Plural Beam Scan Patents (Class 347/233)
  • Patent number: 11392054
    Abstract: An optical scanning apparatus includes a first rotating polygonal mirror that deflects a light beam such that the light beam scans a surface of a first image carrier, and a second rotating polygonal mirror that deflects a light beam such that the light beam scans a surface of a second image carrier. The optical scanning apparatus further includes a first phase control unit that performs phase control of the first rotating polygonal mirror based on a first detection signal output from a first detection unit and a first target phase, and a second phase control unit that performs phase control of the second rotating polygonal mirror based on a second detection signal output from a second detection unit and a second target phase, which is set with respect to the first target phase.
    Type: Grant
    Filed: September 16, 2020
    Date of Patent: July 19, 2022
    Assignee: Canon Kabushiki Kaisha
    Inventors: Masaki Inagaki, Hideaki Hirasawa
  • Patent number: 11383530
    Abstract: An object is to suppress variation in dot diameter. As a solution, an irradiation control unit (50) performs control for selecting an irradiating element (E2) having a distance from a nozzle (n) to eject irradiation target ink, smaller than that of an irradiating element (E3) which has the maximum distance difference with respect to the distance between the nozzle (n) and an irradiating element (E1) selected as an irradiating element for ink ejected from the nozzle (n) on an outward way, as an irradiating element which is selected on a homeward way.
    Type: Grant
    Filed: November 2, 2020
    Date of Patent: July 12, 2022
    Assignee: MIMAKI ENGINEERING CO., LTD.
    Inventors: Kazuhiro Ochi, Akira Takeuchi
  • Patent number: 11321037
    Abstract: A label modification unit may receive a label modification input associated with an image. The label modification unit may process, using an image filtering, the label modification input to convert the image to a bitmap for raster printing the image via a laser printhead. The label modification unit may determine, based on the bitmap, an array of power factors for a light beam that is configured to be emitted by a laser of the laser printhead and raster print the image. The label modification unit may control the laser of the laser printhead in association with raster printing the image on a rewriteable label according to the array of power factors.
    Type: Grant
    Filed: April 22, 2020
    Date of Patent: May 3, 2022
    Assignee: Zebra Technologies Corporation
    Inventors: Manuel P. Gabato, John J. Bozeki, Thomas Judd
  • Patent number: 11305554
    Abstract: A method for writing an imageable material using multiple beams includes preparing subsequent patterns each having Y rows of N pixel locations, said subsequent patterns including first and second patterns; where the first and the second pattern overlap with each other in an overlap area consisting of O columns and Y rows of pixel locations; selecting for each row i of said first pattern Mi1 pixel locations; selecting for each row i of said second pattern Mi2 pixel locations; writing simultaneously, for each row i, said Mi1 selected pixel locations by moving the N beams in a fast scan direction relative to said imageable material; and moving said N beams relative to said imageable material in a slow scan direction over (N?O) pixel locations; writing simultaneously, for each row i, said Mi2 selected pixel locations by moving the N beams in a fast scan direction relative to said imageable material.
    Type: Grant
    Filed: June 7, 2018
    Date of Patent: April 19, 2022
    Assignee: XEIKON PREPRESS N.V.
    Inventors: Bart Mark Luc Wattyn, Dirk Ludo Julien De Rauw
  • Patent number: 11003090
    Abstract: The disclosure relates to a lithography apparatus for writing to substrate wafers. The apparatus includes: a light generating device including one or a plurality of light sources for generating light; a writing device; a light transferring device including a number of optical waveguides for transferring the light from the light generating device to a writing device, the writing device including a plurality of individually controllable write heads for projecting the light from the one or the plurality of light sources in different regions of a substrate wafer; a transport device for moving the substrate wafer relative to the writing device in a predefined transport direction; and a control device for controlling the writing process on the substrate wafer.
    Type: Grant
    Filed: January 31, 2020
    Date of Patent: May 11, 2021
    Assignee: Carl Zeiss SMT GmbH
    Inventors: Stefan Richter, Enrico Geissler, Dirk Doering, Lakshmanan Senthil Kumar, Guenter Rudolph, Martin Voelcker, Markus Deguenther
  • Patent number: 10948659
    Abstract: Optoelectronic coupling systems include an optoelectronic chip mounted on a substrate. The optoelectronic chip has one or more optoelectronic components. An integrated circuit chip is mounted on the substrate in communication with the optoelectronic chip via one or more wires. A lower lens array is positioned over the optoelectronic chip. A lower surface of the lower lens array has a first cut-away portion to accommodate the optoelectronic chip and a second cut-away portion to accommodate the one or more wires. An upper surface of the lower lens array has one or more lower lenses positioned over respective optoelectronic components. An upper lens array is positioned over the lower lens array and has one or more upper lenses positioned over respective lower lenses.
