Patents by Inventor Takayuki Gotoh
Takayuki Gotoh 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: 20220262019Abstract: A surface characteristics evaluation method for evaluating a surface characteristic of a painted surface including a glittering material, including: a multi-angle condition image acquisition step S101 for acquiring a multi-angle condition image including multi-angle conditions in a continuous manner by performing an image-capturing process to capture how a reflection condition of the painted surface changes when rotating an illumination device 2 emitting light onto the painted surface, the image-capturing process being performed by the line scan camera 4 while a sample P having the painted surface is moved in a certain direction; an in-plane chromaticity distribution acquisition step S102 for acquiring an in-plane chromaticity distribution of the painted surface from the multi-angle condition image acquired; and a surface characteristics evaluation step S107 for calculating particle characteristics S as surface characteristics evaluation values of the multi-angle conditions, on the basis of the in-plane chromType: ApplicationFiled: July 29, 2020Publication date: August 18, 2022Inventors: Shuhei WATANABE, Takayuki GOTOH, Takuroh SONE
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Patent number: 10614563Abstract: An evaluation device includes a projector to project a pattern having an edge component onto an object, an imaging device to capture an image of the object, a reflective-property correction unit to correct an amount of change in shape of a virtual image of the pattern reflected in the object, using reflective-property data of a surface of the object, and an evaluation-value calculator to evaluate image clarity of the surface of the object based on the corrected amount of change. A computer-readable non-transitory recording medium storing a program for causing a computer to execute a method. The method includes correcting an amount of change in shape of a virtual image of the pattern reflected in the object based on image data that is obtained by capturing an object onto which a pattern having an edge component is projected, using reflective-property data of a surface of the object.Type: GrantFiled: May 31, 2018Date of Patent: April 7, 2020Assignee: RICOH COMPANY, LTD.Inventors: Shuhei Watanabe, Takuroh Sone, Hideyuki Kihara, Takayuki Gotoh, Takashi Soma, Akihiro Iwamatsu
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Patent number: 10593031Abstract: A texture evaluation apparatus includes a projector, an imager, and an evaluator. The projector is configured to project a two-dimensional pattern having an edge element onto an object. The imager is configured to capture an image of a surface of the object. The evaluator is configured to calculate an amount of shape change of a virtual image of the two-dimensional pattern in the image, and evaluate texture of the object based on the amount of shape change and sensory evaluation information obtained in advance.Type: GrantFiled: March 15, 2017Date of Patent: March 17, 2020Assignee: RICOH COMPANY, LTD.Inventors: Shuhei Watanabe, Takuroh Sone, Hideyuki Kihara, Takashi Soma, Akihiro Iwamatsu, Naoki Nakamura, Takayuki Gotoh
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Patent number: 10168215Abstract: A color measurement apparatus includes at least one illuminator, an imager, and circuitry. The circuitry is configured to normalize each pixel included in an imaging region of one of the spectral reflectance images of the measurement target irradiated with light at a specific illumination angle of the plurality of illumination angles, with one of the spectral reflectance images of the reference object irradiated with light at the specific illumination angle, for each of the plurality of illumination angles so as to generate normalized spectral reflectance images of the measurement target. The circuitry further calculates a numerical value of at least one color for each pixel of the normalized spectral reflectance images of the measurement target, for respective ones of the plurality of illumination angles, to measure color of the surface of the measurement target.Type: GrantFiled: March 5, 2018Date of Patent: January 1, 2019Assignee: Ricoh Company, Ltd.Inventors: Takayuki Gotoh, Takuroh Sone, Akihiro Iwamatsu, Hideyuki Kihara, Takashi Soma, Shuhei Watanabe
