Patents Assigned to Ricoh Company
  • APPARATUS, SYSTEM, AND NON-TRANSITORY RECORDING MEDIUM
    Publication number: 20240283875
    Abstract: An apparatus includes a display, and circuitry to receive operation from an operator, determine an attribute of the operator, and display on the display a notification content relating to a state of a consumable that is used in the apparatus in accordance with the attribute of the operator.
    Type: Application
    Filed: February 20, 2024
    Publication date: August 22, 2024
    Applicant: Ricoh Company, Ltd.
    Inventor: Ken Kubota
  • FLOW-THROUGH PRINTHEAD
    Publication number: 20240278560
    Abstract: Printheads that jet print fluids. In an embodiment, a flow-through printhead comprises a plurality of jetting channels arranged in a first row and a second row generally in parallel along a length of the printhead, where each of the jetting channels includes a diaphragm, a pressure chamber, and a nozzle configured to jet a print fluid. The flow-through printhead further comprises a first manifold fluidly coupled to the jetting channels in the first row, and a second manifold fluidly coupled to the jetting channels in the first row. The first manifold and the second manifold are disposed on opposite sides of the first row with the second manifold disposed in an intermediate region between the first row and the second row.
    Type: Application
    Filed: February 16, 2023
    Publication date: August 22, 2024
    Applicant: Ricoh Company, Ltd.
    Inventor: Nasser Budraa
  • FLUID MIXERS IN JETTING CHANNELS OF A PRINTHEAD
    Publication number: 20240278565
    Abstract: Printheads that jet print fluids. In an embodiment, a printhead comprises a plurality of jetting channels, where each jetting channel includes a diaphragm, a pressure chamber, and a nozzle configured to jet a print fluid. The printhead further comprises a manifold fluidly coupled to the jetting channels, where each jetting channel includes a channel fluid passage that fluidly couples the pressure chamber to the manifold. The printhead further comprises an intra-channel fluid mixer disposed at the channel fluid passage, and configured to cause a circular rotation of the print fluid that flows between the pressure chamber and the manifold through the channel fluid passage.
    Type: Application
    Filed: February 16, 2023
    Publication date: August 22, 2024
    Applicant: Ricoh Company, Ltd.
    Inventor: Nasser Budraa
  • IMAGE FORMING APPARATUS AND PRINT MEDIUM
    Publication number: 20240280927
    Abstract: An image forming apparatus includes a conductive medium, an applying device, and a developing device. The applying device applies conductive liquid to a surface of the conductive medium to form an invisible image. The developing device adheres charged particles to the invisible image formed on the surface of the conductive medium to form a visible image.
    Type: Application
    Filed: January 25, 2024
    Publication date: August 22, 2024
    Applicant: Ricoh Company, Ltd.
    Inventors: Shintaro YAMADA, Hiroaki KATOH, Akihiro KAWASAKI
  • PASSIVE MIXER IN JETTING CHANNELS OF A PRINTHEAD
    Publication number: 20240278584
    Abstract: Printheads that jet print fluids. In an embodiment, a printhead comprises a plurality of jetting channels, where each jetting channel of the plurality includes a diaphragm, a pressure chamber, and a nozzle configured to jet a print fluid. The printhead further comprises one or more intra-channel passive mixers that project from one or more vertical side walls of the jetting channel into a longitudinal flow path of the print fluid along a length of the jetting channel.
    Type: Application
    Filed: February 16, 2023
    Publication date: August 22, 2024
    Applicant: Ricoh Company, Ltd.
    Inventor: Nasser Budraa
  • INFORMATION PROCESSING APPARATUS, INFORMATION PROCESSING SYSTEM, INFORMATION PROCESSING METHOD, AND RECORDING MEDIUM
    Publication number: 20240283874
    Abstract: An information processing apparatus includes circuitry that disables an operation on a screen displayed on a display, and switches display of the screen in accordance with an urgency level of an error in response to occurrence of the error after the operation is disabled.
    Type: Application
    Filed: January 17, 2024
    Publication date: August 22, 2024
    Applicant: Ricoh Company, Ltd.
    Inventors: Taroh Futatsuya, Masatoshi Yanase
  • ACTIVE MIXER IN JETTING CHANNELS OF A PRINTHEAD
    Publication number: 20240278583
    Abstract: Printheads that jet print fluids. In an embodiment, a printhead comprises a plurality of jetting channels. Each jetting channel of the plurality includes a diaphragm, a pressure chamber, and a nozzle configured to jet a print fluid, and further includes one or more intra-chamber active mixers disposed in the pressure chamber. An intra-chamber active mixer comprises a cantilever having a connected end rigidly connected to a vertical side wall of the pressure chamber, and a free end that is free to move.
    Type: Application
    Filed: February 16, 2023
    Publication date: August 22, 2024
    Applicant: Ricoh Company Ltd.