    Type: Grant
    Filed: March 26, 2019
    Date of Patent: March 16, 2021
    Assignee: International Business Machines Corporation
    Inventors: Hidetoshi Numata, Masao Tokunari
  • Patent number: 10848721
    Abstract: The present disclosure provides a laser projection device and a laser projection system. The laser projection device comprises an optical fiber scanner and a MEMS scanning mirror; an optical fiber is disposed on the optical fiber scanner and the optical fiber is used to deliver laser beams needed by projection; the optical fiber scanner drives the optical fiber to scan in a first plane and enables the laser beam to project to the MEMS scanning mirror; and the MEMS scanning mirror makes scanning movement about a first axis and reflects the laser beam to a predetermined area to form a projection image; wherein the first axis is located in the first plane, or the first axis is parallel to the first plane. The present disclosure achieves laser projection by enabling the optical fiber scanner and the MEMS scanning mirror to scan simultaneously in different directions.
    Type: Grant
    Filed: March 7, 2017
    Date of Patent: November 24, 2020
    Assignee: GOERTEK INC.
    Inventors: Zhe Wang, Xiaoyang Zhang, Quanbo Zou
  • Patent number: 10782480
    Abstract: An optoelectronic coupling system includes an optoelectronic chip mounted on a substrate, having one or more optoelectronic components. A lower lens array is positioned over the optoelectronic chip and has a lower surface with a first portion at a first height to mount on the substrate and a second portion at a second height, higher than the first height, to accommodate a height of the optoelectronic chip. The lower lens array has an upper surface that comprises one or more lower lenses positioned over respective optoelectronic components of the one or more optoelectronic components. An upper lens array is positioned over the lower lens array and has one or more upper lenses positioned over respective lower lenses.
    Type: Grant
    Filed: January 8, 2019
    Date of Patent: September 22, 2020
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Hidetoshi Numata, Masao Tokunari
  • Patent number: 10759094
    Abstract: A binder material activating device to activate a binder material on a fibrous substrate, the binder material activating device including a heat exposing device to expose the fibrous substrate with the binder material to heat. The heat exposing device includes a non-focused light source to provide a non-focused light beam and an optics device to be arranged in between the fibrous substrate to be exposed to heat and the light source to focus the non-focused light beam onto the fibrous substrate. Further, a preforming device includes the binder material activating device.
    Type: Grant
    Filed: December 2, 2016
    Date of Patent: September 1, 2020
    Assignee: Airbus Defence and Space GmbH
    Inventors: Maxime Coquel, Wolfgang Rehm, Michael Träger
  • Patent number: 10715773
    Abstract: Systems, articles and methods to provide lens shading color correction using block matching are disclosed. Example processor systems disclosed herein include memory to store first shade correction data. Disclosed example processor systems also include processor circuitry to cluster blocks of an image into at least one cluster based on a criterion, process the at least one cluster to determine at least one modification parameter, modify the first shade correction data with the at least one modification parameter to determine second shade correction data, and correct a lens shade effect associated with the image based on the second shade correction data.
    Type: Grant
    Filed: February 8, 2019
    Date of Patent: July 14, 2020
    Assignee: Intel Corporation
    Inventor: Dmytro Paliy
  • Patent number: 10694062
    Abstract: An image forming apparatus includes an image forming unit, one or more processors, and memory storing instructions that, when executed by the one or more processors, cause the image forming apparatus to perform operations. The image forming unit forms an image on a sheet. The operations include controlling execution of dew condensation elimination processing that is processing for eliminating dew condensation having occurred in the image forming unit. The operations additionally include receiving image data to be printed and restricting, based on a type of a job executed using the received image data, image forming by the image forming unit, in a case where the dew condensation elimination processing is in execution.
    Type: Grant
    Filed: July 17, 2017
    Date of Patent: June 23, 2020
    Assignee: Canon Kabushiki Kaisha
    Inventors: Atsushi Ikeda, Hikaru Sugita
  • Patent number: 10645789
    Abstract: An optical source for a photolithography tool includes a source configured to emit a first beam of light and a second beam of light, the first beam of light having a first wavelength, and the second beam of light having a second wavelength, the first and second wavelengths being different; an amplifier configured to amplify the first beam of light and the second beam of light to produce, respectively, a first amplified light beam and a second amplified light beam; and an optical isolator between the source and the amplifier, the optical isolator including: a plurality of dichroic optical elements, and an optical modulator between two of the dichroic optical elements.
    Type: Grant
    Filed: October 23, 2017
    Date of Patent: May 5, 2020
    Assignee: ASML Netherlands B.V.
