Patents by Inventor Yuuki NAKADA
Yuuki NAKADA 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: 20240056541Abstract: An information processing apparatus includes circuitry. The circuitry transmits document data in response to a request signal transmitted from an information processing terminal and requesting output of the document data. Based on an information signal transmitted from the information processing terminal and indicating information that is not described in a document indicated by the document data, the circuitry generates latent-image data as a latent image including the information signal and the document data. The circuitry outputs the latent-image data and the document data.Type: ApplicationFiled: August 1, 2023Publication date: February 15, 2024Inventors: Kazuki ISHIKURA, Tadaaki OYAMA, Ayumu HASHIMOTO, Yuuki NAKADA
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Patent number: 11838481Abstract: An image reading apparatus includes a light emitter to irradiate a document with light, a first light guide to guide the light reflected by the document, an output device to output a readout signal obtained from the light reflected and guided by the first light guide, a base to correct shading in the readout signal, and circuitry to output a scanned image in which the shading of the document in the readout signal is corrected, based on correction data obtained from the readout signal of the base output from the output device, control a timing at which the light emitter emits the light and a timing at which the output device outputs a signal, and heat the first light guide with the light emitted from the light emitter before the output device outputs the readout signal of each of the document and the base.Type: GrantFiled: August 31, 2022Date of Patent: December 5, 2023Assignee: Ricoh Company, Ltd.Inventors: Takahiro Kurakata, Yuuki Nakada
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Publication number: 20230156139Abstract: An image reading apparatus includes a light emitter to irradiate a document with light, a first light guide to guide the light reflected by the document, an output device to output a readout signal obtained from the light reflected and guided by the first light guide, a base to correct shading in the readout signal, and circuitry to output a scanned image in which the shading of the document in the readout signal is corrected, based on correction data obtained from the readout signal of the base output from the output device, control a timing at which the light emitter emits the light and a timing at which the output device outputs a signal, and heat the first light guide with the light emitted from the light emitter before the output device outputs the readout signal of each of the document and the base.Type: ApplicationFiled: August 31, 2022Publication date: May 18, 2023Applicant: Ricoh Company, Ltd.Inventors: Takahiro Kurakata, Yuuki Nakada
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Patent number: 11115561Abstract: An inclination detecting device includes processing circuitry. The processing circuitry is configured to detect, in image information that is an image of an object imaged by an imaging device at an imaging position where a background member forms a background, a first boundary between the background member and a shadow of the object; detect a second boundary between the object and the shadow of the object in the image information; and detect an inclination of the object in the image information from the first boundary and the second boundary detected by the processing circuitry.Type: GrantFiled: January 29, 2020Date of Patent: September 7, 2021Assignee: RICOH COMPANY, LTD.Inventors: Hajime Tsukahara, Hiroki Shirado, Ayumu Hashimoto, Yuuki Nakada, Tomohiko Ono, Tatsuya Ozaki, Hiroshi Kubo, Yoshiaki Nagao, Kimiharu Yanagisawa, Masahiro Itoh
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Patent number: 11102365Abstract: An edge detecting device includes processing circuitry. The processing circuitry is configured to acquire first color information and second color information in an image including a document region and a background region outside the document region. The first color information is color information of the background region and the second color information is color information of the document region. The processing circuitry is configured to detect a boundary between the background region and the document region from a change in color information between the first color information and the second color information.Type: GrantFiled: April 7, 2020Date of Patent: August 24, 2021Assignee: RICOH COMPANY, LTD.Inventors: Tomohiko Ono, Hajime Tsukahara, Hiroki Shirado, Ayumu Hashimoto, Yuuki Nakada, Tatsuya Ozaki, Hiroshi Kubo, Yoshiaki Nagao, Kimiharu Yanagisawa, Masahiro Itoh
