Patents by Inventor Shigeo Fujita

Shigeo Fujita 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: 20230383463
    Abstract: A sheet manufacturing apparatus includes a pipe that supplies a material containing fibers, a supply direction change section that changes a movement direction of the material supplied from the pipe, a reducer section that is disposed downstream of the supply direction change section and decreases a movement speed of the material, and an accumulation section that is disposed downstream of the reducer section and accumulates the material to form a web.
    Type: Application
    Filed: May 24, 2023
    Publication date: November 30, 2023
    Inventors: Hirofumi NAKATA, Yuka KATO, Hirokazu YAMAGA, Shigeo FUJITA, Keigo YAMASAKI
  • Publication number: 20230383462
    Abstract: A sheet manufacturing apparatus includes a pipe that supplies a material containing fibers, a collision section with which the material moving from the pipe collides, and an accumulation section that is disposed downstream of the collision section and accumulates the material to form a web.
    Type: Application
    Filed: May 24, 2023
    Publication date: November 30, 2023
    Inventors: Hirofumi NAKATA, Keigo YAMASAKI, Yuka KATO, Hirokazu YAMAGA, Shigeo FUJITA
  • Publication number: 20230098764
    Abstract: A packaging machine includes a first supplying unit, a second supplying unit, a placing mechanism, a moving mechanism, a guide member, and a joining mechanism. The first supplying unit supplies a first packaging material. The second supplying unit supplies a second packaging material. The placing mechanism places an object to be packaged on the first packaging material supplied by the first supplying unit. The moving mechanism moves the first packaging material, with the object to be packaged placed on the first packaging material, in a direction along a first axis. The guide member guides the second packaging material onto the object to be packaged. The joining mechanism joins the first packaging material and the second packaging material together. The object to be packaged is packaged using the first packaging material and the second packaging material.
    Type: Application
    Filed: September 28, 2022
    Publication date: March 30, 2023
    Inventors: Hisashi KOIKE, Satoru YANAGI, Shigeo FUJITA, Tetsuji FUJITA
  • Patent number: 11452963
    Abstract: A dust collector includes a housing, a dust collecting bag that is installed in the housing and has an air permeability, a supply section that has a pipe coupled to the dust collecting bag, and supplies a powder into the housing via the pipe, a negative pressure generating section that generates a negative pressure in the housing, and a vibration applying section that applies a vibration to the dust collecting bag. The dust collecting bag includes a top surface, a bottom surface, and a side surface coupling the top surface and the bottom surface with each other, and a vibration transmitted to the top surface is larger than a vibration transmitted to the bottom surface.
    Type: Grant
    Filed: March 24, 2020
    Date of Patent: September 27, 2022
    Assignee: Seiko Epson Corporation
    Inventors: Hiroshi Tanaka, Shigeo Fujita, Minoru Honjo, Hidetoshi Hashizume
  • Publication number: 20220097102
    Abstract: A sorting apparatus has: a paper supply section that supplies paper; a first sensor that detects a multi-feed of the paper supplied from the paper supply section; a second sensor that detects damage to the paper; a third sensor that detects the paper as an image; first to fourth paper ejection cassettes in which the paper is stacked; and a control section that appropriately ejects the paper to one of the first to fourth paper ejection cassettes according to at least one of detection results from the first sensor, second sensor, and third sensor.
    Type: Application
    Filed: September 23, 2021
    Publication date: March 31, 2022
    Inventors: Kenta NOMURA, Shigeo FUJITA
  • Publication number: 20210361986
    Abstract: A sheet-like filter includes a first fiber that is mainly composed of polylactic acid, and a second fiber that is mainly composed of polylactic acid and has a core portion and a cover layer covering the core portion, in which the cover layer functions as a binder for fusing the first fiber and the second fiber. In addition, when a melting point of the core portion is denoted by Tm1 and a melting point of the cover layer is denoted by Tm2, it may be Tm2<Tm1.
    Type: Application
    Filed: May 18, 2021
    Publication date: November 25, 2021
    Inventors: Satomi YOSHIOKA, Naotaka HIGUCHI, Shigeo FUJITA, Shunichi SEKI, Kazuhiro ICHIKAWA, Akio ITO
  • Publication number: 20210324555
    Abstract: A sheet manufacturing apparatus includes a defibrating portion that defibrates a raw material, a mixing portion that mixes a defibrated material defibrated by the defibrating portion, a heating portion that heats a mixture mixed by the mixing portion, and a control portion that controls a temperature of the heating portion, in which the control portion sets a heating temperature of the heating portion to a temperature depending on a type of the raw material defibrated by the defibrating portion.
