Patents by Inventor Shuji Senda
Shuji Senda 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: 7221796Abstract: A character input device for inputting a character by extracting and recognizing a character from an image of a document photographed by a photographing device includes the photographing device. The device stores a recognition result of the extracted and recognized character and reliability indicative of sureness of recognition. Character recognition results of images obtained by repeatedly photographing a whole or part of the document are compared in order to input the character based on a character recognition result whose reliability is highest. A character input method includes adding reliability indicative of sureness of recognition to a recognition result of the character, comparing character recognition results of images obtained by repeatedly photographing the whole or part of the document, and selecting a character recognition result whose reliability is highest.Type: GrantFiled: March 7, 2003Date of Patent: May 22, 2007Assignee: NEC CorporationInventors: Kyosuke Nishiyama, Shuji Senda
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Publication number: 20060008841Abstract: The present invention provides a method for obtaining an aptamer capable of specifically adsorbing to Verotoxin-1 produced by Enterohemorrhagic Escherichia coli by an in vitro selection method utilizing affinity chromatography, particularly, a method including use of an affinity column immobilizing thereon a peptide having an amino acid sequence of Verotoxin-1, for the affinity chromatography, and a single strand nucleic acid molecule, which is an aptamer capable of specifically adsorbing to Verotoxin-1.Type: ApplicationFiled: September 12, 2005Publication date: January 12, 2006Applicant: Nitto Denko CorporationInventors: Keisaku Okada, Shuji Senda, Akio Kobayashi, Eiichiro Fukusaki, Takeshi Honda, Itaru Yanagihara, Tsuyoshi Nakanishi
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Publication number: 20050282226Abstract: The present invention provides an aptamer capable of specifically adsorbing to bisphenol A suspected to be an endocrine disrupter as a target molecule, a method for obtaining an aptamer capable of specifically adsorbing to bisphenol A by an in vitro selection method utilizing affinity chromatography using a carrier immobilizing bisphenol A, particularly, a method including use of an antagonistic elution buffer containing an amphiprotic organic solvent for elution by the affinity chromatography, and a single-strand nucleic acid molecule which is an aptamer obtained thereby.Type: ApplicationFiled: August 29, 2005Publication date: December 22, 2005Applicant: Nitto Denko CorporationInventors: Keisaku Okada, Shuji Senda, Akio Kobayashi, Eiichiro Fukusaki, Itaru Yanagihara, Tsuyoshi Nakanishi
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Patent number: 6753190Abstract: The present invention relates to an immunological detection method capable of performing detection of an analyte in a test sample, and a kit used therefor. There is provided an immunological detection method for detecting an analyte by using a water-absorbent substrate in which a capture region is positioned in a given region on a surface thereof, the capture region being immobilized with a first immunochemical component capable of specifically binding to the analyte, wherein the detection signal is amplified and a kit used therefor.Type: GrantFiled: February 29, 2000Date of Patent: June 22, 2004Assignee: Nitto Denko CorporationInventors: Keisaku Okada, Takeshi Saika, Shuji Senda, Kenjiro Mori, Ken Sato
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Publication number: 20030169924Abstract: A character input device including a data processing device which is provided with a character extraction device for extracting an image of a character portion from an image photographed by a photographing device, a character recognition device for recognizing a character from the image of the character portion and making a character recognition result with its reliability added into character recognition data, and a recognition data synthesizing device for detecting and connecting overlap portions in the character recognition data obtained from a plurality of images of the same document, as well as selecting character recognition data whose reliability is high with respect to the overlap portions to synthesize the plurality of the character recognition data into one synthetic recognition data; a recognition data storage device for storing synthetic recognition data; and a display device for displaying a photographed image and a character recognition result.Type: ApplicationFiled: March 7, 2003Publication date: September 11, 2003Applicant: NEC CORPORATIONInventors: Kyosuke Nishiyama, Shuji Senda
