Patents by Inventor Tohru Matsumoto

Tohru 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).

  • Publication number: 20230010640
    Abstract: A reading device and an image forming apparatus are provided. The reading device includes an image reading device configured to read an image on a recording medium being conveyed, a background device serving as a background image when the image is read by the image reading device, and a foreign-object detector configured to compare a first read image obtained as the background device is read by the image reading device with a second read image obtained as the background device and the recording medium are read by the image reading device to detect an attached foreign object. The image forming apparatus includes the reading device and an image forming device.
    Type: Application
    Filed: May 26, 2022
    Publication date: January 12, 2023
    Applicant: Ricoh Company, Ltd.
    Inventors: Yoshio KONNO, Tatsuya ISHII, Tohru MATSUMOTO, Kohta AOYAGI, Satoshi NAKAYAMA, Hideyo MAKINO, Susumu MIKAJIRI, Kimiharu YAMAZAKI
  • Publication number: 20220318582
    Abstract: A reading apparatus includes a reading device and circuitry. The reading device reads a recording medium in a direction intersecting a conveyance direction of the recording medium. The circuitry detects a reference image for cutting processing of the recording medium, based on read information read by the reading device.
    Type: Application
    Filed: March 24, 2022
    Publication date: October 6, 2022
    Applicant: Ricoh Company, Ltd.
    Inventors: Tatsuya ISHII, Kohta AOYAGI, Kimiharu YAMAZAKI, Tohru MATSUMOTO, Satoshi NAKAYAMA, Ryosuke EBINUMA, Ryoh ISHITSUKA
  • Publication number: 20220321708
    Abstract: A reading apparatus includes a reading device and processing circuitry. The reading device reads a recording medium. The processing circuitry outputs maintenance information based on read information read by the reading device.
    Type: Application
    Filed: March 22, 2022
    Publication date: October 6, 2022
    Applicant: Ricoh Company, Ltd.
    Inventors: Tohru MATSUMOTO, Kohta AOYAGI, Tatsuya ISHII, Kimiharu YAMAZAKI, Satoshi NAKAYAMA, Ryosuke EBINUMA, Ryoh ISHITSUKA
  • Publication number: 20220291618
    Abstract: An image reading device includes an image reader and circuitry. The image reader is configured to read an image on a recording medium. The circuitry is configured to obtain defective image information and defect type information based on the image on the recording medium read by the image reader, and determine an abnormality of the image on the recording medium based on the defective image information and the defect type information.
    Type: Application
    Filed: February 28, 2022
    Publication date: September 15, 2022
    Applicant: Ricoh Company, Ltd.
    Inventors: Kimiharu YAMAZAKI, Kohta AOYAGI, Tatsuya ISHII, Tohru MATSUMOTO, Satoshi NAKAYAMA, Ryosuke EBINUMA, Ryoh ISHITSUKA
  • Publication number: 20220286572
    Abstract: An image inspector includes a recording device and circuitry. The reading device is configured to read an image on a recording medium. The circuitry is configured to determine whether the recording medium has a wrinkle and an edge folding based on a plurality of positions on the image on the recording medium read by the reading device satisfying a predetermined relation. The circuitry is configured to determine whether the recording medium has the wrinkle based on the predetermined relation, and then determine whether the recording medium has the edge folding based on the predetermined relation.
    Type: Application
    Filed: February 23, 2022
    Publication date: September 8, 2022
    Applicant: Ricoh Company, Ltd.
    Inventors: Satoshi NAKAYAMA, Tohru MATSUMOTO, Kohta AOYAGI, Ryosuke EBINUMA, Ryoh ISHITSUKA, Kimiharu YAMAZAKI, Tatsuya ISHII
  • Publication number: 20220286576
    Abstract: An image inspecting device includes an abnormality detector and circuitry. The abnormality detector is configured to detect an abnormality of an inspection object image. The circuitry is configured to set a non-detection area to be excluded from a detection object area within which the abnormality detector detects an image abnormality and set an area including an abnormality detection portion as the non-detection area when a detection result obtained by the abnormality detector satisfies a non-detection condition.
    Type: Application
    Filed: February 7, 2022
    Publication date: September 8, 2022
    Applicant: Ricoh Company, Ltd.