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Publication number: 20180350059Abstract: An evaluation device includes a projector to project a pattern having an edge component onto an object, an imaging device to capture an image of the object, a reflective-property correction unit to correct an amount of change in shape of a virtual image of the pattern reflected in the object, using reflective-property data of a surface of the object, and an evaluation-value calculator to evaluate image clarity of the surface of the object based on the corrected amount of change. A computer-readable non-transitory recording medium storing a program for causing a computer to execute a method. The method includes correcting an amount of change in shape of a virtual image of the pattern reflected in the object based on image data that is obtained by capturing an object onto which a pattern having an edge component is projected, using reflective-property data of a surface of the object.Type: ApplicationFiled: May 31, 2018Publication date: December 6, 2018Inventors: Shuhei WATANABE, Takuroh SONE, Hideyuki KlHARA, Takayuki GOTOH, Takashi SOMA, Akihiro IWAMATSU
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Publication number: 20180259394Abstract: A color measurement apparatus includes at least one illuminator, an imager, and circuitry. The circuitry is configured to normalize each pixel included in an imaging region of one of the spectral reflectance images of the measurement target irradiated with light at a specific illumination angle of the plurality of illumination angles, with one of the spectral reflectance images of the reference object irradiated with light at the specific illumination angle, for each of the plurality of illumination angles so as to generate normalized spectral reflectance images of the measurement target. The circuitry further calculates a numerical value of at least one color for each pixel of the normalized spectral reflectance images of the measurement target, for respective ones of the plurality of illumination angles, to measure color of the surface of the measurement target.Type: ApplicationFiled: March 5, 2018Publication date: September 13, 2018Inventors: Takayuki GOTOH, Takuroh SONE, Akihiro IWAMATSU, Hideyuki KlHARA, Takashi SOMA, Shuhei WATANABE
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Publication number: 20170270655Abstract: A texture evaluation apparatus includes a projector, an imager, and an evaluator. The projector is configured to project a two-dimensional pattern having an edge element onto an object. The imager is configured to capture an image of a surface of the object. The evaluator is configured to calculate an amount of shape change of a virtual image of the two-dimensional pattern in the image, and evaluate texture of the object based on the amount of shape change and sensory evaluation information obtained in advance.Type: ApplicationFiled: March 15, 2017Publication date: September 21, 2017Inventors: Shuhei WATANABE, Takuroh SONE, Hideyuki KlHARA, Takashi SOMA, Akihiro IWAMATSU, Naoki NAKAMURA, Takayuki GOTOH
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Patent number: 9348297Abstract: An image forming apparatus includes an image carrier, a charging mechanism to charge a surface of the image carrier, an electrostatic latent image forming mechanism to form an electrostatic latent image on the surface of the image carrier, a developing mechanism to develop the electrostatic latent image formed on the surface of the image carrier into a toner image, a transfer mechanism to transfer the toner image on the surface of the image carrier to a transfer body, and a cleaning mechanism including a cleaning blade to clean a transfer residue toner adhering to the surface of the image carrier by contacting the surface of the image carrier. The cleaning blade includes a strip shaped elastic blade and a surface layer formed on an opposing surface of the strip shaped elastic blade opposite the surface of the image carrier.Type: GrantFiled: May 22, 2014Date of Patent: May 24, 2016Assignee: RICOH COMPANY, LTD.Inventors: Masanobu Gondoh, Shinji Nohsho, Shohei Gohda, Kaori Toyama, Masahiro Ohmori, Yohta Sakon, Ichiro Maeda, Takeshi Tada, Takayuki Gotoh
