Patents Assigned to Ricoh Company, Ltd.
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Patent number: 11970000Abstract: A liquid discharge apparatus includes liquid discharge units, a first image capturing unit, a second image capturing unit, a detection unit, and a discharge determination unit. The liquid discharge units include a first liquid discharge unit and a second liquid discharge unit downstream from the first discharge unit in a moving direction of a recording medium. The first capturing unit captures a first image of the medium at a position corresponding to the first discharge unit. The second capturing unit captures a second image of the medium at a position corresponding to the second discharge unit. The detection unit detects a movement amount of the medium in the moving direction, based on the first image and the second image. The discharge determination unit determines a discharge timing of the second discharge unit with respect to discharge of the first discharge unit, based on the movement amount and a clock signal.Type: GrantFiled: November 16, 2021Date of Patent: April 30, 2024Assignee: Ricoh Company, Ltd.Inventors: Masahiro Mizuno, Mitsunobu Gohda
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Patent number: 11971675Abstract: An image forming apparatus includes image bearers, motors, a reference position detector, and processing circuitry. The circuitry senses a density of a toner image on each bearer; forms an image pattern and senses, based on a detection result of the detector and a sensing result of the density, density unevenness in a rotation cycle and a phase of the density unevenness with respect to a rotational position reference of each bearer; calculates a target phase based on the phase sensed; calculates a relative phase difference based on a rotational position and the target phase of each bearer; selects, as a reference image bearer, an image bearer having a minimum phase correction value, based on a calculation result of the difference; and controls the rotational position of each of the other image bearers with respect to the reference image bearer to the phase correction value, with the motors being driven.Type: GrantFiled: November 29, 2022Date of Patent: April 30, 2024Assignee: Ricoh Company, Ltd.Inventors: Masashi Kasamai, Koji Kiryu, Masahiro Ashikawa, Jumpei Yamaguchi, Kanji Ubukata, Nagisa Nakamura
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Patent number: 11970662Abstract: An electrochromic element including: a first electrode; a second electrode disposed to face the first electrode with a gap between the first electrode and the second electrode; a first electrochromic layer disposed on or above the first electrode, including conductor or semiconductor nano-structures and an electrochromic compound; and an electrolyte layer including an electrolyte, disposed between the first electrochromic layer and the second electrode, wherein the electrochromic compound is a compound represented by General Formula 1, and an anion of the electrolyte is a monovalent anion having oxidation potential higher than reduction potential of a dication of General Formula 1 by 3.1 V or greater, where X? is a monovalent anion having oxidation potential higher than reduction potential of the dication of General Formula 1 by 3.Type: GrantFiled: July 29, 2020Date of Patent: April 30, 2024Assignee: RICOH COMPANY, LTD.Inventors: Fuminari Kaneko, Daisuke Goto, Masato Shinoda, Ryo Kawamura, Naru Tanaka, Tohru Yashiro, Mamiko Inoue, Naoki Ura
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Patent number: 11971537Abstract: A light deflection device includes a substrate including a planar portion and a recess; a spacer member disposed at a bottom of the recess; a supporting section disposed on the spacer member; a movable part rotatably supported by the supporting section and having a reflecting surface configured to reflect light at a height equal to or higher than a height of the planar portion; and a light transmissive member disposed on the planar portion and covering the movable part.Type: GrantFiled: October 2, 2019Date of Patent: April 30, 2024Assignee: Ricoh Company, Ltd.Inventor: Kazuhiko Adachi
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Patent number: 11970622Abstract: Provided is an active-energy-ray-curable composition including: a polymerizable monomer having static surface tension of 40 mN/m or greater at 25 degrees C., a content of the polymerizable monomer being 15% by mass or less relative to total amount of the active-energy-ray-curable composition; an organic pigment serving as a colorant, the organic pigment being contained in 2% by mass or greater relative to total amount of the active-energy-ray-curable composition; and a dispersant having amine value of 5 mgKOH/g or greater but 35 mgKOH/g or less, amine value being greater than acid value of the dispersant, the dispersant being contained in 15% by mass or greater but 70% by mass or less relative to mass of the organic pigment, wherein the active-energy-ray-curable composition is substantially free of a surfactant, and wherein a water content in the active-energy-ray-curable composition is 500 ppm by mass or greater but 3,000 ppm by mass or less.Type: GrantFiled: September 26, 2019Date of Patent: April 30, 2024Assignee: RICOH COMPANY, LTD.Inventor: Hiroki Kobayashi
