Patents Assigned to Ricoh Company, Ltd.
  • Publication number: 20240109322
    Abstract: A maintenance device includes: a cap detachably contactable with a nozzle face of a liquid discharge head; a suction device to suck liquid from the cap; a waste liquid storage to store the liquid sucked from the cap by the suction device; a waste liquid channel connecting the cap and the waste liquid storage; a cleaning liquid storage storing a cleaning liquid to be supplied to the cap; and a cleaning liquid channel connecting the cap and the cleaning liquid storage. The suction device sucks: the waste liquid in the cap to discharge the waste liquid to the waste liquid storage through the waste liquid channel; and the cleaning liquid in the cleaning liquid storage to supply the cleaning liquid to the cap through the cleaning liquid channel.
    Type: Application
    Filed: August 30, 2023
    Publication date: April 4, 2024
    Applicant: Ricoh Company, Ltd.
    Inventor: Kaoru SATOH
  • Publication number: 20240111407
    Abstract: A point cloud processing apparatus includes circuitry to generate a selection screen displaying a plurality of options each of which indicates a corresponding one of a plurality of qualities for point cloud processing that is performed on point cloud data representing a three-dimensional point cloud. The circuitry stores, in a memory, a processing result of the point cloud processing performed with one of the plurality of qualities on the point cloud data. The one of the plurality of qualities is a selected one of the plurality of options.
    Type: Application
    Filed: September 22, 2023
    Publication date: April 4, 2024
    Applicant: Ricoh Company, Ltd.
    Inventor: Naoki Motohashi
  • Publication number: 20240109335
    Abstract: An image processing device includes: a first contamination detection circuit to detect contamination on an image reading device using a first relative threshold value calculated from a standard deviation of pixel values of a same-density region in a read image obtained by the image reading device, the image reading device reading a reference image formed on a recording medium by a line head including a plurality of inkjet heads and that has density regions of a plurality of gradations; a second contamination detection circuit to detect contamination on the image reading device using a second relative threshold value calculated from a standard deviation of pixel values of an area in the read image, the area being divided for each of the plurality of inkjet heads; and a contamination processing circuit to eliminate an influence of the contamination on the read image when at least one of the first contamination detection circuit or the second contamination detection circuit determines the contamination.
    Type: Application
    Filed: September 18, 2023
    Publication date: April 4, 2024
    Applicant: Ricoh Company, Ltd.
    Inventors: Paru KONDO, Hiroaki FUKUDA, Dai KURABAYASHI, Takuroh SAWADA
  • Publication number: 20240112353
    Abstract: An image processing apparatus communicates with an image capturing apparatus. The image processing apparatus includes circuitry to acquire an image of an imaging range of the image capturing apparatus, captured by the image capturing apparatus, recognize an identification that identifies an individual target object included in the image, calculate a trajectory of positions between which the target object included in the image moves, estimate an area in which the target object is present based on the trajectory, acquire the trajectory based on the positions at which the identification of the target object is recognized, and obtain individual area estimation information associating the estimated area corresponding to the acquired trajectory and the identification of the target object.
    Type: Application
    Filed: September 29, 2023
    Publication date: April 4, 2024
    Applicant: Ricoh Company, Ltd.
    Inventor: Mei Oyama
  • Publication number: 20240109334
    Abstract: A printing system is disclosed. The printing system includes at least one physical memory device to store defective print element determination logic and one or more processors coupled with the at least one physical memory device to execute the defective print element determination logic to receive a print image comprising evaluation marks and locator marks applied to a print medium by a plurality of pel forming elements according to print instructions and identify pel forming elements associated with print defect pels in the print image among the plurality of pel forming elements based on the evaluation marks, the locator marks and the print instructions.
    Type: Application
    Filed: September 29, 2022
    Publication date: April 4, 2024
    Applicant: Ricoh Company, Ltd.
