Patents by Inventor Seiji Nishizawa

Seiji Nishizawa 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: 12107762
    Abstract: A high-performance optical and electronic integrated switch capable of effectively extending the transmission distance includes a network processor that controls the functions of the packet switch, a plurality of optical transceivers provided near the processor and having a photoelectric conversion function, and an optical relay switch. A plurality of optical waveguides are connected to the input and output sides of the optical relay switch. Each optical transceiver has a regeneration function that performs optical-electrical conversion on inputted optical signals, then turns back the converted signals, and performs signal conversion on them, and its input side is connected with a routing optical waveguide included in the optical waveguides on the output side of the switch and its output side is connected with a routing optical waveguide included in the optical waveguides on the input side of the switch. The optical waveguides include ones for connecting to an external communication counterpart.
    Type: Grant
    Filed: January 30, 2020
    Date of Patent: October 1, 2024
    Assignee: Nippon Telegraph and Telephone Corporation
    Inventors: Osamu Moriwaki, Shunichi Soma, Keita Yamaguchi, Kenya Suzuki, Seiki Kuwabara, Tetsuro Inui, Shuto Yamamoto, Seiji Okamoto, Hideki Nishizawa
  • Publication number: 20240231267
    Abstract: A finisher for binding a sheet bundle includes a conveying portion for conveying sheets, a stacking portion for stacking the sheets, a manual setting portion to which the sheet bundle is inserted by an operator, a stapler having a head at a front portion thereof for binding the sheet bundle by a staple and a cartridge at a rear portion for housing the staple, a stapler moving unit for moving the stapler to a first stapling position for binding a corer portion of the sheet bundle, a second stapling position for binding the sheet bundle inserted into the manual setting portion and a staple loading position for removing the cartridge and replenishing a new cartridge, and a moving unit for rotating the stapler to a posture such that the rear portion rather than the front portion of the stapler is located at a front side in the depth direction.
    Type: Application
    Filed: March 22, 2024
    Publication date: July 11, 2024
    Applicant: CANON FINETECH NISCA INC.
    Inventors: Yusuke OBUCHI, Hideto ABE, Masaya TAKAHASHI, Seiji NISHIZAWA
  • Patent number: 11947301
    Abstract: A sheet processing apparatus includes a conveying portion, a conveying path, a discharge port, a stacking portion, a manual setting portion, a binding device which binds a sheet bundle formed by the stacking portion and a sheet bundle set at the manual setting portion by a staple, a first regulating portion which regulates a position of the sheet bundle at a rear side of the apparatus in a width direction, and a second regulating portion which regulates a position of the sheet bundle in the conveying direction. The binding device is formed to be movable back and forth to a front side and the rear side of the apparatus. When a staple is replenished to the binding device, the binding device is positioned at the third position so that a cartridge of the staple is loaded into the binding device from the front side of the apparatus.
    Type: Grant
    Filed: December 5, 2022
    Date of Patent: April 2, 2024
    Assignee: CANON FINETECH NISCA INC.
    Inventors: Yusuke Obuchi, Hideto Abe, Masaya Takahashi, Seiji Nishizawa
  • Publication number: 20240034585
    Abstract: A sheet feeding apparatus for feeding sheets is provided with a delivery roller for delivering sheets on a stack tray, and an air blower mechanism for blowing air to the sheets on the stack tray, and selects to execute one of first operation for blowing air to the sheets to handle the sheets on the stack tray in a state in which the delivery roller is brought into contact with the sheets stacked on the stack tray, and second operation for blowing air to the sheets on the stack tray to handle the sheets in a state in which the delivery roller is retracted from the sheets stacked on the stack tray.
    Type: Application
    Filed: April 24, 2023
    Publication date: February 1, 2024
    Applicant: CANON FINETECH NISCA INC.
    Inventors: Seiji NISHIZAWA, Kazunori HATAKAWA
  • Publication number: 20230099220
    Abstract: A sheet processing apparatus includes a conveying portion, a conveying path, a discharge port, a stacking portion, a manual setting portion, a binding device which binds a sheet bundle formed by the stacking portion and a sheet bundle set at the manual setting portion by a staple, a first regulating portion which regulates a position of the sheet bundle at a rear side of the apparatus in a width direction, and a second regulating portion which regulates a position of the sheet bundle in the conveying direction. The binding device is formed to be movable back and forth to a front side and the rear side of the apparatus. When a staple is replenished to the binding device, the binding device is positioned at the third position so that a cartridge of the staple is loaded into the binding device from the front side of the apparatus.
