Patents by Inventor Hideji Mizutani

Hideji Mizutani has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20230120686
    Abstract: Provided is a scanning device including a first irradiation unit, a second irradiation unit, a scanning unit, a waveguide unit, and a detection unit. The first irradiation unit radiates a first electromagnetic wave for scanning an object of interest. The second irradiation unit radiates a second electromagnetic wave. The scanning unit deflects and outputs the first electromagnetic wave radiated by the first irradiation unit and the second electromagnetic wave radiated by the second irradiation unit. The waveguide unit guides at least part of the second electromagnetic wave, output by the scanning unit, in a different direction from the first electromagnetic wave. The detection unit detects the second electromagnetic wave guided in the different direction from the first electromagnetic wave by the waveguide unit.
    Type: Application
    Filed: March 3, 2021
    Publication date: April 20, 2023
    Applicants: KYOCERA Corporation, KYOCERA Document Solutions Inc.
    Inventors: Tatsuya NAGAYA, Hiroki OKADA, Daisuke TAKAHASHI, Hideji MIZUTANI
  • Patent number: 11513347
    Abstract: A laser scanning unit includes a light source portion, a scanning portion, a first correction portion, and a second correction portion. The light source portion outputs a plurality of light beams. The scanning portion scans the plurality of light beams to form a plurality of electrostatic latent images, respectively corresponding to a plurality of colors including at least one reference color and at least one non-reference color, in an image forming portion. The first correction portion applies an external mechanical force to an optical element located in a path of a reference beam, corresponding to the reference color, among the plurality of light beams to correct distortion of a scan line of the reference beam. The second correction portion controls the light source portion to correct distortion of a scan line of a non-reference beam, corresponding to the non-reference color, among the plurality of light beams.
    Type: Grant
    Filed: August 25, 2021
    Date of Patent: November 29, 2022
    Assignee: KYOCERA Document Solutions Inc.
    Inventor: Hideji Mizutani
  • Publication number: 20220066201
    Abstract: A laser scanning unit includes a light source portion, a scanning portion, a first correction portion, and a second correction portion. The light source portion outputs a plurality of light beams. The scanning portion scans the plurality of light beams to form a plurality of electrostatic latent images, respectively corresponding to a plurality of colors including at least one reference color and at least one non-reference color, in an image forming portion. The first correction portion applies an external mechanical force to an optical element located in a path of a reference beam, corresponding to the reference color, among the plurality of light beams to correct distortion of a scan line of the reference beam. The second correction portion controls the light source portion to correct distortion of a scan line of a non-reference beam, corresponding to the non-reference color, among the plurality of light beams.
    Type: Application
    Filed: August 25, 2021
    Publication date: March 3, 2022
    Inventor: Hideji Mizutani
  • Publication number: 20220066200
    Abstract: A laser scanning unit includes a light source portion, a scanning portion, a first correction portion, and a second correction portion. The light source portion outputs a light beam. The scanning portion scans the light beam to form an electrostatic latent image in an image forming portion. The first correction portion applies an external mechanical force to an optical element located in a path of the light beam to correct inclination of a scan line of the light beam. The second correction portion controls the light source portion to correct distortion of the scan line of the light beam.
    Type: Application
    Filed: August 25, 2021
    Publication date: March 3, 2022
    Inventor: Hideji Mizutani
  • Patent number: 10782628
    Abstract: An optical scanner includes a multi beam light source, a scanning optical system, and a controller. The controller specifies selected beams, and changes light quantities of the respective selected beams at the same change timing based on the same profile data at respective positions in the main scanning direction which are fixedly determined as light quantity change positions. When the position of a center region in an arrangement width of the plurality of selected beams is moved in the main scanning direction in response to a selected mode of the beams, in the profile data, the controller derives a shift light quantity at a position shifted in the main scanning direction by an amount corresponding to the movement of the position of the center region, and the light quantity is modified so that the shift light quantity is used at the light quantity change position.
    Type: Grant
    Filed: July 30, 2019
    Date of Patent: September 22, 2020
    Assignee: KYOCERA Document Solutions Inc.
