Patents by Inventor Takuro MURATA

Takuro MURATA 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).

  • Patent number: 11884504
    Abstract: A sheet conveying device includes a separation member, a second conveyance member, a third conveyance member, and a first drive control portion. The separation member separates a sheet in contact with a first conveyance member from another at a first position where the first conveyance member comes into contact with the sheet. The second and third conveyance members are respectively downstream of the first and second positions. The first drive control portion stops driving the first conveyance member (1) after the leading edge of the sheet reaches the second position and before the trailing edge of the sheet passes through the first position when the sheet length is not exceeding a specific distance based on a distance between the first and third positions and (2) after the leading edge reaches the third position and before the trailing edge passes through the first position when the length exceeds the specific distance.
    Type: Grant
    Filed: December 6, 2021
    Date of Patent: January 30, 2024
    Assignee: KYOCERA Document Solutions Inc.
    Inventor: Takuro Murata
  • Publication number: 20230406658
    Abstract: An image reading apparatus includes a document tray, a common transport route, a curved transport route, a linear transport route, a switching device, a document transport device, a first image sensor, a second image sensor, a trailing edge detector, a multi feed detector, a leading edge detector, and a controller. The controller determines a length of the document in the transport direction, on a basis of a time point that the leading edge detector has detected the leading edge of the document, a time point that the trailing edge detector has detected the trailing edge of the document, and a time point that a detection status of the multi feed detector has been switched to a non-detection state, and guides the document to the curved transport route or the linear transport route from the common transport route, according to the length of the document, by controlling the switching device.
    Type: Application
    Filed: June 14, 2023
    Publication date: December 21, 2023
    Applicant: KYOCERA Document Solutions Inc.
    Inventors: Takuro MURATA, Masayoshi TAKAHASHI, Masahiro NAKAO, Taro KURAHASHI, Shunsuke SASAKI, Risa FUKUUCHI
  • Publication number: 20230412744
    Abstract: An image reading device includes a document tray, a linear conveyance path, a curved conveyance path, a document conveyance device, a scanning device, a length detecting device, an operation device, and a controller. A plurality of conveyance rollers are disposed at a predetermined first interval in the linear conveyance path. In the curved conveyance path, a plurality of conveyance rollers are disposed at a predetermined second interval longer than the first interval. When accepting through the operation device an instruction for conveying an original document through the curved conveyance path, the controller allows conveyance of the original document through the curved conveyance path when a length of the original document detected by the length detecting device is not shorter than the second interval or disallows conveyance of the original document through the curved conveyance path when the detected length of the original document is shorter than the second interval.
    Type: Application
    Filed: June 14, 2023
    Publication date: December 21, 2023
    Applicant: KYOCERA Document Solutions Inc.
    Inventors: Risa FUKUUCHI, Masayoshi TAKAHASHI, Takuro MURATA, Masahiro NAKAO, Taro KURAHASHI, Shunsuke SASAKI
  • Patent number: 11472651
    Abstract: A document conveying device includes a document tray, a first rotary member, a first motor, a second rotary member, a second motor, a document feed sensor, and a controller. The controller counts a counted time from the time point that the first motor starts to rotate until the leading end of a document reaches the document feed sensor. When the time resulting from subtracting the counted time from a required sheet-to-sheet time interval is longer than the required speed change time, the controller performs deceleration and post-deceleration acceleration for the first motor. The required speed change time is the time required for speed change from the first rotation speed to the second rotation speed.
    Type: Grant
    Filed: May 5, 2021
    Date of Patent: October 18, 2022
    Assignee: KYOCERA DOCUMENT SOLUTIONS INC.
    Inventor: Takuro Murata
  • Patent number: 11368594
    Abstract: Conveyance modes include a registration mode accompanied with skew correction and a registrationless mode unaccompanied with skew correction. When a jam occurs, the controller interrupts a job, and invokes blank-feed processing starting from a state with all sheets re-set. On invoking blank-feed processing, the controller checks the conveyance mode and recognizes the number of jams. If the conveyance mode is the registration mode and in addition the number of jams has not reached a threshold number of jams, the controller invokes blank-feed processing in the registrationless mode.
