Patents by Inventor Yoshiaki Hoshino

Yoshiaki Hoshino 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).

  • Patent number: 10988855
    Abstract: A plating apparatus capable of preventing difference in an electrode potential between the pair of cathodes and a disturbance in a current distribution in Haring cell test and so on is provided. A plating apparatus (1) has an anode (12) and a pair of cathodes (13X) (13Y) which are provided in a plating bathtub (11); a plating power source (14) to supply an electric current between the anode (12) and the pair of cathodes (13X) (13Y); and a feedback circuit (21) to have an electrode potential of a first cathode (13X) equal to an electrode potential of a second cathode (13Y) while a summation of electric currents flowing through the pair of cathodes (13X) (13Y) is kept constant.
    Type: Grant
    Filed: December 28, 2016
    Date of Patent: April 27, 2021
    Assignee: YAMAMOTO-MS Co., Ltd.
    Inventors: Wataru Yamamoto, Kimiko Koiwa, Katsunori Akiyama, Masazumi Ishiguro, Yoshiaki Hoshino
  • Publication number: 20210001648
    Abstract: An image forming apparatus includes an image forming unit to form an image on a recording medium by discharging liquid droplets onto the medium; and a media heater to heat the medium by contacting a rear surface of the medium opposite a surface of the medium on which the image is formed, in which the media heater includes a contact member with a contact surface having a predetermined curvature that the medium contacts, the contact member is a roller member, and the medium closely contacts the contact surface of the contact member across an entire width of the medium in a direction perpendicular to the media conveyance direction.
    Type: Application
    Filed: September 17, 2020
    Publication date: January 7, 2021
    Applicant: RICOH COMPANY, LTD.
    Inventors: Yoshiaki HOSHINO, Kenji SATO, Hirokazu IKENOUE, Satoshi KITAOKA, Hideaki NISHIMURA, Yoko ISHII
  • Patent number: 10800187
    Abstract: An image forming apparatus includes an image forming unit to form an image on a recording medium by discharging liquid droplets onto the medium; and a media heater to heat the medium by contacting a rear surface of the medium opposite a surface of the medium on which the image is formed, in which the media heater includes a contact member with a contact surface having a predetermined curvature that the medium contacts, the contact member is a roller member, and the medium closely contacts the contact surface of the contact member across an entire width of the medium in a direction perpendicular to the media conveyance direction.
    Type: Grant
    Filed: January 17, 2018
    Date of Patent: October 13, 2020
    Assignee: RICOH COMPANY, LTD.
    Inventors: Yoshiaki Hoshino, Kenji Sato, Hirokazu Ikenoue, Satoshi Kitaoka, Hideaki Nishimura, Yoko Ishii
  • Patent number: 10730319
    Abstract: A drying device includes a drier, a gas circulator, and a concentration adjuster. The drier warms a liquid composition on a drying target object. The gas circulator circulates a gas containing a volatile component of an organic solvent warmed and volatilized by the drier to reuse the gas for drying. The concentration adjuster adjusts a concentration of the volatile component reused.
    Type: Grant
    Filed: March 18, 2019
    Date of Patent: August 4, 2020
    Assignee: Ricoh Company, Ltd.
    Inventors: Hideaki Nishimura, Yoshiaki Hoshino, Hirokazu Ikenoue, Yoshiki Yanagawa, Amika Sagara
  • Patent number: 10723119
    Abstract: A dryer for drying a drying object includes a hot air generator to generate hot air to be blown onto the drying object, a contact heater to contact and heat the drying object, and a controller to control a heating temperature of the contact heater and a temperature of the hot air. The controller controls the heating temperature of the contact heater to be above a first predetermined temperature from a start of generation of the hot air by the hot air generator until the temperature of the hot air reaches a second predetermined temperature.
    Type: Grant
    Filed: March 6, 2018
    Date of Patent: July 28, 2020
    Assignee: Ricoh Company, Ltd.
    Inventors: Yoshiaki Hoshino, Ken Onodera, Toshihiro Yoshinuma
  • Publication number: 20200023654
    Abstract: A drying device includes a plurality of guide rollers and a heater. The plurality of guide rollers is configured to contact a liquid applied face of a drying target object that is conveyed with liquid applied to the liquid applied face, while the drying target object is dried. The plurality of guide rollers includes at least one guide roller having a surface roughness of from 2 to 8. The heater is configured to heat the drying target object while the plurality of guide rollers guides the drying target object. A printer includes a liquid application device configured to apply liquid to a drying target object, and the drying device.
    Type: Application
    Filed: July 17, 2019
    Publication date: January 23, 2020
    Applicant: Ricoh Company, Ltd.
