Patents by Inventor Yuji Nakagaki

Yuji Nakagaki 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: 20110013204
    Abstract: An inkjet printer comprises a platen roller (22) for holding a print medium (50), a print head (12) performing printing at a print position by ejecting ink from nozzle holes toward the print medium (50) held by the platen roller (22), a supporting member (18) for supporting the print head (12), and a pressing section for pressing the print head (12) against the supporting member (18). The supporting member (18) is disposed at a position facing opposite ends of the print head (12). At the time of printing, the print head (12) is pressed against the supporting member (18) and thus vibration of the print head (12) is suppressed.
    Type: Application
    Filed: July 2, 2008
    Publication date: January 20, 2011
    Inventor: Yuji Nakagaki
  • Publication number: 20100182374
    Abstract: A printer comprises a platen roller (22), a print head (12) that ejects ink from nozzle holes to a print medium held by the platen roller (22), a maintenance mechanism (13) that cleans the print head (12), and an ejected ink receptacle (18) that absorbs and holds ink ejected and discarded from the print head (12) by the spit operation. The ejected ink receptacle (18) is placed on the side of the platen roller (22) opposite to the side where the maintenance mechanism (13) exists. The ejected ink receptacle (18) comprises a replaceably provided absorbent pad. When the print operation temporarily halts, the print head (12) moves to a position where it opposes the ejected ink receptacle (18) and performs the spit operation for ejecting and discarding ink inside the nozzle.
    Type: Application
    Filed: June 6, 2008
    Publication date: July 22, 2010
    Applicant: Seiko Precision Inc.
    Inventors: Yuji Nakagaki, Yohei Ogura
  • Publication number: 20100177333
    Abstract: When an encoder (30) detects stopping of feeding of a print medium (50), a control unit (40) moves the position of a print head in a feed direction (Y direction) of the print medium (50) by a predetermined distance corresponding to deviation caused when printing is resumed. When the encoder (30) detects resumption of feeding of the print medium (50), the control unit (40) causes the print head to eject ink at a position to which the print head is moved in the feed direction, thereby resuming printing.
    Type: Application
    Filed: June 5, 2008
    Publication date: July 15, 2010
    Applicant: SEIKO Precision Inc.
    Inventor: Yuji Nakagaki
  • Publication number: 20100107561
    Abstract: A controller that controls a registered mark sensor stores, in a storing unit, a registered mark setting (239) which indicates a setting of the detecting sensitivity of the registered mark sensor in association with a bar code number (231). Upon reception of the bar code number (231) from a bar code reader, the controller reads out the registered mark setting (239) associated with the bar code number (231). Then the controller sets the registered mark sensor to the detecting sensitivity associated with the registered mark setting (239) thus read out.
    Type: Application
    Filed: June 6, 2008
    Publication date: May 6, 2010
    Applicant: SEIKO PRECISION INC.
    Inventors: Yuji Nakagaki, Kazue Shirota, Masao Miura
  • Publication number: 20090244160
    Abstract: A printer includes: a print head for ejecting ink on a print medium; a drying portion for blowing hot air to the printed print medium so as to expedite drying of the ink applied on the printed print medium, the drying portion including a blowing amount changing portion changeable a blowing amount of the hot air blown to the print medium; a detecting portion for detecting a feeding speed of the print medium; and a controller unit for controlling the blowing amount changing portion in response to the feeding speed of the print medium detected by the detecting portion.
    Type: Application
    Filed: June 8, 2009
    Publication date: October 1, 2009
    Applicant: SEIKO PRECISION INC.
    Inventor: Yuji NAKAGAKI
  • Patent number: 6695496
    Abstract: A dot printer not using any type, nor requiring any ink ribbon has an ink roller 1, a platen 2 having an outer surface coated with ink by contacting the ink roller 1, and a printing head 3 facing the platen 2 in an appropriately spaced apart relation thereto. The printing head 3 is a dot impact type printing head having a plurality of printing wires caused to project selectively to form letters, and a recording medium 6 is conveyed between the platen 2 and the printing head 3 to have printing made thereon by the printing head 3. A protective film 8 is employed between the printing head 3 and the recording medium 6.
    Type: Grant
    Filed: January 11, 2001
    Date of Patent: February 24, 2004
    Assignee: Seiko Precision Inc.
    Inventors: Yuji Nakagaki, Mitsuharu Shishido
  • Patent number: 6558055
    Abstract: The present invention is directed toward a printer having a ribbon guide capable of reflecting light emitted from a paper detection sensor away from the paper detection sensor in the absence of a printing paper. As a result, the possibility of erroneous recognition of paper detection is eliminated. There are provided a print head 1, a ribbon guide 3 attached to the print head, and a reflection-type paper detection sensor 4 arranged on a side of the platen in a manner opposed to a printing paper P passing between the platen and the ribbon guide 3 to emit light for detecting the printing paper. The ribbon guide 3 is formed with sloped surfaces 3b and 3d that are inclined relative to a surface of a printing paper P to reflect the light emitted from the paper detection sensor 4 toward a position away from the paper detection sensor.
    Type: Grant
    Filed: June 27, 2000
    Date of Patent: May 6, 2003
    Assignee: Seiko Precision Inc.
    Inventors: Mitsuharu Shishido, Yuji Nakagaki
  • Publication number: 20010010773
    Abstract: A dot printer not using any type, nor requiring any ink ribbon has an ink roller 1, a platen 2 having an outer surface coated with ink by contacting the ink roller 1, and a printing head 3 facing the platen 2 in an appropriately spaced apart relation thereto. The printing head 3 is a dot impact type printing head having a plurality of printing wires caused to project selectively to form letters, and a recording medium 6 is conveyed between the platen 2 and the printing head 3 to have printing made thereon by the printing head 3. A protective film 8 is employed between the printing head 3 and the recording medium 6.
    Type: Application
    Filed: January 11, 2001
    Publication date: August 2, 2001
    Inventors: Yuji Nakagaki, Mitsuharu Shishido
  • Patent number: 5810489
    Abstract: The present invention is intended to facilitate the replacement of printing types and to eliminate mistakes in the replacement thereof. A printing type wheel 2 and a stock wheel 3 are coaxially arranged. The printing type wheel 2 is provided with an attachment part for inserting and attaching a printing type unit 5 for printing on an object F to be printed. The printing type unit 5 is detachably stocked in the stock wheel 3. The printing type unit 5 is taken out from the stock wheel 3 with a robot 6 so as to be attached on the printing type wheel 2. Ink is deposited to the printing type unit 5 attached on the printing type wheel 2 with an ink roller 45. The printing type wheel 5, the stock wheel 3 and the ink roller 45 are warmed with the heater 30 and the heater 46.
    Type: Grant
    Filed: October 6, 1995
    Date of Patent: September 22, 1998
    Assignee: Seiko Precision Inc.
    Inventors: Yuji Nakagaki, Fumio Otsuka, Hiroyuki Harada, Akio Tajima