Patents Examined by Huan H. Tran
  • Patent number: 10807373
    Abstract: In one example in accordance with the present disclosure, a fluid ejection device is described. The fluid ejection device includes a number of nozzles to eject fluid. Each nozzle includes a firing chamber to hold fluid, a nozzle orifice through which to dispense fluid, and an ejector disposed in the firing chamber to eject fluid through the nozzle orifice. The fluid ejection device also includes a particle detector to detect the presence of foreign particles within the fluid in the firing chamber.
    Type: Grant
    Filed: September 23, 2016
    Date of Patent: October 20, 2020
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Ning Ge, Steven J Simske, Daryl E Anderson, James Michael Gardner, Eric Martin
  • Patent number: 10807361
    Abstract: Provided are a liquid jetting head and a liquid jetting device that prevent contamination of a humidity sensor. The liquid jetting head and the liquid jetting device include a nozzle that jets a liquid; a humidity sensor that is disposed further inside than the nozzle face where the nozzle is disposed; an air intake port that is disposed on the same plane as the nozzle face; a connection passage that allows the air intake port and the humidity sensor to communicate with each other; and a contamination preventing part that prevents contamination of the humidity sensor.
    Type: Grant
    Filed: June 19, 2019
    Date of Patent: October 20, 2020
    Assignee: FUJIFILM Corporation
    Inventor: Norihisa Takada
  • Patent number: 10807370
    Abstract: A cap includes a lip portion, and an inner bottom wall and an atmosphere communication wall that, when an opening with the lip portion as an edge is covered by a member, form a recessed portion that forms a space with the member, the atmosphere communication wall being provided at a position between the opening and the inner bottom wall in a depth direction of the recessed portion, the atmosphere communication wall having a communication port of an atmosphere communication portion that opens the space to the atmosphere, the communication port being formed in the atmosphere communication wall toward the opening.
    Type: Grant
    Filed: November 11, 2019
    Date of Patent: October 20, 2020
    Assignee: Seiko Epson Corporation
    Inventors: Yuji Kanazawa, Masaaki Ando
  • Patent number: 10800192
    Abstract: An image forming apparatus includes a moving unit and a lifting and lowering mechanism. The moving unit is supported by a casing in an upwardly and downwardly moving manner. A fixed pully and a winding pully are provided in the casing. A movable pulley is provided in the moving unit. A wire is configured to be wound around the fixed pulley and the movable pulley. One end of the wire is fixed to the casing and the other end of the wire is fixed to the winding pulley. A rack is provided in the casing along an upper-and-lower direction. A pinion is provided in the moving unit and configured to be engaged with the rack. The winding pulley is rotated to wind and unwind the wire via the fixed pulley and the movable pulley, and the moving unit is lifted and lowered while the pinion being engaged with the rack.
    Type: Grant
    Filed: May 22, 2019
    Date of Patent: October 13, 2020
    Assignee: KYOCERA Document Solutions Inc.
    Inventors: Naoki Yamane, Toshinori Muraoka, Satoru Nakamura
  • Patent number: 10800185
    Abstract: A printing apparatus includes a printer with printing elements that print dots and a controller that controls the printer on the basis of input image data. The controller acquires a pre-correction printing density that is based on test pattern data, which includes a uniform array of pixels, and printing characteristics of a dot size of the printing elements. The controller calculates a target density by averaging the pre-correction printing density and offsets the target density so that the target density is equal to or greater than the pre-correction printing density. The controller calculates a correction gain of the printing elements on the basis of the ratio of the target density to the pre-correction printing density and controls the printer on the basis of the correction gain and the input image data.
