Patents by Inventor Kazuhiro Akatsu

Kazuhiro Akatsu 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: 20230219162
    Abstract: A pattern forming apparatus for a base material includes a holding unit and a pattern forming unit. The holding unit is configured to hold a base material on which one of a protrusion shape portion and a recess shape portion is formed. The pattern forming unit is configured to form a pattern on the base material. The pattern is formed on at least one of the protrusion shape portion, the recess shape portion, a periphery of the recess shape portion, a periphery of the protrusion shape portion, a portion along the protrusion shape portion, and a portion along the recess shape portion.
    Type: Application
    Filed: March 1, 2023
    Publication date: July 13, 2023
    Inventors: Kazuhiro AKATSU, Rie HIRAYAMA, Kazuhiro FUJITA, Shoichiro SAKAI
  • Publication number: 20220388724
    Abstract: Provided is a container including a container body, and an image on the container body. The image includes a plurality of dented portions and non-dented portions. Each of the dented portions is formed of a plurality of processed portions. The plurality of processed portions are disposed linearly, contacting or overlapping each other along a first scanning direction. A width of each of the dented portions in a second scanning direction orthogonal to the first scanning direction changes cyclically along the first scanning direction. Each of the dented portions has bossed portions along the first scanning direction between adjoining ones of the processed portions.
    Type: Application
    Filed: May 20, 2022
    Publication date: December 8, 2022
    Applicant: Ricoh Company, Ltd.
    Inventors: Keiichi SERIZAWA, Kazuhiro FUJITA, Masako YOSHII, Makoto HINO, Kazuhiro AKATSU
  • Publication number: 20220388324
    Abstract: Provided is a container including a container body and an image on the container body. The image includes a plurality of dented portions and non-dented portions. A visibility value of the image represented by Mathematical formula (1) below is greater than or equal to a predetermined value. Visibility value=b0·L*0·(1?exp(b1·?L*))??Mathematical formula (1) In Mathematical formula (1), L*0 represents a luminosity of the image. ?L* represents a difference between the luminosity of the image and a luminosity of any other portion than the image, b0 represents a positive real number, and b1 represents a negative real number.
    Type: Application
    Filed: May 16, 2022
    Publication date: December 8, 2022
    Inventors: Masako YOSHII, Keiichi SERIZAWA, Makoto HINO, Kazuhiro AKATSU, Takeshi UEDA, Takayuki NAKAMURA, Yumiko KISHI
  • Publication number: 20220305812
    Abstract: A medium, a container, an object-holding container, a marking, device, and a method of manufacturing the container. The medium includes an image of design, and the design includes a light color portion and a dark color portion, the light color portion including a light reflecting layer, and the dark color portion including a light attenuation layer The container includes a laser beam source to emit a laser beam, a forming unit to make the laser beam perform marking on a container that has transparency and is colorless or colored, and an adjuster to adjust a marking condition according to information about a to-lie-contained object stored in the container. The method includes irradiating the container with a laser beam to form a light reflecting layer and a light attenuation layer, and the light reflecting layer and the light attenuation layer includes an aggregate of microstructures.
    Type: Application
    Filed: March 11, 2022
    Publication date: September 29, 2022
    Inventors: Kazuki FUNAHASHI, Yoichi ICHIKAWA, Yumiko KISHI, Hirotoshi NAKAYAMA, Makoto HINO, Kazuhiro AKATSU
  • Patent number: 10591602
    Abstract: An object detector includes a projector including a light source having a two-dimensionally arranged plurality of light emitter groups, each of the light emitter groups having a plurality of light emitters, a light receiver which receives light emitted from the projector, and reflected by an object, and a light source driver which lights on and lights off each of the light emitter groups of the light source.
    Type: Grant
    Filed: April 15, 2019
    Date of Patent: March 17, 2020
    Assignee: Ricoh Company, Ltd.
    Inventors: Kazuhiro Akatsu, Tadashi Nakamura, Kohji Sakai
  • Publication number: 20190242997
    Abstract: An object detector includes a projector including a light source having a two-dimensionally arranged plurality of light emitter groups, each of the light emitter groups having a plurality of light emitters, a light receiver which receives light emitted from the projector, and reflected by an object, and a light source driver which lights on and lights off each of the light emitter groups of the light source.
    Type: Application
    Filed: April 15, 2019
    Publication date: August 8, 2019
    Inventors: Kazuhiro AKATSU, Tadashi NAKAMURA, Kohji SAKAI
  • Patent number: 10302767
    Abstract: An object detector includes a projector including a light source having a two-dimensionally arranged plurality of light emitter groups, each of the light emitter groups having a plurality of light emitters, a light receiver which receives light emitted from the projector, and reflected by an object, and a light source driver which lights on and lights off each of the light emitter groups of the light source.