    Type: Application
    Filed: December 5, 2022
    Publication date: March 30, 2023
    Applicant: CANON FINETECH NISCA INC.
    Inventors: Yusuke OBUCHI, Hideto ABE, Masaya TAKAHASHI, Seiji NISHIZAWA
  • Patent number: 11535469
    Abstract: A sheet feeding apparatus includes: a storage part that stores a sheet, and a feeding part that has a feeding roller for feeding the sheet. The storage part and the feeding part are configured to be integrally inserted/withdrawn into/from an apparatus enclosure. The feeding roller is moved from a feeding position to a retracting position before the storage part and the feeding part are withdrawn from the enclosure.
    Type: Grant
    Filed: December 24, 2020
    Date of Patent: December 27, 2022
    Assignee: CANON FINETECH NISCA INC.
    Inventors: Masatoshi Ozawa, Hiroto Akiyama, Seiji Nishizawa, Kei Horiuchi
  • Patent number: 11520268
    Abstract: A sheet binding processing apparatus includes a conveying portion, a conveying path for sheets, a stacking portion on which sheets from the conveying path are stacked, a first regulating portion for regulating a sheet bundle on the stacking portion in a crossing direction, a second regulating portion for regulating a sheet bundle in the conveying direction, a manual setting portion for setting sheets from an outside of the apparatus, and a binding device which binds a sheet bundle by a staple and moves in the crossing direction. An angular posture of the binding device located at a third position is different from an angular posture located at a first position. An angular posture of the binding device located at the third position is different from an angular posture located at a second position. The second position is located at a second side of the first position.
    Type: Grant
    Filed: September 9, 2021
    Date of Patent: December 6, 2022
    Assignee: CANON FINETECH NISCA INC.
    Inventors: Yusuke Obuchi, Hideto Abe, Masaya Takahashi, Seiji Nishizawa
  • Patent number: 11347178
    Abstract: An image reading apparatus includes a first opening/closing unit to openably and closeably support a sheet conveyance portion with respect to an image reading portion, and a second opening/closing unit to openably and closeably support the sheet conveyance portion with respect to the image reading portion. The first opening/closing unit includes a first spring to urge the sheet conveyance portion in a direction in which the sheet conveyance portion moves from a closed position toward an opened position, and the second opening/closing unit includes a second spring to urge the sheet conveyance portion in the direction in which the sheet conveyance portion moves from the closed position toward the opened position and an oil damper to attenuate vibration energy of the sheet conveyance portion. The first opening/closing unit does not include an oil damper.
    Type: Grant
    Filed: March 4, 2019
    Date of Patent: May 31, 2022
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Seiji Nishizawa
  • Patent number: 11290611
    Abstract: A document reading apparatus includes a document supporting portion, a conveyance portion, a driving motor, an image reading unit, and a control portion. The control portion is configured to execute a high speed mode in which the conveyance speed is set to a first conveyance speed and a low speed mode in which the conveyance speed is set to a second conveyance speed slower than the first conveyance speed. When the control portion executes the low speed mode, if the document has a first thickness, the control portion is configured to execute a first low speed mode where a first drive speed is set to the driving motor. If the document has a second thickness thicker than the first thickness, the control portion is configured to execute a second low speed mode where a second drive speed faster than the first drive speed is set to the driving motor.
    Type: Grant
    Filed: April 21, 2020
    Date of Patent: March 29, 2022
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Masaki Omori, Seiji Nishizawa
  • Publication number: 20210405569
    Abstract: A sheet binding processing apparatus includes a conveying portion, a conveying path for sheets, a stacking portion on which sheets from the conveying path are stacked, a first regulating portion for regulating a sheet bundle on the stacking portion in a crossing direction, a second regulating portion for regulating a sheet bundle in the conveying direction, a manual setting portion for setting sheets from an outside of the apparatus, and a binding device which binds a sheet bundle by a staple and moves in the crossing direction. An angular posture of the binding device located at a third position is different from an angular posture located at a first position. An angular posture of the binding device located at the third position is different from an angular posture located at a second position. The second position is located at a second side of the first position.
    Type: Application
    Filed: September 9, 2021
    Publication date: December 30, 2021
    Applicant: CANON FINETECH NISCA INC.
