Patents by Inventor Toshiyuki HORIKAWA
Toshiyuki HORIKAWA 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: 20240079176Abstract: A coil device includes: a bobbin having a winding core portion with a hollow cylindrical shape; a core at least partially disposed inside the winding core portion; a wire having a coil portion wound around the winding core portion and a lead portion having a wire connection portion led out from the coil portion to extend substantially parallel to a winding axis O of the coil portion; and a terminal portion having a connection portion connected to the wire at the wire connection portion. A connection portion inner end, which is a position closest to the winding axis in an X-axis direction perpendicular to the winding axis O, of contact portions of the wire connection portion in the connection portion is disposed closer to the winding axis O in the X-axis direction than a first outer end portion located at a position farthest from the winding axis O in the X-axis direction in the bobbin.Type: ApplicationFiled: August 28, 2023Publication date: March 7, 2024Applicant: TDK CORPORATIONInventors: Toshiyuki HORIKAWA, Shinji HIGA
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Publication number: 20230187124Abstract: A coil device including a bobbin, a first wire having a first coil part wound around the bobbin, a second wire having a second coil part wound around the bobbin, and cores and installed to the bobbin. Main inner leg sections and of the cores and are arranged at the inside of the first coil part and the second coil part. First sub-inner leg sections and of the cores and are arranged at the inside of the first coil part and an outside of the second coil part. Second sub-inner leg sections and of the cores and are arranged at the inside of the second coil part and at an outside of the first coil part.Type: ApplicationFiled: December 8, 2022Publication date: June 15, 2023Applicant: TDK CORPORATIONInventors: Kiho HWANG, Satoshi SHINBO, Toshiyuki HORIKAWA
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Publication number: 20210249180Abstract: A coil device includes a bobbin, a terminal, and a terminal block. The bobbin includes a winding portion for winding a wire around an outer circumference of the winding portion. The terminal is connectable with an end of the wire. The terminal block holds the terminal. The terminal is movable both in a first axis and a second axis of the bobbin.Type: ApplicationFiled: November 5, 2020Publication date: August 12, 2021Applicant: TDK CORPORATIONInventors: Toshiyuki HORIKAWA, Masaaki IWAKURA, Masaru KUMAGAI, Shoichi SASAKI
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Patent number: 10507995Abstract: A sheet conveying device includes a separator to separate a sheet from sheets. The separator includes a separation conveyor; a separation resistance member to press against the separation conveyor via the sheet; a resistance-member holder; a biasing member to contact and bias the resistance-member holder to press the separation resistance member toward the separation conveyor, the resistance-member holder to rotate about a resistance-member rotary shaft to separate from the biasing member in detaching from an apparatus body; and a biasing-member holder configured to rotate about a biasing-member rotary shaft to more incline the biasing member in a state, in which the biasing member is spaced apart from the resistance-member holder, in a moving direction of the resistance-member holder to detach from the apparatus body than the biasing member in a biasing state in which the biasing member biases the resistance-member holder in contact with the resistance-member holder.Type: GrantFiled: August 10, 2018Date of Patent: December 17, 2019Assignee: RICOH COMPANY, LTD.Inventors: Munekazu Hirata, Satoshi Narai, Yasunobu Youda, Tatsuaki Nagano, Takayuki Andoh, Daisuke Imaki, Tomoya Fujii, Toshiyuki Horikawa, Koji Hatayama, Kaoru Tada, Naoto Kitamura
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Patent number: 10491768Abstract: An image reading device includes a plurality of conveyance rollers to convey a sheet, a motor to drive the plurality of conveyance rollers, an image reading unit to read an image of the sheet, a control device to perform a stop control that stops the sheet in a course of a conveyance path, and a clutch to transmit a driving force of the motor. A first conveyance roller group includes at least one of the plurality of conveyance rollers upstream from a leading end of the sheet stopped by the stop control in a conveyance direction, to which the driving force is transmitted via the clutch. A second conveyance roller group includes at least one of the plurality of conveyance rollers downstream from the leading end of the sheet stopped by the stop control in the conveyance direction, to which the driving force is transmitted without the clutch.Type: GrantFiled: August 21, 2018Date of Patent: November 26, 2019Assignee: Ricoh Company, Ltd.Inventors: Takayuki Andoh, Yasunobu Youda, Tatsuaki Nagano, Daisuke Imaki, Satoshi Narai, Tomoya Fujii, Toshiyuki Horikawa, Koji Hatayama, Kaoru Tada, Munekazu Hirata, Naoto Kitamura
