Patents by Inventor Yoshihiko Sugiyama

Yoshihiko Sugiyama 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: 20160132016
    Abstract: Certain embodiments provide an image forming apparatus including a drum configured to include a drum surface which rotates around a shaft in a rotation direction; a blade configured to clean residual toner after a toner image on the drum surface is transferred to a transfer-receiving member; and a holding section configured to hold a lubricant arranged in the blade at the upstream side of the blade in the rotation direction and cover both ends in a longitudinal direction of the blade on the drum surface.
    Type: Application
    Filed: November 10, 2014
    Publication date: May 12, 2016
    Inventors: Susumu Takahashi, Satoshi Hatakeyama, Yoshihiko Sugiyama
  • Publication number: 20160132002
    Abstract: In accordance with one embodiment, an image forming apparatus comprises a fixing device configured to include a heating roller heated by a heating section and a pressing roller for pressing the heating roller; and a cleaning sheet configured to be stretched between a first reel and a second reel and wound on at least one of the first reel and the second reel to clean the heating roller; wherein the cleaning sheet is separated from or contacted with the heating roller by a movable member.
    Type: Application
    Filed: November 6, 2014
    Publication date: May 12, 2016
    Inventors: Satoshi Hatakeyama, Susumu Takahashi, Yoshihiko Sugiyama
  • Patent number: 9329536
    Abstract: In accordance with one embodiment, an image forming apparatus comprises a fixing device configured to include a heating roller heated by a heating section and a pressing roller for pressing the heating roller; and a cleaning sheet configured to be stretched between a first reel and a second reel and wound on at least one of the first reel and the second reel to clean the heating roller; wherein the cleaning sheet is separated from or contacted with the heating roller by a movable member.
    Type: Grant
    Filed: November 6, 2014
    Date of Patent: May 3, 2016
    Assignees: KABUSHIKI KAISHA TOSHIBA, TOSHIBA TEC KABUSHIKI KAISHA
    Inventors: Satoshi Hatakeyama, Susumu Takahashi, Yoshihiko Sugiyama
  • Patent number: 8630561
    Abstract: An image forming apparatus according to an embodiment includes an image carrier which is irradiated with a laser beam to form an electrostatic latent image, and a charging device which is disposed in parallel to the image carrier and includes an electrode that charges an electric charge to the image carrier. The charging device has a cleaning device which includes a container accommodating a cleaning member abutting an end portion of a discharge side of the electrode, moves the container along the longitudinal direction of the electrode, removes foreign matter attached to the electrode by the cleaning member, and accommodates the foreign matter in the container.
    Type: Grant
    Filed: April 29, 2011
    Date of Patent: January 14, 2014
    Assignees: Kabushiki Kaisha Toshiba, Toshiba Tec Kabushiki Kaisha
    Inventor: Yoshihiko Sugiyama
  • Patent number: 8270868
    Abstract: According to one embodiment, a method for cleaning including, scraping off, agitating, or capturing, in non-contact with a belt surface, a visualizing material present on the belt surface and fiber or powder different from the visualizing material, coming into contact with the belt surface and scraping off, agitating, or capturing the visualizing material present on the belt surface and the fiber or the powder different from the visualizing material, and being located in contact with the belt surface at predetermined pressure and scraping off the visualizing material present on the belt surface and the fiber or powder different from the visualizing material.
    Type: Grant
    Filed: July 9, 2010
    Date of Patent: September 18, 2012
    Assignees: Kabushiki Kaisha Toshiba, Toshiba Tec Kabushiki Kaisha
    Inventor: Yoshihiko Sugiyama
  • Publication number: 20110274459
    Abstract: An image forming apparatus according to an embodiment includes an image carrier which is irradiated with a laser beam to form an electrostatic latent image, and a charging device which is disposed in parallel to the image carrier and includes an electrode that charges an electric charge to the image carrier. The charging device has a cleaning device which includes a container accommodating a cleaning member abutting an end portion of a discharge side of the electrode, moves the container along the longitudinal direction of the electrode, removes foreign matter attached to the electrode by the cleaning member, and accommodates the foreign matter in the container.