    Inventors: Yezheng Tao, Daniel John William Brown, Alexander Anthony Schafgans, Palash Parijat Das
  • Patent number: 10616432
    Abstract: An image forming apparatus includes an image forming unit, one or more processors, and memory storing instructions that, when executed by the one or more processors, cause the image forming apparatus to perform operations. The image forming unit forms an image on a sheet. The operations include controlling execution of dew condensation elimination processing that is processing for eliminating dew condensation having occurred in the image forming unit. The operations additionally include receiving image data to be printed and restricting, based on a type of a job executed using the received image data, image forming by the image forming unit, in a case where the dew condensation elimination processing is in execution.
    Type: Grant
    Filed: July 17, 2017
    Date of Patent: April 7, 2020
    Assignee: Canon Kabushiki Kaisha
    Inventors: Atsushi Ikeda, Hikaru Sugita
  • Patent number: 10591129
    Abstract: The lighting device for a vehicle has two light sources and a wavelength conversion device excited by the combination of the radiations from the two light sources. A first light source is associated with a scanning system projecting, by scanning, a first light radiation onto a first conversion region of the device, while a second light source with semiconductors emits a second light radiation into a second conversion region of the device. The second source, different from the first source and whose luminance level is typically less high, is provided with light-emitting units of submillimetric dimensions. The beams produced by the device respectively in the first region and in the second region have different characteristics and complement one another to produce one or more lighting functions.
    Type: Grant
    Filed: December 29, 2017
    Date of Patent: March 17, 2020
    Assignee: VALEO VISION
    Inventor: Pierre Albou
  • Patent number: 10470109
    Abstract: Technology herein selectively adjusts the frequency with which beam scanning is performed. Systems and methods herein determine present conditions of the UE and determine whether adjusting the current frequency of beam scanning is desired. Based at least on the present conditions, the current frequency may be reduced, increased, or maintained in order to balance the use of processing resources with the instability of channels.
    Type: Grant
    Filed: March 2, 2018
    Date of Patent: November 5, 2019
    Assignee: QUALCOMM Incorporated
    Inventors: Vasanthan Raghavan, Junyi Li, Assaf Touboul
  • Patent number: 10310187
    Abstract: An optoelectronic coupling system and methods of forming the same include an optoelectronic chip mounted on a substrate. The optoelectronic chip includes one or more optoelectronic components. A lower lens array is positioned over the optoelectronic chip and has a lower surface, with a first cut-away portion to accommodate the optoelectronic chip, and an upper surface that has one or more lower lenses positioned over respective optoelectronic components. An upper lens array is positioned over the lower lens array and has comprising one or more upper lenses positioned over respective lower lenses.
    Type: Grant
    Filed: January 9, 2018
    Date of Patent: June 4, 2019
    Assignee: International Business Machines Corporation
    Inventors: Hidetoshi Numata, Masao Tokunari
  • Patent number: 10205924
    Abstract: A system, article, and method to provide lens shading color correction using block matching.
    Type: Grant
    Filed: October 2, 2017
    Date of Patent: February 12, 2019
    Assignee: Intel Corporation
    Inventor: Dmytro Paliy
  • Patent number: 10091445
    Abstract: An imaging sensor comprising a 2D array of pixels in an XY coordinate system with gaps for electronic circuitry is presented. Furthermore, a scanning imaging system for imaging an oblique cross section of a sample with such a sensor is provided. Especially when the imaging sensor is in a tilted configuration this sensor is of specific advantages. The sensor allows for maximizing the photoactive part of the pixels in the photosensitive area of the sensor which leads to a maximized the fill factor. Furthermore this leads to a very light sensitive sensor and hence microlenses can be avoided. The gap or gaps of the imaging sensor facilitate also a faster read out because more circuitry can be positioned on the imaging sensor within the gap.
    Type: Grant
    Filed: December 15, 2014
    Date of Patent: October 2, 2018
    Assignee: KONINKLIJKE PHILIPS N.V.
    Inventor: Bas Hulsken
  • Patent number: 10036956
    Abstract: A method of flood exposing a photocurable printing blank to actinic radiation from a UV LED light source, wherein a high intensity UV LED light source is modulated to a lower intensity. The method includes the steps of: (a) positioning the photocurable printing blank in an exposure unit, wherein the exposure unit comprises one or more high intensity UV LED light sources; (b) modulating intensity of the one or more high intensity UV LED light sources to a lower intensity; and (c) flood exposing the photocurable printing blank through the photographic negative or the digitally imaged mask layer to actinic radiation from the one or more modulated UV LED light sources.