    Inventors: Jiwon Gim, Scott R. Johnson, Ziling Zhang, Mikel Stanich
  • Patent number: 11949826
    Abstract: An image reading device includes a sensor and circuitry. The sensor reads an image on a recording medium. The circuitry inspects the image and outputs an inspection result. The circuitry excludes an area of the recording medium as a first area from an area to be inspected, based on a type of the recording medium or a position of the recording medium with respect to a reading position at which the sensor reads the image, to determine a second area to be inspected. The circuitry outputs the inspection result based on the second area.
    Type: Grant
    Filed: July 14, 2022
    Date of Patent: April 2, 2024
    Assignee: Ricoh Company, Ltd.
    Inventors: Rie Suzuki, Tatsuya Ishii
  • Patent number: 11946860
    Abstract: An electronic device includes a housing that houses a movable member inside the housing, and a shock absorbing member that reduces a shock to the movable member. The shock absorbing member holds the housing on an inner side of the shock absorbing member and includes at least one of a protrusion protruding in a direction along a movable direction of the movable member or a depression depressed in a direction along the movable direction on an outer side of the shock absorbing member.
    Type: Grant
    Filed: September 14, 2022
    Date of Patent: April 2, 2024
    Assignee: RICOH COMPANY, LTD.
    Inventors: Tetsumaru Fujita, Hidetaka Noguchi
  • Patent number: 11947414
    Abstract: An information processing system includes a plurality of apparatuses and an information processing apparatus. The plurality of apparatuses includes a first apparatus and a second apparatus. The first apparatus includes a first communication unit and a switching unit. The first communication unit is configured to receive screen information about the second apparatus sent from the information processing apparatus. The screen information is displayed on a first application program in the first apparatus. The switching unit is configured to switch a screen of a second application program to the screen of the first application program to display the screen of the first application program in response to receipt of the screen information by the first communication unit, when the first apparatus displays the screen of the second application program. The information processing apparatus is configured to communicate with the plurality of apparatuses.
    Type: Grant
    Filed: November 12, 2021
    Date of Patent: April 2, 2024
    Assignee: Ricoh Company, Ltd.
    Inventor: Tadashi Tenda
  • Patent number: 11947296
    Abstract: A nip forming device includes an endless film and a pressure rotator that presses against a heater via the endless film. A driver drives and rotates the pressure rotator to cause the pressure rotator to drive and rotate the endless film. A controller controls the driver to drive and rotate the pressure rotator, based on a temperature of the pressure rotator, that is detected by a detector, in a forward direction to convey a conveyed object and to interrupt forward rotation of the pressure rotator. In response to a determination that the temperature of the pressure rotator is higher than a predetermined temperature when a job of the nip forming device is finished, the controller controls the driver to drive and rotate the pressure rotator for a predetermined time in a backward direction opposite to the forward direction and to interrupt backward rotation of the pressure rotator.
    Type: Grant
    Filed: January 6, 2023
    Date of Patent: April 2, 2024
    Assignee: Ricoh Company, Ltd.
    Inventors: Hiroyuki Shimada, Tomoya Adachi, Yukimichi Someya, Yuusuke Furuichi
  • Patent number: 11945222
    Abstract: A film forming method includes applying liquids to a material by discharging the liquids from each of a plurality of discharge heads disposed along a transport direction of the material. Each of the discharge heads has a plurality of liquid discharge nozzles disposed along a direction intersecting the transport direction. The applying includes applying at least a first liquid, a second liquid, and a third liquid from each of the plurality of discharge heads. The second liquid is applied to a position substantially equal to a position to which the first liquid is applied along a width direction. The third liquid is applied to an intermediate position between the position to which the first liquid is applied and the position to which the second liquid is applied along the transport direction, the intermediate position being different from the position to which the first liquid is applied along the width direction.
    Type: Grant
    Filed: January 24, 2022
    Date of Patent: April 2, 2024
    Assignee: RICOH COMPANY, LTD.
