Patents by Inventor Takamasa Matsumoto

Takamasa Matsumoto 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: 12005675
    Abstract: A medium processing apparatus includes a crimper, a liquid applier, a driving source, and a binding load detector. The crimper presses and deforms a part of a medium bundle, which is a plurality of sheet-shaped media bundled, to bind the medium bundle. The liquid applier applies liquid to a position on the media at which binding is to be performed by the crimper. The driving source operates the crimper. The binding load detector detects a load of the crimper during the binding. The liquid applier adjusts an amount of the liquid to be applied to the media in accordance with a magnitude of the load during the binding detected by the binding load detector.
    Type: Grant
    Filed: January 31, 2023
    Date of Patent: June 11, 2024
    Assignee: Ricoh Company, Ltd.
    Inventors: Takamasa Matsumoto, Kei Sasaki, Kazuki Seto, Yasushi Tsuruoka
  • Patent number: 11981529
    Abstract: A medium processing apparatus includes a conveyor, a liquid applier, and a crimper. The conveyor conveys a medium. The liquid applier applies liquid to a part of the medium conveyed by the conveyor. The medium is at least one medium. The crimper presses and deforms a bundle of media including the medium to which the liquid is applied by the liquid applier, to bind the bundle of media. The liquid applier includes a liquid application member and a retained liquid amount detector. The liquid application member applies the liquid to a position to be bound by the crimper on the medium. The retained liquid amount detector detects an amount of the liquid retained by the liquid application member.
    Type: Grant
    Filed: January 11, 2023
    Date of Patent: May 14, 2024
    Assignee: Ricoh Company, Ltd.
    Inventors: Yasushi Tsuruoka, Kei Sasaki, Kazuki Seto, Takamasa Matsumoto
  • Publication number: 20230242369
    Abstract: A medium processing apparatus includes a conveyor, a liquid applier, and a crimper. The conveyor conveys a medium. The liquid applier applies liquid to a part of the medium conveyed by the conveyor. The medium is at least one medium. The crimper presses and deforms a bundle of media including the medium to which the liquid is applied by the liquid applier, to bind the bundle of media. The liquid applier includes a liquid application member and a retained liquid amount detector. The liquid application member applies the liquid to a position to be bound by the crimper on the medium. The retained liquid amount detector detects an amount of the liquid retained by the liquid application member.
    Type: Application
    Filed: January 11, 2023
    Publication date: August 3, 2023
    Applicant: Ricoh Company, Ltd.
    Inventors: Yasushi Tsuruoka, Kei Sasaki, Kazuki Seto, Takamasa Matsumoto
  • Publication number: 20230241860
    Abstract: A medium processing apparatus includes a crimper, a liquid applier, a driving source, and a binding load detector. The crimper presses and deforms a part of a medium bundle, which is a plurality of sheet-shaped media bundled, to bind the medium bundle. The liquid applier applies liquid to a position on the media at which binding is to be performed by the crimper. The driving source operates the crimper. The binding load detector detects a load of the crimper during the binding. The liquid applier adjusts an amount of the liquid to be applied to the media in accordance with a magnitude of the load during the binding detected by the binding load detector.
    Type: Application
    Filed: January 31, 2023
    Publication date: August 3, 2023
    Applicant: Ricoh Company, Ltd.
    Inventors: Takamasa Matsumoto, Kei Sasaki, Kazuki Seto, Yasushi Tsuruoka
  • Patent number: 11414292
    Abstract: A sheet stacker includes a pair of sheet holders, a sheet leading-edge aligner, a sheet stacking member, and control circuitry. A downstream side of the pair of sheet holders in a conveyance direction of a conveyed sheet is lowered along the conveyance direction. Each one of the pair of sheet holders is movable in an orthogonal direction to the conveyance direction. The pair of sheet holders hold both side-end portions of the sheet in the orthogonal direction. The sheet stacking member is disposed below the pair of sheet holders. A downstream side of the sheet stacking member in the conveyance direction is lowered along the conveyance direction. The sheet stacking member stacks the sheet dropped from the pair of sheet holders after a leading edge of the sheet is aligned by the leading-edge aligner. The control circuitry controls operations of the leading-edge aligner and the pair of sheet holders.