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Patent number: 11970012Abstract: The inkjet printing device includes a dark ink container containing a dark ink of a color, a light ink container containing a light ink of the color, a dark ink discharging nozzle group for discharging the dark ink, and a light ink discharging nozzle group for discharging the light ink, wherein the light ink discharging group is disposed upstream of the dark ink discharging group in a sub-scanning direction, wherein the following Relationship 1 is satisfied: 10/100?a ratio of a pigment content in the light ink to a pigment content in the dark ink?40/100 Relationship 1.Type: GrantFiled: September 9, 2022Date of Patent: April 30, 2024Assignee: RICOH COMPANY, LTD.Inventor: Ken Hasegawa
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Patent number: 11969987Abstract: A contacting member contacts a region of a contacted member to which a liquid composition has been applied. The contacting member has a substrate and a fluororesin fiber layer containing a fluororesin fiber. One side of the fluororesin fiber layer is directly or indirectly fixed to the substrate and another side of the fluororesin fiber layer contacts the contacted member. A ratio X/Y is less than 1.00, wherein X is a presence ratio of the fluororesin fiber in the fluororesin fiber layer on the side which is directly or indirectly fixed to the substrate and Y is a presence ratio of the fluororesin fiber in the fluororesin fiber layer on the other side which contacts the contacted member.Type: GrantFiled: February 17, 2020Date of Patent: April 30, 2024Assignee: RICOH COMPANY, LTD.Inventors: Yuuki Mizutani, Tomohiro Tamai
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Patent number: 11970019Abstract: An envelope processing apparatus that inserts an enclosure into an envelope includes an envelope conveyor, a flap opener, an enclosure pusher, and circuitry. The envelope conveyor extends in a vertical direction and conveys the envelope to an enclosing position via an envelope conveyance passage as a passage in which the envelope is conveyed. The flap opener opens a flap of the envelope. The enclosure pusher pushes the enclosure toward an opening of a body of the envelope conveyed to the enclosing position with the flap open. The circuitry changes a pushing amount of the enclosure into the envelope and adjusts the pushing amount based on the opening of the body of the envelope within a specified range from an inside to an outside of the body of the envelope.Type: GrantFiled: April 11, 2023Date of Patent: April 30, 2024Assignee: Ricoh Company, Ltd.Inventors: Nobuyoshi Suzuki, Michitaka Suzuki, Yuusuke Shibasaki, Takahiro Matsuda, Atsushi Shinoda, Shingo Yoshizawa, Takahiro Watanabe, Takuya Morinaga
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Patent number: 11971966Abstract: An information processing method includes: activating a linkage function from a service of a linkage source to a service of a linkage destination, in response to determining that both of the service of the linkage source and the service of the linkage destination are usable by the contract user; and deactivating use of the linkage function for a login user managed by the contract user, in response to determining that the login user does not have use-permission for using the service of the linkage destination.Type: GrantFiled: July 30, 2021Date of Patent: April 30, 2024Assignee: RICOH COMPANY, LTD.Inventor: Takayori Nishida
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Patent number: 11971674Abstract: A heating device includes a rotator, a heater, a heater holder, and a first high thermal conduction member. The heater includes a base and a plurality of heat generators being arranged on the base and including neighboring heat generators. The heater has a gap area between the neighboring heat generators. The first high thermal conduction member has a higher thermal conductivity than the base and faces the gap area.Type: GrantFiled: January 13, 2022Date of Patent: April 30, 2024Assignee: RICOH COMPANY, LTD.Inventors: Shigeo Nanno, Yasunori Ishigaya, Takahiro Imada, Takumi Waida, Daisuke Hirano