    Type: Grant
    Filed: May 3, 2016
    Date of Patent: July 31, 2018
    Inventors: Kyle P. Baldwin, Jeremy Hogan, Miguel Barboza, Rogelio Sanchez
  • Patent number: 10001646
    Abstract: A head-up display includes a concave mirror actuator that changes, based on external instructions, a reflection angle by which a concave mirror reflects display light. A drawing unit includes a beam generator, a scanner, an optical actuator, and a controller, The beam generator emits a beam, and the scanner scans the beam in two dimensions by moving a reflection surface to draw an image. The optical actuator changes an angle of incidence of when the beam is emitted to the scanner. The controller drives the optical actuator to change the angle of incidence such that display light distortions generated at the concave mirror are offset by display light distortions generated at the scanner.
    Type: Grant
    Filed: May 13, 2015
    Date of Patent: June 19, 2018
    Assignee: DENSO CORPORATION
    Inventors: Hiroshi Ando, Makoto Sakai
  • Patent number: 9924070
    Abstract: A correction method for an image forming apparatus including: a light source including light emitting points, a photosensitive member configured to rotate in a first direction, and a deflecting unit configured to deflect light beam emitted from the light source in a second direction orthogonal to the first direction to form scanning lines, the correction method including a correction step of correcting sparseness and denseness of density in the first direction caused by deviation of the scanning lines by moving a predetermined pixel in the first direction in accordance with the deviation, and causing a pixel value of the predetermined pixel to be output in accordance with movement of the predetermined pixel, wherein the correction step corrects the sparseness and denseness of the density based on the deviation of the scanning lines and the pixel value of the pixel, which are adjusted in accordance with an image forming condition.
    Type: Grant
    Filed: July 14, 2016
    Date of Patent: March 20, 2018
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Yasutomo Furuta
  • Patent number: 9860422
    Abstract: A correction method for an image forming apparatus including a light source including light emitting points, a photosensitive member configured to rotate in a first direction, and a deflecting unit configured to deflect light beams emitted from the light source in a second direction orthogonal to the first direction, the correction method includes: a first correction step of correcting sparseness and denseness of density in the first direction by moving a predetermined pixel in the first direction, and causing a pixel value of the predetermined pixel to be output or not to be output in accordance with movement of the predetermined pixel; and a second correction step of correcting the pixel value of the predetermined pixel by moving the pixel value of the predetermined pixel in the second direction so that a pixel value is caused to be output or not to be output with a plurality of continuous pixels.
    Type: Grant
    Filed: July 14, 2016
    Date of Patent: January 2, 2018
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Izuru Horiuchi, Yasutomo Furuta, Ryuichi Araki
  • Patent number: 9341977
    Abstract: A light emission apparatus includes a detection unit, a first drive unit, and a second drive unit. The detection unit detects the state of a detection element. The first drive unit controls the light amount of a light beam to be emitted by a first light emitting element based on the state of the detection element detected by the detection unit. The second drive unit controls the light amount of a light beam to be emitted by a second light emitting element based on the state of the detection element detected by the detection unit.
    Type: Grant
    Filed: April 22, 2013
    Date of Patent: May 17, 2016
    Assignee: Canon Kabushiki Kaisha
    Inventors: Tomohiro Kawamoto, Yuta Nito
  • Patent number: 9288366
    Abstract: An optical scanning device comprises: photoreceptors corresponding one-to-one to solid colors; high-resolution light sources each emitting a set of beams irradiating the corresponding photoreceptor with a predetermined distance therebetween along a sub-scanning direction; a deflection unit; a first optical system directing the sets of beams from the high-resolution light sources to the deflection unit; a low-resolution light source emitting a set of beams irradiating a predetermined photoreceptor with a distance therebetween larger than the predetermined distance along the sub-scanning direction; and a second optical system directing all of the sets of beams to the corresponding photoreceptor.
    Type: Grant
    Filed: September 1, 2011
    Date of Patent: March 15, 2016
    Assignee: KONICA MINOLTA, INC.
    Inventors: Hajime Taniguchi, Hidenari Tachibe, Takafumi Yuasa, Yoshitaka Otani
  • Patent number: 9238377
    Abstract: A system, article, and method to provide lens shading color correction using block matching.
    Type: Grant
    Filed: August 31, 2015
    Date of Patent: January 19, 2016
    Assignee: INTEL CORPORATION
    Inventor: Dmytro Paliy
  • Patent number: 9186909
    Abstract: A system, article, and method to provide lens shading color correction using block matching.