    Type: Grant
    Filed: March 25, 2021
    Date of Patent: August 16, 2022
    Assignee: RICOH COMPANY, LTD.
    Inventor: Takamasa Matsumoto
  • Patent number: 11360421
    Abstract: A sheet sorting device includes a plurality of trays, a tray shifter, a tray stop position detector, and circuitry. The plurality of trays is disposed in multiple stages in a vertical direction and configured to stack a sheet. The tray shifter is configured to move the plurality of trays separately in a tray shift direction. The tray stop position detector is configured to detect stop positions of the plurality of trays separately. The circuitry is configured to cause the tray shifter to move the plurality of trays to home positions in an initial operation, at least one tray having a home position opposite to a home position of another tray in the tray shift direction. The circuitry is configured to, while moving the plurality of trays at a same time in the initial operation, cause the tray shifter to move the trays in directions opposite to each other.
    Type: Grant
    Filed: March 19, 2020
    Date of Patent: June 14, 2022
    Assignee: Ricoh Company, Ltd.
    Inventors: Masakazu Fujita, Yasushi Tsuruoka, Takamasa Matsumoto, Hiroaki Utagawa, Ryohsuke Akaishi, Hisayoshi Sugawara
  • Patent number: 11233950
    Abstract: An electronic device includes an open-close detector configured to detect an open-close state indicating whether an optical path open-close device of a film camera is open or closed, a displacement detector configured to detect a displacement of a movable portion of the film camera interlocked with a movement of an operation portion of the film camera, and control circuitry. In response to a detection result of the displacement detector, the control circuitry selects a measurement mode for measuring an open time during which the optical path open-close device is open, from a plurality of operation modes of the electronic device. In the measurement mode, the control circuitry measures the open time based on the open-close state detected by the open-close detector.
    Type: Grant
    Filed: July 31, 2020
    Date of Patent: January 25, 2022
    Assignee: RICOH COMPANY, LTD.
    Inventors: Atsushi Ikeda, Kenji Hayasaka, Takamasa Matsumoto, Youhei Niitsuma, Toshihiro Okamoto, Kenta Takahashi, Yuichi Mikuni
  • Publication number: 20210310446
    Abstract: A boosted engine is provided, which includes a first turbocharger having a first compressor and a first turbine, a second turbocharger having a second compressor and a second turbine, and first and second exhaust emission control devices. The engine has a first exhaust port which opens at a first timing, and a second exhaust port which is in parallel with the first exhaust port and opens at a second timing later than the first timing. The exhaust passage has a first exhaust passage connected to the first exhaust port and a second exhaust passage connected to the second exhaust port. The first turbine and the first exhaust emission control device are disposed in the first exhaust passage in this order from upstream to downstream, and the second exhaust emission control device and the second turbine are disposed in the second exhaust passage in this order from upstream to downstream.
    Type: Application
    Filed: February 25, 2021
    Publication date: October 7, 2021
    Inventors: Takamasa Matsumoto, Hiroki Miyawaki, Naoyuki Yamagata
  • Publication number: 20210309482
    Abstract: A sheet stacker includes a pair of sheet holders, a sheet leading-edge aligner, a sheet stacking member, and control circuitry. A downstream side of the pair of sheet holders in a conveyance direction of a conveyed sheet is lowered along the conveyance direction. Each one of the pair of sheet holders is movable in an orthogonal direction to the conveyance direction. The pair of sheet holders hold both side-end portions of the sheet in the orthogonal direction. The sheet stacking member is disposed below the pair of sheet holders. A downstream side of the sheet stacking member in the conveyance direction is lowered along the conveyance direction. The sheet stacking member stacks the sheet dropped from the pair of sheet holders after a leading edge of the sheet is aligned by the leading-edge aligner. The control circuitry controls operations of the leading-edge aligner and the pair of sheet holders.
    Type: Application
    Filed: March 25, 2021
    Publication date: October 7, 2021
    Applicant: Ricoh Company, Ltd.
