniguchi
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Patent number: 5357357Abstract: An organic thin film obtained by spreading an organic substance comprising a polymer on a liquid surface, and compressing the spread substance unidirectionally or in two directions facing each other, in which organic thin film the principal chain of said polymer in the surface of the film has been oriented perpendicularly to the direction of the compression, and a method for producing the same. A liquid crystal display device comprising substrates, a polarizer, electrodes at least one of which is transparent, if necessary semiconductor substrates at least one of which is transparent, an orientation-controlling film and a liquid crystal layer, among which at least one of the polarizer, electrode, semiconductor substrate, orientation-controlling film and liquid crystal layer comprises an organic thin film. The orientation-controlling film may be an organic thin film in which the film-forming molecules have been uniformly oriented in a particular direction in the surface of the film.Type: GrantFiled: September 19, 1990Date of Patent: October 18, 1994Assignee: Hitachi, Ltd.Inventors: Shuji Imazeki, Yasushi Tomioka, Naoki Tanaka, Yoshio Taniguchi, Hideaki Kawakami, Katsumi Kondo, Masami Yamasaki
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Patent number: 5351320Abstract: An optical modulating element has a core layer and first and second cladding layers sandwiching the core layer. The core layer is made of one or semiconductors belonging to a point group 43m or 42m, and has TM.sub.00 and TE.sub.00 propagation modes. The direction of light of said TM.sub.00 and TE.sub.00 propagation modes is parallel to the [110] or [-110] direction of crystal orientation. The change amount of an index of refraction of the core layer caused by the application of an electric field to the core layer in the direction parallel to the [001] direction is different for the two propagation modes.Type: GrantFiled: June 24, 1993Date of Patent: September 27, 1994Assignee: Hitachi, Ltd.Inventors: Tatsuo Kanetake, Masashi Kiguchi, Yoshio Taniguchi
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Patent number: 5293567Abstract: In an optical recording method which utilizes hole burning, a plurality of sorts of light absorption centers having different properties are caused to coexist or to exist in the form of layers, thereby to remove the problem that, although the multiplicity of recording is high, the spacial recording density is low, so the overall recording density is low. Accordingly, the present invention can provide an optical recording method of very high recording density.Type: GrantFiled: September 24, 1992Date of Patent: March 8, 1994Assignee: Hitachi, Ltd.Inventors: Motoyasu Terao, Masahiro Ojima, Yoshio Taniguchi, Yasushi Tomioka, Shuji Imazeki
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Patent number: 5235449Abstract: A method for producing a polarizer patterned with a plural number of portions having a polarizing ability or direction of polarization comprising the first step of producing a surface oriented in a pre-determined direction on a substrate, the second step of producing a polymerizable molecular layer which comprises polymerizable molecules on the above surface, the third step of polymerizing the molecules in said polymerizable molecular layer into a desired pattern and the fourth step of removing the unpolymerized portion of said polymerizable molecular layer.Type: GrantFiled: March 1, 1991Date of Patent: August 10, 1993Assignee: Hitachi, Ltd.Inventors: Shuji Imazeki, Yasushi Tomioka, Naoki Tanaka, Tatsuo Kanetake, Seiichi Kondo, Yoshio Taniguchi, Katsumi Kondo, Hideaki Kawakami
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Patent number: 5189474Abstract: A developing apparatus of the type including a developing roller disposed in a development box, a stirring roller parallel spaced apart from the developing roller, and a toner replenisher pipe disposed in the stirring roller, wherein the stirring roller has a substantially hollow cylindrical shape and includes a plurality of axial ribs extending parallel to a longitudinal axis of the stirring roller and disposed equidistantly from the longitudinal axis, and a plurality of helical blades integral with the axial ribs and skewed relative to the longitudinal axis of the stirring roller, said hollow cylindrical stirring roller being composed of at least two identical segments which are divided by a plane extending through said longitudinal axis of said stirring roller. The stirring roller is simple in construction and can be manufactured at a low cost.Type: GrantFiled: April 18, 1991Date of Patent: February 23, 1993Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Shigeyuki Miya, Takenori Shibata, Yoshihiro Komatsu, Hiromichi Miyoshi, Tadashi Hirata, Yoshio Taniguchi, Takuo Kobayashi