Patents by Inventor Keisuke Haba

Keisuke Haba 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: 7771038
    Abstract: A printing apparatus is provided. The printing apparatus forms a dot in a desired position of a printing sheet by ejecting an ink droplet from a nozzle. A static electricity eliminating mechanism eliminates static electricity generated on the printing sheet by a conductive portion that is arranged in a position to which the ink droplet is ejected from the nozzle or an upstream side of such position on a path through which the printing sheet passes. The conductive portion is formed in at least one of a sheet feed roller and an idle roller that carry the printing sheet. The sheet feed roller or the idle roller is formed by coating a predetermined insulating coating on a surface of a conductive rod-shaped member. The conductive portion is formed by stripping off a part of the coating on the sheet feed roller or the idle roller.
    Type: Grant
    Filed: October 2, 2003
    Date of Patent: August 10, 2010
    Assignee: Seiko Epson Corporation
    Inventors: Midori Araya, Keisuke Haba, Hajime Wada, Naruhiko Katagiri, Yu Shinagawa
  • Patent number: 7204577
    Abstract: A liquid ejecting head is operable to move in a first direction. A platen is opposed to the liquid ejecting head to support an object to which a liquid droplet is ejected from the liquid ejecting head and to define a gap between the liquid ejecting head and the object. The platen is formed with a groove hole to which a liquid droplet deviated from an edge of the object is disposed, and through holes formed in a bottom portion of the groove hole and arranged in the first direction. A tray member is arranged below the platen to receive liquid dropped through the through holes. A first liquid absorber is provided in the groove hole. A second liquid absorber is provided in the tray member. At least one liquid leading member extends through at least one of the through holes to lead liquid absorbed by the first liquid absorber to the second liquid absorber.
    Type: Grant
    Filed: June 1, 2004
    Date of Patent: April 17, 2007
    Assignee: Seiko Epson Corporaion
    Inventors: Masatomo Kanamitsu, Naruhiko Katagiri, Hajime Wada, Keisuke Haba, Midori Araya, Masahiro Isono, Hikaru Kobayashi, Kazuhisa Takeda, Kenjiro Ishihara, Seiji Tezuka, Satoshi Kaneta, Takashi Sato
  • Publication number: 20060109325
    Abstract: In order to prevent the event that a printing sheet is smudged with a micro ink droplet, in a printing apparatus that forms a dot in a desired position of the printing sheet by ejecting the ink droplet from a nozzle, a static electricity eliminating mechanism (a sheet feed roller 65 and an earthing spring member 100) for eliminating static electricity generated on the printing sheet 50 is provided such that the ink droplet is not adsorbed in an unintended position by the influence of static electricity generated on the printing sheet 50. Therefore, since the static electricity generated on the printing sheet 50 can be eliminated by earthing the apparatus via the sheet feed roller 65 and the earthing spring member 100, the ink droplet can be prevented from being adsorbed in the unintended position.
    Type: Application
    Filed: October 2, 2003
    Publication date: May 25, 2006
    Inventors: Midori Araya, Keisuke Haba, Hajime Wada, Naruhiko Katagiri, Yu Shinagawa
  • Patent number: 6910757
    Abstract: A liquid ejecting head is operable to move in a first direction. A platen is opposed to the liquid ejecting head to support an object to which a liquid droplet is ejected from the liquid ejecting head and to define a gap between the liquid ejecting head and the object. The platen is formed with a groove hole to which a liquid droplet deviated from an edge of the object is disposed, and through holes formed in a bottom portion of the groove hole and arranged in the first direction. A tray member is arranged below the platen to receive liquid dropped through the through holes. A first liquid absorber is provided in the groove hole. A second liquid absorber is provided in the tray member. At least one liquid leading member extends through at least one of the through holes to lead liquid absorbed by the first liquid absorber to the second liquid absorber.
    Type: Grant
    Filed: June 11, 2003
    Date of Patent: June 28, 2005
    Assignee: Seiko Epson Corporation
    Inventors: Masatomo Kanamitsu, Naruhiko Katagiri, Hajime Wada, Keisuke Haba, Midori Araya, Masahiro Isono
  • Publication number: 20050062794
    Abstract: A liquid ejecting head is operable to move in a first direction. A platen is opposed to the liquid ejecting head to support an object to which a liquid droplet is ejected from the liquid ejecting head and to define a gap between the liquid ejecting head and the object. The platen is formed with a groove hole to which a liquid droplet deviated from an edge of the object is disposed, and through holes formed in a bottom portion of the groove hole and arranged in the first direction. A tray member is arranged below the platen to receive liquid dropped through the through holes. A first liquid absorber is provided in the groove hole. A second liquid absorber is provided in the tray member. At least one liquid leading member extends through at least one of the through holes to lead liquid absorbed by the first liquid absorber to the second liquid absorber.
    Type: Application
    Filed: June 1, 2004
    Publication date: March 24, 2005
    Inventors: Masatomo Kanamitsu, Naruhiko Katagiri, Hajime Wada, Keisuke Haba, Midori Araya, Masahiro Isono, Hikaru Kobayashi, Kazuhisa Takeda, Kenjiro Ishihara, Seiji Tezuka, Satoshi Kaneta, Takashi Sato
  • Publication number: 20040051755
    Abstract: A liquid ejecting head is operable to move in a first direction. A platen is opposed to the liquid ejecting head to support an object to which a liquid droplet is ejected from the liquid ejecting head and to define a gap between the liquid ejecting head and the object. The platen is formed with a groove hole to which a liquid droplet deviated from an edge of the object is disposed, and through holes formed in a bottom portion of the groove hole and arranged in the first direction. A tray member is arranged below the platen to receive liquid dropped through the through holes. A first liquid absorber is provided in the groove hole. A second liquid absorber is provided in the tray member. At least one liquid leading member extends through at least one of the through holes to lead liquid absorbed by the first liquid absorber to the second liquid absorber.
    Type: Application
    Filed: June 11, 2003
    Publication date: March 18, 2004
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Masatomo Kanamitsu, Naruhiko Katagiri, Hajime Wada, Keisuke Haba, Midori Araya, Masahiro Isono