    Inventor: Takamasa MATSUMOTO
  • Publication number: 20210262419
    Abstract: An engine with a boosting system is provided, which includes a turbocharger including a compressor provided in an intake passage of the engine and configured to boost intake air to be supplied to the engine, and a turbine provided in an exhaust passage of the engine. The engine includes an electric supercharger provided in the intake passage downstream of the compressor and configured to operate when the engine operates in a low-speed range, an emission control device provided in the exhaust passage upstream of the turbine and configured to purify exhaust gas discharged from the engine, and an EGR system having a passage connecting a part of the intake passage between the compressor and the electric supercharger to a part of the exhaust passage between the emission control device and the turbine, and configured to recirculate a part of the exhaust gas to the intake passage as EGR gas.
    Type: Application
    Filed: January 21, 2021
    Publication date: August 26, 2021
    Inventors: Takamasa Matsumoto, Hiroki Miyawaki, Naoyuki Yamagata
  • Publication number: 20210127047
    Abstract: An electronic device includes an open-close detector configured to detect an open-close state indicating whether an optical path open-close device of a film camera is open or closed, a displacement detector configured to detect a displacement of a movable portion of the film camera interlocked with a movement of an operation portion of the film camera, and control circuitry. In response to a detection result of the displacement detector, the control circuitry selects a measurement mode for measuring an open time during which the optical path open-close device is open, from a plurality of operation modes of the electronic device. In the measurement mode, the control circuitry measures the open time based on the open-close state detected by the open-close detector.
    Type: Application
    Filed: July 31, 2020
    Publication date: April 29, 2021
    Inventors: Atsushi IKEDA, Kenji HAYASAKA, Takamasa MATSUMOTO, Youhei NIITSUMA, Toshihiro OKAMOTO, Kenta TAKAHASHI, Yuichi MIKUNI
  • Publication number: 20200310321
    Abstract: A sheet sorting device includes a plurality of trays, a tray shifter, a tray stop position detector, and circuitry. The plurality of trays is disposed in multiple stages in a vertical direction and configured to stack a sheet. The tray shifter is configured to move the plurality of trays separately in a tray shift direction. The tray stop position detector is configured to detect stop positions of the plurality of trays separately. The circuitry is configured to cause the tray shifter to move the plurality of trays to home positions in an initial operation, at least one tray having a home position opposite to a home position of another tray in the tray shift direction. The circuitry is configured to, while moving the plurality of trays at a same time in the initial operation, cause the tray shifter to move the trays in directions opposite to each other.
    Type: Application
    Filed: March 19, 2020
    Publication date: October 1, 2020
    Applicant: Ricoh Company, Ltd.
    Inventors: Masakazu FUJITA, Yasushi TSURUOKA, Takamasa MATSUMOTO, Hiroaki UTAGAWA, Ryohsuke AKAISHI, Hisayoshi SUGAWARA
  • Patent number: 9604814
    Abstract: According to an embodiment, there is provided a sheet processing apparatus includes a stacking unit that stacks a sheet conveyed thereto; a first alignment unit that aligns the sheet or a bundle of sheets stacked in the stacking unit in a sheet conveying direction; a second alignment unit that aligns the sheet or the bundle of sheets stacked in the stacking unit in a direction orthogonal to the sheet conveying direction; a pressing unit that presses the bundle of sheets at an end portion thereof on a predetermined one side; and a control unit that causes at least one of the first and second alignment units to execute an alignment operation during a press operation of the sheet or the bundle of sheets performed by the pressing unit.
    Type: Grant
    Filed: January 12, 2015
    Date of Patent: March 28, 2017
    Assignee: RICOH COMPANY, LIMITED
    Inventors: Tomohiro Furuhashi, Masahiro Tamura, Shuuya Nagasako, Keisuke Sugiyama, Kazuya Yamamoto, Kyosuke Nakada, Tomomichi Hoshino, Akira Kunieda, Takahiro Watanabe, Takamasa Matsumoto, Junya Suzuki, Youhei Niitsuma, Kazunori Konno, Kiichiro Goto
  • Patent number: 9561927
    Abstract: A sheet discharging device includes a shift tray 202 on which a sheet P1 is stacked, a discharging roller 6 that discharges a sheet P2 onto the shift tray 202, a blowing device 230 that sends air to a lower surface of the sheet P2 discharged by the discharging roller 6, a blocking member 231 that blocks air sent to the lower surface of the sheet P2 from a blowing port 230-2 of the blowing device 230, and a control unit that controls the blocking amount of the blocking member 231. The blocking amount is determined based upon sheet information including sheet-type information, sheet-size information, and sheet-thickness information, for example.
