Patents by Inventor Shigetoshi Hosaka

Shigetoshi Hosaka 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: 20240149592
    Abstract: An image forming apparatus includes carriages each carrying a liquid discharge head and circuitry. The circuitry acquires divided print data having a size extended in a direction corresponding to a conveyance direction of a recording medium from a size corresponding to a length of a nozzle array of the liquid discharge head in the conveyance direction; identifies, for the liquid discharge head of a particular carriage, from the divided print data, a shifted data portion having a size corresponding to the length of the nozzle array and being shifted by a number of pixels corresponding to an amount of deviation from a target installation position of the particular carriage in the conveyance direction; controls the liquid discharge head to discharge ink to the recording medium using the shifted data portion; and controls the particular carriage to move in a main scanning direction based on the shifted data portion.
    Type: Application
    Filed: September 6, 2023
    Publication date: May 9, 2024
    Applicant: Ricoh Company, Ltd.
    Inventor: Shigetoshi HOSAKA
  • Patent number: 11926165
    Abstract: An image forming method is provided that includes discharging, from a liquid discharged head, a white ink onto a recording medium to form a first layer having a first width, and a color ink onto the first layer to form a second layer having a second width. When the second width is equal to or smaller than a threshold, the first width is equal to the second width, and when the second width is larger than the threshold, the first width is smaller than the second width.
    Type: Grant
    Filed: March 16, 2022
    Date of Patent: March 12, 2024
    Assignee: Ricoh Company, Ltd.
    Inventor: Shigetoshi Hosaka
  • Publication number: 20230226815
    Abstract: A liquid discharge apparatus includes: an applicator configured to apply a first liquid onto a surface of a fabric medium to increase repellency of the surface of the fabric medium; a head configured to discharge a second liquid onto the surface of the fabric medium, onto which the first liquid has been discharged; a detector configured to detect the repellency of the surface of the fabric medium on which the first liquid has been discharged; circuitry configured to: determine whether the repellency detected by the detector is equal to or larger than a predetermined repellency; and control the applicator to further apply the first liquid onto the surface of the fabric medium in response to a determination in which the repellency detected by the detector is lower than the predetermined repellency.
    Type: Application
    Filed: November 28, 2022
    Publication date: July 20, 2023
    Applicant: Ricoh Company, Ltd.
    Inventor: Shigetoshi Hosaka
  • Publication number: 20220297443
    Abstract: An image forming method is provided that includes discharging, from a liquid discharged head, a white ink onto a recording medium to form a first layer having a first width, and a color ink onto the first layer to form a second layer having a second width. When the second width is equal to or smaller than a threshold, the first width is equal to the second width, and when the second width is larger than the threshold, the first width is smaller than the second width.
    Type: Application
    Filed: March 16, 2022
    Publication date: September 22, 2022
    Applicant: Ricoh Company, Ltd.
    Inventor: Shigetoshi Hosaka
  • Patent number: 10377151
    Abstract: Provided is an image forming method including an image forming step of discharging liquid droplets of an active-energy-ray-curable ink onto a base to form a liquid-droplet film and irradiating the liquid-droplet film with an active energy ray to form a cured film, to form a laminated cured product in which the cured film is laminated on the base, wherein an elongation rate of the laminated cured product obtained according to a formula below is 60 percent or greater. Elongation rate=[(length after tensile test?length before tensile test)/(length before tensile test)]×100 Length before tensile test is a length of the laminated cured product obtained by laminating the cured film on the base to have an average thickness of 30 ?m, and length after tensile test is a length of the laminated cured product after elongated with a tensile tester at a tensile speed of 20 mm/minute at 180 degrees C.
    Type: Grant
    Filed: January 23, 2017
    Date of Patent: August 13, 2019
    Assignee: Ricoh Company, Ltd.