    Type: Grant
    Filed: September 26, 2014
    Date of Patent: November 17, 2015
    Assignee: INTEL CORPORATION
    Inventor: Dmytro Paliy
  • Patent number: 9182545
    Abstract: Technologies are generally described for fabricating a wafer level optical device using a plurality of substrates made of materials with a substantially compatible (e.g., same or similar) thermal expansion coefficient. An example device may include a first substrate including light-receiving or light-emitting elements, and a second substrate including optical elements located within through-holes of the second substrate. The through-holes can be configured to substantially align each of the light-receiving or light-emitting elements with a corresponding one of the optical elements. A thermal expansion coefficient of the second substrate can be configured to be substantially the same to a thermal expansion coefficient of the first substrate.
    Type: Grant
    Filed: October 25, 2012
    Date of Patent: November 10, 2015
    Assignee: Empire Technology Development LLC
    Inventor: Hiroshi Goto
  • Patent number: 9035987
    Abstract: Provided is an image forming apparatus including a light scanning apparatus that emits a light flux to photosensitive surfaces of a plurality of photosensitive bodies arranged so that longitudinal directions are the same direction and that optically scans the plurality of photosensitive surfaces in the longitudinal direction, wherein a diameter of at least one of the plurality of photosensitive bodies is different from diameters of the other photosensitive bodies in a cross section perpendicular to the longitudinal direction, and in the cross section perpendicular to the longitudinal direction, a sign of ?1 and a sign of ?2 are different, wherein ?1 denotes an incident angle of a light flux incident on a first photosensitive body with a smallest diameter among the plurality of photosensitive bodies, and ?2 denotes an incident angle of a light flux incident on a second photosensitive body with a largest diameter, and a condition |?1|>|?2|>0 is satisfied.
    Type: Grant
    Filed: January 14, 2014
    Date of Patent: May 19, 2015
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Takeshi Yamawaki
  • Patent number: 9001174
    Abstract: The image forming apparatus includes a photosensitive drum and a light emitting device. In the rotational axis direction of the photosensitive drum, the width of the weak light exposure region on the photosensitive drum in which an exposing device emits weak light is larger than the width of a region corresponding to the width of a recording medium on which an image is formed, but smaller than the width of a region on the photosensitive drum charged by a charging roller.
    Type: Grant
    Filed: February 28, 2013
    Date of Patent: April 7, 2015
    Assignee: Canon Kabushiki Kaisha
    Inventors: Shinji Katagiri, Masaru Shimura, Hideo Nanataki, Shinsuke Kobayashi, Kiyoto Toyoizumi, Yasunari Watanabe, Hideaki Hasegawa
  • Patent number: 8908230
    Abstract: Provided is a control apparatus for controlling an image forming apparatus including an inline sensor. The control apparatus includes: a data analyzing section configured to extract color information contained in an image of a target page positioned a predetermined number of pages after a certain page, where the predetermined number of pages are pages to be printed during at least a period from print processing for the certain page to measurement of color information on the printed image of the certain page; a color patch creating section configured to create a color patch corresponding to the color information contained in the image of the target page and arrange the color patch in the certain page; and a control section configured to send image data of the certain page to the image forming apparatus so as to make the image forming apparatus perform print processing and measuring color information.
    Type: Grant
    Filed: January 9, 2014
    Date of Patent: December 9, 2014
    Assignee: Konica Minolta, Inc.
    Inventor: Tatsuro Yamamuro
  • Patent number: 8902270
    Abstract: An image forming apparatus includes an image forming unit which transfers an image obtained through exposure and development to paper, and a control unit which changes a rotation speed of a polygon mirror at an intermediate area on a carrier to change a reduction/magnification ratio of an image. The control unit changes the rotation speed in a stepwise manner in such a way as to allow a stable rotation of the polygon mirror in each step, and controls the image forming unit to form a corrected patch image in parallel with the stepwise change of the rotation speed. The corrected patch image is obtained through correction in accordance with the stepwise change of the rotation speed to be the same as the patch image formed when the rotation speed is not changed.
    Type: Grant
    Filed: January 13, 2014
    Date of Patent: December 2, 2014
    Assignee: Konica Minolta, Inc.
    Inventor: Mutsumi Takagi
  • Patent number: 8879600
    Abstract: A surface emitting laser array element is disclosed that includes a lower distributed bragg reflector (DBR) that is formed on a substrate, an active layer that is formed on the lower DBR, and an upper DBR that is formed on the active layer. A mesa and a dummy mesa that is arranged at a periphery of the mesa are created by removing a portion of the upper DBR. The mesa forms a surface emitting laser, and a wiring is connected to an electrode that is formed on an upper face of the mesa. The wiring includes a portion that is arranged over an upper face of the dummy mesa, a side face of the dummy mesa, and a bottom face at a peripheral region of the dummy mesa extending along a longitudinal direction of the wiring.
    Type: Grant
    Filed: March 1, 2013
    Date of Patent: November 4, 2014
    Assignee: Ricoh Company, Ltd.