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Publication number: 20030119159Abstract: The present invention provides a method for obtaining an aptamer capable of specifically adsorbing to Verotoxin-1 produced by Enterohemorrhagic Escherichia coli by an in vitro selection method utilizing affinity chromatography, particularly, a method including use of an affinity column immobilizing thereon a peptide having an amino acid sequence of Verotoxin-1, for the affinity chromatography, and a single strand nucleic acid molecule, which is an aptamer capable of specifically adsorbing to Verotoxin-1.Type: ApplicationFiled: July 3, 2002Publication date: June 26, 2003Applicant: Nitto Denko CorporationInventors: Keisaku Okada, Shuji Senda, Akio Kobayashi, Eiichiro Fukusaki, Takeshi Honda, Itaru Yanagihara, Tsuyoshi Nakanishi
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Publication number: 20030064530Abstract: The present invention provides an aptamer capable of specifically adsorbing to bisphenol A suspected to be an endocrine disrupter as a target molecule, a method for obtaining an aptamer capable of specifically adsorbing to bisphenol A by an in vitro selection method utilizing affinity chromatography using a carrier immobilizing bisphenol A, particularly, a method including use of an antagonistic elution buffer containing an amphiprotic organic solvent for elution by the affinity chromatography, and a single-strand nucleic acid molecule which is an aptamer obtained thereby.Type: ApplicationFiled: July 3, 2002Publication date: April 3, 2003Applicant: Nitto Denko CorporationInventors: Keisaku Okada, Shuji Senda, Akio Kobayashi, Eiichiro Fukusaki, Itaru Yanagihara, Tsuyoshi Nakanishi
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Publication number: 20020086339Abstract: An immunoassay method comprising bringing an immobilized phase comprising, at different positions on a water-absorbable base material, at least two first immunity substances capable of specifically binding with at least two kinds of assay target substances selected from the group consisting of verotoxin-producing Escherichia coli, verotoxin and human hemoglobin contained in a test sample, into contact with a test sample and a liquid containing labeled immunity substances each comprising a second immunity substance that is labeled with colored particles and capable of binding with said assay target substance, thereby to form an assay target substance-labeled immunity substance complex and to bind said complex with respective first immunity substances at the immobilized phase.Type: ApplicationFiled: January 4, 2002Publication date: July 4, 2002Inventors: Keisaku Okada, Kenjiro Mori, Shuji Senda
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Patent number: 6391652Abstract: An immunoassay method comprising bringing an immobilized phase comprising, at different positions on a water-absorbable base material, at least two first immunity substances capable of specifically binding with at least two kinds of assay target substances selected from the group consisting of verotoxin-producing Escherichia coli, verotoxin and human hemoglobin contained in a test sample, into contact with a test sample and a liquid containing labeled immunity substances each comprising a second immunity substance that is labeled with colored particles and capable of binding with said assay target substance, thereby to form an assay target substance-labeled immunity substance complex and to bind said complex with respective first immunity substances at the immobilized phase.Type: GrantFiled: July 22, 1998Date of Patent: May 21, 2002Assignee: Nitto Denko CorporationInventors: Keisaku Okada, Kenjiro Mori, Shuji Senda
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Publication number: 20010009765Abstract: An immunoassay method comprising bringing an immobilized phase comprising, at different positions on a water-absorbable base material, at least two first immunity substances capable of specifically binding with at least two kinds of assay target substances selected from the group consisting of verotoxin-producing Escherichia coli, verotoxin and human hemoglobin contained in a test sample, into contact with a test sample and a liquid containing labeled immunity substances each comprising a second immunity substance that is labeled with colored particles and capable of binding with said assay target substance, thereby to form an assay target substance-labeled immunity substance complex and to bind said complex with respective first immunity substances at the immobilized phase.Type: ApplicationFiled: July 22, 1998Publication date: July 26, 2001Inventors: KEISAKU OKADA, KENJIRO MORI, SHUJI SENDA