    Inventors: Yoshiaki Hoshino, Osamu Takehira, Hirokazu Ikenoue, Satoshi Kitaoka
  • Publication number: 20190352793
    Abstract: A plating apparatus capable of preventing difference in an electrode potential between the pair of cathodes and a disturbance in a current distribution in Haring cell test and so on is provided. A plating apparatus (1) has an anode (12) and a pair of cathodes (13X) (13Y) which are provided in a plating bathtub (11); a plating power source (14) to supply an electric current between the anode (12) and the pair of cathodes (13X) (13Y); and a feedback circuit (21) to have an electrode potential of a first cathode (13X) equal to an electrode potential of a second cathode (13Y) while a summation of electric currents flowing through the pair of cathodes (13X) (13Y) is kept constant.
    Type: Application
    Filed: December 28, 2016
    Publication date: November 21, 2019
    Inventors: Wataru YAMAMOTO, Kimiko KOIWA, Katsunori AKIYAMA, Masazumi ISHIGURO, Yoshiaki HOSHINO
  • Publication number: 20190283463
    Abstract: A drying device includes a drier, a gas circulator, and a concentration adjuster. The drier warms a liquid composition on a drying target object. The gas circulator circulates a gas containing a volatile component of an organic solvent warmed and volatilized by the drier to reuse the gas for drying. The concentration adjuster adjusts a concentration of the volatile component reused.
    Type: Application
    Filed: March 18, 2019
    Publication date: September 19, 2019
    Applicant: Ricoh Company, Ltd.
    Inventors: Hideaki Nishimura, Yoshiaki Hoshino, Hirokazu Ikenoue, Yoshiki Yanagawa, Amika Sagara
  • Publication number: 20180264803
    Abstract: A dryer for drying a drying object includes a hot air generator to generate hot air to be blown onto the drying object, a contact heater to contact and heat the drying object, and a controller to control a heating temperature of the contact heater and a temperature of the hot air. The controller controls the heating temperature of the contact heater to be above a first predetermined temperature from a start of generation of the hot air by the hot air generator until the temperature of the hot air reaches a second predetermined temperature.
    Type: Application
    Filed: March 6, 2018
    Publication date: September 20, 2018
    Applicant: Ricoh Company, Ltd.
    Inventors: Yoshiaki Hoshino, Ken Onodera, Toshihiro Yoshinuma
  • Publication number: 20180141348
    Abstract: An image forming apparatus includes an image forming unit to form an image on a recording medium by discharging liquid droplets onto the medium; and a media heater to heat the medium by contacting a rear surface of the medium opposite a surface of the medium on which the image is formed, in which the media heater includes a contact member with a contact surface having a predetermined curvature that the medium contacts, the contact member is a roller member, and the medium closely contacts the contact surface of the contact member across an entire width of the medium in a direction perpendicular to the media conveyance direction.
    Type: Application
    Filed: January 17, 2018
    Publication date: May 24, 2018
    Applicant: RICOH COMPANY, LTD.
    Inventors: Yoshiaki HOSHINO, Kenji SATO, Hirokazu IKENOUE, Satoshi KITAOKA, Hideaki NISHIMURA, Yoko ISHII
  • Patent number: 9902171
    Abstract: An image forming apparatus includes an image forming unit to form an image on a recording medium by discharging liquid droplets onto the medium; and a media heater to heat the medium by contacting a rear surface of the medium opposite a surface of the medium on which the image is formed, in which the media heater includes a contact member with a contact surface having a predetermined curvature that the medium contacts, the contact member is a roller member, and the medium closely contacts the contact surface of the contact member across an entire width of the medium in a direction perpendicular to the media conveyance direction.
    Type: Grant
    Filed: March 3, 2017
    Date of Patent: February 27, 2018
    Assignee: RICOH COMPANY, LTD.
    Inventors: Yoshiaki Hoshino, Kenji Sato, Hirokazu Ikenoue, Satoshi Kitaoka, Hideaki Nishimura, Yoko Ishii
  • Patent number: 9731516
    Abstract: An image forming apparatus includes an image forming unit, a drier, and a heater temperature control. The image forming unit includes nozzles to discharge droplets onto a web medium to form an image on the web medium. The drier includes a plurality of heaters over which the web medium is stretched to form an arc-shaped feed path. The heater temperature control is configured to control a temperature of an upstream heater of the plurality of heaters on the feed path to be higher than a temperature of a downstream heater of the plurality of heaters on the feed path.
    Type: Grant
    Filed: March 10, 2016
    Date of Patent: August 15, 2017
    Assignee: Ricoh Company, Ltd.
    Inventor: Yoshiaki Hoshino
  • Publication number: 20170173974
    Abstract: An image forming apparatus includes an image forming unit to form an image on a recording medium by discharging liquid droplets onto the medium; and a media heater to heat the medium by contacting a rear surface of the medium opposite a surface of the medium on which the image is formed, in which the media heater includes a contact member with a contact surface having a predetermined curvature that the medium contacts, the contact member is a roller member, and the medium closely contacts the contact surface of the contact member across an entire width of the medium in a direction perpendicular to the media conveyance direction.