    Type: Grant
    Filed: September 7, 2021
    Date of Patent: June 21, 2022
    Assignee: KYOCERA Document Solutions Inc.
    Inventors: Shota Urase, Ryota Maeda, Taro Kurahashi, Koji Fujii, Masahiro Nakao, Takuro Murata
  • Publication number: 20220185607
    Abstract: A sheet conveying device includes a separation member, a second conveyance member, a third conveyance member, and a first drive control portion. The separation member separates a sheet in contact with a first conveyance member from another at a first position where the first conveyance member comes into contact with the sheet. The second and third conveyance members are respectively downstream of the first and second positions. The first drive control portion stops driving the first conveyance member (1) after the leading edge of the sheet reaches the second position and before the trailing edge of the sheet passes through the first position when the sheet length is not exceeding a specific distance based on a distance between the first and third positions and (2) after the leading edge reaches the third position and before the trailing edge passes through the first position when the length exceeds the specific distance.
    Type: Application
    Filed: December 6, 2021
    Publication date: June 16, 2022
    Inventor: Takuro Murata
  • Publication number: 20220086295
    Abstract: Conveyance modes include a registration mode accompanied with skew correction and a registrationless mode unaccompanied with skew correction. When a jam occurs, the controller interrupts a job, and invokes blank-feed processing starting from a state with all sheets re-set. On invoking blank-feed processing, the controller checks the conveyance mode and recognizes the number of jams. If the conveyance mode is the registration mode and in addition the number of jams has not reached a threshold number of jams, the controller invokes blank-feed processing in the registrationless mode.
    Type: Application
    Filed: September 7, 2021
    Publication date: March 17, 2022
    Applicant: KYOCERA Document Solutions Inc.
    Inventors: Shota URASE, Ryota MAEDA, Taro KURAHASHI, Koji FUJII, Masahiro NAKAO, Takuro MURATA
  • Publication number: 20210347590
    Abstract: A document conveying device includes a document tray, a first rotary member, a first motor, a second rotary member, a second motor, a document feed sensor, and a controller. The controller counts a counted time from the time point that the first motor starts to rotate until the leading end of a document reaches the document feed sensor. When the time resulting from subtracting the counted time from a required sheet-to-sheet time interval is longer than the required speed change time, the controller performs deceleration and post-deceleration acceleration for the first motor. The required speed change time is the time required for speed change from the first rotation speed to the second rotation speed.
    Type: Application
    Filed: May 5, 2021
    Publication date: November 11, 2021
    Applicant: KYOCERA Document Solutions Inc.
    Inventor: Takuro MURATA
  • Patent number: 10895482
    Abstract: To provide an MFC capable of improving an S/N ratio of a sensor signal even when a pressure difference between both sides of the MFC is small and a flow rate in the sensor flow path is low. Provided is a mass flow controller including a fluid flow path that allows a fluid to pass therethrough, a plurality of flow sensor units that measure a mass flow rate of the fluid, an adjusting valve that adjusts a flow rate of the fluid passing through the fluid flow path, and a control unit that controls a degree of open of the adjusting valve. The flow sensor units are each a thermal flow sensor unit. The control unit calculates a mass flow rate from an added output signal obtained by adding the output signals of the plurality of flow sensor units, and controls the degree of open of the adjusting valve.
    Type: Grant
    Filed: December 23, 2019
    Date of Patent: January 19, 2021
    Assignee: FUJIKIN INCORPORATED
    Inventors: Takuro Murata, Takeshi Nakamura
  • Publication number: 20200209033
    Abstract: To provide an MFC capable of improving an S/N ratio of a sensor signal even when a pressure difference between both sides of the MFC is small and a flow rate in the sensor flow path is low. Provided is a mass flow controller including a fluid flow path that allows a fluid to pass therethrough, a plurality of flow sensor units that measure a mass flow rate of the fluid passing through the fluid, an adjusting valve that adjusts a flow rate of the fluid passing through the fluid flow path, and a control unit that controls a degree of open of the adjusting valve. The flow sensor units are each a thermal flow sensor unit. The control unit calculates a mass flow rate from an added output signal obtained by adding the output signals of the plurality of flow sensor units, and controls the degree of open of the adjusting valve.