    Inventor: Shigetoshi Hosaka
  • Patent number: 9734438
    Abstract: An image processing method generates image data of an image made up of a plurality of dots and having resolution in a first direction and resolution in a second direction. The second direction intersects the first direction. The resolution in the first direction is different from the resolution in the second direction. The image processing method includes performing contour portion correction including adding a dot at a correction target pixel, the correction target pixel being a pixel adjacent to a step-like contour portion in the image, and when a dot is arranged at a pixel adjacent to a pixel of interest adjacent to the correction target pixel, deleting the dot at the pixel of interest.
    Type: Grant
    Filed: March 2, 2015
    Date of Patent: August 15, 2017
    Assignee: RICOH COMPANY, LTD.
    Inventor: Shigetoshi Hosaka
  • Publication number: 20170210144
    Abstract: Provided is an image forming method including an image forming step of discharging liquid droplets of an active-energy-ray-curable ink onto a base to form a liquid-droplet film and irradiating the liquid-droplet film with an active energy ray to form a cured film, to form a laminated cured product in which the cured film is laminated on the base, wherein an elongation rate of the laminated cured product obtained according to a formula below is 60 percent or greater. Elongation rate=[(length after tensile test?length before tensile test)/(length before tensile test)]×100 Length before tensile test is a length of the laminated cured product obtained by laminating the cured film on the base to have an average thickness of 30 ?m, and length after tensile test is a length of the laminated cured product after elongated with a tensile tester at a tensile speed of 20 mm/minute at 180 degrees C.
    Type: Application
    Filed: January 23, 2017
    Publication date: July 27, 2017
    Inventor: Shigetoshi HOSAKA
  • Patent number: 9576228
    Abstract: An image processing apparatus includes an input unit that inputs printing information containing image data and a conversion unit that, when the pixel value of the top pixel from among successive N pixels (N is an integer equal to or larger than 2) of the image data is a specific value, sets a pixel having a pixel value that is not the specific value as a new top pixel from among pixels from a pixel adjacent to the to pixel to the N-th pixel, refers to data of the new top pixel to the N-th pixel, and performs a conversion into pixel values that are calculated with coefficient values according to the magnitude of the pixel values.
    Type: Grant
    Filed: July 8, 2015
    Date of Patent: February 21, 2017
    Assignee: RICOH COMPANY, LTD.
    Inventor: Shigetoshi Hosaka
  • Patent number: 9457561
    Abstract: An image forming apparatus includes an image forming device, a threshold comparator, a first image compensator, and a second image compensator. The first compensator executes a processing of, for at least a pixel value less than a threshold, setting a value of stopping discharge of a droplet from a defective nozzle in converting multi-valued data of an input image into n-value data, and spreading a quantization error due to setting the value, to neighboring pixels of a pixel corresponding to a defective nozzle. The second compensator executes a processing of replacing a smaller dot among dots around the defective nozzle with a larger dot by pattern matching using a mask pattern in accordance with a dot size and placement around the defective nozzle, on condition that as a result of comparison of the comparator, the pixel value corresponding to the defective nozzle is equal to or more than the threshold.
    Type: Grant
    Filed: February 12, 2016
    Date of Patent: October 4, 2016
    Assignee: RICOH COMPANY, LTD.
    Inventor: Shigetoshi Hosaka
  • Publication number: 20160236462
    Abstract: An image forming apparatus includes an image forming device, a threshold comparator, a first image compensator, and a second image compensator. The first compensator executes a processing of, for at least a pixel value less than a threshold, setting a value of stopping discharge of a droplet from a defective nozzle in converting multi-valued data of an input image into n-value data, and spreading a quantization error due to setting the value, to neighboring pixels of a pixel corresponding to a defective nozzle. The second compensator executes a processing of replacing a smaller dot among dots around the defective nozzle with a larger dot by pattern matching using a mask pattern in accordance with a dot size and placement around the defective nozzle, on condition that as a result of comparison of the comparator, the pixel value corresponding to the defective nozzle is equal to or more than the threshold.
    Type: Application
    Filed: February 12, 2016
    Publication date: August 18, 2016
    Applicant: RICOH COMPANY, LTD.