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Patent number: 11102375Abstract: A sheet reading apparatus includes a sheet table on which a sheet is placed, a conveyor configured to convey the sheet, a reading guide configured to guide the sheet conveyed by the conveyor, and a reading device configured to read a shadow of the sheet conveyed by the conveyor, for detection of an inclination of the sheet. The sheet reading apparatus further includes a transparent member disposed at a position on a reading line of the reading device. The position on the reading line is withdrawn from the sheet and adjacent to the reading guide.Type: GrantFiled: October 16, 2019Date of Patent: August 24, 2021Assignee: RICOH COMPANY, LTD.Inventors: Hiroshi Kubo, Kimiharu Yanagisawa, Hajime Tsukahara, Yoshiaki Nagao, Masahiro Itoh, Tatsuya Ozaki, Tomohiko Ono, Yuuki Nakada, Hiroki Shirado, Ayumu Hashimoto
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Patent number: 11102364Abstract: An inclination detecting device includes processing circuitry. The processing circuitry is configured to detect, in image information that is an image of an object imaged by an imaging device at an imaging position where a background member forms a background, a first boundary between the background member and a shadow of the object at detection positions in at least one of main-scanning and sub-scanning directions on an outline of the object; detect a second boundary between the object and the shadow of the object at detection positions in at least one of the main-scanning and sub-scanning directions on the outline of the object in the image information; detect a boundary group including detection results of the second boundary at the detection positions; and detect an inclination of the object in the image information from detection results of the first boundary, the second boundary, and the boundary group.Type: GrantFiled: January 30, 2020Date of Patent: August 24, 2021Assignee: RICOH COMPANY, LTD.Inventors: Yuuki Nakada, Hajime Tsukahara, Hiroki Shirado, Ayumu Hashimoto, Tomohiko Ono, Tatsuya Ozaki, Hiroshi Kubo, Yoshiaki Nagao, Kimiharu Yanagisawa, Masahiro Itoh
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Patent number: 10951791Abstract: An image processing apparatus includes circuitry to: obtain a read image read from an image of a document output from an image reading device; detect an edge between a background area and a document area in the read image; sample a detection result of the edge at each first interval in a first direction to extract a first boundary point group including a plurality of boundary points; sample the detection result of the edge at each second interval in the first direction to extract a second boundary point group including a plurality of boundary points; determine a noise removal condition based on the first boundary point group; remove, from the second boundary point group, a boundary point satisfying the noise removal condition as noise; and calculate a linear equation approximating the second boundary point group from which the noise is removed.Type: GrantFiled: February 25, 2020Date of Patent: March 16, 2021Assignee: Ricoh Company, Ltd.Inventors: Ayumu Hashimoto, Hajime Tsukahara, Hiroki Shirado, Yuuki Nakada, Tomohiko Ono, Tatsuya Ozaki, Hiroshi Kubo, Kimiharu Yanagisawa, Yoshiaki Nagao, Masahiro Itoh
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Publication number: 20200336615Abstract: An edge detecting device includes processing circuitry. The processing circuitry is configured to acquire first color information and second color information in an image including a document region and a background region outside the document region. The first color information is color information of the background region and the second color information is color information of the document region. The processing circuitry is configured to detect a boundary between the background region and the document region from a change in color information between the first color information and the second color information.Type: ApplicationFiled: April 7, 2020Publication date: October 22, 2020Inventors: Tomohiko ONO, Hajime TSUKAHARA, Hiroki SHIRADO, Ayumu HASHIMOTO, Yuuki NAKADA, Tatsuya OZAKI, Hiroshi KUBO, Yoshiaki NAGAO, Kimiharu YANAGISAWA, Masahiro ITOH
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Publication number: 20200296255Abstract: An image processing apparatus includes circuitry to: obtain a read image read from an image of a document output from an image reading device; detect an edge between a background area and a document area in the read image; sample a detection result of the edge at each first interval in a first direction to extract a first boundary point group including a plurality of boundary points; sample the detection result of the edge at each second interval in the first direction to extract a second boundary point group including a plurality of boundary points; determine a noise removal condition based on the first boundary point group; remove, from the second boundary point group, a boundary point satisfying the noise removal condition as noise; and calculate a linear equation approximating the second boundary point group from which the noise is removed.Type: ApplicationFiled: February 25, 2020Publication date: September 17, 2020Applicant: Ricoh Company, Ltd.Inventors: AYUMU HASHIMOTO, HAJIME TSUKAHARA, HIROKI SHIRADO, YUUKI NAKADA, TOMOHIKO ONO, TATSUYA OZAKI, HIROSHI KUBO, KIMIHARU YANAGISAWA, YOSHIAKI NAGAO, MASAHIRO ITOH