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Publication number: 20140356042Abstract: An image forming apparatus includes an image carrier, a charging mechanism to charge a surface of the image carrier, an electrostatic latent image forming mechanism to form an electrostatic latent image on the surface of the image carrier, a developing mechanism to develop the electrostatic latent image formed on the surface of the image carrier into a toner image, a transfer mechanism to transfer the toner image on the surface of the image carrier to a transfer body, and a cleaning mechanism including a cleaning blade to clean a transfer residue toner adhering to the surface of the image carrier by contacting the surface of the image carrier. The cleaning blade includes a strip shaped elastic blade and a surface layer formed on an opposing surface of the strip shaped elastic blade opposite the surface of the image carrier.Type: ApplicationFiled: May 22, 2014Publication date: December 4, 2014Applicant: RICOH COMPANY, LTD.Inventors: Masanobu GONDOH, Shinji NOHSHO, Shohei GOHDA, Kaori TOYAMA, Masahiro OHMORI, Yohta SAKON, Ichiro MAEDA, Takeshi TADA, Takayuki GOTOH
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Patent number: 8143427Abstract: It is to provide a method for efficiently producing an aminoacetylpyrrolidinecarbonitrile derivative which is useful as a DPP-IV inhibitor. It is a method for producing an aminoacetylpyrrolidinecarbonitrile derivative represented by the formula (2): (in the formula, A and R1 are as defined in the following), comprising allowing an acid to act on an aminoacetylpyrrolidinecarboxamide derivative represented by the formula (1): (in the formula, A represents CH2, CHF or CF2; and R1 represents a secondary amino group which may be substituted), and then allowing a dehydrating agent to act thereon.Type: GrantFiled: March 21, 2008Date of Patent: March 27, 2012Assignee: Kyorin Pharmaceutical Co., Ltd.Inventors: Kazuo Orita, Takayuki Gotoh
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Patent number: 8084622Abstract: An industrially advantageous process for the production of (3R,4S)-3-cyclopropylaminomethyl-4-fluoropyrrolidine or an enantiomer thereof that is useful as an intermediate for the production of novel antimicrobial agents 10-(3-cyclopropylaminomethyl-4-fluoropyrrolidinyl)pyridobenzoxazine carboxylic acid derivatives. Highly stereoselective asymmetric hydrogenation of 1-protected-4-alkoxycarbonyl-3-oxopyrrolidine, followed by ester hydrolysis, followed by amidation with cyclopropylamine gives crude crystals. The crude crystals are purified by recrystallization to give a novel compound (3R,4S)-1-protected-3-cyclopropylcarbamoyl-4-hydroxypyrrolidine or an enantiomer thereof at high optical purity. The use of these intermediates enables industrial production of high-quality products of (3R,4S)-3-cyclopropylaminomethyl-4-fluoropyrrolidine or an enantiomer thereof. The process is highly simple and can produce the desired products at high purity and stable yields.Type: GrantFiled: November 6, 2009Date of Patent: December 27, 2011Assignee: Kyorin Pharmaceutical Co., Ltd.Inventors: Takayuki Gotoh, Ichirou Araya
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Publication number: 20100099892Abstract: It is to provide a method for efficiently producing an aminoacetylpyrrolidinecarbonitrile derivative which is useful as a DPP-IV inhibitor. It is a method for producing an aminoacetylpyrrolidinecarbonitrile derivative represented by the formula (2): (in the formula, A and R1 are as defined in the following), comprising allowing an acid to act on an aminoacetylpyrrolidinecarboxamide derivative represented by the formula (1): (in the formula, A represents CH2, CHF or CF2; and R1 represents a secondary amino group which may be substituted), and then allowing a dehydrating agent to act thereon.Type: ApplicationFiled: March 21, 2008Publication date: April 22, 2010Inventors: Kazuo Orita, Takayuki Gotoh