    Inventor: Tetsuto Ueda
  • Patent number: 11947295
    Abstract: A heating device includes a heater, a rotator, and a pressure rotator. The heater includes resistive heat generators forming a heat generation area and has a separation area formed by the resistive heat generators. The pressure rotator includes a first region and a second region. The first region faces the heater in a range of 20 mm from a center position of the heat generation area toward an end thereof in the arrangement direction. The second region faces the heater in at least a part of a range of 30 mm from a center position of the separation area toward the center position of the heat generation area. An outer diameter of the pressure rotator increases from the center toward the end. The outer diameter of the second region increases at an increasing rate larger than an increasing rate of the outer diameter of the first region.
    Type: Grant
    Filed: June 14, 2022
    Date of Patent: April 2, 2024
    Assignee: Ricoh Company, Ltd.
    Inventor: Hitoshi Fujiwara
  • Patent number: 11947184
    Abstract: A lens barrel includes: a variable-power optical system including a focus lens group; a focus actuator configured to move the focus lens group supported by a support forward or backward in a direction of the optical axis to change a shooting distance; and a moving unit configured to, in response to receiving a driving force for changing a zoom magnification, move a position of the focus lens group in the direction of the optical axis to a position corresponding to the changed zoom magnification. The moving unit is configured to move the focus lens group in the direction of the optical axis by the driving force such that a change in a shooting distance due to a change in the zoom magnification is within a predetermined tolerance when the focus lens group is at a position corresponding to the minimum shooting distance, at every zoom magnification.
    Type: Grant
    Filed: March 12, 2020
    Date of Patent: April 2, 2024
    Assignee: RICOH COMPANY, LTD.
    Inventors: Takahiro Kobayashi, Tomoaki Kobayashi, Takahiro Nakayama
  • Patent number: 11947287
    Abstract: A sheet separation device separates a non-bonding portion of a two-ply sheet in which two sheets are overlapped and bonded together at one end of the two-ply sheet. The sheet separation device includes a separator that includes a first separator and a second separator. The first separator is inserted into a gap between the two sheets of the two-ply sheet. The second separator is inserted between the two sheets at said another end of the two-ply sheet that is opposite to the one end of the two-ply sheet and moves in a width direction of the two-ply sheet after the first separator is inserted into the gap and relatively moves from the one end to said another end.
    Type: Grant
    Filed: October 12, 2022
    Date of Patent: April 2, 2024
    Assignee: RICOH COMPANY, LTD.
    Inventors: Wataru Takahashi, Tomohiro Furuhashi, Shinya Monma, Yoshito Suzuki, Joji Akiyama, Yohsuke Haraguchi, Sho Asano, Wataru Nozaki
  • Patent number: 11947113
    Abstract: A movable device includes a movable part including a mirror unit; a torsion bar with one end coupled to the movable part; a first cantilever part coupled to the other end of the torsion bar; a second cantilever part with one end coupled to a coupling portion of the first cantilever part; a stationary part coupled to the other end of the second cantilever part; and a driver configured to deform the second cantilever part. A width of the coupling portion of the first cantilever part, to which the second cantilever part is coupled, is narrower than a width of the second cantilever part in a width direction of the coupling portion.
    Type: Grant
    Filed: September 17, 2020
    Date of Patent: April 2, 2024
    Assignee: RICOH COMPANY, LTD.
    Inventor: Wataru Yokota
  • Patent number: 11945677
    Abstract: An image forming apparatus includes a sheet conveyance device; an image forming device including a sheet conveyance roller and a pressure roller; a memory; and a controller. The memory stores profile data indicating variation in conveyance amount in a circumferential direction due to eccentricity of the conveyance roller. The controller calculates, in intermittent conveyance processing, a correction value based on corresponding profile data for each of positions included in a width of an image to be formed in next image forming processing, the correction value being a difference between a predetermined conveyance amount and an actual conveyance amount; corrects a reference amount of rotation by a representative value of calculated correction values to calculate a corrected amount of rotation, the reference amount being an ideal amount of rotation of the conveyance roller that conveys a sheet by the predetermined conveyance amount; and rotates the conveyance roller by the corrected amount.