    Inventors: Ryoh ISHITSUKA, Kohta AOYAGI, Ryosuke EBINUMA, Satoshi NAKAYAMA, Kimiharu YAMAZAKI, Tohru MATSUMOTO, Tatsuya ISHII
  • Publication number: 20220263963
    Abstract: An image abnormality detecting device includes an image reader, an abnormality detector, a pattern holder, and circuitry. The image reader is configured to read an image on a recording medium. The abnormality detector is configured to detect abnormality of the image based on read information of the image on the recording medium, read by the image reader. The pattern holder has a check pattern and is disposed within a reading area of the image reader. The circuitry is configured to inspect a detecting operation of the abnormality detector based on read information of the check pattern read by the image reader.
    Type: Application
    Filed: January 28, 2022
    Publication date: August 18, 2022
    Applicant: Ricoh Company, Ltd.
    Inventors: Kohta AOYAGI, Tohru MATSUMOTO, Kimiharu YAMAZAKI, Satoshi NAKAYAMA, Ryosuke EBINUMA, Ryoh ISHIZUKA, Tatsuya ISHII
  • Publication number: 20220219932
    Abstract: An image reading device includes a reader, a transparent member, an opposing member, first and second conveyance rotators, and circuitry. The reader reads a sheet. The transparent member is disposed between the reader and the sheet. The opposing member is disposed facing the reader via the transparent member. The first conveyance rotator is disposed upstream from the reader in a conveyance direction of the sheet. The second conveyance rotator is disposed downstream from the reader in the conveyance direction. The circuitry cause the first conveyance rotator and the second conveyance rotator to convey a cleaning sheet at respective conveying speeds different from each other and bring the cleaning sheet into contact with at least one of the transparent member or the opposing member.
    Type: Application
    Filed: December 23, 2021
    Publication date: July 14, 2022
    Applicant: Ricoh Company, Ltd.
    Inventors: Kimiharu YAMAZAKI, Hideyo MAKINO, Susumu MIKAJIRI, Tohru MATSUMOTO, Satoshi NAKAYAMA, Kohta AOYAGI, Ryosuke EBINUMA, Tatsuya ISHII
  • Patent number: 11310382
    Abstract: An image reading device includes a transparent member unit including a transparent member, an opposing member opposed to the transparent member, and a reading mechanism. The reading mechanism irradiates the opposing member and a medium being conveyed between the transparent member and the opposing member with light through the transparent member and receive reflected light from the opposing member and the medium. The reading mechanism includes a position adjuster to which the transparent member unit is secured and a guide to guide the transparent member unit in a direction intersecting a direction of conveyance of the medium to detachably attach the transparent member unit to the reading mechanism. The position adjuster changes a position at which the transparent member unit is secured with respect to the reading mechanism. The transparent member unit is secured to the position adjuster.
    Type: Grant
    Filed: February 18, 2021
    Date of Patent: April 19, 2022
    Assignee: RICOH COMPANY, LTD.
    Inventors: Satoshi Nakayama, Susumu Mikajiri, Kimiharu Yamazaki, Tohru Matsumoto, Kohta Aoyagi, Hideyo Makino, Ryosuke Ebinuma
  • Publication number: 20210297543
    Abstract: An image reading device includes a transparent member unit including a transparent member, an opposing member opposed to the transparent member, and a reading mechanism. The reading mechanism irradiates the opposing member and a medium being conveyed between the transparent member and the opposing member with light through the transparent member and receive reflected light from the opposing member and the medium. The reading mechanism includes a position adjuster to which the transparent member unit is secured and a guide to guide the transparent member unit in a direction intersecting a direction of conveyance of the medium to detachably attach the transparent member unit to the reading mechanism. The position adjuster changes a position at which the transparent member unit is secured with respect to the reading mechanism. The transparent member unit is secured to the position adjuster.
    Type: Application
    Filed: February 18, 2021
    Publication date: September 23, 2021
    Applicant: Ricoh Company, Ltd.
    Inventors: Satoshi NAKAYAMA, Susumu MIKAJIRI, Kimiharu YAMAZAKI, Tohru MATSUMOTO, Kohta AOYAGI, Hideyo MAKINO, Ryosuke EBINUMA
  • Patent number: 11126124
    Abstract: An image reading device includes a plurality of image reading units arranged at different positions in a width direction perpendicular to a conveyance direction of a recording medium to read an image on the recording medium at image reading positions and a conveyance roller pair that conveys the recording medium to the plurality of image reading units. The conveyance roller pair includes a drive roller and a driven roller that contacts the drive roller and rotates following the drive roller. The plurality of image reading units includes an upstream and a downstream image reading units downstream from the upstream image reading unit in the conveyance direction. A reading interval between the image reading positions and a diameter of the drive roller satisfy the relation: X2=n1×?×D1a, where X2 represents the reading interval, n1 represents an integer, and D1a represents the diameter of the drive roller.
