Patents by Inventor Shun Yashima

Shun Yashima 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: 20220362892
    Abstract: A flux-cored wire comprising a flux which is a core and a hoop which is an outer skin or sheath is described. The flux includes a strong deoxidizing metal element containing Mg and Al, and a fluoride powder. At least 60 mass % of a strong deoxidizing metal powder related to the strong deoxidizing metal element has a grain size of at most 150 ?m. At least 60 mass % of the fluoride powder has a grain size of at most 75 ?m. The flux is present at a concentration of 10-30 mass % relative to a total mass of the flux-cored wire. The flux-cored wire also requires a specific composition of elements.
    Type: Application
    Filed: June 9, 2020
    Publication date: November 17, 2022
    Applicant: Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)
    Inventors: Keito ISHIZAKI, Takashi YASHIMA, Shun IZUTANI
  • Publication number: 20220219266
    Abstract: The present invention relates to a flux-cored wire for positive polarity gas-shielded arc welding use, in which a flux contains a metal powder and also contains BaF2 and SrF2 and AlF3 and/or CaF2 as fluorides wherein the content of BaF2 is 1.0 to 4.5%, the content of SrF2 is 2.0% or less, the content of CaF2 is 0.45% or less and the content of AlF3 is 0.70% or less, at least one of metal elements constituting the flux and the fluorides is a strong deoxidizing metal element having a specified standard formation Gibbs energy, and the content of each of an oxide and a carbonate in the flux is 0.5% or less.
    Type: Application
    Filed: May 1, 2020
    Publication date: July 14, 2022
    Applicant: Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)
    Inventors: Naoki MUKAI, Shun IZUTANI, Takashi YASHIMA
  • Patent number: 11366416
    Abstract: A light-emitting-device head includes a first light-emitting-device arrangement including light emitting devices arranged in lines extending in a first scanning direction; a second light-emitting-device arrangement including light emitting devices arranged in lines extending in a first scanning direction, the second light-emitting-device arrangement overlapping the first light-emitting-device arrangement in a second scanning direction at least in part; an optical device that forms an electrostatic latent image by focusing light emitted from the light emitting devices on a photoconductor and exposing the photoconductor to the light; and a switching unit that switches the light-emitting-device arrangement to be lit up between the first light-emitting-device arrangement and the second light-emitting-device arrangement at a switching position defined at any position in an overlapping portion where the first light-emitting-device arrangement and the second light-emitting-device arrangement overlap each other.
    Type: Grant
    Filed: January 5, 2021
    Date of Patent: June 21, 2022
    Assignee: FUJIFILM Business Innovation Corp.
    Inventors: Shigeru Arai, Kyoji Yagi, Shun Yashima, Junichiro Mori
  • Publication number: 20220091549
    Abstract: A light-emitting-device head includes a first light-emitting-device arrangement including light emitting devices arranged in lines extending in a first scanning direction; a second light-emitting-device arrangement including light emitting devices arranged in lines extending in a first scanning direction, the second light-emitting-device arrangement overlapping the first light-emitting-device arrangement in a second scanning direction at least in part; an optical device that forms an electrostatic latent image by focusing light emitted from the light emitting devices on a photoconductor and exposing the photoconductor to the light; and a switching unit that switches the light-emitting-device arrangement to be lit up between the first light-emitting-device arrangement and the second light-emitting-device arrangement at a switching position defined at any position in an overlapping portion where the first light-emitting-device arrangement and the second light-emitting-device arrangement overlap each other.
    Type: Application
    Filed: January 5, 2021
    Publication date: March 24, 2022
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Shigeru ARAI, Kyoji YAGI, Shun YASHIMA, Junichiro MORI
  • Patent number: 10901233
    Abstract: An image forming apparatus includes an image forming section that forms a pattern image for detecting image-position displacement with respect to a lenticular lens sheet. The pattern image includes periodic images in each of which set images, each including two or more images of different shades and having a length equal to a lens pitch of the lenticular lens sheet, are arranged in a lens transverse direction of the lenticular lens sheet. The periodic images are arranged in a lens longitudinal direction of the lenticular lens sheet so as to be gradually shifted from one another in the lens transverse direction by a distance less than the lens pitch.
    Type: Grant
    Filed: April 22, 2020
    Date of Patent: January 26, 2021
    Assignee: FUJI XEROX CO., LTD.