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Patent number: 10412246Abstract: An image-reading unit includes an original document conveyor that includes a first original document tray to hold an original document to be read, a first original document feeding port to feed the original document placed on the first original document tray, and an original document conveying path to convey the original document from the first original document feeding port to an original document discharging port. The original document conveyor further includes an openable second original document tray attached near an intermediate portion of the original document conveying path to hold an original document when opened, and a second original document feeding port to feed the original document on the second original document tray. The image-reading unit further includes an image reader to read an image of the original document being conveyed along the original document conveying path.Type: GrantFiled: June 14, 2018Date of Patent: September 10, 2019Assignee: Ricoh Company, Ltd.Inventors: Takuji Kawai, Yasunobu Youda, Yohei Osanai, Tatsuaki Nagano, Satoshi Narai, Toshiyuki Horikawa, Daisuke Imaki, Takayuki Andoh, Susumu Miyazaki, Tetsuo Inui, Yuki Fujii, Koichi Ono, Takeshi Shikama, Shingo Shiramura, Hideo Tanaka
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Patent number: 10341516Abstract: A rotation drive device includes a driven rotation member, a driving rotation member, a rotation relay member, a shaft, and a holder. The rotation relay member transmits only a unidirectional rotational driving force from the driving rotation member to the driven rotation member. The rotation relay member includes a housing and a cylindrical one-way clutch. A contact portion between the driving rotation member and the shaft is configured to rotate the driving rotation member and the shaft to transmit the driving force to an inner peripheral side of the cylindrical one-way clutch via the shaft. The driving rotation member includes a boss projected toward the holder and rotatably held in the holder. A portion of the shaft to support the driving rotation member and an inner wall surface of a through hole of the driving rotation member are shaped to rotate the shaft and the driving rotation member. together.Type: GrantFiled: March 13, 2018Date of Patent: July 2, 2019Assignee: RICOH COMPANY, LTD.Inventors: Daisuke Imaki, Yohei Osanai, Genta Hagiwara, Masatoshi Ishida, Tatsuaki Nagano, Satoshi Narai, Toshiyuki Horikawa, Yasunobu Youda, Takayuki Andoh, Kaoru Tada
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Publication number: 20190068815Abstract: An image reading device includes a plurality of conveyance rollers to convey a sheet, a motor to drive the plurality of conveyance rollers, an image reading unit to read an image of the sheet, a control device to perform a stop control that stops the sheet in a course of a conveyance path, and a clutch to transmit a driving force of the motor. A first conveyance roller group includes at least one of the plurality of conveyance rollers upstream from a leading end of the sheet stopped by the stop control in a conveyance direction, to which the driving force is transmitted via the clutch. A second conveyance roller group includes at least one of the plurality of conveyance rollers downstream from the leading end of the sheet stopped by the stop control in the conveyance direction, to which the driving force is transmitted without the clutch.Type: ApplicationFiled: August 21, 2018Publication date: February 28, 2019Applicant: Ricoh Company, Ltd.Inventors: Takayuki ANDOH, Yasunobu YOUDA, Tatsuaki NAGANO, Daisuke IMAKI, Satoshi NARAI, Tomoya FUJII, Toshiyuki HORIKAWA, Koji HATAYAMA, Kaoru TADA, Munekazu HIRATA, Naoto KITAMURA