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Patent number: 11973639Abstract: A system, a method, and a program stored on a recording medium are provided each of which receives a first setting and a second setting input to a terminal apparatus, the first setting indicating a transmission destination of a notification based on information related to health of a user obtained through measurement by a measurement apparatus managed by a health check system, the second setting indicating a notification condition on which the notification is transmitted to the transmission destination; receives the information related to health of the user obtained through measurement by the measurement apparatus and transmitted from the measurement apparatus to the health check system; and transmits the notification based on the information related to health of the user to the transmission destination indicated by the first setting, in response to the information related to health of the user satisfying the notification condition indicated by the second setting.Type: GrantFiled: December 16, 2022Date of Patent: April 30, 2024Assignee: Ricoh Company, Ltd.Inventor: Shohei Arai
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Patent number: 11970625Abstract: A liquid composition contains a coloring material, an organic solvent, a compound represented by Chemical Formula 1 below, a resin, and water, wherein the contact angle of water against a liquid composition film formed by attaching the liquid composition to a non-permeable printing medium is 60 degrees or less, where n represents an integer of from 4 to 10.Type: GrantFiled: June 10, 2022Date of Patent: April 30, 2024Assignee: Ricoh Company, Ltd.Inventors: Masaki Kudo, Yukiko Ishijima, Akiko Bannai
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Patent number: 11973905Abstract: An information processing system, an information processing method, a non-transitory recording medium, and an information processing apparatus. The information processing system captures a plurality of images at respective locations each associated with a location where the object is managed, or a process performed on the object to be managed, generates print data of a second slip associated with the plurality of objects to be managed, the second slip being different from a first slip associated with each of the plurality of objects, and controls a display to display, based on detection of the printed second slip from the image captured by the imaging device, the plurality of objects to be managed associated with the printed second slip, as being placed at the location or the process associated with the imaging device that captured the image of the second slip.Type: GrantFiled: March 6, 2023Date of Patent: April 30, 2024Assignee: Ricoh Company, Ltd.Inventors: Hajime Kawasaki, Makoto Aoki
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Patent number: 11973919Abstract: A printing system is disclosed. The printing system includes at least one physical memory device to store ink model estimation logic and one or more processors coupled with the at least one physical memory device to execute the ink model estimation logic to receive a first plurality of ink deposition curves each associated with one of a plurality of primary color inks of a print system, wherein the associated primary color inks in combination represent a first secondary color, receive a color space mapping profile for the print system, wherein the color space mapping profile characterizes a relationship between a first color space and a printer color space of the print system and generate a color space ink model for the first secondary color based on the first plurality of ink deposition curves and the color space mapping profile, wherein the color space ink model represents a relationship between each of a plurality of parameters of the first color space and ink deposition.Type: GrantFiled: March 4, 2022Date of Patent: April 30, 2024Assignee: Ricoh Company, Ltd.Inventors: Mikel Stanich, Pallavi Premkumar, James Chauvin, Nikita Gurudath
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Patent number: 11971854Abstract: An information processing apparatus, an information processing system, an information processing method, and a non-transitory recording medium. The information processing apparatus receives a plurality of files, generates screen information for displaying a first list screen on a display, the first list screen presenting, for each of the plurality of files, a name and a time of last use of the file, and further presenting a thumbnail image of at least one file of the plurality of files in a case the at least one file is an image file, stores in one or more memories, the plurality of files and the thumbnail image of the at least one file being the image file, and transmits the screen information of the first list screen in response to a request.Type: GrantFiled: December 21, 2022Date of Patent: April 30, 2024Assignee: Ricoh Company, Ltd.Inventor: Taku Yamawaki