    Type: Grant
    Filed: November 17, 2021
    Date of Patent: April 2, 2024
    Assignee: RICOH COMPANY, LTD.
    Inventor: Suguru Masunaga
  • Patent number: 11948343
    Abstract: Disclosed are an image matching method and apparatus. The image matching method is inclusive of steps of obtaining a panoramic image of at least one subspace in a 3D space and a 2D image of the 3D space; acquiring a 2D image of the at least one subspace in the 3D space; performing 3D reconstruction on the panoramic image of the at least one subspace, and procuring a projection image corresponding to the panoramic image of the at least one subspace; and attaining a matching relationship between the panoramic image of the at least one subspace and the 2D image of the at least one subspace, and establishing an association relationship between the panoramic image of the at least one subspace and the 2D image of the at least one subspace between which the matching relationship has been generated.
    Type: Grant
    Filed: July 21, 2021
    Date of Patent: April 2, 2024
    Assignee: Ricoh Company, Ltd.
    Inventors: Haijing Jia, Hong Yi, Liyan Liu, Wei Wang
  • Patent number: 11949565
    Abstract: A communication management apparatus includes circuitry that manages first communication in which a terminal apparatus transmits content data to another terminal apparatus via a relay apparatus. The circuitry receives, from the terminal apparatus, a determination of whether the terminal apparatus is communicable with the another terminal apparatus through second communication that bypasses the relay apparatus. Based on a determination that the terminal apparatus is communicable with the another terminal apparatus through the second communication, the circuitry restricts a communication bandwidth for the first communication of the another terminal apparatus determined to be communicable with the terminal apparatus through the second communication.
    Type: Grant
    Filed: October 14, 2022
    Date of Patent: April 2, 2024
    Assignee: RICOH COMPANY, LTD.
    Inventor: Takeshi Horiuchi
  • Patent number: 11950503
    Abstract: An organic material represented by General Formula (1): where, in General Formula (1), R1 is an alkyl group having 6 carbon atoms or more but 20 carbon atoms or less; n is an integer of from 1 through 3; X1 to X4 are each a hydrogen atom or a fluorine atom; and Z is a compound represented by General Formula (2), (3), or (4) below: where, in General Formulae (2) to (4), R2, R3, and R4 are each an alkyl group having 6 carbon atoms or more but 20 carbon atoms or less; and Y is an oxygen atom or a sulfur atom.
    Type: Grant
    Filed: February 20, 2019
    Date of Patent: April 2, 2024
    Assignees: Ricoh Company, Ltd., KYUSHU UNIVERSITY, NATIONAL UNIVERSITY CORPORATION
    Inventors: Ryota Arai, Takuma Yasuda, Seiichi Furukawa, Narumi Sato
  • Patent number: 11945229
    Abstract: A liquid discharge apparatus includes a head configured to discharge a liquid, and a liquid container configured to contain the liquid to be supplied to the head. The liquid container includes an inlet from which the liquid is supplied to the liquid container, a first lid configured to cover and openably close the inlet, the first lid having a first fitting part fittable to a first key detachably attached to a refill bottle containing the liquid.
    Type: Grant
    Filed: March 16, 2022
    Date of Patent: April 2, 2024
    Assignee: RICOH COMPANY, LTD.
    Inventors: Kenta Takahashi, Takashi Watanabe, Takeyuki Kobayashi, Kazuyoshi Matsumoto
  • Patent number: 11947851
    Abstract: An approach is provided for configuring printing devices. A configuration manager maintains configuration data for a printing device and provides the configuration data to a configuration agent executing on the printing device. The configuration agent applies the settings specified by the configuration data to the printing device and generates configuration identification data that uniquely identifies the settings. The configuration agent uses the configuration identification data to determine whether the current configuration of the printing device has changed. If so, then the configuration agent acquires and applies configuration data from the configuration manager.
    Type: Grant
    Filed: February 28, 2020
    Date of Patent: April 2, 2024
    Assignee: RICOH COMPANY, LTD.
    Inventor: Tom Haapanen