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Publication number: 20190047809Abstract: A sheet conveying device includes a separator to separate a sheet from sheets. The separator includes a separation conveyor; a separation resistance member to press against the separation conveyor via the sheet; a resistance-member holder; a biasing member to contact and bias the resistance-member holder to press the separation resistance member toward the separation conveyor, the resistance-member holder to rotate about a resistance-member rotary shaft to separate from the biasing member in detaching from an apparatus body; and a biasing-member holder configured to rotate about a biasing-member rotary shaft to more incline the biasing member in a state, in which the biasing member is spaced apart from the resistance-member holder, in a moving direction of the resistance-member holder to detach from the apparatus body than the biasing member in a biasing state in which the biasing member biases the resistance-member holder in contact with the resistance-member holder.Type: ApplicationFiled: August 10, 2018Publication date: February 14, 2019Applicant: Ricoh Company, Ltd.Inventors: Munekazu HIRATA, Satoshi NARAI, Yasunobu YOUDA, Tatsuaki NAGANO, Takayuki ANDOH, Daisuke IMAKI, Tomoya FUJII, Toshiyuki HORIKAWA, Koji HATAYAMA, Kaoru TADA, Naoto KITAMURA
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Publication number: 20190052767Abstract: A reading device includes a feeder, a reading unit, and circuitry. The feeder feeds a document. The reading unit reads the document fed by the feeder. The circuitry acquires image data of the document read by the reading unit, in a mode selected in accordance with a predetermined selection condition from a plurality of modes that includes a first mode for acquiring image data including a document area of the document and an outside area other than the document area and a second mode for acquiring image data of an area not including the outside area.Type: ApplicationFiled: August 6, 2018Publication date: February 14, 2019Inventors: Tatsuaki NAGANO, Koji HATAYAMA, Satoshi NARAI, Daisuke IMAKI, Toshiyuki HORIKAWA, Kaoru TADA, Takayuki ANDOH, Yohei OSANAI, Genta HAGIWARA, Yasunobu YOUDA
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Patent number: 10200564Abstract: An image reading device includes: a reading unit; a first detecting unit that detects a position of the reading unit in the sub-scanning direction; a second detecting unit that detects a position of the reading unit in the sub-scanning direction; and a calculating unit that calculates a skew quantity and a skew direction of the reading unit, based on a difference, introduced by the skew, between a travel distance by which the reading unit has travelled from a measurement reference position located on an upstream side of the first detecting unit and the second detecting unit in a moving direction to a point where the reading unit is detected by the first detecting unit, and a travel distance by which the reading unit has travelled from the measurement reference position to a point where the reading unit is detected by the second detecting unit.Type: GrantFiled: January 4, 2017Date of Patent: February 5, 2019Assignee: RICOH COMPANY, LTD.Inventors: Yuki Fujii, Yasunobu Youda, Yohei Osanai, Tatsuaki Nagano, Satoshi Narai, Toshiyuki Horikawa, Takuji Kawai, Daisuke Imaki, Takayuki Andoh, Susumu Miyazaki, Tetsuo Inui, Koichi Ono, Takeshi Shikama, Shingo Shiramura, Hideo Tanaka
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Patent number: 10131512Abstract: A document feeder, which may be incorporated in an image forming apparatus, includes a sheet conveying guide, at least one recess, a frame, and at least one protrusion. The sheet conveying guide is disposed facing an exposure glass on an apparatus body and guides an original document passing over the exposure glass when the document feeder is closed to the apparatus body. The recess is disposed on the apparatus body at both ends of the exposure glass in a lateral direction orthogonal to a document conveying direction. The frame is openably closable about one end side of the apparatus body in the lateral direction and vertically movably holds the sheet conveying guide. The protrusion is disposed on the frame facing the recess. The sheet conveying guide and the frame are secured to each other while the recess and the protrusion are engaged with each other in the closed state.Type: GrantFiled: December 20, 2016Date of Patent: November 20, 2018Assignee: RICOH COMPANY, LTD.Inventors: Kaoru Tada, Takayuki Andoh, Yohei Osanai, Tatsuaki Nagano, Koji Hatayama, Munekazu Hirata, Toshiyuki Horikawa