    Inventors: Katsunari Hanaoka, Masayuki Numata, Hiroyoshi Shouji
  • Patent number: 8837011
    Abstract: There is provided an image forming apparatus comprising: detection means for detecting position information indicating a scanning position; interval prediction means for predicting a first scanning line interval indicating a distance in the sub-scanning direction between the scanning line of interest and a succeeding scanning line to be scanned after the scanning line of interest; interval calculation means for calculating, by using the position information held by the holding means, a second scanning line interval indicating a distance in the sub-scanning direction between the scanning line of interest and the scanned scanning line; and rate calculation means for calculating a correction rate on an exposure amount for the scanning line of interest so that a predicted density calculated using the first scanning line interval and the second scanning line interval matches with a predicted density calculated using a predetermined reference scanning line interval.
    Type: Grant
    Filed: October 27, 2011
    Date of Patent: September 16, 2014
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yoichi Takikawa, Hideki Kubo, Takashi Ochiai
  • Patent number: 8791973
    Abstract: There is provided an image forming apparatus including plural photosensitive members on which developer images are formed by supplying developer to electrostatic latent images, respectively, an exposure device which illuminates light beams onto surfaces of the photosensitive members to form the electrostatic latent images, respectively. The developer images on the respective photosensitive numbers are transferred to a transferred medium which is moved in a moving direction while contacting the respective photosensitive members. The exposure device is configured such that a beam diameter of light beam exposing a most-upstream photosensitive member in the moving direction on a surface of the most-upstream photosensitive member is larger than a beam diameter of light beam exposing a most-downstream photosensitive member in the moving direction on a surface of the most-downstream photosensitive member.
    Type: Grant
    Filed: March 25, 2013
    Date of Patent: July 29, 2014
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventors: Yuichi Matsushita, Toshio Furukawa, Yosuke Sugiyama, Minoru Matsuura
  • Patent number: 8767250
    Abstract: An image forming apparatus includes: an acquiring unit; a resolution converting unit; a receiving unit; a position determining unit; a correcting unit; and a scaling unit. The acquiring unit acquires image data composed of a plurality of pixels; the scaling-factor determining unit determines a scaling factor of the acquired image data; the resolution converting unit converts a resolution of the acquired image data into a higher resolution than the resolution of the image data; the receiving unit receives a designation of a sub-scanning directional shift amount of a correction pixel to be corrected; a position determining unit performs a position determining process; and the scaling unit scales the image data at the determined scaling factor by causing the position determining unit and the correcting unit.
    Type: Grant
    Filed: March 9, 2011
    Date of Patent: July 1, 2014
    Assignee: Ricoh Company, Limited
    Inventor: Nobuyoshi Kaima
  • Patent number: 8736896
    Abstract: An optical scanning unit includes a light source including a plurality of light-emitting elements; a light detector to detect a light beam emitted from the light source; a light-flux splitter, angled to the optical axis of the light beam emitted from the light source, having an aperture, a portion of reduced thickness susceptible to warping, a concave face of the warped light-flux splitter as a reflecting face, and a convex face of the warped light-flux splitter opposite the concave face as a non-reflecting face; and a light-flux splitter pressing unit to press the light-flux splitter onto a light-flux splitter holding member without blocking the aperture. Light beam passed the aperture is used as a write-use light flux. The reflecting face reflects a light flux other than the write-use light flux as a monitor-use light flux. The light-flux splitter pressing unit presses a portion of maximum convexity of the non-reflecting face.
    Type: Grant
    Filed: May 23, 2011
    Date of Patent: May 27, 2014
    Assignee: Ricoh Company, Ltd.
    Inventor: Susumu Mikajiri
  • Patent number: 8724163
    Abstract: An optical scanning apparatus includes a light source, rotational polygonal mirror, correction data calculating unit, modification computing unit, and adjustment unit. The adjustment unit adjusts drive current supplied to the light source using the correction data calculated by the correction data calculating unit when a first of a plurality of modes is selected or using the correction data calculated by the modification computing unit when a second of the plurality of modes is selected.
    Type: Grant
    Filed: June 27, 2008
    Date of Patent: May 13, 2014
    Assignee: Canon Kabushiki Kaisha
    Inventor: Yuichi Seki
  • Patent number: 8680489
    Abstract: An installation and method for etching at least one wafer coated with an etch-ready, blank photosensitive layer is disclosed. In accordance with an embodiment, the wafer has thickness irregularities, wherein the wafer is arranged to be able to be submitted to irradiation-beam scanning, a sheet transparent to the radiation to which the photosensitive layer is sensitive covers the wafer, and a probe beam intended to reflect on the upper portion of the sheet perpendicularly to the irradiation beam spot on the photosensitive layer is provided.