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Publication number: 20100056805Abstract: An industrially advantageous process for the production of (3R,4S)-3-cyclopropylaminomethyl-4-fluoropyrrolidine or an enantiomer thereof that is useful as an intermediate for the production of novel antimicrobial agents 10-(3-cyclopropylaminomethyl-4-fluoropyrrolidinyl)pyridobenzoxazine carboxylic acid derivatives. Highly stereoselective asymmetric hydrogenation of 1-protected-4-alkoxycarbonyl-3-oxopyrrolidine, followed by ester hydrolysis, followed by amidation with cyclopropylamine gives crude crystals. The crude crystals are purified by recrystallization to give a novel compound (3R,4S)-1-protected-3-cyclopropylcarbamoyl-4-hydroxypyrrolidine or an enantiomer thereof at high optical purity. The use of these intermediates enables industrial production of high-quality products of (3R,4S)-3-cyclopropylaminomethyl-4-fluoropyrrolidine or an enantiomer thereof. The process is highly simple and can produce the desired products at high purity and stable yields.Type: ApplicationFiled: November 6, 2009Publication date: March 4, 2010Inventors: Takayuki Gotoh, Ichirou Araya
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Patent number: 7667049Abstract: An industrially advantageous process for the production of (3R,4S)-3-cyclopropylaminomethyl-4-fluoropyrrolidine or an enantiomer thereof that is useful as an intermediate for the production of novel antimicrobial agents 10-(3-cyclopropylaminomethyl-4-fluoropyrrolidinyl)pyridobenzoxazine carboxylic acid derivatives. Highly stereoselective asymmetric hydrogenation of 1-protected-4-alkoxycarbonyl-3-oxopyrrolidine, followed by ester hydrolysis, followed by amidation with cyclopropylamine gives crude crystals. The crude crystals are purified by recrystallization to give a novel compound (3R,4S)-1-protected-3-cyclopropylcarbamoyl-4-hydroxypyrrolidine or an enantiomer thereof at high optical purity. The use of these intermediates enables industrial production of high-quality products of (3R,4S)-3-cyclopropylaminomethyl-4-fluoropyrrolidine or an enantiomer thereof. The process is highly simple and can produce the desired products at high purity and stable yields.Type: GrantFiled: March 8, 2007Date of Patent: February 23, 2010Assignee: Kyorin Pharmaceutical Co., Ltd.Inventors: Takayuki Gotoh, Ichirou Araya
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Publication number: 20090023935Abstract: An industrially advantageous process for the production of (3R,4S)-3-cyclopropylaminomethyl-4-fluoropyrrolidine or an enantiomer thereof that is useful as an intermediate for the production of novel antimicrobial agents 10-(3-cyclopropylaminomethyl-4-fluoropyrrolidinyl)pyridobenzoxazine carboxylic acid derivatives. Highly stereoselective asymmetric hydrogenation of 1-protected-4-alkoxycarbonyl-3-oxopyrrolidine, followed by ester hydrolysis, followed by amidation with cyclopropylamine gives crude crystals. The crude crystals are purified by recrystallization to give a novel compound (3R,4S)-1-protected-3-cyclopropylcarbamoyl-4-hydroxypyrrolidine or an enantiomer thereof at high optical purity. The use of these intermediates enables industrial production of high-quality products of (3R,4S)-3-cyclopropylaminomethyl-4-fluoropyrrolidine or an enantiomer thereof. The process is highly simple and can produce the desired products at high purity and stable yields.Type: ApplicationFiled: March 8, 2007Publication date: January 22, 2009Inventors: Takayuki Gotoh, Ichirou Araya
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Patent number: 6823789Abstract: Divided shaft members constitute a cleaning fabric take-up shaft, and are secured at both ends by shaft member fixing means that is attached to a side plate. Shaft member fixing portions include a shaft end supporter, for supporting the end of the shaft member, and a plug that is fitted to a shaft receiving section. A wedge portion is provided, which runs across the center of the shaft end supporter and is projected linearly. When this wedge portion is inserted between the shaft members, the diameter of the shaft is increased. At this time, the winding of the cleansing fabric is performed. To dispose of the wound cleaning fabric, the shaft members are detached from the shaft member fixing portions and the wedge is extracted from the shaft members, so that the diameter is reduced, and the cleaning fabric is disengaged from the shaft members. As a result, the cleaning fabric take-up shaft can be removed from the cleaning fabric roll.Type: GrantFiled: April 17, 2001Date of Patent: November 30, 2004Assignee: Baldwin-Japan Ltd.Inventors: Akira Hara, Hideo Oyaizu, Shigeo Isobe, Takayuki Gotoh