    Inventor: Shigetoshi Hosaka
  • Patent number: 9266146
    Abstract: A film forming method performs a film forming process on a target object having on a surface thereof an insulating layer. The film forming method includes a first thin film forming step of forming a first thin film containing a first metal, an oxidation step of forming an oxide film by oxidizing the first thin film, and a second thin film forming step of forming a second thin film containing a second metal on the oxide film.
    Type: Grant
    Filed: June 24, 2011
    Date of Patent: February 23, 2016
    Assignee: TOKYO ELECTRON LIMITED
    Inventors: Kenji Matsumoto, Shigetoshi Hosaka, Hitoshi Itoh
  • Publication number: 20160026904
    Abstract: An image processing apparatus includes an input unit that inputs printing information containing image data and a conversion unit that, when the pixel value of the top pixel from among successive N pixels (N is an integer equal to or larger than 2) of the image data is a specific value, sets a pixel having a pixel value that is not the specific value as a new top pixel from among pixels from a pixel adjacent to the to pixel to the N-th pixel, refers to data of the new top pixel to the N-th pixel, and performs a conversion into pixel values that are calculated with coefficient values according to the magnitude of the pixel values.
    Type: Application
    Filed: July 8, 2015
    Publication date: January 28, 2016
    Applicant: RICOH COMPANY, LTD.
    Inventor: Shigetoshi Hosaka
  • Publication number: 20150254536
    Abstract: An image processing method generates image data of an image made up of a plurality of dots and having resolution in a first direction and resolution in a second direction. The second direction intersects the first direction. The resolution in the first direction is different from the resolution in the second direction. The image processing method includes performing contour portion correction including adding a dot at a correction target pixel, the correction target pixel being a pixel adjacent to a step-like contour portion in the image, and when a dot is arranged at a pixel adjacent to a pixel of interest adjacent to the correction target pixel, deleting the dot at the pixel of interest.
    Type: Application
    Filed: March 2, 2015
    Publication date: September 10, 2015
    Applicant: RICOH COMPANY, LTD.
    Inventor: Shigetoshi Hosaka
  • Patent number: 8865590
    Abstract: A film forming method is disclosed in which a thin film comprising manganese is formed on an object to be processed which has, on a surface thereof, an insulating layer constituted of a low-k film and having a recess. The method comprises a hydrophilization step in which the surface of the insulating layer is hydrophilized to make the surface hydrophilic and a thin-film formation step in which a thin film containing manganese is formed on the surface of the hydrophilized insulating layer by performing a film forming process using a manganese-containing material gas on the surface of the hydrophilized insulating layer. Thus, a thin film comprising manganese, e.g., an MnOx film, is effectively formed on the surface of the insulating layer constituted of a low-k film, which has a low dielectric constant.
    Type: Grant
    Filed: June 16, 2010
    Date of Patent: October 21, 2014
    Assignees: Tokyo Electron Limited, National University Corporation Tohoku University
    Inventors: Kenji Matsumoto, Hitoshi Itoh, Hidenori Miyoshi, Shigetoshi Hosaka, Hiroshi Sato, Koji Neishi, Junichi Koike
  • Patent number: 8797591
    Abstract: An image forming apparatus shifts dots of a recording dot pattern by half of a dot pitch in a main scanning direction to generate a shift dot pattern, corrects a jagged outline of the shift dot pattern caused by shifted dots using correction dots to generate a corrected shift dot pattern, and determines an increased number of ink droplets to be additionally ejected from one or more of a plurality of nozzles to form the shifted dot or the correction dot of the corrected shift dot pattern with an increased dot size, based on an estimated shift value indicating the displacement in landing position of ink droplets forming the dot of the recording dot pattern.
    Type: Grant
    Filed: June 6, 2012
    Date of Patent: August 5, 2014
    Assignee: Ricoh Company, Ltd.
    Inventor: Shigetoshi Hosaka
  • Patent number: 8730524
    Abstract: A disclosed image processing apparatus performs an image processing operation to execute double-side printing on both sides of an image forming medium. The image processing apparatus forms a dot font including a dot pattern of a character in a character image that has undergone a halftone process using a predetermined coefficient for mitigating show-through when the double-side printing is performed; forms a correction dot for making a correction to reduce step-like irregularities along an outline portion of the character in the character image, which correction dot is formed based on an arrangement position, a color, and a dot size of the correction dot for reproducing a gradation that has undergone the halftone process using said predetermined coefficient; and combines the dot font and the correction dot.