    Type: Grant
    Filed: June 15, 2017
    Date of Patent: October 13, 2020
    Assignee: Kyocera Corporation
    Inventor: Yohei Funatsu
  • Patent number: 10800191
    Abstract: An image forming apparatus includes a head unit, a conveyance unit, a lifting and lowering mechanism, a drive source and a transmission mechanism. The head unit is provided with an inkjet head having a discharge opening through which an ink is discharged. The conveyance unit is supported in an upwardly and downwardly movable manner in directions close to and apart from the head unit from a lower side. The lifting and lowering mechanism is configured to lift and lower the conveyance unit. The drive source is configured to drive the lifting and lowering mechanism. The transmission mechanism is configured to transmit driving force from the drive source to the lifting and lowering mechanism. The transmission mechanism includes a warm gear, a warm wheel meshed with the warm gear and a resistance applying member configured to apply resistance to rotation of the warm gear.
    Type: Grant
    Filed: May 21, 2019
    Date of Patent: October 13, 2020
    Assignee: KYOCERA Document Solutions Inc.
    Inventors: Satoru Nakamura, Toshinori Muraoka, Naoki Yamane
  • Patent number: 10800180
    Abstract: A liquid circulation device includes a first liquid discharge head to discharge a liquid, a first supply channel to supply the liquid to the first liquid discharge head, a first collection channel to collect the liquid from the first liquid discharge head, a second liquid discharge head to discharge the liquid and disposed higher than the first liquid discharge head, a second supply channel to supply the liquid to the second liquid discharge head, a second collection channel to collect the liquid from the second liquid discharge head, a supply-side fluid restrictor disposed in the first supply channel to make a fluid resistance value of the first supply channel greater than a fluid resistance value of the second supply channel, and a collection-side fluid restrictor disposed in the second collection channel to make a fluid resistance value of the second collection channel greater than a fluid resistance value of the first collection channel.
    Type: Grant
    Filed: June 17, 2019
    Date of Patent: October 13, 2020
    Assignee: Ricoh Company, Ltd.
    Inventor: Ryuji Yoshida
  • Patent number: 10792938
    Abstract: A printing apparatus includes a first feeding part configured to feed print media from a first support part supporting the print media, a second feeding part configured to feed print media from a second support part supporting the print media, and a print head configured to print on the print media fed by the first feeding part or the second feeding part. Further, the printing apparatus includes a first conveying path where the print media fed by the first feeding part are conveyed to the print head, and a second conveying path where the print media fed by the second feeding part are conveyed to the print head. At least a part of the second feeding part protrudes in a predetermined spatial area within the first conveying path during a feed operation of feeding print media from the second support part.
    Type: Grant
    Filed: December 18, 2018
    Date of Patent: October 6, 2020
    Assignee: Canon Kabushiki Kaisha
    Inventors: Masakazu Tsukuda, Seiji Ogasawara, Takaaki Ishida, Shuichi Tokuda, Masaaki Matsuura, Kazuki Matsuo
  • Patent number: 10797240
    Abstract: An inkjet printing apparatus includes an ink jetting unit to jet ink to a substrate, a stage to movably support the substrate relative to the ink jetting unit, and a pair of air-conditioning units arranged at front and rear ends of the ink jetting unit in a direction in which the stage is moved, the air-conditioning units each including an air blowing unit and a suction unit.
    Type: Grant
    Filed: September 13, 2018
    Date of Patent: October 6, 2020
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Hansol Lee, Heungcheol Jeong, Myungsoo Huh, Dohun Lee, Ilseok Jeong
  • Patent number: 10792913
    Abstract: An inkjet printing apparatus includes a print head ejecting ink, a tank reserving ink to be supplied to the print head; and a joint unit being capable of connecting the print head and the tank to each other. The inkjet printing apparatus further includes a detecting unit detecting a position of the joint unit, which is moved by a drive source, with respect to the print head.
    Type: Grant
    Filed: March 27, 2019
    Date of Patent: October 6, 2020
    Assignee: Canon Kabushiki Kaisha
    Inventor: Atsushi Kohnotoh
  • Patent number: 10787008
    Abstract: Print apparatus is controlled to execute a print operation comprising a plurality of print sweeps onto a print zone of a print substrate and a corresponding plurality of print advances of the print substrate between successive print sweeps. Print apparatus is controlled to execute an intermediate cutting operation between a pre-cut print sweep and a successive post-cut print sweep of the plurality of print sweeps.