    Type: Grant
    Filed: October 10, 2017
    Date of Patent: May 28, 2019
    Assignee: RICOH COMPANY, LTD.
    Inventors: Kazuhiro Akatsu, Tadashi Nakamura, Kohji Sakai
  • Patent number: 10209133
    Abstract: A wavelength estimation device including a light detector to receive light emitted from a light source and an estimation unit. The estimation unit estimates a wavelength of the light based on an amount of light received by the light detector.
    Type: Grant
    Filed: March 9, 2017
    Date of Patent: February 19, 2019
    Assignee: Ricoh Company, Ltd.
    Inventors: Kohji Sakai, Kazuhiro Akatsu
  • Patent number: 9889679
    Abstract: An application device includes a conveyer to convey a recording medium, an application roller to apply a treatment liquid to the recording medium, a pressure roller to sandwich the recording medium with the application roller to press the recording medium against the application roller, and a winding member to form a curved conveying path to have the recording medium curved along a conveying direction to wind the recording medium around the pressure roller. The pressure roller comes in contact with the application roller when applying the treatment liquid and separates from the application roller when not applying the treatment liquid. A predetermined positional relationship is maintained between the pressure roller and the winding member while the pressure roller moves close to the application roller to be in contact with the application roller, or the pressure roller moves away from the application roller to be separated from the application roller.
    Type: Grant
    Filed: December 2, 2016
    Date of Patent: February 13, 2018
    Assignee: RICOH COMPANY, LTD.
    Inventors: Akitomo Kuwabara, Kazuhiro Akatsu, Yutaka Nagasawa, Yuuji Ohmura, Hirotaka Kobayashi, Hirofumi Ohkushi
  • Publication number: 20180038959
    Abstract: An object detector includes a projector including a light source having a two-dimensionally arranged plurality of light emitter groups, each of the light emitter groups having a plurality of light emitters, a light receiver which receives light emitted from the projector, and reflected by an object, and a light source driver which lights on and lights off each of the light emitter groups of the light source.
    Type: Application
    Filed: October 10, 2017
    Publication date: February 8, 2018
    Inventors: Kazuhiro AKATSU, Tadashi NAKAMURA, Kohji SAKAI
  • Patent number: 9817123
    Abstract: An object detector includes a projector including a light source having a two-dimensionally arranged plurality of light emitter groups, ach of the light emitter groups having a plurality of light emitters, a light receiver which receives light emitted from the projector, and reflected by an object, and a light source driver which lights on and lights off each of the light emitter groups of the light source.
    Type: Grant
    Filed: December 7, 2016
    Date of Patent: November 14, 2017
    Assignee: RICOH COMPANY, LTD.
    Inventors: Kazuhiro Akatsu, Tadashi Nakamura, Kohji Sakai
  • Publication number: 20170276546
    Abstract: A wavelength estimation device including a light detector to receive light emitted from a light source and an estimation unit. The estimation unit estimates a wavelength of the light based on an amount of light received by the light detector.
    Type: Application
    Filed: March 9, 2017
    Publication date: September 28, 2017
    Inventors: Kohji SAKAI, Kazuhiro Akatsu
  • Publication number: 20170165981
    Abstract: An application device includes a conveyer to convey a recording medium, an application roller to apply a treatment liquid to the recording medium, a pressure roller to sandwich the recording medium with the application roller to press the recording medium against the application roller, and a winding member to form a curved conveying path to have the recording medium curved along a conveying direction to wind the recording medium around the pressure roller. The pressure roller comes in contact with the application roller when applying the treatment liquid and separates from the application roller when not applying the treatment liquid. A predetermined positional relationship is maintained between the pressure roller and the winding member while the pressure roller moves close to the application roller to be in contact with the application roller, or the pressure roller moves away from the application roller to be separated from the application roller.
    Type: Application
    Filed: December 2, 2016
    Publication date: June 15, 2017
    Applicant: RICHO COMPANY, LTD.
    Inventors: Akitomo Kuwabara, Kazuhiro Akatsu, Yutaka Nagasawa, Yuuji Ohmura, Hirotaka Kobayashi, Hirofumi Ohkushi
  • Patent number: 9616682
    Abstract: There is provided a process liquid coating apparatus comprising: a recording medium conveyance unit configured to convey a recording medium; a coating roller configured to rotate in accordance with the conveyed recording medium to apply process liquid on a surface of the recording medium; a pressure roller configured to cause the coating roller to apply the process liquid on the surface of the recording medium by forming an abutment part for nipping and pressing the recording medium with the coating roller; and a winding member configured to form a bent conveyance path along which the recording medium is bent with respect to a conveyance direction so that the recording medium is wound around the surface of the pressure roller, wherein the winding member is disposed adjacent to the pressure roller.
    Type: Grant
    Filed: February 9, 2016
    Date of Patent: April 11, 2017
    Assignee: Ricoh Company, Ltd.