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Patent number: 6203900Abstract: A pressure sensitive adhesive sheet for the detection of microorganisms, which comprises a laminate of an adhesive layer mainly composed of a water-soluble polymer and a water-permeable membrane which does not allow passage of the microorganisms; a pressure sensitive adhesive sheet for the detection of microorganisms, wherein the surface of the adhesive layer has a contact angle with water of not more than 90°; and a method for detecting a microorganism, which comprises bringing the surface of an adhesive layer of a pressure sensitive adhesive sheet into contact with the surface of a test object, and then bringing the surface of the adhesive layer into contact with water, said adhesive layer or water containing a chromogenic reagent. The use of the laminate makes it possible to leave only stained microorganisms on the water-permeable membrane and to precisely observe the color developed by the microorganisms.Type: GrantFiled: June 30, 1997Date of Patent: March 20, 2001Assignee: Nitto Denko CorporationInventors: Takeshi Saika, Shuji Senda, Yoshitaka Kazuse, Akio Iwama, Tetsuji Sugii, Masao Nasu, Katsuji Tani, Nobuyasu Yamaguchi
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Patent number: 5814326Abstract: An insect communication disturbing material comprises a covering material and a pheromone component to be included therein, wherein the included pheromone component exudes on the surface of the covering material in such a condition that it can be transferred and adhered to insect pests which contact with the insect communication disturbing material. The material is used in a method for disturbing insect communication which comprises attracting male adult insects to the above-described material, thereby effecting their contact with the insect communication disturbing material and adhesion of the pheromone component to the body of the male adults, and subsequently allowing the contacted males to be free without capturing them.Type: GrantFiled: November 3, 1995Date of Patent: September 29, 1998Assignee: Nitto Denko CorporationInventors: Shuji Senda, Takeshi Saika
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Patent number: 5677155Abstract: A process for preparing the sex pheromone of Lymantria dispar L. effectively which comprises the steps of reacting 1-bromodecane and propargyl alcohol tetrahydropyranylether in the presence of sodium hydroxide to give 1-tetrahydropyranyloxy-2-tridecyne, treating the tetrahydropyranyloxy-2-tridecyne with p-toluenesulfonic acid to give 2-tridecyn-1-ol, catalystic-hydrogenating the 2-tridecyn-1-ol in the presence of Lindlar catalyst to give (Z)-2-tridecen-1-ol, oxidizing the (Z)-2-tridecen-1-ol with peroxide to give (.+-.)-cis-2,3-epoxy-1-tridecanol, reacting the (.+-.Type: GrantFiled: October 25, 1995Date of Patent: October 14, 1997Assignee: Nitto Denko Co., Ltd.Inventors: Eiichiro Fukusaki, Tetsuo Omata, Shuji Senda
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Patent number: 5374766Abstract: This invention relates to a novel ester which presents as (CF 1) and a method for the production of the same as well as a process for hydrolysis and a method for the determination of an optical purity using this ester, and the object thereof is to provide an intermediate for the synthesis or various natural products, which has high stability, and the optical purity of which can readily be determined, according to the esterification of 1-oxo-5-hydroxymethyl-2-cyclohexene which is unstable to acids and alkalis.Type: GrantFiled: January 30, 1992Date of Patent: December 20, 1994Assignee: Nitto Denko Co., Ltd.Inventors: Shuji Senda, Eiichiro Fukuzaki, Yutaka Nakazono, Tetsuo Omata