    Inventor: Nasser Budraa
  • Information processing apparatus, computer-readable medium, and information processing method
    Patent number: 12066463
    Abstract: An information processing apparatus includes an extraction unit, a determination unit, a display control unit, and a display unit. The extraction unit is configured to extract, by predetermined pattern matching, candidate peaks in a certain arbitrary period of time from among at least one or more pieces of waveform data. The determination unit is configured to determine, from among the candidate peaks of the waveform data, a single peak based on a score related to the pattern matching. The display control unit is configured to output display information for displaying a position of the peak. The display unit is configured to display the display information.
    Type: Grant
    Filed: July 20, 2022
    Date of Patent: August 20, 2024
    Assignee: RICOH COMPANY, LTD.
    Inventor: Miyako Asai
  • Light-source device, image projection apparatus, and light-source optical system
    Patent number: 12066752
    Abstract: A light-source device includes an excitation light source to emit first color light; an optical member having a reflecting surface to reflect the first color light; a wavelength conversion unit including a wavelength conversion member on which the first color light reflected by the optical member is incident, the wavelength conversion member to convert at least part of the first color light into second color light having a wavelength different from a wavelength of the first color light and emit the second color light; and a light condensing element to condense the first color light emitted from the wavelength conversion unit. A straight line including a first optical path from a center of a flux of light rays emitted from the excitation light source, to the center of the first color light on the reflecting surface does not intersect with a light flux condensed by the light condensing element.
    Type: Grant
    Filed: October 29, 2020
    Date of Patent: August 20, 2024
    Assignee: RICOH COMPANY, LTD.
    Inventors: Kazuhiro Fujita, Kasumi Nakamura, Yohei Takano
  • Liquid discharge apparatus
    Patent number: 12064962
    Abstract: A liquid discharge apparatus includes: a liquid discharge head configured to discharge a liquid onto a printing medium to form an image on the printing medium; a conveyor configured to convey the printing medium to the liquid discharge head in a conveyance direction; a carriage mounting the liquid discharge head, the carriage configured to move the liquid discharge head in a first direction orthogonal to the conveyance direction; and a controller configured to calculate a control parameter to shift a printing position of the liquid discharge head in at least one of the first direction or the conveyance direction for each time the conveyor conveying the printing medium.
    Type: Grant
    Filed: January 5, 2023
    Date of Patent: August 20, 2024
    Assignee: RICOH COMPANY, LTD.
    Inventor: Norikazu Yanase
  • Liquid discharge device, liquid discharge apparatus, and liquid discharge head
    Patent number: 12064970
    Abstract: A liquid discharge device includes a liquid discharge head and a head tank. The head tank stores liquid to be supplied to the liquid discharge head. The head tank includes a body, a film, and a cover. The body includes a hole. The film covers the hole and includes a fixed portion fixed to the body. The cover contacts the film from an outer surface of the film. The cover includes a fixing-side cover part to contact a portion adjacent to the fixing portion of the film. The fixing-side cover part includes a curved contact surface to contact the film.
    Type: Grant
    Filed: September 14, 2022
    Date of Patent: August 20, 2024
    Assignee: RICOH COMPANY, LTD.
    Inventor: Takaya Kubodera
  • Printed matter producing method and printed matter producing apparatus, and printed matter
    Patent number: 12064984
    Abstract: A printed matter producing method includes forming an intermediate layer over a base material; applying an ink receiving layer forming liquid to the intermediate layer to form an ink receiving layer; and applying an ink to the ink receiving layer by an inkjet method to form an image. The viscosity of the ink receiving layer forming liquid at 25 degrees C. is 40 mPa·s or higher.
    Type: Grant
    Filed: June 1, 2020
    Date of Patent: August 20, 2024
    Assignee: Ricoh Company, Ltd.
    Inventors: Yuuma Usui, Mikiko Takada, Yukio Fujiwara
  • Screen sharing system, screen sharing method, and display apparatus
    Patent number: 12067325
    Abstract: A screen sharing system includes a first display apparatus including first circuitry; and a second display apparatus including second circuitry. Both of the first display apparatus and the second display apparatus display an input screen. The first circuitry of the first display apparatus is configured to receive first hand drafted input data that is input to the first display apparatus, and set an edit authority, of a user of the second display apparatus, for the first hand drafted input data. The second circuitry of the second display apparatus is configured to restrict editing of the first hand drafted input data based on the edit authority of the user set by the first display apparatus.
    Type: Grant
    Filed: January 25, 2023
    Date of Patent: August 20, 2024
    Assignee: RICOH COMPANY, LTD.
    Inventor: Daiki Nakamura
  • Wiping device, liquid discharging device, and wiping method
    Patent number: 12064968
    Abstract: A wiping device includes a wiping member configured to wipe a nozzle surface of a discharging head configured to discharge a liquid composition from nozzles formed on the nozzle surface. The wiping member contains fiber with projections present in a cross section perpendicular to an axis of the fiber and continuous in a direction of the axis of the fiber.
    Type: Grant
    Filed: March 17, 2021
    Date of Patent: August 20, 2024
    Assignee: Ricoh Company, Ltd.