    Type: Grant
    Filed: June 20, 2017
    Date of Patent: September 29, 2020
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Leticia Rubio, Xavier Quintero Ruiz, Utpal Kumar Sarkar
  • Patent number: 10787001
    Abstract: An image forming apparatus including a polygon mirror that deflects a light beam, the image forming apparatus includes: an optical sensor arranged such that the light beam deflected by the polygon mirror enters the optical sensor; and a hardware processor that measures an output level of the optical sensor and calculates, as a remaining life of the polygon mirror, an operation time of the polygon mirror to when the output level becomes a threshold value in a case of assuming that the output level ongoingly changes at a rate of change over time that is a change amount of the output level per unit operation time of the polygon mirror, using the measured output level.
    Type: Grant
    Filed: March 7, 2019
    Date of Patent: September 29, 2020
    Assignee: Konica Minolta, Inc.
    Inventors: Yutaka Yamamoto, Tatsuya Eguchi, Shigetaka Kato, Taku Kimura
  • Patent number: 10786996
    Abstract: A liquid discharge head includes a channel section, and a driving section. The channel section supplies a liquid to a plurality of nozzles to discharge the liquid. The driving section causes the nozzles to discharge the liquid. The channel section includes an individual chamber to supply the liquid to the nozzles and a common chamber to supply the liquid to the individual chamber. A laminated portion of each of a plurality of plate-shaped components which are constituent components of the individual chamber does not have a cut-out portion in a portion corresponding to a bonding position of a damper member disposed between the individual chamber and the common chamber.
    Type: Grant
    Filed: March 15, 2019
    Date of Patent: September 29, 2020
    Assignee: Ricoh Company, Ltd.
    Inventor: Tomohiko Kohda
  • Patent number: 10780718
    Abstract: A liquid discharge apparatus includes a liquid discharge device, circuitry, and a curing device. The liquid discharge device is configured to discharge a liquid having a curing degree variable by a stimulation amount while relatively moving to a recording medium. The circuitry is configured to acquire surface roughness information indicating glossiness of a formed object formed on the recording medium and set a stimulation amount for the liquid based on the surface roughness information. The curing device is configured to stimulate the liquid discharged by the liquid discharge device based on the stimulation amount set by the circuitry to cure the liquid. The circuitry is configured to set, based on the surface roughness information, the stimulation amount for each region stimulated by the curing device in a same plane of the formed object.
    Type: Grant
    Filed: March 19, 2019
    Date of Patent: September 22, 2020
    Assignee: Ricoh Company, Ltd.
    Inventors: Aya Yamasawa, Manabu Arita, Toshihito Kamei, Shinichi Hatanaka
  • Patent number: 10780708
    Abstract: In a printer that drives by a ribbon motor (302), a winding axle that holds an ink ribbon positioned between a thermal head that performs a photographic printing operation with respect to a photographic medium conveyed along a sub-scanning direction and a platen that opposes the photographic print head with the photographic medium between the photographic print head and the platen, a flywheel (303) is coupled to a shaft of the ribbon motor (302), and a rotational force of the ribbon motor (302) is transmitted to the winding axle, via a worm gear (501) and a helical gear (502).
    Type: Grant
    Filed: February 14, 2019
    Date of Patent: September 22, 2020
    Assignees: CITIZEN WATCH CO., LTD., CITIZEN SYSTEMS JAPAN CO., LTD.
    Inventors: Masao Yoshizawa, Takeshi Yamazaki
  • Patent number: 10780703
    Abstract: A channel control apparatus includes: a diaphragm portion displaceable between an opening position to open a channel and a closing position to close the channel; an abutment portion for moving in a first direction and a second direction opposite to the first direction by a driving source; and a gripping member that has an inclined surface portion for abutting against the abutment portion and grips the diaphragm portion, wherein when the abutment portion moves in the first direction, the gripping member displaces the diaphragm portion to the opening position by the abutment portion abutting against the inclined surface portion, and wherein when the abutment portion moves in the second direction, the gripping member displaces the diaphragm portion to the closing position by the abutment portion being separated from the inclined surface portion.