    Inventors: Yusuke OBUCHI, Hideto ABE, Masaya TAKAHASHI, Seiji NISHIZAWA
  • Patent number: 11150588
    Abstract: A sheet processing apparatus includes a conveying portion for conveying sheets, a conveying path for sheets, a stack portion for stacking sheets, a first binding portion having a first binding member and moving in a crossing direction crossing to the conveying direction, a first regulating portion which regulates a position of a sheet bundle stacked on the stack portion, a second regulating portion which regulates a position of a sheet bundle stacked on the stack portion, a third regulating portion which regulates a position of a sheet bundle, and a second binding portion which has a second binding member and binds a corner portion of a sheet bundle without a staple. The first binding portion binds a corner portion of a sheet bundle by a staple. The second binding member is located at a downstream of the first binding member in the conveying direction.
    Type: Grant
    Filed: June 12, 2020
    Date of Patent: October 19, 2021
    Assignee: CANON FINETECH NISCA INC.
    Inventors: Yusuke Obuchi, Hideto Abe, Masaya Takahashi, Seiji Nishizawa
  • Publication number: 20210198061
    Abstract: A sheet feeding apparatus includes: a storage part that stores a sheet, and a feeding part that has a feeding roller for feeding the sheet. The storage part and the feeding part are configured to be integrally inserted/withdrawn into/from an apparatus enclosure. The feeding roller is moved from a feeding position to a retracting position before the storage part and the feeding part are withdrawn from the enclosure.
    Type: Application
    Filed: December 24, 2020
    Publication date: July 1, 2021
    Applicant: CANON FINETECH NISCA INC.
    Inventors: Masatoshi OZAWA, Hiroto AKIYAMA, Seiji NISHIZAWA, Kei HORIUCHI
  • Publication number: 20200366807
    Abstract: A document reading apparatus includes a document supporting portion, a conveyance portion, a driving motor, an image reading unit, and a control portion. The control portion is configured to execute a high speed mode in which the conveyance speed is set to a first conveyance speed and a low speed mode in which the conveyance speed is set to a second conveyance speed slower than the first conveyance speed. When the control portion executes the low speed mode, if the document has a first thickness, the control portion is configured to execute a first low speed mode where a first drive speed is set to the driving motor. If the document has a second thickness thicker than the first thickness, the control portion is configured to execute a second low speed mode where a second drive speed faster than the first drive speed is set to the driving motor.
    Type: Application
    Filed: April 21, 2020
    Publication date: November 19, 2020
    Inventors: Masaki Omori, Seiji Nishizawa
  • Publication number: 20200301341
    Abstract: A sheet processing apparatus includes a conveying portion for conveying sheets, a conveying path for sheets, a stack portion for stacking sheets, a first binding portion having a first binding member and moving in a crossing direction crossing to the conveying direction, a first regulating portion which regulates a position of a sheet bundle stacked on the stack portion, a second regulating portion which regulates a position of a sheet bundle stacked on the stack portion, a third regulating portion which regulates a position of a sheet bundle, and a second binding portion which has a second binding member and binds a corner portion of a sheet bundle without a staple. The first binding portion binds a corner portion of a sheet bundle by a staple. The second binding member is located at a downstream of the first binding member in the conveying direction.
    Type: Application
    Filed: June 12, 2020
    Publication date: September 24, 2020
    Applicant: CANON FINETECH NISCA INC.
    Inventors: Yusuke OBUCHI, Hideto ABE, Masaya TAKAHASHI, Seiji NISHIZAWA
  • Patent number: 10705471
    Abstract: A sheet processing apparatus includes a conveying portion; a conveying path for sheets conveyed by the conveying portion; a stack portion where sheets discharged from the conveying path are stacked; a first binding portion moving in a crossing direction crossing the conveying direction; a first regulating portion regulating a position of a sheet bundle stacked on the stack portion; a first guide member guiding the first regulating portion; a second regulating portion regulating a position of a sheet bundle on the stack portion in the crossing direction; a second guide member guiding the second regulating portion; a third regulating portion regulating a position of a sheet bundle on the stack portion in the conveying direction; and a second binding portion binding a corner portion of a sheet bundle without a staple. The first binding portion binds a corner portion of a sheet bundle by a staple.
    Type: Grant
    Filed: January 27, 2020
    Date of Patent: July 7, 2020
    Assignee: CANON FINETECH NISCA INC.
