Patents Assigned to Yamahachi Kemikaru Kabushiki Kaisha
  • Endless printing belt
    Patent number: 8240248
    Abstract: Provided is an endless printing belt which is capable of reducing ink leakage from a back surface, reducing a loss of ink due to volatilization in the case of applying volatile ink, ensuring a smooth feeding action of the printing belt to achieve accurate positioning of a printing portion, and enhancing belt strength so as to suppress deformation of the belt. In an endless printing belt mainly made of thermoplastic resin provided with interconnected cells, a surface of the belt constitutes a surface for a printing surface, a side surface is rendered ink-impermeable, and a back surface of the belt includes an ink-impermeable portion and an ink-permeable portion.
    Type: Grant
    Filed: October 16, 2008
    Date of Patent: August 14, 2012
    Assignee: Yamahachi Kemikaru Kabushiki Kaisha
    Inventor: Yasuhiro Toyama
  • Multiple-seal-faced stamp of liquid-exuding type
    Patent number: 6840172
    Abstract: A stamp of liquid-exuding type has a multiple-seal-faced assembly adapted for stamping with selected one of these multiple faces, preferably for stamping with multiple colors.
    Type: Grant
    Filed: March 19, 2002
    Date of Patent: January 11, 2005
    Assignee: Yamahachi Kemikaru Kabushiki Kaisha
    Inventor: Tetsuyuki Toyama
  • Roller stamp of ink-exuding type and method for making the same
    Patent number: 6659001
    Abstract: A stamp of liquid-exuding type has a multiple-seal-faced assembly adapted for stamping with selected one of these multiple faces, preferably for stamping with multiple colors.
    Type: Grant
    Filed: July 1, 2002
    Date of Patent: December 9, 2003
    Assignee: Yamahachi Kemikaru Kabushiki Kaisha
    Inventor: Tetsuyuki Toyama