    Inventors: Shun Yashima, Hirotaka Nomoto, Tomoya Ishizaki
  • Patent number: 8576417
    Abstract: An image-forming apparatus includes: a memory that stores a plurality of image forming modes; a contact controller that controls a status of contact between a plurality of image-forming units and an intermediate transfer member on the basis of an image forming mode selected from among the plurality of image forming modes, so that an image-forming unit used for image forming represented in the selected image forming mode is contacted with the intermediate transfer member, and another image-forming unit is moved away from the intermediate transfer member; and an image-quality adjusting unit that adjusts, if the status of contact is changed by the contact controller, an image quality of an image that is to be transferred onto the intermediate transfer member from the image-forming unit that is in contact with the intermediate transfer member.
    Type: Grant
    Filed: August 20, 2010
    Date of Patent: November 5, 2013
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Satoshi Tanaka, Matsuyuki Aoki, Makoto Hamatsu, Gen Nakajima, Yoshiki Matsuzaki, Shun Yashima
  • Patent number: 8532509
    Abstract: An image forming apparatus includes a plurality of toner-image forming units that receive image data and form electrostatic latent images on image bearing members in accordance with the image data, and form toner images of respective colors by developing the electrostatic latent images, an intermediate transfer member onto which the toner images are transferred, a transfer unit that transfers the toner images of the respective colors onto the intermediate transfer member, a controller that performs transfer control for changing a transfer pressure applied when the transfer unit transfers the toner images onto the intermediate transfer member, and a misregistration detector that detects a difference of a transfer position of each of the toner images of the respective colors on the intermediate transfer member when the transfer control is performed by the controller.
    Type: Grant
    Filed: June 9, 2010
    Date of Patent: September 10, 2013
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Shun Yashima, Yoshiki Matsuzaki
  • Patent number: 8320804
    Abstract: The image forming apparatus is provided with: a toner image carrying member that moves while carrying a toner image; a transferring member that transfers, on a recording medium, the toner image that the toner image carrying member carries; a transporting unit that transports the recording medium along a transport path that passes through a transfer region where the transferring member transfers the toner image onto the recording medium; and a controller that controls a movement speed of the toner image carrying member. The controller changes the movement speed of the toner image carrying member in accordance with a position, on the transport path, of the recording medium that the transporting unit transports.
    Type: Grant
    Filed: November 18, 2008
    Date of Patent: November 27, 2012
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Tsutomu Udaka, Kozo Tagawa, Naoto Nishi, Yoshiki Matsuzaki, Shun Yashima
  • Patent number: 8284453
    Abstract: There is provided an image processing apparatus having an image segmentation unit that divides image formation into image areas in a first direction, a random number memory that stores random numbers, a reference position determination unit that determines a reference position so as to vary in a second direction perpendicular to the first direction, a pixel determination unit that determines a pixel as a target to be subjected to correction processing of pixel insertion into or pixel reduction from each of the image areas, for the each of the image areas, according to the stored random numbers and the determined reference position, among pixels in the each of the image areas, and an image width change unit that performs the correction processing on the determined pixel to change an image width of the image information in the first direction.
    Type: Grant
    Filed: April 16, 2007
    Date of Patent: October 9, 2012
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Shun Yashima, Yoshiki Matsuzaki, Osamu Goto, Takeshi Kato, Yasuhiro Arai, Toshiyuki Kazama
  • Patent number: 8253950
    Abstract: A recording material moving device comprises: a position adjuster that moves a recording material in a direction which is parallel to a recording surface of the recording material and orthogonal to a transporting direction, in an upstream side of a recording position along the transport direction of the recording material; a reference position specifying unit that specifies a reference position; a determination unit that determines whether a range of a predetermined width centered on the reference position exceeds a movable range of the recording material within which the recording material can be moved by the position adjuster; and a controller that causes, if the determination unit determines that the movable range is not exceeded, the position adjuster to sequentially move the recording material within the movable range of the predetermined width centered on the reference position each time a condition for moving the recording material is satisfied.
    Type: Grant
    Filed: December 10, 2008
    Date of Patent: August 28, 2012
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Toshiyuki Kazama, Ryoji Watanabe, Shouichi Maeda, Makoto Ochiai, Tatsunori Izawa, Naoto Nishi, Yoshinobu Nakamura, Satoshi Kanou, Shun Yashima, Michio Tada
  • Publication number: 20110122461
    Abstract: An image-forming apparatus includes: a memory that stores a plurality of image forming modes; a contact controller that controls a status of contact between a plurality of image-forming units and an intermediate transfer member on the basis of an image forming mode selected from among the plurality of image forming modes, so that an image-forming unit used for image forming represented in the selected image forming mode is contacted with the intermediate transfer member, and another image-forming unit is moved away from the intermediate transfer member; and an image-quality adjusting unit that adjusts, if the status of contact is changed by the contact controller, an image quality of an image that is to be transferred onto the intermediate transfer member from the image-forming unit that is in contact with the intermediate transfer member.