    Inventor: Hideji Mizutani
  • Publication number: 20200041924
    Abstract: An optical scanner includes a multi beam light source, a scanning optical system, and a controller. The controller specifies selected beams, and changes light quantities of the respective selected beams at the same change timing based on the same profile data at respective positions in the main scanning direction which are fixedly determined as light quantity change positions. When the position of a center region in an arrangement width of the plurality of selected beams is moved in the main scanning direction in response to a selected mode of the beams, in the profile data, the controller derives a shift light quantity at a position shifted in the main scanning direction by an amount corresponding to the movement of the position of the center region, and the light quantity is modified so that the shift light quantity is used at the light quantity change position.
    Type: Application
    Filed: July 30, 2019
    Publication date: February 6, 2020
    Inventor: Hideji Mizutani
  • Patent number: 10146151
    Abstract: In an optical scanning device, light emitting start timings of light emitting parts with respect to a reference light emitting part are stored in a storage part. In a correction mode, a light emitting timing correction control part performs first control for allowing positions of beam spots of the light beams emitted from the light emitting parts to be equal to each other, second control for allowing a light emitting part LD4 to emit a light beam at a plurality of different start timings and patch images to be formed on a intermediate transfer belt 281, and third control for correcting light emitting start timings of light emitting parts LD2 to LD4 on the basis of the start timing of the light emitting part LD4 at which the patch images has the highest concentration.
    Type: Grant
    Filed: December 19, 2017
    Date of Patent: December 4, 2018
    Assignee: KYOCERA DOCUMENT SOLUTIONS INC.
    Inventor: Hideji Mizutani
  • Publication number: 20180181021
    Abstract: In an optical scanning device, light emitting start timings of light emitting parts with respect to a reference light emitting part are stored in a storage part. In a correction mode, a light emitting timing correction control part performs first control for allowing positions of beam spots of the light beams emitted from the light emitting parts to be equal to each other, second control for allowing a light emitting part LD4 to emit a light beam at a plurality of different start timings and patch images to be formed on a intermediate transfer belt 281, and third control for correcting light emitting start timings of light emitting parts LD2 to LD4 on the basis of the start timing of the light emitting part LD4 at which the patch images has the highest concentration.
    Type: Application
    Filed: December 19, 2017
    Publication date: June 28, 2018
    Inventor: Hideji MIZUTANI
  • Patent number: 9917971
    Abstract: A laser scanning device includes a light source, a deflection portion, an image forming lens, and a light source control portion. The light source emits a light beam. The deflection portion causes the light beam emitted from the light source to scan a scanned surface by deflecting the light beam at a predetermined deflection angle. The image forming lens condenses the deflected light beam on the scanned surface, and causes the light beam to be scanned on the scanned surface in a scanning direction at an equal speed. The light source control portion controls the light source to irradiate the light beam to at least one section area among a plurality of section areas sectioned from each other in the scanning direction on the scanned surface, at a plurality of irradiation timings determined based on a position of the at least one section area in the scanning direction.
    Type: Grant
    Filed: October 21, 2016
    Date of Patent: March 13, 2018
    Assignee: KYOCERA Document Solutions Inc.
    Inventors: Hideki Ishida, Yuji Toyota, Hideji Mizutani
  • Patent number: 9885973
    Abstract: Disclosed is an optical deflector which includes: a polygonal mirror, a drive motor, a cover member, and a temperature detection unit. The cover member includes: a first cover portion defining a first space in which the polygonal mirror is installed, wherein the first cover portion is formed with a first opening opened in opposed relation to an outer peripheral surface of the polygonal mirror; a second cover portion defining a second space which is communicated with the first space and in which the drive motor is installed, wherein the second cover portion is formed with a second opening opened in opposed relation to a motor body of the drive motor; and a third cover portion defining a third space which is communicated with the second space. The temperature detection unit is mounted to the third cover portion so as to close the third space.
    Type: Grant
    Filed: April 11, 2017
    Date of Patent: February 6, 2018
    Assignee: KYOCERA DOCUMENT SOLUTIONS INC.