    Type: Grant
    Filed: September 28, 2012
    Date of Patent: March 25, 2014
    Assignee: Commissariat à L'Énergie Atomique et aux Énergies Alternatives
    Inventors: Christophe Martinez, Pascal Boulitreau, Fabien Laulagnet
  • Patent number: 8654174
    Abstract: According to one embodiment, if it is designated by operation of a control panel that a printed halftone image for test is defective, a number of revolutions of a polygon mirror is finely adjusted by a predetermined rate and a frequency of a serial data signal is finely adjusted by the rate.
    Type: Grant
    Filed: June 28, 2011
    Date of Patent: February 18, 2014
    Assignees: Kabushiki Kaisha Toshiba, Toshiba Tec Kabushiki Kaisha
    Inventor: Takahiro Hamanaka
  • Patent number: 8625149
    Abstract: An image forming apparatus includes a positioning unit that acquires a misalignment amount of a pixel in a main-scanning direction and a sub-scanning direction, the pixel as a reference pixel for zooming image data, and decides a position of a pixel as a correction target, based on the misalignment amount; a correcting unit that corrects the pixel; a zooming unit that controls the positioning unit and the correcting unit so as to repeatedly perform the positioning process and the correction process on a pixel line; a pattern recognition unit that performs pattern matching on a predetermined pattern and a predetermined pixel line; and a pixel position changing unit that shifts the decided pixel position in the sub-scanning direction, wherein the zooming unit performs the zooming process on the pixel line of the sub-scanning direction including the pixel that is located at shifted pixel position.
    Type: Grant
    Filed: June 14, 2013
    Date of Patent: January 7, 2014
    Assignee: Ricoh Company, Limited
    Inventor: Nobuyoshi Kaima
  • Patent number: 8610294
    Abstract: A conventional laser processing method has a problem that the number of scanning lines is large, and it is difficult to shorten the time needed for the marking. In a laser processing method of the present invention, a first laser processing is performed in accordance with the outer border of, for example, an English letter “A,” and thereafter, second and subsequent laser processings are performed on an inner region inside the outer border. In this event, for the second and subsequent laser processings, the respective processing lines (scanning lines) are set up in a longitudinal direction of a processing region. Thus, the number of processing lines is greatly reduced. As a result, the time needed for the marking is greatly shortened, and the laser marking workability is improved.
    Type: Grant
    Filed: July 21, 2011
    Date of Patent: December 17, 2013
    Assignee: On Semiconductor Trading, Ltd.
    Inventors: Yutaka Hasegawa, Masaaki Shiraishi
  • Patent number: 8599234
    Abstract: In an image forming apparatus, a quantized amount of correction A is applied to emission timing with which each light-emitting point is to be caused to give off light emission to thereby align points of exposure to light emitted from the light-emitting points, substantially with a straight line extending in the main scanning direction on a photoconductor. The amount of correction A is adjusted by adding or subtracting one to or from one of the tentatively determined amounts of correction A1, A2 for light-emitting point (P1, P2) at opposite ends of two adjacent light-emitting chips, if formula (1) is not satisfied: ? ? ? ? E - B ? < D 2 ( 1 ) where B is difference |C1?C2| between amounts of shift C1, C2 of the light-emitting points (P1, P2) stored in a memory, ?E is a value derived from |A1?A2| multiplied by the quantization unit D, |A1?A2| is the difference between the amounts of correction A1, A2.
    Type: Grant
    Filed: January 27, 2012
    Date of Patent: December 3, 2013
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventor: Junichi Yokoi
  • Patent number: 8581945
    Abstract: A light emitting diode array including apertures, a line printer head using the light emitting diode array, and a method of manufacturing the light emitting diode array. The light emitting diode array includes the apertures that are formed in a substrate and restrict tunnels of light emitted from a plurality of light emitting diodes. Also, a lens that refracts the light transmitted through the plurality of apertures is included.
    Type: Grant
    Filed: October 12, 2010
    Date of Patent: November 12, 2013
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Seok-Jin Kang, Hyung Choi, Eung-Yeoul Yoon
  • Patent number: 8547412
    Abstract: An image forming apparatus includes: a light source; a photosensitive member; a brushless motor including a stator and a rotor; a rotary polygon mirror rotated by the brushless motor; an energization switching unit that turns on/off energizations of the coils; a voltage detecting unit that outputs a detection signal based on induced voltages generated in coils of the stator by rotation of the rotor; and a motor controlling unit that controls the turning on/off of the energizations by the energization switching unit based on the detection signal. In a non-image forming period after one image forming operation, the motor controlling unit performs a low-speed process where the motor controlling unit maintains a rotation speed of the brushless motor at a speed, which is lower than a speed in the image forming operation, and at which the induced voltages are detectable by the voltage detecting unit.