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Publication number: 20200252513Abstract: An inclination detecting device includes processing circuitry. The processing circuitry is configured to detect, in image information that is an image of an object imaged by an imaging device at an imaging position where a background member forms a background, a first boundary between the background member and a shadow of the object at detection positions in at least one of main-scanning and sub-scanning directions on an outline of the object; detect a second boundary between the object and the shadow of the object at detection positions in at least one of the main-scanning and sub-scanning directions on the outline of the object in the image information; detect a boundary group including detection results of the second boundary at the detection positions; and detect an inclination of the object in the image information from detection results of the first boundary, the second boundary, and the boundary group.Type: ApplicationFiled: January 30, 2020Publication date: August 6, 2020Inventors: Yuuki NAKADA, Hajime TSUKAHARA, Hiroki SHIRADO, Ayumu HASHIMOTO, Tomohiko ONO, Tatsuya OZAKI, Hiroshi KUBO, Yoshiaki NAGAO, Kimiharu YANAGISAWA, Masahiro ITOH
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Publication number: 20200244837Abstract: An inclination detecting device includes processing circuitry. The processing circuitry is configured to detect, in image information that is an image of an object imaged by an imaging device at an imaging position where a background member forms a background, a first boundary between the background member and a shadow of the object; detect a second boundary between the object and the shadow of the object in the image information; and detect an inclination of the object in the image information from the first boundary and the second boundary detected by the processing circuitry.Type: ApplicationFiled: January 29, 2020Publication date: July 30, 2020Inventors: Hajime TSUKAHARA, Hiroki SHIRADO, Ayumu HASHIMOTO, Yuuki NAKADA, Tomohiko ONO, Tatsuya OZAKI, Hiroshi KUBO, Yoshiaki NAGAO, Kimiharu YANAGISAWA, Masahiro ITOH
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Publication number: 20200137262Abstract: A sheet reading apparatus includes a sheet table on which a sheet is placed, a conveyor configured to convey the sheet, a reading guide configured to guide the sheet conveyed by the conveyor, and a reading device configured to read a shadow of the sheet conveyed by the conveyor, for detection of an inclination of the sheet. The sheet reading apparatus further includes a transparent member disposed at a position on a reading line of the reading device. The position on the reading line is withdrawn from the sheet and adjacent to the reading guide.Type: ApplicationFiled: October 16, 2019Publication date: April 30, 2020Inventors: Hiroshi KUBO, Kimiharu YANAGISAWA, Hajime TSUKAHARA, Yoshiaki NAGAO, Masahiro ITOH, Tatsuya OZAKI, Tomohiko ONO, Yuuki NAKADA, Hiroki SHIRADO, Ayumu HASHIMOTO
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Patent number: 9457977Abstract: A gear unit 40 includes: a sprocket 32 including pins 31 provided on a periphery thereof and a final gear 42; and one or more transmission gears disposed between a drive motor 33 and the final gear 42. The pins 31 engage with feed holes provided at equal pitches in a carrier tape. A sensor 48 which detects an angle is provided to face a transmission gear, of the one or more transmission gears, of which a rotation ratio to the final gear 42 is 1:N (N is a positive integer).Type: GrantFiled: June 17, 2013Date of Patent: October 4, 2016Assignees: PANASONIC CORPORATION, NIDEC COPAL ELECTRONICS CORPORATIONInventors: Satoshi Kawaguchi, Shigekazu Yoneyama, Tatsuo Yamamura, Kazunori Kanai, Yuuki Nakada, Kiyoshi Tanaka, Toshiaki Numata
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Publication number: 20150305215Abstract: A gear unit 40 includes: a sprocket 32 including pins 31 provided on a periphery thereof and a final gear 42; and one or more transmission gears disposed between a drive motor 33 and the final gear 42. The pins 31 engage with feed holes provided at equal pitches in a carrier tape. A sensor 48 which detects an angle is provided to face a transmission gear, of the one or more transmission gears, of which a rotation ratio to the final gear 42 is 1:N (N is a positive integer).Type: ApplicationFiled: June 17, 2013Publication date: October 22, 2015Inventors: Satoshi KAWAGUCHI, Shigekazu YONEYAMA, Tatsuo YAMAMURA, Kazunori KANAI, Yuuki NAKADA, Kiyoshi TANAKA, Toshiaki NUMATA