    Type: Application
    Filed: August 20, 2010
    Publication date: May 26, 2011
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Satoshi TANAKA, Matsuyuki AOKI, Makoto HAMATSU, Gen NAKAJIMA, Yoshiki MATSUZAKI, Shun YASHIMA
  • Publication number: 20110116818
    Abstract: An image forming apparatus includes a plurality of toner-image forming units that receive image data and form electrostatic latent images on image bearing members in accordance with the image data, and form toner images of respective colors by developing the electrostatic latent images, an intermediate transfer member onto which the toner images are transferred, a transfer unit that transfers the toner images of the respective colors onto the intermediate transfer member, a controller that performs transfer control for changing a transfer pressure applied when the transfer unit transfers the toner images onto the intermediate transfer member, and a misregistration detector that detects a difference of a transfer position of each of the toner images of the respective colors on the intermediate transfer member when the transfer control is performed by the controller.
    Type: Application
    Filed: June 9, 2010
    Publication date: May 19, 2011
    Applicant: FUJI XEROX Co., Ltd.
    Inventors: Shun YASHIMA, Yoshiki MATSUZAKI
  • Patent number: 7916945
    Abstract: An image processing device includes; an image segmentation unit that divides an image information set into a plurality of image areas, the image information set forming a plurality of lines each constituted of colored pixels arrayed in a first direction, and the image information set expressing gradations forming an image as a number of the colored pixels existing in a predetermined image area; an image area shift unit that shifts the predetermined image area among the plurality of image areas in a second direction different from the first direction, relative to an image area substantially contiguous to the predetermined image area; and a pixel replacement unit that replaces the colored pixels forming part of each of the lines and existing within a predetermined distance range from the boundary, with at least one of the colored pixels intervening between the lines.
    Type: Grant
    Filed: April 2, 2007
    Date of Patent: March 29, 2011
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Yoshiki Matsuzaki, Shun Yashima, Toshiyuki Kazama
  • Patent number: 7880871
    Abstract: A recording sheet moving device includes: a moving unit that moves a recording sheet; a recording sheet specifying unit that specifies a length in the transport direction and a weight per unit area of the recording sheet; a first memory configured to record, for each of plural recording sheets, a threshold for a length in the transport direction in association with a weight per unit area; and a movement control unit that retrieves a threshold for a length on the basis of the specified weight per unit area from the first memory, and compares the retrieved threshold for a length and the specified length, to determine whether to cause the moving unit to move the recording sheet, and if it is determined that the recording sheet should be moved, causes the moving unit to move the recording sheet.
    Type: Grant
    Filed: December 16, 2008
    Date of Patent: February 1, 2011
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Toshiyuki Kazama, Michio Tada, Ryoji Watanabe, Shouichi Maeda, Makoto Ochiai, Tatsunori Izawa, Naoto Nishi, Yoshinobu Nakamura, Satoshi Kanou, Shun Yashima
  • Patent number: 7770879
    Abstract: A recording medium transport apparatus includes: plural storage units each storing a recording medium; a transport unit that transports the recording medium from one of the storage units to a recording position where an image is recorded on the recording medium; a memory that stores a reference position of a recording medium prescribed for each storage unit; a measuring unit that measures a position of the transported recording medium; and a movement unit that reads the reference position corresponding to the storage unit that stored the transported recording medium, from the memory, and moves the recording medium according to the difference between the reference position and the measured position such that the position of the recording medium approaches the reference position when the recording medium is located upstream of the recording position in the transport direction thereof.
    Type: Grant
    Filed: December 10, 2008
    Date of Patent: August 10, 2010
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Toshiyuki Kazama, Michio Tada, Ryoji Watanabe, Shouichi Maeda, Makoto Ochiai, Tatsunori Izawa, Naoto Nishi, Yoshinobu Nakamura, Satoshi Kanou, Shun Yashima
  • Publication number: 20090324305
    Abstract: The image forming apparatus is provided with: a toner image carrying member that moves while carrying a toner image; a transferring member that transfers, on a recording medium, the toner image that the toner image carrying member carries; a transporting unit that transports the recording medium along a transport path that passes through a transfer region where the transferring member transfers the toner image onto the recording medium; and a controller that controls a movement speed of the toner image carrying member. The controller changes the movement speed of the toner image carrying member in accordance with a position, on the transport path, of the recording medium that the transporting unit transports.