    Type: Grant
    Filed: November 25, 2015
    Date of Patent: February 7, 2017
    Assignee: RICOH COMPANY, LIMITED
    Inventors: Tomomichi Hoshino, Masahiro Tamura, Shuuya Nagasako, Tomohiro Furuhashi, Keisuke Sugiyama, Kyosuke Nakada, Kazuya Yamamoto, Akira Kunieda, Takahiro Watanabe, Junya Suzuki, Kazunori Konno, Youhei Niitsuma, Takamasa Matsumoto, Kiichiro Goto, Kazuhiko Kitano, Takashi Fukumoto, Yasuo Niikura, Satoru Takano, Hidetoshi Kojima, Kei Sasaki, Yasushi Tsuruoka, Shintaro Matsumoto, Ryo Takahashi, Yuuta Mori, Kohjiroh Haga
  • Patent number: 9533852
    Abstract: A sheet ejecting device includes: a sheet ejecting unit configured to eject a sheet; a stacking unit on which the sheet that is ejected by the ejecting unit is stacked; an aligning unit configured to align the sheet in a direction orthogonal to the direction in which the sheet is ejected; and a blowing unit configured to be provided to the aligning unit and blow a wind toward the ejected sheet.
    Type: Grant
    Filed: June 15, 2015
    Date of Patent: January 3, 2017
    Assignee: RICOH COMPANY, LIMITED
    Inventors: Junya Suzuki, Kiichiro Goto, Masahiro Tamura, Shuuya Nagasako, Keisuke Sugiyama, Tomohiro Furuhashi, Kyosuke Nakada, Kazuya Yamamoto, Tomomichi Hoshino, Akira Kunieda, Takahiro Watanabe, Takamasa Matsumoto, Kazunori Konno, Youhei Niitsuma
  • Publication number: 20160185552
    Abstract: A sheet discharging device includes a shift tray 202 on which a sheet P1 is stacked, a discharging roller 6 that discharges a sheet P2 onto the shift tray 202, a blowing device 230 that sends air to a lower surface of the sheet P2 discharged by the discharging roller 6, a blocking member 231 that blocks air sent to the lower surface of the sheet P2 from a blowing port 230-2 of the blowing device 230, and a control unit that controls the blocking amount of the blocking member 231. The blocking amount is determined based upon sheet information including sheet-type information, sheet-size information, and sheet-thickness information, for example.
    Type: Application
    Filed: November 25, 2015
    Publication date: June 30, 2016
    Applicant: Ricoh Company, LIMITED
    Inventors: Tomomichi HOSHINO, Masahiro TAMURA, Shuuya NAGASAKO, Tomohiro FURUHASHI, Keisuke SUGIYAMA, Kyosuke NAKADA, Kazuya YAMAMOTO, Akira KUNIEDA, Takahiro WATANABE, Junya SUZUKI, Kazunori KONNO, Youhei NIITSUMA, Takamasa MATSUMOTO, Kiichiro GOTO, Kazuhiko KITANO, Takashi FUKUMOTO, Yasuo NIIKURA, Satoru TAKANO, Hidetoshi KOJIMA, Kei SASAKI, Yasushi TSURUOKA, Shintaro MATSUMOTO, Ryo TAKAHASHI, Yuuta MORI, Kohjiroh HAGA
  • Patent number: 9260264
    Abstract: A sheet discharging device includes a shift tray 202 on which a sheet P1 is stacked, a discharging roller 6 that discharges a sheet P2 onto the shift tray 202, a blowing device 230 that sends air to a lower surface of the sheet P2 discharged by the discharging roller 6, a blocking member 231 that blocks air sent to the lower surface of the sheet P2 from a blowing port 230-2 of the blowing device 230, and a control unit that controls the blocking amount of the blocking member 231. The blocking amount is determined based upon sheet information including sheet-type information, sheet-size information, and sheet-thickness information, for example.