    Type: Application
    Filed: March 1, 2018
    Publication date: October 21, 2021
    Inventors: Kaneo YODA, Yoshiyuki NAGAI, Yuki OGUCHI, Shigeo FUJITA, Akira ARAI, Kazuhiro ICHIKAWA, Teruaki OGUCHI, Seiichi TANIGUCHI
  • Patent number: 11077581
    Abstract: A sheet manufacturing apparatus is an apparatus that heats a material containing fibers to form a sheet, and includes a heating portion that heats the material, and a control portion that controls a temperature at which the heating portion heats the material. The control portion sets a temperature of the heating portion to a first temperature in a first state where the sheet manufacturing apparatus manufactures the sheet, and sets the temperature of the heating portion to a second temperature lower than the first temperature at a predetermined timing in a second state where the sheet is not manufactured, or at a predetermined timing when a state of the sheet manufacturing apparatus is shifted to the state where the sheet is not manufactured.
    Type: Grant
    Filed: February 22, 2018
    Date of Patent: August 3, 2021
    Assignee: Seiko Epson Corporation
    Inventors: Kaneo Yoda, Yoshiyuki Nagai, Yuki Oguchi, Shigeo Fujita, Akira Arai, Kazuhiro Ichikawa, Teruaki Oguchi, Seiichi Taniguchi
  • Patent number: 11008707
    Abstract: Provided is technology improving the efficiency (productivity) of a sheet manufacturing apparatus. A sheet manufacturing apparatus 100 manufactures sheets S by heating with heaters 81 and 82 a mixture (second web W2) of resin and fiber produced by defibrating feedstock MA. The heaters 81 and 82 each have a first roller 171, a second roller 172 that holds the second web W2 with the first roller 171, and a moving mechanism 190. The moving mechanism 190 can switch the first roller 171 and second roller 172 to a position holding the second web W2, and a first roller 171 and second roller 172 are separated and do not hold the second web W2. The heaters 81 and 82 are configured as units that can removably installed to the sheet manufacturing apparatus 100.
    Type: Grant
    Filed: August 30, 2018
    Date of Patent: May 18, 2021
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Kaneo Yoda, Yoshiyuki Nagai, Yuki Oguchi, Shigeo Fujita, Akira Arai, Kazuhiro Ichikawa, Teruaki Oguchi, Seiichi Taniguchi
  • Publication number: 20200306679
    Abstract: A dust collector includes a housing, a dust collecting bag that is installed in the housing and has an air permeability, a supply section that has a pipe coupled to the dust collecting bag, and supplies a powder into the housing via the pipe, a negative pressure generating section that generates a negative pressure in the housing, and a vibration applying section that applies a vibration to the dust collecting bag. The dust collecting bag includes a top surface, a bottom surface, and a side surface coupling the top surface and the bottom surface with each other, and a vibration transmitted to the top surface is larger than a vibration transmitted to the bottom surface.
    Type: Application
    Filed: March 24, 2020
    Publication date: October 1, 2020
    Inventors: Hiroshi Tanaka, Shigeo Fujita, Minoru Honjo, Hidetoshi Hashizume
  • Patent number: 10619302
    Abstract: A sheet manufacturing apparatus includes a crusher unit, a defibrator unit, a second web forming unit, and a shaping unit. The crusher unit coarsely crushes a raw material that contains fibers into coarsely crushed pieces. The defibrator unit defibrates coarsely crushed pieces into defibrated material. The second web forming unit forms a web by accumulating defibrated material. The shaping unit forms a sheet from the web. The crusher unit is positioned vertically below the shaping unit.
    Type: Grant
    Filed: August 14, 2018
    Date of Patent: April 14, 2020
    Assignee: Seiko Epson Corporation
    Inventors: Katsuhito Gomi, Shigeo Fujita
  • Publication number: 20200101637
    Abstract: A sheet manufacturing apparatus is an apparatus that heats a material containing fibers to form a sheet, and includes a heating portion that heats the material, and a control portion that controls a temperature at which the heating portion heats the material. The control portion sets a temperature of the heating portion to a first temperature in a first state where the sheet manufacturing apparatus manufactures the sheet, and sets the temperature of the heating portion to a second temperature lower than the first temperature at a predetermined timing in a second state where the sheet is not manufactured, or at a predetermined timing when a state of the sheet manufacturing apparatus is shifted to the state where the sheet is not manufactured.
    Type: Application
    Filed: February 22, 2018
    Publication date: April 2, 2020
    Inventors: Kaneo YODA, Yoshiyuki NAGAI, Yuki OGUCHI, Shigeo FUJITA, Akira ARAI, Kazuhiro ICHIKAWA, Teruaki OGUCHI, Seiichi TANIGUCHI
  • Patent number: 10345742
    Abstract: In a sheet manufacturing apparatus which includes an installation unit on which a container that stores a powder is installed and which manufactures sheets including the powder and fibers, the installation unit includes an inlet for receiving the powder from the container, and a first shutter for opening and closing the inlet, the first shutter is capable of moving between an open position at which the inlet is opened and a closed position at which the inlet is closed in accordance with attachment and detachment of the container with respect to the installation unit, and the first shutter is provided with a plurality of shutter members and, at the open position, the plurality of shutter members are stored overlapping one another.