    Inventors: Hideji Mizutani, Hiroatsu Tamai
  • Patent number: 9841698
    Abstract: Disclosed is an optical deflector including a polygonal mirror and a drive motor each mounted on a substrate, a cover member covering the polygonal mirror and the drive motor, and an electronic component. The cover member includes: a first cover portion defining a first space in which the polygonal mirror is installed, wherein the first cover portion is formed with a first opening opened in opposed relation to an outer peripheral surface of the polygonal mirror; and a second cover portion defining a second space which is communicated with the first space and in which the drive motor is installed, wherein the second cover portion is formed with a second opening opened in opposed relation to a motor body of the drive motor. When viewed in the first direction, the electronic component is disposed such that it falls within an open region of the second opening.
    Type: Grant
    Filed: April 11, 2017
    Date of Patent: December 12, 2017
    Assignee: KYOCERA DOCUMENT SOLUTIONS INC.
    Inventors: Hideji Mizutani, Takayuki Kurihara, Seiji Taki, Shingo Yoshida
  • Publication number: 20170299976
    Abstract: Disclosed is an optical deflector which includes: a polygonal mirror, a drive motor, a cover member, and a temperature detection unit. The cover member includes: a first cover portion defining a first space in which the polygonal mirror is installed, wherein the first cover portion is formed with a first opening opened in opposed relation to an outer peripheral surface of the polygonal mirror; a second cover portion defining a second space which is communicated with the first space and in which the drive motor is installed, wherein the second cover portion is formed with a second opening opened in opposed relation to a motor body of the drive motor; and a third cover portion defining a third space which is communicated with the second space. The temperature detection unit is mounted to the third cover portion so as to close the third space.
    Type: Application
    Filed: April 11, 2017
    Publication date: October 19, 2017
    Inventors: Hideji Mizutani, Hiroatsu Tamai
  • Publication number: 20170299975
    Abstract: Disclosed is an optical deflector including a polygonal mirror and a drive motor each mounted on a substrate, a cover member covering the polygonal mirror and the drive motor, and an electronic component. The cover member includes: a first cover portion defining a first space in which the polygonal mirror is installed, wherein the first cover portion is formed with a first opening opened in opposed relation to an outer peripheral surface of the polygonal mirror; and a second cover portion defining a second space which is communicated with the first space and in which the drive motor is installed, wherein the second cover portion is formed with a second opening opened in opposed relation to a motor body of the drive motor. When viewed in the first direction, the electronic component is disposed such that it falls within an open region of the second opening.
    Type: Application
    Filed: April 11, 2017
    Publication date: October 19, 2017
    Inventors: Hideji Mizutani, Takayuki Kurihara, Seiji Taki, Shingo Yoshida
  • Patent number: 9671717
    Abstract: An optical scanning device includes a scanning member, a plurality of light sources, a first reflection mirror, and a second reflection mirror. The scanning member scans incident laser beams in a predetermined main scanning direction. The plurality of light sources emit the laser beams from positions that are different along a sub scanning direction that is perpendicular to an optical axis direction of the laser beams and the main scanning direction. The first reflection mirror is inclined around the main scanning direction as a rotation axis, is inclined around the sub scanning direction as another rotation axis, and reflects the laser beams emitted from the light sources. The second reflection mirror is inclined around the main scanning direction as a rotation axis, is inclined around the sub scanning direction as another rotation axis, and reflects the laser beams reflected by the first reflection mirror toward the scanning member.
    Type: Grant
    Filed: March 24, 2016
    Date of Patent: June 6, 2017
    Assignee: KYOCERA Document Solutions Inc.
    Inventors: Shingo Yoshida, Hideji Mizutani, Takayuki Kurihara, Kosuke Uchida
  • Patent number: 9665035
    Abstract: This light source unit includes a light source, a collimator lens, a support body, and an adhesive agent. The collimator lens is configured to collimate laser light emitted from the light source. In the support body, a first support portion configured to support the light source and a second support portion configured to support the collimator lens are integrally molded with each other by use of a synthetic resin. The adhesive agent is attached by a larger amount between the second support portion and a second face which is on an opposite side to a first face on the light source side of the collimator lens, than between the second support portion and the first face.