    Type: Application
    Filed: December 23, 2019
    Publication date: July 2, 2020
    Applicant: FUJIKIN INCORPORATED
    Inventors: Takuro MURATA, Takeshi NAKAMURA
  • Patent number: 9848092
    Abstract: An image reading device reads an image of an original document and includes a conveyance roller, an image reading section, a first determination section, a second determination section, and a conveyance stopping section. The conveyance roller conveys the original document. The image reading section reads the image of the original document. The first determination section determines whether or not the original document has a punched hole based on the image read by the image reading section. The second determination section determines, upon determination that the original document has the punched hole, whether or not the punched hole is to travel on an edge of the conveyance roller. The conveyance stopping section stops conveyance of the original document upon determination that the punched hole is to travel on the edge of the conveyance roller.
    Type: Grant
    Filed: June 3, 2016
    Date of Patent: December 19, 2017
    Assignee: KYOCERA Document Solutions Inc.
    Inventors: Takuro Murata, Shinya Matsui
  • Patent number: 9813573
    Abstract: A reading device includes a conveyance control section for controlling document conveyance. In a case of double-sided reading of a document and with a cutout document mode applied, the conveyance control section stops a pair of reverse-rotation rollers at a time point when the document has been conveyed by a distance resulting from adding an additional distance, which is predetermined or determined based on a recognized cutout width in the document conveyance direction, to a reference distance since a time point of passage of a rear end of a document-detecting detection part, and thereafter start reverse rotation of the pair of reverse-rotation rollers.
    Type: Grant
    Filed: September 16, 2016
    Date of Patent: November 7, 2017
    Assignee: KYOCERA Document Solutions Inc.
    Inventor: Takuro Murata
  • Patent number: 9670019
    Abstract: A paper feed device includes a paper tray, a set-state sensor, a paper feed unit, and a control unit. The control unit checks an output from the set-state sensor each time before the start of the intermittent paper feed. In the case where no paper feed is detected even after the prescribed number of times of the intermittent paper feed, the control unit determines that a non-feed jam has occurred. In the case where it is detected that there is no paper on the paper tray before the number of repetition of the intermittent paper feed reaches the prescribed number of times, the control unit causes the paper feed unit to terminate the retry processing and determines that, with no paper on the paper tray, it is not the non-feed jam.
    Type: Grant
    Filed: June 15, 2015
    Date of Patent: June 6, 2017
    Assignee: KYOCERA DOCUMENT SOLUTIONS INC.
    Inventor: Takuro Murata
  • Publication number: 20170094088
    Abstract: A reading device includes a conveyance control section for controlling document conveyance. In a case of double-sided reading of a document and with a cutout document mode applied, the conveyance control section stops a pair of reverse-rotation rollers at a time point when the document has been conveyed to a distance resulting from adding an additional distance, which is predetermined or determined based on a recognized cutout width in the document conveyance direction, to a reference distance since a time point of passage of a rear end of a document-detecting detection part, and thereafter start reverse rotation of the pair of reverse-rotation rollers.
    Type: Application
    Filed: September 16, 2016
    Publication date: March 30, 2017
    Applicant: KYOCERA Document Solutions Inc.
    Inventor: Takuro MURATA
  • Publication number: 20160366287
    Abstract: An image reading device reads an image of an original document and includes a conveyance roller, an image reading section, a first determination section, a second determination section, and a conveyance stopping section. The conveyance roller conveys the original document. The image reading section reads the image of the original document. The first determination section determines whether or not the original document has a punched hole based on the image read by the image reading section. The second determination section determines, upon determination that the original document has the punched hole, whether or not the punched hole is to travel on an edge of the conveyance roller. The conveyance stopping section stops conveyance of the original document upon determination that the punched hole is to travel on the edge of the conveyance roller.
    Type: Application
    Filed: June 3, 2016
    Publication date: December 15, 2016
    Applicant: KYOCERA Document Solutions Inc.