    Inventors: Kazuhiro Akatsu, Yutaka Nagasawa, Akitomo Kuwabara, Yuuji Ohmura, Hirofumi Ohkushi, Hirotaka Kobayashi, Sho Sawahata
  • Publication number: 20170082747
    Abstract: An object detector includes a projector including a light source having a two-dimensionally arranged plurality of light emitter groups, ach of the light emitter groups having a plurality of light emitters, a light receiver which receives light emitted from the projector, and reflected by an object, and a light source driver which lights on and lights off each of the light emitter groups of the light source.
    Type: Application
    Filed: December 7, 2016
    Publication date: March 23, 2017
    Inventors: KAZUHIRO AKATSU, Tadashi Nakamura, Kohji Sakai
  • Patent number: 9568605
    Abstract: An object detector includes a projector including a light source having a two-dimensionally arranged plurality of light emitter groups, each of the light emitter groups having a plurality of light emitters, a light receiver which receives light emitted from the projector, and reflected by an object, and a light source driver which lights on and lights off each of the light emitter groups of the light source.
    Type: Grant
    Filed: November 26, 2014
    Date of Patent: February 14, 2017
    Assignee: RICOH COMPANY, LTD.
    Inventors: Kazuhiro Akatsu, Tadashi Nakamura, Kohji Sakai
  • Publication number: 20160263913
    Abstract: There is provided a process liquid coating apparatus comprising: a recording medium conveyance unit configured to convey a recording medium; a coating roller configured to rotate in accordance with the conveyed recording medium to apply process liquid on a surface of the recording medium; a pressure roller configured to cause the coating roller to apply the process liquid on the surface of the recording medium by forming an abutment part for nipping and pressing the recording medium with the coating roller; and a winding member configured to form a bent conveyance path along which the recording medium is bent with respect to a conveyance direction so that the recording medium is wound around the surface of the pressure roller, wherein the winding member is disposed adjacent to the pressure roller.
    Type: Application
    Filed: February 9, 2016
    Publication date: September 15, 2016
    Applicant: RICOH COMPANY, LTD.
    Inventors: Kazuhiro AKATSU, Yutaka NAGASAWA, Akitomo KUWABARA, Yuuji OHMURA, Hirofumi OHKUSHI, Hirotaka KOBAYASHI, Sho SAWAHATA
  • Patent number: 9193197
    Abstract: A liquid droplet detecting device includes nozzles arranged in a paper width direction orthogonal to a paper conveying direction to discharge liquid droplets, a light emitting element provided on one side of the paper width direction to emit a light beam for liquid droplet detection, a light receiving element provided on the other side of the paper width direction to receive the light beam, a storage in which correspondence information on each of the nozzles and a scan position of the light beam when discharge of a liquid droplet from each of the nozzles is detected is stored, a controller to allow the light beam to scan according to the correspondence information, and a detector to determine presence or absence a liquid droplet discharged from each nozzle from an output of the light receiving element.
    Type: Grant
    Filed: February 11, 2015
    Date of Patent: November 24, 2015
    Assignee: Ricoh Company, Ltd.
    Inventors: Genichiro Kawamichi, Shigeru Morinaga, Hideharu Miki, Hiroshi Ando, Kahei Nakamura, Kazuhiro Akatsu, Hirotaka Kobayashi, Keiichi Watanabe
  • Publication number: 20150224802
    Abstract: A liquid droplet detecting device includes nozzles arranged in a paper width direction orthogonal to a paper conveying direction to discharge liquid droplets, a light emitting element provided on one side of the paper width direction to emit a light beam for liquid droplet detection, a light receiving element provided on the other side of the paper width direction to receive the light beam, a storage in which correspondence information on each of the nozzles and a scan position of the light beam when discharge of a liquid droplet from each of the nozzles is detected is stored, a controller to allow the light beam to scan according to the correspondence information, and a detector to determine presence or absence a liquid droplet discharged from each nozzle from an output of the light receiving element.
    Type: Application
    Filed: February 11, 2015
    Publication date: August 13, 2015
    Applicant: RICOH COMPANY, LTD.
    Inventors: Genichiro Kawamichi, Shigeru Morinaga, Hideharu Miki, Hiroshi Ando, Kahei Nakamura, Kazuhiro Akatsu, Hirotaka Kobayashi, Keiichi Watanabe
  • Publication number: 20150160341
    Abstract: An object detector includes a projector including a light source having a two-dimensionally arranged plurality of light emitter groups, each of the light emitter groups having a plurality of light emitters, a light receiver which receives light emitted from the projector, and reflected by an object, and a light source driver which lights on and lights off each of the light emitter groups of the light source.
    Type: Application
    Filed: November 26, 2014
    Publication date: June 11, 2015
    Inventors: Kazuhiro AKATSU, Tadashi Nakamura, Kohji Sakai