    Type: Application
    Filed: November 18, 2008
    Publication date: December 31, 2009
    Inventors: Tsutomu Udaka, Kozo Tagawa, Naoto Nishi, Yoshiki Matsuzaki, Shun Yashima
  • Publication number: 20090257074
    Abstract: A recording material moving device comprises: a position adjuster that moves a recording material in a direction which is parallel to a recording surface of the recording material and orthogonal to a transporting direction, in an upstream side of a recording position along the transport direction of the recording material; a reference position specifying unit that specifies a reference position; a determination unit that determines whether a range of a predetermined width centered on the reference position exceeds a movable range of the recording material within which the recording material can be moved by the position adjuster; and a controller that causes, if the determination unit determines that the movable range is not exceeded, the position adjuster to sequentially move the recording material within the movable range of the predetermined width centered on the reference position each time a condition for moving the recording material is satisfied.
    Type: Application
    Filed: December 10, 2008
    Publication date: October 15, 2009
    Inventors: Toshiyuki Kazama, Ryoji Watanabe, Shouichi Maeda, Makoto Ochiai, Tatsunori Izawa, Naoto Nishi, Yoshinobu Nakamura, Satoshi Kanou, Shun Yashima, Michio Tada
  • Publication number: 20090256308
    Abstract: A recording sheet moving device includes: a moving unit that moves a recording sheet; a recording sheet specifying unit that specifies a length in the transport direction and a weight per unit area of the recording sheet; a first memory configured to record, for each of plural recording sheets, a threshold for a length in the transport direction in association with a weight per unit area; and a movement control unit that retrieves a threshold for a length on the basis of the specified weight per unit area from the first memory, and compares the retrieved threshold for a length and the specified length, to determine whether to cause the moving unit to move the recording sheet, and if it is determined that the recording sheet should be moved, causes the moving unit to move the recording sheet.
    Type: Application
    Filed: December 16, 2008
    Publication date: October 15, 2009
    Inventors: Toshiyuki Kazama, Michio Tada, Ryoji Watanabe, Shouichi Maeda, Makoto Ochiai, Tatsunori Izawa, Naoto Nishi, Yoshinobu Nakamura, Satoshi Kanou, Shun Yashima
  • Publication number: 20090250864
    Abstract: A recording medium transport apparatus includes: plural storage units each storing a recording medium; a transport unit that transports the recording medium from one of the storage units to a recording position where an image is recorded on the recording medium; a memory that stores a reference position of a recording medium prescribed for each storage unit; a measuring unit that measures a position of the transported recording medium; and a movement unit that reads the reference position corresponding to the storage unit that stored the transported recording medium, from the memory, and moves the recording medium according to the difference between the reference position and the measured position such that the position of the recording medium approaches the reference position when the recording medium is located upstream of the recording position in the transport direction thereof.
    Type: Application
    Filed: December 10, 2008
    Publication date: October 8, 2009
    Inventors: Toshiyuki Kazama, Michio Tada, Ryoji Watanabe, Shouichi Maeda, Makoto Ochiai, Tatsunori Izawa, Naoto Nishi, Yoshinobu Nakamura, Satoshi Kanou, Shun Yashima
  • Publication number: 20080089585
    Abstract: There is provided an image processing apparatus having an image segmentation unit that divides image formation into image areas in a first direction, a random number memory that stores random numbers, a reference position determination unit that determines a reference position so as to vary in a second direction perpendicular to the first direction, a pixel determination unit that determines a pixel as a target to be subjected to correction processing of pixel insertion into or pixel reduction from each of the image areas, for the each of the image areas, according to the stored random numbers and the determined reference position, among pixels in the each of the image areas, and an image width change unit that performs the correction processing on the determined pixel to change an image width of the image information in the first direction.
    Type: Application
    Filed: April 16, 2007
    Publication date: April 17, 2008
    Inventors: Shun Yashima, Yoshiki Matsuzaki, Osamu Goto, Takeshi Kato, Yasuhiro Arai, Toshiyuki Kazama