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Publication number: 20010054362Abstract: Divided shaft members constitute a cleaning fabric take-up shaft, and are secured at both ends by shaft member fixing means that is attached to a side plate. Shaft member fixing portions include a shaft end supporter, for supporting the end of the shaft member; and a plug that is fitted to a shaft receiving section. A wedge portion is provided, which runs across the center of the shaft end supporter and is projected linearly. When this wedge portion is inserted between the shaft members, the diameter of the shaft is increased. At this time, the winding of the cleansing fabric is performed. To dispose of the wound cleaning fabric, the shaft members are detached from the shaft member fixing portions and the wedge is extracted from the shaft members, so that the diameter is reduced, and the cleaning fabric is disengaged from the shaft members. As a result, the cleaning fabric take-up shaft can be removed from the cleaning fabric roll.Type: ApplicationFiled: April 17, 2001Publication date: December 27, 2001Inventors: Akira Hara, Hideo Oyaizu, Shigeo Isobe, Takayuki Gotoh
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Publication number: 20010047561Abstract: Divided shaft members constitute a cleaning fabric take-up shaft, and are secured at both ends by shaft member fixing means that is attached to a side plate. Shaft member fixing portions include a shaft end supporter, for supporting the end of the shaft member; and a plug that is fitted to a shaft receiving section. A wedge portion is provided, which runs across the center of the shaft end supporter and is projected linearly. When this wedge portion is inserted between the shaft members, the diameter of the shaft is increased. At this time, the winding of the cleansing fabric is performed. To dispose of the wound cleaning fabric, the shaft members are detached from the shaft member fixing portions and the wedge is extracted from the shaft members, so that the diameter is reduced, and the cleaning fabric is disengaged from the shaft members. As a result, the cleaning fabric take-up shaft can be removed from the cleaning fabric roll.Type: ApplicationFiled: April 17, 2001Publication date: December 6, 2001Inventors: Akira Hara, Hideo Oyaizu, Shigeo Isobe, Takayuki Gotoh
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Patent number: 4496834Abstract: A focus detecting photoelectric device includes a plurality of photodiodes each formed by an amorphous silicon layer sandwiched between transparent and non-transparent electrodes. The photodiodes are provided in pairs and are aligned in an array and deposited on a glass plate such that the transparent electrode is directly mounted on the glass plate. The photodiodes in a pair are located closely adjacent to, but in a spaced relation with, each other and are electrically connected in series to each other. An image formed on the photodiodes in a pair effects the generation of photocurrent from the photodiodes such that the photocurrents from both photodiodes are approximately the same when the image is out of focus, and they vary from each other as the image becomes sharp.Type: GrantFiled: April 6, 1982Date of Patent: January 29, 1985Assignee: Minolta Camera Kabushiki KaishaInventors: Yasuhiro Nanba, Takayuki Gotoh, Eiji Yamakawa, Toshihiko Karasaki
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Patent number: 4415246Abstract: The disclosure relates to a focus detecting device for detecting a focusing condition of an objective lens on a focal plane by the detection of contrast of an image formed by the objective lens. The device includes an elongated biconcave cylindrical lens for forming a line image, a glass plate positioned parallelly to the cylindrical lens, and a plurality of photodiodes deposited on the opposite flat surfaces of the glass plate in arrays parallel to the axial direction of the elongated cylindrical lens such that the photodiode arrays on the opposite flat surfaces are disposed alternately in an interlaid manner. When the line image formed on the photodiodes deposited on one surface of the glass plate is front-focus condition and the line image formed on the photodiodes deposited on the other surface of the glass plate is rear-focus condition, a detector indicates that the line image formed on a plane between the opposite flat surfaces is in-focus condition.Type: GrantFiled: June 10, 1982Date of Patent: November 15, 1983Assignee: Minolta Camera Kabushiki KaishaInventors: Toshihiko Karasaki, Takayuki Gotoh, Yasuhiro Namba, Eiji Yamakawa