    Type: Grant
    Filed: November 23, 2020
    Date of Patent: September 21, 2021
    Assignee: Ricoh Company, Ltd.
    Inventors: Kimiharu Yamazaki, Hideyo Makino, Susumu Mikajiri, Satoshi Nakayama, Hiroki Yamamura, Kohta Aoyagi, Tohru Matsumoto
  • Publication number: 20210165355
    Abstract: An image reading device includes a plurality of image reading units arranged at different positions in a width direction perpendicular to a conveyance direction of a recording medium to read an image on the recording medium at image reading positions and a conveyance roller pair that conveys the recording medium to the plurality of image reading units. The conveyance roller pair includes a drive roller and a driven roller that contacts the drive roller and rotates following the drive roller. The plurality of image reading units includes an upstream and a downstream image reading units downstream from the upstream image reading unit in the conveyance direction. A reading interval between the image reading positions and a diameter of the drive roller satisfy the relation: X2=n1×?×D1a, where X2 represents the reading interval, n1 represents an integer, and D1a represents the diameter of the drive roller.
    Type: Application
    Filed: November 23, 2020
    Publication date: June 3, 2021
    Applicant: Ricoh Company, Ltd.
    Inventors: Kimiharu Yamazaki, Hideyo Makino, Susumu Mikajiri, Satoshi Nakayama, Hiroki Yamamura, Kohta Aoyagi, Tohru Matsumoto
  • Patent number: 10773913
    Abstract: A sheet conveying device, which is included in an image forming apparatus, includes a drive device, a pair of sheet holding rollers to convey a sheet in a sheet conveying direction, a gate to which a leading end of the sheet contacts, a first detector disposed upstream from the pair of sheet holding rollers to detect a position of the sheet and a second detector disposed downstream from the pair of sheet holding rollers to detect a position of the sheet. The pair of sheet holding rollers performs a primary correction to detect and correct a lateral displacement amount of the sheet by moving the pair of sheet holding rollers while holding the sheet, and then performs a secondary correction to detect and correct at least one of a subsequent lateral displacement of the sheet and an angular displacement of the sheet.
    Type: Grant
    Filed: January 2, 2018
    Date of Patent: September 15, 2020
    Assignee: Ricoh Company, Ltd.
    Inventor: Tohru Matsumoto
  • Patent number: 10545443
    Abstract: An image forming apparatus includes an information obtainer, a memory, a candidate determining unit, and an image forming device. The information obtainer obtains feature information from the target recording medium. The memory stores at least one set of recording medium information regarding the target recording medium associated with the feature information and at least one set of image forming condition information corresponding to the recording medium information. The recording medium information is identification information. The candidate determining unit determines a candidate recording medium information from the recording medium information stored in the memory based on the feature information of the target recording medium obtained by the information obtainer. The image forming device forms an image on the target recording medium based on the image forming condition information in the memory according to the candidate recording medium information determined by the candidate determining unit.
    Type: Grant
    Filed: August 8, 2018
    Date of Patent: January 28, 2020
    Assignee: Ricoh Company, Ltd.
    Inventors: Yukifumi Kobayashi, Hideyo Makino, Tetsuya Ofuchi, Takayuki Nishimura, Yasuyuki Sekino, Tohru Matsumoto, Noriaki Takenaga, Satoshi Nakayama
  • Patent number: 10212298
    Abstract: A sheet discriminator, which is incorporated in an image forming apparatus and an image forming system, includes a sheet loader on which a recording medium is loaded, an information detector including a light emitter to emit light to a surface of the recording medium loaded on the sheet loader and a light receiver to receive the light emitted by the light emitter and detecting information of the recording medium, a sheet distinguisher to distinguish a type of the recording medium based on the information detected by the information detector, and a light emission controller to control activation and stop of the light emitter and activate the light emitter before the information detector starts detection of the information of the recording medium.
    Type: Grant
    Filed: December 2, 2014
    Date of Patent: February 19, 2019
    Assignee: RICOH COMPANY, LTD.
    Inventors: Tohru Matsumoto, Tetsuya Ofuchi, Takayuki Nishimura, Yukifumi Kobayashi
  • Patent number: 10203641
    Abstract: A sheet discriminator, which can be included in an image forming apparatus, includes an optical information detector, a sheet distinguisher, and a sheet thickness detector. The optical information detector includes a light emitter to emit light to a recording medium and a light receiver to receive the light and detects information of the recording medium. The sheet distinguisher distinguishes a type of the recording medium based on the information detected by the optical information detector. The sheet thickness detector includes a displacement gauge to sandwich the recording medium with an opposing member disposed facing the displacement gauge and to move from an initial position thereof and a displacement detector to detect an amount of displacement of the displacement gauge. The sheet thickness detector detects a thickness of the recording medium based on detection results obtained by the displacement detector.