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Patent number: 11973904Abstract: A signal processing device includes a data writing unit, a channel number converting unit, and a plurality of serial data transferring unit. The data writing unit is configured to write data of m channels into a memory. The channel number converting unit is configured to output the data read from the memory as data of n channels, where m is larger than n. The plurality of serial data transferring unit is configured to transfer the data of the n channels to a processing device in a subsequent stage.Type: GrantFiled: May 20, 2022Date of Patent: April 30, 2024Assignee: RICOH COMPANY, LTD.Inventors: Shinji Sakaguchi, Tohru Kanno, Masamoto Nakazawa
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Publication number: 20240131840Abstract: A liquid discharge apparatus includes a liquid discharge head and a head drive controller to output a drive waveform including one pulse or two or more pulses selected according to a droplet size. In a case that the drive waveform includes the two or more pulses, the drive waveform includes a final pulse at an end of the two or more pulses. The final pulse includes a first expansion waveform, a first contraction waveform element, a second expansion waveform element, a second contraction waveform element, and a third expansion waveform element. A time period from a start of the first contraction waveform element to a start of the second expansion waveform element is less than 0.5 Tc. A time period from the start of the first contraction waveform element to a start of the second contraction waveform element is within a range from 0.5 Tc to 0.6 Tc.Type: ApplicationFiled: October 10, 2023Publication date: April 25, 2024Applicant: Ricoh Company, Ltd.Inventors: Hayato Watanabe, Koji Nagai
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Publication number: 20240136793Abstract: A surface-emitting laser includes an active layer; multiple reflectors sandwiching the active layer; and an electrode pair connected to a power supply, through which a current is injected into the active layer. The surface-emitting laser emits at least one laser beam during a current injection period when the current injected into the active layer through the electrode pair during the current injection period is a first current and emits at least one laser beam during a current decrease period when the current injected into the active layer through the electrode pair during the current injection period is a second current exceeding the first current. The current decrease period is after the current injection period. The current injected into the active layer during the current decrease period is lower than the current injected into the active layer during the current injection period.Type: ApplicationFiled: October 10, 2023Publication date: April 25, 2024Applicant: Ricoh Company, Ltd.Inventors: Naoto Jikutani, Kazuhiro Harasaka, Ryoichiro Suzuki, Yutaka Maita, Naofumi Ueno
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Publication number: 20240131553Abstract: A liquid application apparatus includes an applicator, a maintenance device, a conveyor, a first conveyance path, and a second conveyance path. The applicator applies a liquid to an object. The maintenance device maintains an applying condition of the liquid by the applicator. The conveyor conveys the object and the maintenance device. The object is to be conveyed along the first conveyance path. The maintenance device is to be conveyed along the second conveyance path. The applicator includes a nozzle surface on which a plurality of nozzles to discharge the liquid is formed. The maintenance device includes a wiper to wipe the nozzle surface. The first conveyance path overlaps with the second conveyance path at least at a portion at which the first conveyance path passes by the applicator.Type: ApplicationFiled: October 15, 2023Publication date: April 25, 2024Applicant: Ricoh Company, Ltd.Inventors: Yohsuke Konishi, Takayuki Niihara, Takashi Fujita, Yukihiro Wakabayashi
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Publication number: 20240137463Abstract: A communication management device includes circuitry that: receives captured image data of a captured image obtained by an image capturing device and time-series information representing a date and time associated with predetermined area information, the predetermined area information representing a predetermined area and is transmitted by a communication terminal that displays a predetermined area image of the predetermined area; and transmits, to the communication terminal, converted predetermined area image data obtained through perspective projection conversion based on the received captured image data and the received time-series information.Type: ApplicationFiled: December 6, 2023Publication date: April 25, 2024Applicant: Ricoh Company, Ltd.Inventors: Kenichiro MORITA, Hidekuni ANNAKA, Tomonori AIKAWA