    Type: Grant
    Filed: October 13, 2016
    Date of Patent: July 9, 2019
    Assignee: Seiko Epson Corporation
    Inventors: Shigeo Fujita, Masayuki Kobayashi, Kaneo Yoda, Toshiaki Yamagami
  • Patent number: 10246824
    Abstract: A drum unit includes a screen with numerous apertures through which airborne material including at least fiber passes, and a cylinder section without apertures, disposed to a rotating cylinder; a housing unit encloses the screen part of the drum unit inside and contacts the cylinder section; and a forming unit forms sheets using material that passes through the apertures.
    Type: Grant
    Filed: August 28, 2014
    Date of Patent: April 2, 2019
    Assignee: Seiko Epson Corporation
    Inventors: Kazuma Miyazawa, Shigeo Fujita
  • Publication number: 20190062996
    Abstract: Provided is technology improving the efficiency (productivity) of a sheet manufacturing apparatus. A sheet manufacturing apparatus 100 manufactures sheets S by heating with heaters 81 and 82 a mixture (second web W2) of resin and fiber produced by defibrating feedstock MA. The heaters 81 and 82 each have a first roller 171, a second roller 172 that holds the second web W2 with the first roller 171, and a moving mechanism 190. The moving mechanism 190 can switch the first roller 171 and second roller 172 to a position holding the second web W2, and a first roller 171 and second roller 172 are separated and do not hold the second web W2. The heaters 81 and 82 are configured as units that can removably installed to the sheet manufacturing apparatus 100.
    Type: Application
    Filed: August 30, 2018
    Publication date: February 28, 2019
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Kaneo YODA, Yoshiyuki NAGAI, Yuki OGUCHI, Shigeo FUJITA, Akira ARAI, Kazuhiro ICHIKAWA, Teruaki OGUCHI, Seiichi TANIGUCHI
  • Publication number: 20180355556
    Abstract: A sheet manufacturing apparatus includes a crusher unit, a defibrator unit, a second web forming unit, and a shaping unit. The crusher unit coarsely crushes a raw material that contains fibers into coarsely crushed pieces. The defibrator unit defibrates coarsely crushed pieces into defibrated material. The second web forming unit forms a web by accumulating defibrated material. The shaping unit forms a sheet from the web. The crusher unit is positioned vertically below the shaping unit.
    Type: Application
    Filed: August 14, 2018
    Publication date: December 13, 2018
    Inventors: Katsuhito GOMI, Shigeo FUJITA
  • Publication number: 20180347086
    Abstract: To manufacture sheets of uniform quality, a sheet manufacturing apparatus has a drum with a plurality of holes; a housing covering the drum; a conveyor on which material including fiber that has passed through the holes accumulates as a web, and which conveys the accumulated web; a first roller that is a first roller disposed to contact the web conveyed by the conveyor, and has asperities on its outside surface; and a first seal disposed to a first wall of the first housing to contact an outside surface of the first roller.
    Type: Application
    Filed: November 18, 2016
    Publication date: December 6, 2018
    Inventors: Naotaka HIGUCHI, Shigeo FUJITA, Kazuma MIYAZAWA
  • Patent number: 10145046
    Abstract: Discharge of fiber and other particulate to the outside of a housing unit is prevented. A drum unit in which material including at least fiber passes through apertures; a conveyance unit configured to deposit the airborne material that past the drum unit as a web and convey the web; a housing unit configured to cover the drum unit, contact the web on the downstream side in the conveyance direction of the web, and contact the conveyance unit on the upstream side in the conveyance direction of the web from the downstream contact position; and a forming unit that forms a sheet using the web.
    Type: Grant
    Filed: August 28, 2014
    Date of Patent: December 4, 2018
    Assignee: Seiko Epson Corporation
    Inventors: Kazuma Miyazawa, Shigeo Fujita
  • Patent number: 10137614
    Abstract: A sheet manufacturing apparatus configured to manufacture a sheet by heating and pressurizing a material containing a fiber and an additive agent includes a supplying unit configured to supply the additive agent in air, a first tank configured to communicate with the supplying unit and store the additive agent, and a second tank configured to communicate with the first tank, store the additive agent, and be able to detach from the sheet manufacturing apparatus.
    Type: Grant
    Filed: December 30, 2015
    Date of Patent: November 27, 2018
    Assignee: Seiko Epson Corporation
    Inventors: Shigeo Fujita, Nobuhito Takahashi
  • Publication number: 20180299805
    Abstract: In a sheet manufacturing apparatus which includes an installation unit on which a container that stores a powder is installed and which manufactures sheets including the powder and fibers, the installation unit includes an inlet for receiving the powder from the container, and a first shutter for opening and closing the inlet, the first shutter is capable of moving between an open position at which the inlet is opened and a closed position at which the inlet is closed in accordance with attachment and detachment of the container with respect to the installation unit, and the first shutter is provided with a plurality of shutter members and, at the open position, the plurality of shutter members are stored overlapping one another.
    Type: Application
    Filed: October 13, 2016
    Publication date: October 18, 2018
    Inventors: Shigeo FUJITA, Masayuki KOBAYASHI, Kaneo YODA, Toshiaki YAMAGAMI