    Type: Grant
    Filed: December 8, 2016
    Date of Patent: February 12, 2019
    Assignee: Ricoh Company, Ltd.
    Inventors: Noriaki Takenaga, Tohru Matsumoto, Tetsuya Ofuchi, Takayuki Nishimura, Yukifumi Kobayashi, Hideyo Makino, Satoshi Nakayama
  • Publication number: 20180364627
    Abstract: An image forming apparatus includes an information obtainer, a memory, a candidate determining unit, and an image forming device. The information obtainer obtains feature information from the target recording medium. The memory stores at least one set of recording medium information regarding the target recording medium associated with the feature information and at least one set of image forming condition information corresponding to the recording medium information. The recording medium information is identification information. The candidate determining unit determines a candidate recording medium information from the recording medium information stored in the memory based on the feature information of the target recording medium obtained by the information obtainer. The image forming device forms an image on the target recording medium based on the image forming condition information in the memory according to the candidate recording medium information determined by the candidate determining unit.
    Type: Application
    Filed: August 8, 2018
    Publication date: December 20, 2018
    Applicant: Ricoh Company, Ltd.
    Inventors: Yukifumi KOBAYASHI, Hideyo MAKINO, Tetsuya OFUCHI, Takayuki NISHIMURA, Yasuyuki SEKINO, Tohru MATSUMOTO, Noriaki TAKENAGA, Satoshi NAKAYAMA
  • Patent number: 10073396
    Abstract: An image forming apparatus includes an information obtainer, a memory, a candidate determining unit, and an image forming device. The information obtainer obtains feature information from the target recording medium. The memory stores at least one set of recording medium information regarding the target recording medium associated with the feature information and at least one set of image forming condition information corresponding to the recording medium information. The recording medium information is identification information. The candidate determining unit determines a candidate recording medium information from the recording medium information stored in the memory based on the feature information of the target recording medium obtained by the information obtainer. The image forming device forms an image on the target recording medium based on the image forming condition information in the memory according to the candidate recording medium information determined by the candidate determining unit.
    Type: Grant
    Filed: February 28, 2017
    Date of Patent: September 11, 2018
    Assignee: Ricoh Company, Ltd.
    Inventors: Yukifumi Kobayashi, Hideyo Makino, Tetsuya Ofuchi, Takayuki Nishimura, Yasuyuki Sekino, Tohru Matsumoto, Noriaki Takenaga, Satoshi Nakayama
  • Publication number: 20180194581
    Abstract: A sheet conveying device, which is included in an image forming apparatus, includes a drive device, a pair of sheet holding rollers to convey a sheet in a sheet conveying direction, a gate to which a leading end of the sheet contacts, a first detector disposed upstream from the pair of sheet holding rollers to detect a position of the sheet and a second detector disposed downstream from the pair of sheet holding rollers to detect a position of the sheet. The pair of sheet holding rollers performs a primary correction to detect and correct a lateral displacement amount of the sheet by moving the pair of sheet holding rollers while holding the sheet, and then performs a secondary correction to detect and correct at least one of a subsequent lateral displacement of the sheet and an angular displacement of the sheet.
    Type: Application
    Filed: January 2, 2018
    Publication date: July 12, 2018
    Applicant: Ricoh Company, Ltd.
    Inventor: Tohru MATSUMOTO
  • Patent number: RE49284
    Abstract: Disclosed is a method for controlling a cordless telephone device for use in a system that allows remote control of a home electric appliance. The method includes a first generation step of causing a first generation unit in a handset to encode audio input via a sound receiving unit in the handset to generate a first stream, and a first transmission step of transmitting the first stream to a base unit. The first generation step includes causing the first generation unit to generate instruction bit information and a first instruction stream when a first trigger indicating a request to start the remote control is given to the first generation unit. The first transmission step includes transmitting the instruction bit information and the first instruction stream to the base unit through a multiplexing scheme that is common to transmission of a first stream generated when the first trigger is not given.
    Type: Grant
    Filed: August 21, 2020
    Date of Patent: November 8, 2022
    Assignee: Panasonic Intellectual Property Corporation of America
    Inventors: Masayuki Kozuka, Shingo Matsumoto, Hideyuki Oka, Akihiko Inoue, Hiroshi Yahata, Tomoki Ogawa, Tohru Wakabayashi, Keizo Ishiguro