    Type: Grant
    Filed: August 26, 2016
    Date of Patent: May 30, 2017
    Assignee: KYOCERA Document Solutions Inc.
    Inventor: Hideji Mizutani
  • Publication number: 20170118369
    Abstract: A laser scanning device includes a light source, a deflection portion, an image forming lens, and a light source control portion. The light source emits a light beam. The deflection portion causes the light beam emitted from the light source to scan a scanned surface by deflecting the light beam at a predetermined deflection angle. The image forming lens condenses the deflected light beam on the scanned surface, and causes the light beam to be scanned on the scanned surface in a scanning direction at an equal speed. The light source control portion controls the light source to irradiate the light beam to at least one section area among a plurality of section areas sectioned from each other in the scanning direction on the scanned surface, at a plurality of irradiation timings determined based on a position of the at least one section area in the scanning direction.
    Type: Application
    Filed: October 21, 2016
    Publication date: April 27, 2017
    Inventors: Hideki Ishida, Yuji Toyota, Hideji Mizutani
  • Patent number: 9594244
    Abstract: A light deflector includes a fixing portion and a movable portion. The movable portion includes a mirror portion for deflecting light by swinging about a predetermined swing axis, a torsion bar fixedly supported on the fixing portion and having an axis serving as the swing axis, and a supporting body configured to support the mirror portion and fixed to the torsion bar. The supporting body includes a hole portion through which the axis passes. A mass body for adjusting a resonant frequency of the movable portion is arranged in the hole portion.
    Type: Grant
    Filed: May 29, 2014
    Date of Patent: March 14, 2017
    Assignee: KYOCERA Document Solutions Inc.
    Inventor: Hideji Mizutani
  • Publication number: 20170060021
    Abstract: This light source unit includes a light source, a collimator lens, a support body, and an adhesive agent. The collimator lens is configured to collimate laser light emitted from the light source. In the support body, a first support portion configured to support the light source and a second support portion configured to support the collimator lens are integrally molded with each other by use of a synthetic resin. The adhesive agent is attached by a larger amount between the second support portion and a second face which is on an opposite side to a first face on the light source side of the collimator lens, than between the second support portion and the first face.
    Type: Application
    Filed: August 26, 2016
    Publication date: March 2, 2017
    Inventor: Hideji Mizutani
  • Patent number: 9516187
    Abstract: A laser scanning unit includes a light source, a deflector, and a scanning lens. A surface shape of the scanning lens is formed so as to have: non-uniform-speed scanning characteristics in which a scanning speed with the light beam is the lowest at the one end and the other end of the to-be-scanned surface and is highest at a midpoint between the one end and the other end; and image formation characteristics in which a beam diameter of the light beam is largest at the one end and the other end of the to-be-scanned surface and is the smallest at the midpoint between the one end and the other end. The non-uniform-speed scanning characteristics and the image formation characteristics are characteristics in which a peak value of an intensity distribution of the light beam at each image height is made equal to each other by a combination of both characteristics.
    Type: Grant
    Filed: November 25, 2015
    Date of Patent: December 6, 2016
    Assignee: KYOCERA Document Solutions Inc.
    Inventor: Hideji Mizutani
  • Publication number: 20160282750
    Abstract: n optical scanning device includes a scanning member, a plurality of light sources, a first reflection mirror, and a second reflection mirror. The scanning member scans incident laser beams in a predetermined main scanning direction. The plurality of light sources emit the laser beams from positions that are different along a sub scanning direction that is perpendicular to an optical axis direction of the laser beams and the main scanning direction. The first reflection mirror is inclined around the main scanning direction as a rotation axis, is inclined around the sub scanning direction as another rotation axis, and reflects the laser beams emitted from the light sources. The second reflection mirror is inclined around the main scanning direction as a rotation axis, is inclined around the sub scanning direction as another rotation axis, and reflects the laser beams reflected by the first reflection mirror toward the scanning member.
    Type: Application
    Filed: March 24, 2016
    Publication date: September 29, 2016
    Inventors: Shingo Yoshida, Hideji Mizutani, Takayuki Kurihara, Kosuke Uchida