    Type: Grant
    Filed: March 24, 2014
    Date of Patent: February 16, 2016
    Assignee: RICOH COMPANY, LIMITED
    Inventors: Tomomichi Hoshino, Masahiro Tamura, Shuuya Nagasako, Tomohiro Furuhashi, Keisuke Sugiyama, Kyosuke Nakada, Kazuya Yamamoto, Akira Kunieda, Takahiro Watanabe, Junya Suzuki, Kazunori Konno, Youhei Niitsuma, Takamasa Matsumoto, Kiichiro Goto, Kazuhiko Kitano, Takashi Fukumoto, Yasuo Niikura, Satoru Takano, Hidetoshi Kojima, Kei Sasaki, Yasushi Tsuruoka, Shintaro Matsumoto, Ryo Takahashi, Yuuta Mori, Kohjiroh Haga
  • Patent number: 9255503
    Abstract: An exhaust device includes a plurality of independent exhaust passages connected to an exhaust port of one cylinder or a plurality of cylinders that are non-sequential in exhaust order, and a mixing pipe into which exhaust that has passed through the respective independent exhaust passages flows. The downstream ends of the respective independent exhaust passages are connected in a bundled form to the upstream end of the mixing pipe. A cavity expansion chamber is disposed in an exhaust passage downstream from the mixing pipe. The cavity expansion chamber is disposed in a position (at a distance L2) such that, in the intermediate speed range, a negative pressure wave generated due to an exhaust pressure wave generated by opening an exhaust valve being reflected by the cavity expansion chamber reaches the exhaust port during an overlap period of the exhaust valve and an intake valve of the cylinder.
    Type: Grant
    Filed: November 27, 2012
    Date of Patent: February 9, 2016
    Assignee: Mazda Motor Corporation
    Inventors: Takamasa Matsumoto, Mitsuo Nakamura, Mikihito Fujii, Nobuhiro Soumiyou, Shunki Okazaki, Yoshito Wakabayashi
  • Publication number: 20150353315
    Abstract: A sheet ejecting device includes: a sheet ejecting unit configured to eject a sheet; a stacking unit on which the sheet that is ejected by the ejecting unit is stacked; an aligning unit configured to align the sheet in a direction orthogonal to the direction in which the sheet is ejected; and a blowing unit configured to be provided to the aligning unit and blow a wind toward the ejected sheet.
    Type: Application
    Filed: June 15, 2015
    Publication date: December 10, 2015
    Applicant: Ricoh Company, Limited
    Inventors: Junya SUZUKI, Kiichiro GOTO, Masahiro TAMURA, Shuuya NAGASAKO, Keisuke SUGIYAMA, Tomohiro FURUHASHI, Kyosuke NAKADA, Kazuya YAMAMOTO, Tomomichi HOSHINO, Akira KUNIEDA, Takahiro WATANABE, Takamasa MATSUMOTO, Kazunori KONNO, Youhei NIITSUMA
  • Patent number: 9188095
    Abstract: A multi-cylinder engine intake and exhaust having a plurality of independent exhaust passages each connected to an exhaust port in a respective one of a plurality of cylinders, a collecting pipe connected to downstream ends of the plurality of independent exhaust passages, and a volume-enlarged portion provided downstream with respect to the collecting pipe. Each of at least a downstream portion of each of the plurality of independent exhaust passages and at least an upstream portion of the collecting pipe is formed such that a cross-sectional area thereof gradually decreases toward a downstream direction. The volume-enlarged portion is formed such that a cross-sectional area thereof is relatively increased so as to cause a positive pressure wave of exhaust gas reaching the volume-enlarged portion to be reflected and converted to a negative pressure wave.
    Type: Grant
    Filed: January 10, 2012
    Date of Patent: November 17, 2015
    Assignee: Mazda Motor Corporation
    Inventors: Takamasa Matsumoto, Mikihito Fujii