    Inventors: Yusuke Obuchi, Hideto Abe, Masaya Takahashi, Seiji Nishizawa
  • Publication number: 20200159157
    Abstract: A sheet processing apparatus includes a conveying portion; a conveying path for sheets conveyed by the conveying portion; a stack portion where sheets discharged from the conveying path are stacked; a first binding portion moving in a crossing direction crossing the conveying direction; a first regulating portion regulating a position of a sheet bundle stacked on the stack portion; a first guide member guiding the first regulating portion; a second regulating portion regulating a position of a sheet bundle on the stack portion in the crossing direction; a second guide member guiding the second regulating portion; a third regulating portion regulating a position of a sheet bundle on the stack portion in the conveying direction; and a second binding portion binding a corner portion of a sheet bundle without a staple. The first binding portion binds a corner portion of a sheet bundle by a staple.
    Type: Application
    Filed: January 27, 2020
    Publication date: May 21, 2020
    Applicant: CANON FINETECH NISCA INC.
    Inventors: Yusuke OBUCHI, Hideto ABE, Masaya TAKAHASHI, Seiji NISHIZAWA
  • Patent number: 10579005
    Abstract: A sheet processing apparatus includes a conveying portion, a stack portion on which sheets are stacked, a first binding portion moving in a crossing direction crossing a conveying direction, a first regulating portion regulating a position of a sheet bundle stacked on the stack portion in the crossing direction, a first rack moving in the crossing direction with the first regulating portion, a first pinion forming a rack-pinion mechanism with the first rack, a second regulating portion regulating a position of a sheet bundle stacked on the stack portion in the crossing direction, a second rack moving in the crossing direction with the second regulating portion, a second pinion forming another rack-pinion mechanism with the second rack, a third regulating portion regulating a position of a sheet bundle stacked on the stack portion, and a second binding portion which binds a corner portion of a sheet bundle without a staple.
    Type: Grant
    Filed: September 19, 2019
    Date of Patent: March 3, 2020
    Assignee: CANON FINETECH NISCA INC.
    Inventors: Yusuke Obuchi, Hideto Abe, Masaya Takahashi, Seiji Nishizawa
  • Publication number: 20200012226
    Abstract: A sheet processing apparatus includes a conveying portion, a stack portion on which sheets are stacked, a first binding portion moving in a crossing direction crossing a conveying direction, a first regulating portion regulating a position of a sheet bundle stacked on the stack portion in the crossing direction, a first rack moving in the crossing direction with the first regulating portion, a first pinion forming a rack-pinion mechanism with the first rack, a second regulating portion regulating a position of a sheet bundle stacked on the stack portion in the crossing direction, a second rack moving in the crossing direction with the second regulating portion, a second pinion forming another rack-pinion mechanism with the second rack, a third regulating portion regulating a position of a sheet bundle stacked on the stack portion, and a second binding portion which binds a corner portion of a sheet bundle without a staple.
    Type: Application
    Filed: September 19, 2019
    Publication date: January 9, 2020
    Applicant: CANON FINETECH NISCA INC.
    Inventors: Yusuke OBUCHI, Hideto ABE, Masaya TAKAHASHI, Seiji NISHIZAWA
  • Patent number: 10496023
    Abstract: A sheet processing apparatus includes a conveying portion, a stack portion which stacks sheets, a first regulating portion which regulates a position of a sheet bundle in a crossing direction crossing to a conveying direction, a second regulating portion which regulates a position of a sheet bundle in the conveying direction, a first binding portion which moves from a first side to a second side and binds a corner portion of a sheet bundle by a staple, a second binding portion which binds a corner portion of a sheet bundle without a staple. The second binding portion includes a first face having a plurality of projections and a second face having a plurality of concave grooves matching the plurality of projections. A sheet bundle is bound by pressing the first face and the second face.
    Type: Grant
    Filed: July 10, 2018
    Date of Patent: December 3, 2019
    Assignee: CANON FINETECH NISCA INC.
    Inventors: Yusuke Obuchi, Hideto Abe, Masaya Takahashi, Seiji Nishizawa
  • Publication number: 20190302675
    Abstract: An image reading apparatus includes a sheet conveyance portion, an image reading portion configured to read an image on the sheet conveyed by the sheet conveyance portion, and an opening/closing device configured to openably and closeably support the sheet conveyance portion with respect to the image reading portion. The opening/closing device includes a first opening/closing unit and a second opening/closing unit. The first opening/closing unit is provided at, in a movement direction of the movable portion, a position in a first distance from a reading position. The second opening/closing unit is provided at a position in a second distance longer than the first distance from the reading position in the movement direction. The second opening/closing unit includes an attenuation device configured to attenuate vibration energy of the sheet conveyance portion, and the first opening/closing unit does not include an attenuation device.
    Type: Application
    Filed: March 4, 2019
    Publication date: October 3, 2019
    Inventor: Seiji Nishizawa