    Type: Grant
    Filed: March 9, 2011
    Date of Patent: October 1, 2013
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventor: Tomoya Ito
  • Patent number: 8514468
    Abstract: Image data is stored in a RAM, and when recording media are fed from a paper feed tray for a time interval longer than a predetermined time interval, a CPU causes an image forming section to execute a correction process.
    Type: Grant
    Filed: January 11, 2011
    Date of Patent: August 20, 2013
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventor: Keigo Goto
  • Patent number: 8493425
    Abstract: An image forming apparatus capable of reducing density variation that occurs in an output image when the rotational speed of a polygon mirror is changed. A light source emits a light beam for forming an electrostatic latent image on a photosensitive drum. The polygon mirror deflects the light beam such that the light beam moves on the photosensitive drum in a predetermined direction. A polygon mirror control circuit controls the polygon mirror such that when the toner image is to be formed at a first magnification, the rotational speed of the polygon mirror is made higher than when the toner image is to be formed at a second magnification that is larger than the first magnification. When the toner image is to be formed at the first magnification, the light beam becomes smaller in light amount than when the toner image is to be formed at the second magnification.
    Type: Grant
    Filed: May 31, 2011
    Date of Patent: July 23, 2013
    Assignee: Canon Kabushiki Kaisha
    Inventor: Yasutomo Furuta
  • Patent number: 8493613
    Abstract: An image forming apparatus includes a positioning unit that acquires a misalignment amount of a pixel in a main-scanning direction and a sub-scanning direction, the pixel as a reference pixel for zooming image data, and decides a position of a pixel as a correction target, based on the misalignment amount; a correcting unit that corrects the pixel; a zooming unit that controls the positioning unit and the correcting unit so as to repeatedly perform the positioning process and the correction process on a pixel line; a pattern recognition unit that performs pattern matching on a predetermined pattern and a predetermined pixel line; and a pixel position changing unit that shifts the decided pixel position in the sub-scanning direction, wherein the zooming unit performs the zooming process on the pixel line of the sub-scanning direction including the pixel that is located at shifted pixel position.
    Type: Grant
    Filed: March 10, 2010
    Date of Patent: July 23, 2013
    Assignee: Ricoh Company, Limited
    Inventor: Nobuyoshi Kaima
  • Patent number: 8477169
    Abstract: An optical writing device includes two or more light sources. The two or more light sources can be driven independently, are placed away from each other in a sub-scanning direction of a photoreceptor, and each distance of beams emitted from the light sources to the photoreceptor is different. A phase control unit causes a difference in phase among timing control data of two or more beams emitted from the two or more light sources by a phase change amount, which is determined on the basis of beam position of the each beam on the photoreceptor in a main scanning direction and varies depending on the beam position. The modulating unit modulates the timing control data of the respective phase-controlled beams by a same clock.
    Type: Grant
    Filed: September 13, 2010
    Date of Patent: July 2, 2013
    Assignee: Ricoh Company, Limited
    Inventor: Toshio Ohide
  • Patent number: 8469507
    Abstract: A medium holding apparatus includes: a medium holding conveyance device which has a plurality of suction grooves for suctioning a sheet-shaped medium, and conveys the medium in a prescribed direction while holding the medium on a medium holding surface; and a suction pressure generating device which is connected to the plurality of suction grooves, and generates suction pressure in each of the suction grooves, wherein: the plurality of suction grooves include a leading end suction groove provided at a position where a leading end region of the medium is held, and the leading end suction groove has a structure so as to be separated from other suction grooves of the plurality of suction grooves, and is connected to the suction pressure generating device via a flow channel which is not connected to the other suction grooves.
    Type: Grant
    Filed: July 30, 2010
    Date of Patent: June 25, 2013
    Assignee: FUJIFILM Corporation
    Inventor: Takashi Fukui
  • Patent number: 8446444
    Abstract: A deflector deflects a light beam emitted from a light source including a plurality of light-emitting units. A scanning optical system focuses the light beam deflected by the deflector on a scanning target surface. A monitoring photoreceiver receives a part of a light beam deflected by the deflector and directed toward an area within a scanning area outside an image area. A detecting unit individually detects emission powers of at least two light-emitting units based on an output signal of the monitoring photoreceiver in a single sweep of scanning.
    Type: Grant
    Filed: January 23, 2009
    Date of Patent: May 21, 2013
    Assignee: Ricoh Company, Ltd.
    Inventors: Masaaki Ishida, Yasuhiro Nihei, Atsufumi Omori, Dan Ozasa, Jun Tanabe