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Patent number: 5272069Abstract: This invention relates to methods for producing optically active hydroxyesters and also to methods for producing and purifying optically active five-membered ring lactones.More specifically, the invention provides methods for efficiently, safely, and selectively producing and purifying optically active (R)-hydroxyester (shown by formula 1) and optically active (S)-hydroxyester (shown by formula 2) in high state of purity at ordinary temperature.The invention also relates to application of the interconvertible optically active (R)-five-membered ring lacton (shown by formula 5).They are intermediates for synthesizing various medicines, agricultural chemicals, and biologically active substances, however especially useful for synthesizing pheromone of a noxious insect, Popillia japonica Newman. ##STR1## (Here, R.sub.1 denotes --C.tbd.C--R.sub.3 or --C.dbd.C--R.sub.3 ; R.sub.2 and R.sub.3 denote straight chain or branched alkyl groups containing 1 to 10 carbon atoms; R.sub.Type: GrantFiled: December 27, 1990Date of Patent: December 21, 1993Assignee: Nitto Denko Co. Ltd.Inventors: Eiichiro Fukusaki, Shuji Senda, Yutaka Nakazono, Tetsuo Omata, Ken Hibino, Hiromichi Ota, Takeshi Sugai
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Patent number: 5213975Abstract: This invention relates to the methods of preparing optically active epoxy alcohol which is caracterized by the steps of adding carboxylic anhydride to racemic epoxy alcohol (formula 1) in the presence of a hydrolase in an organic solvent, esterifying (-)-form of the epoxy alcohol preferentially to be epoxy ester (formula 2), separating optically active epoxy ester (formula 2) from optically active epoxy alcohol (formula 3) to yield optically active epoxy alcohol (formula 4), so that epoxy alcohol (formula 1) in high purity can be obtained easily and safely at ordinary temperature.Type: GrantFiled: October 24, 1991Date of Patent: May 25, 1993Assignee: Nitto Denko Co., Ltd.Inventors: Eiichiro Fukusaki, Hiroshi Takahama, Minako Hada, Yasuyuki Kimura, Hiroyuki Yuasa, Yutaka Nakazono, Shuji Senda, Tetsuo Omata
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Patent number: 5077043Abstract: The present invention provides mainly (3Z,6Z)-cis-9,10-epoxy-1,3,6-heneicosatriene (formula 1) and (3Z, 6Z)-cis-9,10-epoxy-1,3,6-elcosatriene (formula 2) which are Hyphantria cunea sex pheromones. The invention provides attractant components having high attraction effect for Hyphantria cunea, that is, Hyphantria cumea sex pheromones having high attraction activity and the intermediates which can selectively synthesize such pheromones with great ease.Furthermore, the invention provides attractant compositions with high attraction effect for Hyphantria cunea including such above noted pheromones.Consequently, this invention is completed.Type: GrantFiled: June 11, 1990Date of Patent: December 31, 1991Assignees: Nitto Denko Co. Ltd., Fuji Yakuhin Kogyo Kabushiki KaishaInventors: Miklos Toth, Hans-Rudolf Buser, Heinrich Arn, Kenji Mori, Yasuo Ninomiya, Tetsuo Omata, Shuji Senda, Tadashi Takeuchi, Masakazu Aburatani
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Patent number: 5024832Abstract: A termites trail-marking pheromone which is (3Z,6Z,8E)-dodecatrienol, and a composition which comprises (3Z,6Z,8E)-dodecatrienol as an essential component and another component which is a trail-marking pheromone-like substance, and a method of detecting termites by using this composition or (3Z,6Z,8E)-dodecatrienol.The trail-marking pheromone and composition are highly safe in that they have no residual toxicity, and they have a stable, long-term trail-marking effect for termites. This invention provides a simple and rapid method of detecting termites, and a simple and effective method of capturing termites.Type: GrantFiled: December 13, 1989Date of Patent: June 18, 1991Assignee: Nitto Denko Co. Ltd.Inventors: Tetsuo Omata, Shuji Senda, Tamaki Tanaka, Eriko Kumagai, Chikara Kajimoto, Yutaka Nakazono
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Patent number: 4864056Abstract: Methyl (2S,3S,4R)-(+)- and (2R,3R,4S)-(-)-3-hydroxy-2,4-dimethylheptanoates which are important intermediates for synthesis of invictolide, one component of a queen recognition pheromone of red imported fire ant.Type: GrantFiled: July 21, 1988Date of Patent: September 5, 1989Assignee: Nitto Electric Industrial Co., Ltd.Inventors: Shuji Senda, Yutaka Nakazono, Kenji Mori
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Patent number: 4835292Abstract: (2R,3S,4R)-(+)- and (2S,3R,4S)-(-)-2,4-dimethyl-3-tetrahydropyranyloxy-1-heptanols which are important intermediates for synthesis of invictolide, one component of a queen recognition peromone of red imported fire ant.Type: GrantFiled: March 9, 1987Date of Patent: May 30, 1989Assignee: Nitto Electric IndustrialInventors: Shuji Senda, Yutaka Nakazono, Kenji Mori