    Inventors: Takumi Atake, Yohta Sakon
  • Liquid discharge head and liquid discharge apparatus
    Patent number: 12064971
    Abstract: A liquid discharge head includes a first head tank configured to store a liquid, a first intermediate chamber storing the liquid flowing from the first head tank, a second intermediate chamber storing the liquid flowing from the first intermediate chamber in a flow direction of the liquid, a second head tank storing a liquid flowing from the second intermediate chamber, a first communicating part communicating with the first head tank and the first intermediate chamber, a second communicating part communicating with the second head tank and the second intermediate chamber, and a discharge part configured to discharge a liquid supplied from the first intermediate chamber and the second intermediate chamber.
    Type: Grant
    Filed: June 27, 2022
    Date of Patent: August 20, 2024
    Assignee: Ricoh Company, Ltd.
    Inventors: Yuuta Aoki, Takeyuki Kobayashi
  • Conveyance mechanism and image forming apparatus
    Patent number: 12065325
    Abstract: A conveyance mechanism includes a lower conveyance guide below an inclined conveyance path having upward or downward inclinations with which a sheet material is to be conveyed, that guides a lower surface of the sheet material; an upper conveyance guide above the inclined conveyance path, that guides an upper surface of the sheet-shaped material, the upper conveyance guide being openable and closable about a rotation shaft, which is on a side of the inclined conveyance path in a direction of a width of the inclined conveyance path to extend along the inclined conveyance path; and a first urging member to urge a portion of the upper conveyance guide away from the rotation shaft in the direction of the width of the inclined conveyance path toward the rotation shaft, the portion of the upper conveyance guide being at an upper end of the upper conveyance guide in an inclined direction.
    Type: Grant
    Filed: November 30, 2022
    Date of Patent: August 20, 2024
    Assignee: Ricoh Company, Ltd.
    Inventor: Hideki Tobinaga
  • Resin composition, molded article, electronic component, and electronic device
    Patent number: 12065561
    Abstract: A resin composition is provided that comprises a resin and a phosphorus-based flame retardant. The resin includes a ?-1,3-glucan derivative resin having a main chain having a structure represented by the following structural formula (1): where each of Rs is independently a hydrogen atom or an alkylcarbonyl group, at least one of Rs is an alkylcarbonyl group, and n is a natural number. The phosphorus-based flame retardant has an average particle diameter of 5 ?m or less in the resin.
    Type: Grant
    Filed: June 3, 2021
    Date of Patent: August 20, 2024
    Assignee: Ricoh Company, Ltd.
    Inventors: Mitsuyo Matsumoto, Yoshitaka Sekiguchi, Natsuki Koike
  • Sheet conveying device and image forming system incorporating the sheet conveying device
    Patent number: 12065326
    Abstract: A sheet conveying device includes a sheet stacker, an air blower, a guide, and a holder. The sheet stacker stacks sheets. The air blower blows air to the sheets on the sheet stacker. The guide is disposed facing an uppermost sheet of the sheets on the sheet stacker. The holder holds the guide and has a groove along which the guide is inserted. The groove has a plurality of direction switching portions at each of which the guide changes a direction of movement when the groove receives the guide.
    Type: Grant
    Filed: April 8, 2022
    Date of Patent: August 20, 2024
    Assignee: Ricoh Company, Ltd.
    Inventor: Takashi Ebihara
  • Data processing device, image reading apparatus, image forming apparatus, and method for processing data
    Patent number: 12066854
    Abstract: A data processing device comprises: a data receiver to receive data to be processed, an external clock, and a unit control signal determining a processing unit for the data to be processed from an outside, the data receiver including a PLL circuit to receive the external clock; a clock abnormality detector to operate based on a clock of a system different from a system of the external clock and detect abnormality of the external clock based on a lock signal output from the PLL circuit; and a data processing controller to control processing of the data. When abnormality of the external clock is detected, the data processing controller stops taking in the data to be processed, and when the external clock becomes normal again, take in the unit control signal and resume taking in the data to be processed.
    Type: Grant
    Filed: November 20, 2020
    Date of Patent: August 20, 2024
    Assignee: RICOH COMPANY, LTD.
    Inventors: Hajime Tsukahara, Tomohiro Sasa
  • Fixing device including nip formation plate having a plurality of protruding portions and image forming apparatus incorporating same
    Patent number: 12066780
    Abstract: A fixing device includes an endless fixing rotator, a slide aid, a pressure rotator, a nip formation plate, a support, a heat source, and a reflector. The endless fixing rotator has flexibility. An inner circumferential surface of the fixing rotator slides over the slide aid. The pressure rotator contacts an outer circumferential surface of the fixing rotator. The nip formation plate is disposed inside the fixing rotator to contact the pressure rotator via the fixing rotator and the slide aid to form a nip between the fixing rotator and the pressure rotator. The nip formation plate has a thermal conductivity equal to or greater than 10 W/mK. The support supports the nip formation plate. The heat source is disposed inside the fixing rotator to heat the fixing rotator. The reflector reflects radiant heat from the heat source.
    Type: Grant
    Filed: April 11, 2023
    Date of Patent: August 20, 2024
    Assignee: RICOH COMPANY, LTD.
    Inventors: Shogo Nakamoto, Arinobu Yoshiura, Daisuke Inoue