    Type: Grant
    Filed: August 5, 2008
    Date of Patent: May 20, 2014
    Assignee: Ricoh Company, Ltd.
    Inventors: Yoshiaki Hoshino, Takashi Kimura, Masanori Hirano, Taku Satoh, Shigetoshi Hosaka, Masakazu Yoshida, Naoki Nakano, Shigetaka Sakakibara
  • Publication number: 20130136859
    Abstract: A film forming method performs a film forming process on a target object having on a surface thereof an insulating layer. The film forming method includes a first thin film forming step of forming a first thin film containing a first metal, an oxidation step of forming an oxide film by oxidizing the first thin film, and a second thin film forming step of forming a second thin film containing a second metal on the oxide film.
    Type: Application
    Filed: June 24, 2011
    Publication date: May 30, 2013
    Applicant: TOKYO ELECTRON LIMITED
    Inventors: Kenji Matsumoto, Shigetoshi Hosaka, Hitoshi Itoh
  • Publication number: 20120314259
    Abstract: An image forming apparatus shifts dots of a recording dot pattern by half of a dot pitch in a main scanning direction to generate a shift dot pattern, corrects a jagged outline of the shift dot pattern caused by shifted dots using correction dots to generate a corrected shift dot pattern, and determines an increased number of ink droplets to be additionally ejected from one or more of a plurality of nozzles to form the shifted dot or the correction dot of the corrected shift dot pattern with an increased dot size, based on an estimated shift value indicating the displacement in landing position of ink droplets forming the dot of the recording dot pattern.
    Type: Application
    Filed: June 6, 2012
    Publication date: December 13, 2012
    Applicant: RICOH COMPANY, LTD.
    Inventor: Shigetoshi Hosaka
  • Publication number: 20120160833
    Abstract: A heat treatment apparatus for heat treating a plurality of substrates, includes: a processing chamber which accommodates the plurality of substrates to be subjected to the heat treatment; a substrate holding member which holds the plurality of substrates in a vertical arrangement and is capable of being loaded into/unloaded from the processing chamber; an induction heating coil which forms an induction magnetic field for induction heating in the processing chamber; a high frequency power supply which applies high frequency power to the induction heating coil; and induction heating bodies including spiral-shaped parts which are respectively installed to overlap with the plurality of substrates in the processing chamber and generate heat by a flow of induction current generated by applying the high frequency power to the induction heating coil.
    Type: Application
    Filed: December 28, 2011
    Publication date: June 28, 2012
    Applicant: TOKYO ELECTRON LIMITED
    Inventors: Ikuo SAWADA, Shigetoshi HOSAKA
  • Publication number: 20120135612
    Abstract: A film forming method is disclosed in which a thin film comprising manganese is formed on an object to be processed which has, on a surface thereof, an insulating layer constituted of a low-k film and having a recess. The method comprises a hydrophilization step in which the surface of the insulating layer is hydrophilized to make the surface hydrophilic and a thin-film formation step in which a thin film containing manganese is formed on the surface of the hydrophilized insulating layer by performing a film forming process using a manganese-containing material gas on the surface of the hydrophilized insulating layer. Thus, a thin film comprising manganese, e.g., an MnOx film, is effectively formed on the surface of the insulating layer constituted of a low-k film, which has a low dielectric constant.
    Type: Application
    Filed: June 16, 2010
    Publication date: May 31, 2012
    Applicants: NATIONAL UNIVERSITY CORPORATION TOHOKU UNIVERSITY, TOKYO ELECTRON LIMITED
    Inventors: Kenji Matsumoto, Hitoshi Itoh, Hidenori Miyoshi, Shigetoshi Hosaka, Hiroshi Sato, Koji Neishi, Junichi Koike