    Inventors: Takuro MURATA, Shinya MATSUI
  • Patent number: 9221637
    Abstract: A sheet conveyance mechanism in the present disclosure has a feeding portion, a pair of registration rollers, a first sensor, a second sensor, and a conveyance control portion. The feeding portion has a drive roller. The registration rollers are disposed in a downstream side of the feeding portion. The first and second sensors detect presence of a sheet. If after a sheet is detected by the first sensor, the sheet is not detected by the second sensor by a time when a first period elapses, the conveyance control portion starts a slowdown of a rotation speed of the drive roller. If the sheet is detected by the second sensor by a time when a second period elapses after the slowdown of the rotation speed of the drive roller starts, the conveyance control portion returns the rotation speed of the drive roller to a rotation speed before the slowdown.
    Type: Grant
    Filed: December 23, 2014
    Date of Patent: December 29, 2015
    Assignee: KYOCERA Document Solutions Inc.
    Inventors: Takuro Murata, Masayuki Kakuta
  • Publication number: 20150368056
    Abstract: A paper feed device includes a paper tray, a set-state sensor, a paper feed unit, and a control unit. The control unit checks an output from the set-state sensor each time before the start of the intermittent paper feed. In the case where no paper feed is detected even after the prescribed number of times of the intermittent paper feed, the control unit determines that a non-feed jam has occurred. In the case where it is detected that there is no paper on the paper tray before the number of repetition of the intermittent paper feed reaches the prescribed number of times, the control unit causes the paper feed unit to terminate the retry processing and determines that, with no paper on the paper tray, it is not the non-feed jam.
    Type: Application
    Filed: June 15, 2015
    Publication date: December 24, 2015
    Inventor: Takuro Murata
  • Publication number: 20150175369
    Abstract: A sheet conveyance mechanism in the present disclosure has a feeding portion, a pair of registration rollers, a first sensor, a second sensor, and a conveyance control portion. The feeding portion has a drive roller. The registration rollers are disposed in a downstream side of the feeding portion. The first and second sensors detect presence of a sheet. If after a sheet is detected by the first sensor, the sheet is not detected by the second sensor by a time when a first period elapses, the conveyance control portion starts a slowdown of a rotation speed of the drive roller. If the sheet is detected by the second sensor by a time when a second period elapses after the slowdown of the rotation speed of the drive roller starts, the conveyance control portion returns the rotation speed of the drive roller to a rotation speed before the slowdown.
    Type: Application
    Filed: December 23, 2014
    Publication date: June 25, 2015
    Applicant: KYOCERA Document Solutions Inc.
    Inventors: Takuro MURATA, Masayuki KAKUTA
  • Patent number: 9022378
    Abstract: In a sheet conveyance device, if a sheet has not been detected at a second position when a predetermined time has elapsed since the sheet has been detected at a first position, a separating portion switches operation thereof from a separating operation to a non-separating operation of conveying the sheet from upstream to downstream in a sheet conveyance path, and a sheet feed portion continues a feeding operation. If the sheet has not been detected at the second position by the time a predetermined time has elapsed since the separating portion has started the non-separating operation, the separating portion and the sheet feed portion stop driving, and if the sheet has been detected at the second position by the time, the separating portion switches operation thereof from the non-separating operation to the separating operation, and the sheet feed portion continues the feeding operation.
    Type: Grant
    Filed: January 21, 2014
    Date of Patent: May 5, 2015
    Assignee: KYOCERA Document Solutions Inc.
    Inventors: Masayuki Kakuta, Yuki Tojo, Takuro Murata, Shinji Akamatsu
  • Patent number: 8882107
    Abstract: A sheet conveyance device includes a paper feed section, a separation roller, a registration roller pair arranged downstream of the paper feed section, a conveyance roller pair arranged downstream of the registration roller pair, a multi feed sensor arranged between the paper feed section and the registration roller pair, and a document conveyance controller. When an original document arrives at the conveyance roller pair, the document conveyance controller suspends driving of the paper feed section and starts multi feed determination.
    Type: Grant
    Filed: October 11, 2013
    Date of Patent: November 11, 2014
    Assignee: KYOCERA Document Solutions Inc.
    Inventors: Yuki Tojo, Masayuki Kakuta, Takuro Murata, Shinji Akamatsu