Patents by Inventor Atsuyuki Oyamada
Atsuyuki Oyamada 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: 11066263Abstract: A sheet conveying device, which is incorporated in an image forming apparatus, includes a first detector to detect an angle deviation of a recording medium to a sheet conveying direction, a second detector to detect a lateral shift of the recording medium to a width direction, a third detector to detect at least one of the angle deviation and the lateral shift after correction of the angle deviation detected by the first detector and the lateral shift detected by the second detector, and a rotary body to perform a primary movement by (1) rotating in the sheet conveying direction and returning to a reference position and by (2) moving in the width direction and returning to the reference position, and a secondary movement by performing at least one of (1) and (2) after the primary movement.Type: GrantFiled: June 25, 2019Date of Patent: July 20, 2021Assignee: Ricoh Company, Ltd.Inventors: Jun Yamane, Hiromichi Matsuda, Katsuaki Miyawaki, Koichi Kudo, Tetsuo Watanabe, Toshihiro Okamoto, Hideyuki Takayama, Atsuyuki Oyamada
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Publication number: 20190315586Abstract: A sheet conveying device, which is incorporated in an image forming apparatus, includes a first detector to detect an angle deviation of a recording medium to a sheet conveying direction, a second detector to detect a lateral shift of the recording medium to a width direction, a third detector to detect at least one of the angle deviation and the lateral shift after correction of the angle deviation detected by the first detector and the lateral shift detected by the second detector, and a rotary body to perform a primary movement by (1) rotating in the sheet conveying direction and returning to a reference position and by (2) moving in the width direction and returning to the reference position, and a secondary movement by performing at least one of (1) and (2) after the primary movement.Type: ApplicationFiled: June 25, 2019Publication date: October 17, 2019Applicant: Ricoh Company, Ltd.Inventors: Jun YAMANE, Hiromichi MATSUDA, Katsuaki MIYAWAKI, Koichi KUDO, Tetsuo WATANABE, Toshihiro OKAMOTO, Hideyuki TAKAYAMA, Atsuyuki OYAMADA
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Patent number: 10358311Abstract: A sheet conveying device, which is incorporated in an image forming apparatus, includes a first detector to detect an angle deviation of a recording medium to a sheet conveying direction, a second detector to detect a lateral shift of the recording medium to a width direction, a third detector to detect at least one of the angle deviation and the lateral shift after correction of the angle deviation detected by the first detector and the lateral shift detected by the second detector, and a rotary body to perform a primary movement by (1) rotating in the sheet conveying direction and returning to a reference position and by (2) moving in the width direction and returning to the reference position, and a secondary movement by performing at least one of (1) and (2) after the primary movement.Type: GrantFiled: August 21, 2017Date of Patent: July 23, 2019Assignee: Ricoh Company, Ltd.Inventors: Jun Yamane, Hiromichi Matsuda, Katsuaki Miyawaki, Koichi Kudo, Tetsuo Watanabe, Toshihiro Okamoto, Hideyuki Takayama, Atsuyuki Oyamada
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Patent number: 10104252Abstract: An image reading device, which is included in an image forming apparatus and used to perform a method of reading images, includes an image reading body configured to read one of a recording medium and the recording medium together with a background area adjacent to the recording medium, a moving body disposed facing the image reading body, and a reference body as a reference in shading correction. The moving body is configured to hold the recording medium and the reference body in a direction intersecting a sheet conveying direction of the recording medium such that the recording medium and the reference body contact to and separate from the image reading body.Type: GrantFiled: November 21, 2016Date of Patent: October 16, 2018Assignee: Ricoh Company, Ltd.Inventors: Tetsuo Watanabe, Hideyuki Takayama, Katsuaki Miyawaki, Hiromichi Matsuda, Atsuyuki Oyamada, Jun Yamane, Takashi Hashimoto
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Patent number: 9999786Abstract: A radiation emitting apparatus includes a radiation source to generate radiation, a first collimator to define a maximum radiation field of the radiation; a second collimator to regulate the radiation field and direction of irradiation; a swing portion that swings in two directions orthogonal to each other; a displacement detector to detect displacement of the second collimator relative to a reference point; a drive mechanism to drive the swing portion; a control unit to control the drive mechanism; and a storage unit included in the control unit to store one or more parameters related to mechanical movement of the swing portion. The control unit generates feedforward control information based on an inputted target swing angle, a detected displacement, and the one or more parameters stored in the storage unit, and outputs a drive signal containing the feedforward control information to the drive mechanism.Type: GrantFiled: July 14, 2017Date of Patent: June 19, 2018Assignee: ACCUTHERA INC.Inventors: Eiki Yoshimizu, Atsuyuki Oyamada
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Publication number: 20180028839Abstract: A radiation emitting apparatus includes a radiation source to generate radiation, a first collimator to define a maximum radiation field of the radiation; a second collimator to regulate the radiation field and direction of irradiation; a swing portion that swings in two directions orthogonal to each other; a displacement detector to detect displacement of the second collimator relative to a reference point; a drive mechanism to drive the swing portion; a control unit to control the drive mechanism; and a storage unit included in the control unit to store one or more parameters related to mechanical movement of the swing portion. The control unit generates feedforward control information based on an inputted target swing angle, a detected displacement, and the one or more parameters stored in the storage unit, and outputs a drive signal containing the feedforward control information to the drive mechanism.Type: ApplicationFiled: July 14, 2017Publication date: February 1, 2018Applicant: Accuthera Inc.Inventors: Eiki Yoshimizu, Atsuyuki Oyamada
