Patents Assigned to Print Labo Co., Ltd.
  • Patent number: 7105998
    Abstract: An EL light emitting device has: an EL light emitting layer having an EL light emitting material element; and an electrode section having a first electrode and a second electrode which are arranged on one surface side of the EL light emitting layer to be electrically separated from each other with a spacing region, and having a predetermined pattern. An alternating current electric field forming element, to form an alternating current electric field in the EL light emitting layer when an alternating current power supply voltage is applied between the first electrode and the second electrode, is adhered to the other surface side of the EL light emitting layer. A waterproof layer of a synthetic resin is arranged between at least one of the first electrode and the second electrode, and the EL light emitting layer.
    Type: Grant
    Filed: May 15, 2003
    Date of Patent: September 12, 2006
    Assignee: Print Labo Co., Ltd.
    Inventor: Shinsaku Fukuda
  • Patent number: 6727647
    Abstract: An electroluminescent light-emitting device having a light-emitting surface area and including (a) an electroluminescent light-emitting layer containing an electroluminescent material, and (b) an electrode layer formed on one of opposite sides of the electroluminescent light-emitting layer and including a first electrode and a second electrode which are formed in respective predetermined patterns such that the two electrodes are spaced apart from each other by spacing regions provided therebetween, in a direction parallel to a plane of the electrode layer, and such that the two electrodes are electrically insulated from each other by the spacing regions. The electroluminescent light-emitting device has an exposed surface which is located on the other side of the electroluminescent light-emitting layer and to which an electrically conductive ink is applicable.
    Type: Grant
    Filed: November 21, 2002
    Date of Patent: April 27, 2004
    Assignees: Print Labo Co., Ltd., Nippon Electroluminescent Light Co., Ltd.
    Inventors: Shinsaku Fukuda, Masaharu Ono, Naoyuki Mori, Takayuki Hora
  • Publication number: 20030197461
    Abstract: An electroluminescent light-emitting device having a light-emitting surface area and including (a) an electroluminescent light-emitting layer containing an electroluminescent material, and (b) an electrode layer formed on one of opposite sides of the electroluminescent light-emitting layer and including a first electrode and a second electrode which are formed in respective predetermined patterns such that the two electrodes are spaced apart from each other by spacing regions provided therebetween, in a direction parallel to a plane of the electrode layer, and such that the two electrodes are electrically insulated from each other by the spacing regions. The electroluminescent light-emitting device has an exposed surface which is located on the other side of the electroluminescent light-emitting layer and to which an electrically conductive ink is applicable.
    Type: Application
    Filed: November 21, 2002
    Publication date: October 23, 2003
    Applicants: Print Labo Co., Ltd., Nippon Electroluminescent Light Co., Ltd.
    Inventors: Shinsaku Fukuda, Masaharu Ono, Naoyuki Mori, Takayuki Hora