Patents by Inventor Takanobu Kawabata

Takanobu Kawabata 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: 6840173
    Abstract: A plate cylinder and printing plate holder for the cylinder is provided, which is capable of adjusting relative positions of plural printing plate holders and fixing the printing plate holders on the plate cylinder without causing misalignments of images among printing plates held by the printing plate holders even after overprinting. A plate cylinder (2) is equipped with at least two printing plates (P) wrapped around the outer circumference thereof. The plate cylinder comprises printing plate holders (6, 7) provided each per printing plate (P) for holding the printing plates (P) on the outer circumference of the plate cylinder. The printing plate holders include one printing plate holder (6) provided in a stationary state and fixed against the plate cylinder and other printing plate holders (7) provided adjustable to move in the circumferential direction of the plate cylinder (2) and fixable against the plate cylinder.
    Type: Grant
    Filed: June 17, 2002
    Date of Patent: January 11, 2005
    Assignee: Kabushiki Kaisha Tokyo Kikai Seisakusho
    Inventors: Takanobu Kawabata, Shinsuke Taira
  • Patent number: 6655278
    Abstract: An apparatus for positional adjustment of a plate cylinder in both lateral and circumferential directions thereof for image registration in a multicolor, offset rotary printing press. A lateral adjustment mechanism includes a spur gear which is motor driven bidirectionally, and which travels laterally back and forth, to cause lateral displacement of the plate cylinder. The gear has a pin erected eccentrically thereon for abutment against a fixed limit stop on the press frame in order to limit the bidirectional rotation of the gear and hence to prevent the plate cylinder from being driven laterally beyond limits. A circumferential adjustment mechanism includes another spur gear which is motor driven bidirectionally, and which also travels laterally back and forth, to cause circumferential displacement of the plate cylinder. This second gear has a double-ended pin extending eccentrically therethrough and having its ends projecting in opposite directions therefrom.
    Type: Grant
    Filed: May 18, 2001
    Date of Patent: December 2, 2003
    Assignee: Kabushiki Kaisha Tokyo Kikai Seisakusho
    Inventor: Takanobu Kawabata
  • Patent number: 6604464
    Abstract: An inking device for feeding ink that is fed to an ink rail to a printing plate on a plate cylinder via a group of rollers that are sequentially in contact with each other, comprising a first roller part of the outer periphery of which faces an ink feeding surface of the ink rail, a second roller that is disposed downstream of the first roller in the ink feeding process and in contact with the outer periphery of the first roller on the downstream side in the rotating direction from the position at which the first roller faces the ink feeding surface of the ink rail, a third roller that is in contact with the first roller on the downstream side in the rotating direction from the position at which the second roller comes in contact with the outer periphery of the first roller, and a fourth roller that is in contact with the outer peripheries of the second and third rollers and blocks the front side in the rotating direction of the first and second rollers at the position where the first and second rollers are i
    Type: Grant
    Filed: January 26, 2001
    Date of Patent: August 12, 2003
    Assignee: Tokyo KiKai Seisakusho, Ltd.
    Inventors: Takanobu Kawabata, Hiroji Yoshida, Kazuo Takahara
  • Publication number: 20030097946
    Abstract: A plate cylinder and printing plate holder for the cylinder is provided, which is capable of adjusting relative positions of plural printing plate holders and fixing the printing plate holders on the plate cylinder without causing misalignments of images among printing plates held by the printing plate holders even after overprinting. A plate cylinder (2) is equipped with at least two printing plates (P) wrapped around the outer circumference thereof. The plate cylinder comprises printing plate holders (6, 7) provided each per printing plate (P) for holding the printing plates (P) on the outer circumference of the plate cylinder. The printing plate holders include one printing plate holder (6) provided in a stationary state and fixed against the plate cylinder and other printing plate holders (7) provided adjustable to move in the circumferential direction of the plate cylinder (2) and fixable against the plate cylinder.
    Type: Application
    Filed: June 17, 2002
    Publication date: May 29, 2003
    Inventors: Takanobu Kawabata, Shinsuke Taira
  • Publication number: 20010050013
    Abstract: An apparatus for positional adjustment of a plate cylinder in both lateral and circumferential directions thereof for image registration in a multicolor, offset rotary printing press. A lateral adjustment mechanism includes a spur gear which is motor driven bidirectionally, and which travels laterally back and forth, to cause lateral displacement of the plate cylinder. The gear has a pin erected eccentrically thereon for abutment against a fixed limit stop on the press frame in order to limit the bidirectional rotation of the gear and hence to prevent the plate cylinder from being driven laterally beyond limits. A circumferential adjustment mechanism includes another spur gear which is motor driven bidirectionally, and which also travels laterally back and forth, to cause circumferential displacement of the plate cylinder. This second gear has a pin extending eccentrically therethrough and having its ends projecting in opposite directions therefrom.
    Type: Application
    Filed: May 18, 2001
    Publication date: December 13, 2001
    Applicant: Kabushiki Kaisha Tokyo Kikai Seisakusho
    Inventor: Takanobu Kawabata
  • Publication number: 20010011511
    Abstract: An inking device for feeding ink that is fed to an ink rail to a printing plate on a plate cylinder via a group of rollers that are sequentially in contact with each other, comprising a first roller part of the outer periphery of which faces an ink feeding surface of the ink rail, a second roller that is disposed downstream of the first roller in the ink feeding process and in contact with the outer periphery of the first roller on the downstream side in the rotating direction from the position at which the first roller faces the ink feeding surface of the ink rail, a third roller that is in contact with the first roller on the downstream side in the rotating direction from the position at which the second roller comes in contact with the outer periphery of the first roller, and a fourth roller that is in contact with the outer peripheries of the second and third rollers and blocks the front side in the rotating direction of the first and second rollers at the position where the first and second rollers are i
    Type: Application
    Filed: January 26, 2001
    Publication date: August 9, 2001
    Inventors: Takanobu Kawabata, Hiroji Yoshida, Kazuo Takahara
  • Patent number: 4930416
    Abstract: In an ink supply device having an ink reserve vessel being composed of a bottom member and surrounding side wall members, means for shifting one member of the bottom and surrounding side wall members between a closed position contacting the one member with the other members to form the ink reserve vessel and an open position separating the one member from the other members at the bottom level of the ink reserve vessel are provided for quickly discharging ink therefrom.
    Type: Grant
    Filed: October 26, 1988
    Date of Patent: June 5, 1990
    Assignee: Kabushiki Kaisha Tokyo Kikai Seisakusho
    Inventors: Takanobu Kawabata, Noritake Harada