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Publication number: 20170341892Abstract: A sheet conveying device, which is incorporated in an image forming apparatus, includes a first detector to detect an angle deviation of a recording medium to a sheet conveying direction, a second detector to detect a lateral shift of the recording medium to a width direction, a third detector to detect at least one of the angle deviation and the lateral shift after correction of the angle deviation detected by the first detector and the lateral shift detected by the second detector, and a rotary body to perform a primary movement by (1) rotating in the sheet conveying direction and returning to a reference position and by (2) moving in the width direction and returning to the reference position, and a secondary movement by performing at least one of (1) and (2) after the primary movement.Type: ApplicationFiled: August 21, 2017Publication date: November 30, 2017Applicant: Ricoh Company, Ltd.Inventors: Jun Yamane, Hiromichi Matsuda, Katsuaki Miyawaki, Koichi Kudo, Tetsuo Watanabe, Toshihiro Okamoto, Hideyuki Takayama, Atsuyuki Oyamada
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Patent number: 9776819Abstract: A sheet conveying device, which is incorporated in an image forming apparatus, includes a first detector to detect an angle deviation of a recording medium to a sheet conveying direction, a second detector to detect a lateral shift of the recording medium to a width direction, a third detector to detect at least one of the angle deviation and the lateral shift after correction of the angle deviation detected by the first detector and the lateral shift detected by the second detector, and a rotary body to perform a primary movement by (1) rotating in the sheet conveying direction and returning to a reference position and by (2) moving in the width direction and returning to the reference position, and a secondary movement by performing at least one of (1) and (2) after the primary movement.Type: GrantFiled: December 4, 2015Date of Patent: October 3, 2017Assignee: Ricoh Company, Ltd.Inventors: Jun Yamane, Hiromichi Matsuda, Katsuaki Miyawaki, Koichi Kudo, Tetsuo Watanabe, Toshihiro Okamoto, Hideyuki Takayama, Atsuyuki Oyamada
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Publication number: 20170149989Abstract: An image reading device, which is included in an image forming apparatus and used to perform a method of reading images, includes an image reading body configured to read one of a recording medium and the recording medium together with a background area adjacent to the recording medium, a moving body disposed facing the image reading body, and a reference body as a reference in shading correction. The moving body is configured to hold the recording medium and the reference body in a direction intersecting a sheet conveying direction of the recording medium such that the recording medium and the reference body contact to and separate from the image reading body.Type: ApplicationFiled: November 21, 2016Publication date: May 25, 2017Applicant: Ricoh Company, Ltd.Inventors: Tetsuo WATANABE, Hideyuki Takayama, Katsuaki Miyawaki, Hiromichi Matsuda, Atsuyuki Oyamada, Jun Yamane, Takashi Hashimoto
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Publication number: 20160159598Abstract: A sheet conveying device, which is incorporated in an image forming apparatus, includes a first detector to detect an angle deviation of a recording medium to a sheet conveying direction, a second detector to detect a lateral shift of the recording medium to a width direction, a third detector to detect at least one of the angle deviation and the lateral shift after correction of the angle deviation detected by the first detector and the lateral shift detected by the second detector, and a rotary body to perform a primary movement by (1) rotating in the sheet conveying direction and returning to a reference position and by (2) moving in the width direction and returning to the reference position, and a secondary movement by performing at least one of (1) and (2) after the primary movement.Type: ApplicationFiled: December 4, 2015Publication date: June 9, 2016Applicant: Ricoh Company, Ltd.Inventors: Jun YAMANE, Hiromichi Matsuda, Katsuaki Miyawaki, Koichi Kudo, Tetsuo Watanabe, Toshihiro Okamoto, Hideyuki Takayama, Atsuyuki Oyamada
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Patent number: 9036248Abstract: A terahertz light generation device 1 comprises a resonator structure 12 for intensifying incident light and outputting the intensified light and laser oscillation units 10, 11 for feeding the incident light into the resonator structure 12. The incident light comprises first and second incident light components having polarization states different from each other and frequencies different from each other. The laser oscillation units 10, 11 feed the resonator structure 12 with the first and second incident light components at an angle inclined from a principal surface in the resonator structure 12. The resonator structure 12 outputs light having a frequency corresponding to the difference between the respective frequencies of the first and second incident light components.Type: GrantFiled: December 8, 2011Date of Patent: May 19, 2015Assignees: Osaka Prefecture University Public Corporation, Sumitomo Electric Industries, Ltd.Inventors: Hajime Ishiahara, Atsuyuki Oyamada, Satoshi Kuzuhara, Hisanobu Kitaguchi, Keiji Ebata
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Publication number: 20130293945Abstract: A terahertz light generation device 1 comprises a resonator structure 12 for intensifying incident light and outputting the intensified light and laser oscillation units 10, 11 for feeding the incident light into the resonator structure 12. The incident light comprises first and second incident light components having polarization states different from each other and frequencies different from each other. The laser oscillation units 10, 11 feed the resonator structure 12 with the first and second incident light components at an angle inclined from a principal surface in the resonator structure 12. The resonator structure 12 outputs light having a frequency corresponding to the difference between the respective frequencies of the first and second incident light components.Type: ApplicationFiled: December 8, 2011Publication date: November 7, 2013Applicants: SUMITOMO ELECTRIC INDUSTRIES, LTD., OSAKA PREFECTURE UNIVERSITY PUBLIC CORPORATIONInventors: Hajime Ishihara, Atsuyuki Oyamada, Satoshi Kuzuhara, Hisanobu Kitaguchi, Keiji Ebata