    Type: Application
    Filed: April 29, 2011
    Publication date: November 10, 2011
    Applicants: Toshiba Tec Kabushiki Kaisha, Kabushiki Kaisha Toshiba
    Inventor: Yoshihiko Sugiyama
  • Publication number: 20110243625
    Abstract: According to one embodiment, an image forming apparatus includes a foreign-matter removing roller arranged in a post-process of a transfer device. The foreign-mater removing roller includes a rotatable metal shaft and a cylindrical conductive first sponge attached to the outer circumference of the metal shaft. The foreign-matter removing roller is attached a fixed distance apart from the surface of an image carrier and electrostatically attracts foreign matters adhering to the image carrier. A cleaning member scrapes off the foreign matters attracted by the foreign-matter removing roller.
    Type: Application
    Filed: March 7, 2011
    Publication date: October 6, 2011
    Applicants: Kabushiki Kaisha Toshiba, Toshiba Tec Kabushiki Kaisha
    Inventor: Yoshihiko SUGIYAMA
  • Publication number: 20110013927
    Abstract: According to one embodiment, a method for cleaning including, scraping off, agitating, or capturing, in non-contact with a belt surface, a visualizing material present on the belt surface and fiber or powder different from the visualizing material, coming into contact with the belt surface and scraping off, agitating, or capturing the visualizing material present on the belt surface and the fiber or the powder different from the visualizing material, and being located in contact with the belt surface at predetermined pressure and scraping off the visualizing material present on the belt surface and the fiber or powder different from the visualizing material.
    Type: Application
    Filed: July 9, 2010
    Publication date: January 20, 2011
    Applicants: KABUSHIKI KAISHA TOSHIBA, TOSHIBA TEC KABUSHIKI KAISHA
    Inventor: Yoshihiko SUGIYAMA
  • Publication number: 20100209158
    Abstract: According to an embodiment of the present invention, there is provided a cleaning mechanism including a scraping-off member or an agitating member configured to scrape off or agitate a visualizing material present on a surface of a photoconductive member and a fiber body or a power body different from the visualizing material, a collecting member configured to store the visualizing material and the fiber body or the powder body different from the visualizing material scraped off or agitated by the scraping-off member or the agitating member, and a removing member located along the surface of the photoconductive member and at a fixed interval to the surface of the photoconductive member in a range between the scraping-off member or the agitating member and the collecting member.
    Type: Application
    Filed: February 10, 2010
    Publication date: August 19, 2010
    Applicants: KABUSHIKI KAISHA TOSHIBA, TOSHIBA TEC KABUSHIKI KAISHA
    Inventor: Yoshihiko SUGIYAMA
  • Patent number: 6273476
    Abstract: Hollow spherical portions 3 and 4 respectively formed on both tubes 1 and 2 so provided as to face to each other are fitted to each other inside and outside and the faced tubes 1 and 2 are coupled so that they can mutually bend. Packings 5 and 5a in which a recessed portion is formed from the side in section are provided between the open ends 4a of the hollow spherical portions 3 and 4 fitted outside and the outside face of the hollow spherical portion 3 fitted inside. A lip portion 7 formed at least on one side of the recessed portion is joined to the open end face of the hollow spherical portion 4 fitted outside. And a holding member 9 provided to the open end face 4a of the hollow spherical portion 4 fitted outside is joined to the packings 5 and 5a.
    Type: Grant
    Filed: December 21, 1998
    Date of Patent: August 14, 2001
    Assignee: The Victaulic Company of Japan Limited
    Inventors: Shintaro Ikeda, Yuji Noda, Yoshihiko Sugiyama
  • Patent number: 5256856
    Abstract: This invention involves a MIG welding method for aluminum alloys to prevent the formation and deposition of black powder on or around the weldment's bead. By using pure aluminum wire or aluminum alloy wire containing less than 2.5 wt% the base of alloying components as the consumable electrode wire and using aluminum alloy wire as the filler wire 3, the consumable electrode wire 2 and the filler wire 3 are fed into the a metal bath under a certain weight ratio, so that the alloy composition of the molten metal bath is equivalent to that of the base of the black powder on the both sides of the weldment's bead can be is avoided.