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Patent number: 10108128Abstract: An automatic document feeder, which is included in an image reading device and an image forming apparatus, includes first and second document trays, a document output tray, a document conveying passage, multiple document conveying bodies, a drive source, a detector, and a controller. The multiple document conveying bodies include a document holding and conveying body to convey and hold the original document sheet on the second document tray. On detection of the original document sheet on the second document tray while conveying a different original document sheet from the first document tray, the controller stops feeding the different original document sheet, causes the different original document sheet downstream from the document holding and conveying body in a document conveying direction to be conveyed to the document output tray, and stops the drive source after the different original document has been conveyed to the document output tray.Type: GrantFiled: April 17, 2017Date of Patent: October 23, 2018Assignee: Ricoh Company, Ltd.Inventors: Tatsuaki Nagano, Yasunobu Youda, Satoshi Narai, Yohei Osanai, Toshiyuki Horikawa, Masatoshi Ishida, Takuji Kawai
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Publication number: 20180295247Abstract: An image-reading unit includes an original document conveyor that includes a first original document tray to hold an original document to be read, a first original document feeding port to feed the original document placed on the first original document tray, and an original document conveying path to convey the original document from the first original document feeding port to an original document discharging port. The original document conveyor further includes an openable second original document tray attached near an intermediate portion of the original document conveying path to hold an original document when opened, and a second original document feeding port to feed the original document on the second original document tray. The image-reading unit further includes an image reader to read an image of the original document being conveyed along the original document conveying path.Type: ApplicationFiled: June 14, 2018Publication date: October 11, 2018Applicant: Ricoh Company, Ltd.Inventors: Takuji KAWAI, Yasunobu YOUDA, Yohei OSANAI, Tatsuaki NAGANO, Satoshi NARAI, Toshiyuki HORIKAWA, Daisuke IMAKI, Takayuki ANDOH, Susumu MIYAZAKI, Tetsuo INUI, Yuki FUJII, Koichi ONO, Takeshi SHIKAMA, Shingo SHIRAMURA, Hideo TANAKA
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Publication number: 20180270375Abstract: A rotation drive device includes a driven rotation member, a driving rotation member, a rotation relay member, a shaft, and a holder. The rotation relay member transmits only a unidirectional rotational driving force from the driving rotation member to the driven rotation member. The rotation relay member includes a housing and a cylindrical one-way clutch. A contact portion between the driving rotation member and the shaft is configured to rotate the driving rotation member and the shaft to transmit the driving force to an inner peripheral side of the cylindrical one-way clutch via the shaft. The driving rotation member includes a boss projected toward the holder and rotatably held in the holder. A portion of the shaft to support the driving rotation member and an inner wall surface of a through hole of the driving rotation member are shaped to rotate the shaft and the driving rotation member. together.Type: ApplicationFiled: March 13, 2018Publication date: September 20, 2018Applicant: Ricoh Company, Ltd.Inventors: DAISUKE IMAKI, Yohei OSANAI, Genta HAGIWARA, Masatoshi ISHIDA, Tatsuaki NAGANO, Satoshi NARAI, Toshiyuki HORIKAWA, Yasunobu YOUDA, Takayuki ANDOH, Kaoru TADA
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Patent number: 10044898Abstract: An image reading device, which is included in an image forming apparatus, includes a first transparent body, a second transparent body, a holding body, and a reading body. The second transparent body is disposed separated from and inclined at a predetermined angle to the first transparent body. The holding body holds the first and second transparent bodies. The reading body moves in a sub-scanning direction along the first and second transparent bodies. The holding body includes a flat face and a frame-shaped face. The flat face is contiguous to the first transparent body on a same plane and smoothly connected with the second transparent body. The frame-shaped face projects outwardly beyond the second transparent body facing the reading body. The reading body moves and contacts the first transparent body and the holding body, and moves with a gap relative to the second transparent body.Type: GrantFiled: March 17, 2017Date of Patent: August 7, 2018Assignee: Ricoh Company, Ltd.Inventors: Yohei Osanai, Yasunobu Youda, Masatoshi Ishida, Tatsuaki Nagano, Daisuke Imaki, Satoshi Narai, Toshiyuki Horikawa, Takuji Kawai