    Type: Application
    Filed: March 3, 2017
    Publication date: June 22, 2017
    Applicant: RICOH COMPANY, LTD.
    Inventors: Yoshiaki HOSHINO, Kenji SATO, Hirokazu IKENOUE, Satoshi KITAOKA, Hideaki NISHIMURA, Yoko ISHII
  • Patent number: 9616681
    Abstract: An image forming apparatus includes an image forming unit to form an image on a recording medium by discharging liquid droplets onto the medium; and a media heater to heat the medium by contacting a rear surface of the medium opposite a surface of the medium on which the image is formed, in which the media heater includes a contact member with a contact surface having a predetermined curvature that the medium contacts, the contact member is a roller member, and the medium closely contacts the contact surface of the contact member across an entire width of the medium in a direction perpendicular to the media conveyance direction.
    Type: Grant
    Filed: September 30, 2015
    Date of Patent: April 11, 2017
    Assignee: RICOH COMPANY, LTD.
    Inventors: Yoshiaki Hoshino, Kenji Sato, Hirokazu Ikenoue, Satoshi Kitaoka, Hideaki Nishimura, Yoko Ishii
  • Publication number: 20160263914
    Abstract: An image forming apparatus includes an image forming unit, a drier, and a heater temperature control. The image forming unit includes nozzles to discharge droplets onto a web medium to form an image on the web medium. The drier includes a plurality of heaters over which the web medium is stretched to form an arc-shaped feed path. The heater temperature control is configured to control a temperature of an upstream heater of the plurality of heaters on the feed path to be higher than a temperature of a downstream heater of the plurality of heaters on the feed path.
    Type: Application
    Filed: March 10, 2016
    Publication date: September 15, 2016
    Inventor: Yoshiaki HOSHINO
  • Publication number: 20160101635
    Abstract: An image forming apparatus includes an image forming unit to form an image on a recording medium by discharging liquid droplets onto the medium; and a media heater to heat the medium by contacting a rear surface of the medium opposite a surface of the medium on which the image is formed, in which the media heater includes a contact member with a contact surface having a predetermined curvature that the medium contacts, the contact member is a roller member, and the medium closely contacts the contact surface of the contact member across an entire width of the medium in a direction perpendicular to the media conveyance direction.
    Type: Application
    Filed: September 30, 2015
    Publication date: April 14, 2016
    Applicant: RICOH COMPANY, LTD.
    Inventors: Yoshiaki HOSHINO, Kenji SATO, Hirokazu IKENOUE, Satoshi KITAOKA, Hideaki NISHIMURA, Yoko ISHll
  • Patent number: 8982420
    Abstract: An image processing method includes dividing a first image into regions according to content of the first image; generating a second image by converting a gradation of pixels of the first image into a gradation of pixels expressible in an image forming apparatus for each region; generating a piece of simulation information of a result of the image forming/outputting process based on the second image and nozzle characteristic information of the image forming apparatus; calculating an error between the first image and a third image for each of the regions, the third image being obtained by converting the piece of simulation information with the gradation of pixels of the first image; and deciding one of the second images as rendering information used to cause the image forming apparatus to perform an image forming/outputting process, based on the calculated errors between the first image and the third images.
    Type: Grant
    Filed: December 4, 2013
    Date of Patent: March 17, 2015
    Assignee: Ricoh Company, Limited
    Inventors: Yasunobu Takagi, Toshihito Kamei, Yoshiaki Hoshino, Taku Satoh
  • Patent number: 8794523
    Abstract: In an image processing apparatus, after a rasterizer checks resolution of raster data, if the resolution of the raster data is lower than a predefined resolution, a barcode detector analyzes the raster data and detects a barcode area. If there is a barcode area, a barcode direction determining unit determines barcode direction, and a resolution convertor enhances resolution of the barcode on black planes in a direction perpendicular to the bar direction of the barcode.
    Type: Grant
    Filed: August 8, 2013
    Date of Patent: August 5, 2014
    Assignee: Ricoh Company, Ltd.
    Inventor: Yoshiaki Hoshino
  • Publication number: 20140153056
    Abstract: An image processing method includes dividing a first image into regions according to content of the first image; generating a second image by converting a gradation of pixels of the first image into a gradation of pixels expressible in an image forming apparatus for each region; generating a piece of simulation information of a result of the image forming/outputting process based on the second image and nozzle characteristic information of the image forming apparatus; calculating an error between the first image and a third image for each of the regions, the third image being obtained by converting the piece of simulation information with the gradation of pixels of the first image; and deciding one of the second images as rendering information used to cause the image forming apparatus to perform an image forming/outputting process, based on the calculated errors between the first image and the third images.
    Type: Application
    Filed: December 4, 2013
    Publication date: June 5, 2014
    Inventors: Yasunobu TAKAGI, Toshihito Kamei, Yoshiaki Hoshino, Taku Satoh
  • 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