    Type: Grant
    Filed: April 15, 1992
    Date of Patent: October 26, 1993
    Assignees: Kyodo Oxygen Co., Ltd., Sumitomo Light Metal Industries, Ltd.
    Inventors: Hideaki Takano, Jitsuo Nakata, Yuji Nakahara, Keizoh Nanba, Yoshihiko Sugiyama
  • Patent number: 5187525
    Abstract: An image forming apparatus includes a memory distributing unit arranged between a transfer unit and a developing unit which develops an electrostatic latent image formed on a photoconductive drum and cleans the drum surface. The distributing unit has a brush formed of bundles of electrically conductive fibers contacting the circumferential surface of the drum. A predetermined voltage is applied from a power source to the fiber bundles so that residual developing agents on the drum surface are attracted to the fiber bundles. The distributing unit includes a lining member which is formed of an insulating material and presses the brush against the drum surface to prevent the attracted developing agent from scattering from the fiber bundles.
    Type: Grant
    Filed: July 30, 1990
    Date of Patent: February 16, 1993
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Seiichiro Fushimi, Yoshihiko Sugiyama
  • Patent number: 4949895
    Abstract: A process of fixing a double-walled tubing structure to a titanium tube sheet, the tubing structure comprising a non-titanium outer tube and a titanium inner lining tube, comprising the steps of: pressure-welding a titanium collar to an end face of the outer tube to form an integral titanium end portion at one end of the outer tube; inserting the titanium lining tube in the outer tube and fixing the titanium lining tube to the outer tube in pressed contact with the inner surface of the outer tube to form the titanium-lined double-walled tubing structure; and inserting an end section of the tubing structure in a hole in the tube sheet, and welding the titanium end portion of the outer tube and an end portion of the lining tube to the tube sheet. Instead of the titanium collar being directly welded to the outer tube, an auxiliary collar made of a metal material for sound welding to the outer tube may be pressure-welded at its one end to the titanium collar, and fusion-welded at the other end to the outer tube.
    Type: Grant
    Filed: January 25, 1985
    Date of Patent: August 21, 1990
    Assignee: Sumitomo Light Metal Industries, Ltd.
    Inventors: Yoshihiko Sugiyama, Tadashi Nosetani, Keizo Namba, Hiromiti Sano
  • Patent number: D316084
    Type: Grant
    Filed: April 8, 1988
    Date of Patent: April 9, 1991
    Assignees: Matsushita Electric Industrial Co., Ltd., Solutions Are Everything, Inc.
    Inventors: Tetsuya Imamura, Benito Mishiro, Yoshihiko Sugiyama
  • Patent number: D316706
    Type: Grant
    Filed: May 18, 1989
    Date of Patent: May 7, 1991
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Tetsuya Imamura, Yoshihiko Sugiyama, Benito Mishiro
  • Patent number: D317758
    Type: Grant
    Filed: April 8, 1988
    Date of Patent: June 25, 1991
    Assignees: Matsushita Electric Industrial Co., Ltd., Solutions are Everything, Inc.
    Inventors: Benito Mishiro, Yoshihiko Sugiyama
  • Patent number: D342725
    Type: Grant
    Filed: November 15, 1991
    Date of Patent: December 28, 1993
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Tetsuji Abe, Yoshihiko Sugiyama, Katsumi Nagano
  • Patent number: D351592
    Type: Grant
    Filed: November 15, 1991
    Date of Patent: October 18, 1994
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Tetsuji Abe, Yoshihiko Sugiyama
  • Patent number: D357239
    Type: Grant
    Filed: July 23, 1993
    Date of Patent: April 11, 1995
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Masayoshi Kato, Toru Sato, Yoshihiko Sugiyama, Yoshikazu Goto, Isao Sato
  • Patent number: D359039
    Type: Grant
    Filed: August 10, 1993
    Date of Patent: June 6, 1995
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Masayoshi Kato, Toru Sato, Yoshihiko Sugiyama, Yoshikazu Goto, Isao Sato