    Type: Grant
    Filed: September 16, 2019
    Date of Patent: September 22, 2020
    Assignee: Canon Kabushiki Kaisha
    Inventors: Takashi Abe, Tsuyoshi Saeki, Toshiaki Tokisawa, Ryoma Arai, Yumi Mukoyama
  • Patent number: 10780704
    Abstract: A print head assembly for an ink-jet printer operable with a continuous ink supply system is disclosed, with an ink compartment, a foam insert, an ink fill port, and a spacer. The ink fill port receives ink fed from an external supply and to be printed by the print head assembly. The ink compartment stores the ink to be printed. The foam insert is in the ink compartment and takes up the ink to be stored. The spacer extends into the ink compartment, provides for the formation of a clearance between the foam insert and the ink fill port and surrounds the ink fill port either completely or with one or more gaps having a gap width. The gap width of none of the gaps presents an aperture angle of more than 25% of 36° with respect to a center of the ink fill port.
    Type: Grant
    Filed: July 1, 2016
    Date of Patent: September 22, 2020
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Aidan O'Reilly, Tommy O'Connor, John Oliver, David Kelly, Stephen Byrne
  • Patent number: 10780719
    Abstract: An inkjet printing device includes an ink container accommodating a non-aqueous clear ink containing a resin and an organic solvent, a discharging head to discharge the non-aqueous clear ink directly or indirectly onto a substrate to form printed matter; and a heating device to heat the substrate, wherein the following relationship is satisfied: Tlow (° C.)>Thigh (° C.), where Tlow represents the temperature of the substrate that the heating device is heating during printing in a low gloss printing mode in which the non-aqueous clear ink is directly or indirectly discharged and attached to the substrate to impart low gloss to the printed matter and Thigh represents the temperature of the substrate that the heating device is heating during printing in a high gloss printing mode in which the non-aqueous clear ink is directly or indirectly discharged and attached to the substrate to impart high gloss to the printed matter.
    Type: Grant
    Filed: May 15, 2019
    Date of Patent: September 22, 2020
    Assignee: Ricoh Company, Ltd.
    Inventors: Hiroaki Takahashi, Kiminori Masuda, Mio Akima
  • Patent number: 10780722
    Abstract: A meandering control device includes: a detector configured to detect a position of an edge of a web being conveyed in a width direction of the web; a corrector configured to correct a position of the web being conveyed in the width direction; and a controller including a digital filter configured to perform filtering on a position signal indicating the position of the edge detected by the detector to attenuate a noise component. The controller is configured to drive the corrector to correct the position of the web in the width direction based on the position signal after the filtering.
    Type: Grant
    Filed: March 20, 2019
    Date of Patent: September 22, 2020
    Assignee: RISO KAGAKU CORPORATION
    Inventor: Hideaki Inoue
  • Patent number: 10773525
    Abstract: A liquid cartridge configured to be inserted into a cartridge-attachment section in an insertion direction includes a casing, and a lever supported by the casing. The lever is pivotable about a pivot axis between a first position and a second position. The lever includes a light-blocking portion configured to block or attenuate light traveling in a widthwise direction crossing the insertion direction and a gravitational direction, and a force-receiving portion positioned closer to a front wall of the casing than the light-blocking portion is to the front wall in the insertion direction. The light-blocking portion is positioned lower at the second position than at the first position. The pivot axis is positioned frontward of the light-blocking portion and rearward of the force-receiving portion in the insertion direction. The lever pivots from the second position to the first position upon application of an external force to the force-receiving portion.
    Type: Grant
    Filed: September 6, 2019
    Date of Patent: September 15, 2020
    Assignee: BROTHER KOGYO KABUSHIKI KAISHA
    Inventors: Hiroaki Takahashi, Takahiro Miyao, Akihito Ono, Tetsuro Kobayashi, Fumio Nakazawa, Kosuke Nukui