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Patent number: 10027831Abstract: An image-reading unit includes an original document conveyor that includes a first original document tray to hold an original document to be read, a first original document feeding port to feed the original document placed on the first original document tray, and an original document conveying path to convey the original document from the first original document feeding port to an original document discharging port. The original document conveyor further includes an openable second original document tray attached near an intermediate portion of the original document conveying path to hold an original document when opened, and a second original document feeding port to feed the original document on the second original document tray. The image-reading unit further includes an image reader to read an image of the original document being conveyed along the original document conveying path.Type: GrantFiled: November 10, 2016Date of Patent: July 17, 2018Assignee: Ricoh Company, Ltd.Inventors: Takuji Kawai, Yasunobu Youda, Yohei Osanai, Tatsuaki Nagano, Satoshi Narai, Toshiyuki Horikawa, Daisuke Imaki, Takayuki Andoh, Susumu Miyazaki, Tetsuo Inui, Yuki Fujii, Koichi Ono, Takeshi Shikama, Shingo Shiramura, Hideo Tanaka
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Patent number: 9988223Abstract: An automatic document feeding device includes a document tray, an ejection tray, and a document takeout port. The document tray is rotatably attached to a rotation fulcrum provided in a body of the automatic document feeder, to load a document. The document tray includes a first positioner and a second positioner. The first positioner is disposed at a front side of the body in a direction perpendicular to a document feed direction. The second positioner is disposed at a depth side of the body in the direction perpendicular to the document feed direction. The first positioner is disposed upstream from the rotation fulcrum in the document feed direction and above the document takeout port in the body. An upper portion and side surfaces of the first positioner in the direction perpendicular to the document feed direction are surrounded by the document tray in a closed state of the document tray.Type: GrantFiled: June 21, 2016Date of Patent: June 5, 2018Assignee: RICOH COMPANY, LTD.Inventors: Munekazu Hirata, Takayuki Andoh, Koji Hatayama, Kaoru Tada, Tatsuaki Nagano, Yasunobu Youda, Toshiyuki Horikawa, Yohei Osanai, Kazushige Kawamura, Takuji Kawai
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Publication number: 20170351209Abstract: An automatic document feeder, which is included in an image reading device and an image forming apparatus, includes first and second document trays, a document output tray, a document conveying passage, multiple document conveying bodies, a drive source, a detector, and a controller. The multiple document conveying bodies include a document holding and conveying body to convey and hold the original document sheet on the second document tray. On detection of the original document sheet on the second document tray while conveying a different original document sheet from the first document tray, the controller stops feeding the different original document sheet, causes the different original document sheet downstream from the document holding and conveying body in a document conveying direction to be conveyed to the document output tray, and stops the drive source after the different original document has been conveyed to the document output tray.Type: ApplicationFiled: April 17, 2017Publication date: December 7, 2017Applicant: Ricoh Company, Ltd.Inventors: Tatsuaki NAGANO, Yasunobu Youda, Satoshi Narai, Yobei Osanai, Toshiyuki Horikawa, Masatoshi Ishida, Takuji Kawai
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Publication number: 20170331970Abstract: An image reading device, which is included in an image forming apparatus, includes a first transparent body, a second transparent body, a holding body, and a reading body. The second transparent body is disposed separated from and inclined at a predetermined angle to the first transparent body. The holding body holds the first and second transparent bodies. The reading body moves in a sub-scanning direction along the first and second transparent bodies. The holding body includes a flat face and a frame-shaped face. The flat face is contiguous to the first transparent body on a same plane and smoothly connected with the second transparent body. The frame-shaped face projects outwardly beyond the second transparent body facing the reading body. The reading body moves and contacts the first transparent body and the holding body, and moves with a gap relative to the second transparent body.Type: ApplicationFiled: March 17, 2017Publication date: November 16, 2017Applicant: Ricoh Company, Ltd.Inventors: Yohei OSANAI, Yasunobu YOUDA, Masatoshi ISHIDA, Tatsuaki NAGANO, Daisuke IMAKI, Satoshi NARAI, Toshiyuki HORIKAWA, Takuji KAWAI