Patents by Inventor Shigeru Hieda

Shigeru Hieda 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: 9656240
    Abstract: The present invention provides a water-trapping agent disposed inside a hermetically sealed container. The water-trapping agent comprises an organometallic compound as represented by Formula 1 as a drying agent component, and is obtained by a process comprising mixing the organometallic compound with organic solvent, and at least partially substituting the organic solvent with viscous replacement material: wherein R is selected from the group consisting of alkyl group, alkoxy group, alkenyl group, aryl group, cycloalkyl group, heterocyclic group and acyl group, M is a trivalent metal atom, and n is an integer of 1 or above.
    Type: Grant
    Filed: August 9, 2011
    Date of Patent: May 23, 2017
    Assignee: Futaba Corporation
    Inventors: Satoshi Tanaka, Shigeru Hieda, Yoshihisa Yonezawa, Youhei Fujimura
  • Publication number: 20120037893
    Abstract: The present invention provides a water-trapping agent disposed inside a hermetically sealed container. The water-trapping agent comprises an organometallic compound as represented by Formula 1 as a drying agent component, and is obtained by a process comprising mixing the organometallic compound with organic solvent, and at least partially substituting the organic solvent with viscous replacement material: wherein R is selected from the group consisting of alkyl group, alkoxy group, alkenyl group, aryl group, cycloalkyl group, heterocyclic group and acyl group, M is a trivalent metal atom, and n is an integer of 1 or above.
    Type: Application
    Filed: August 9, 2011
    Publication date: February 16, 2012
    Inventors: Satoshi Tanaka, Shigeru Hieda, Yoshihisa Yonezawa, Youhei Fujimura
  • Patent number: 7871712
    Abstract: A water-capturing or drying agent placed in a hermetically sealed field light emission device for maintaining stable light emission of the light emission device not susceptible to moisture and oxygen for long period of time. The drying agent comprises a compound of polymer formed by bonding M constituting a plurality of organometallic compounds wherein M is a trivalent metal atom with an oxygen molecule. The drying agent is placed in the hermetically sealed container, thereby protecting the field light emission device from being adversely affected by damage from trace amounts of moisture permeating from outside the hermetically sealed container and/or adhered to the inner surface thereof.
    Type: Grant
    Filed: March 22, 2006
    Date of Patent: January 18, 2011
    Assignee: Futaba Corporation
    Inventors: Hisamitsu Takahashi, Shigeru Hieda, Satoshi Tanaka
  • Patent number: 7622199
    Abstract: A thin-profile organic EL device with a high degree of reliability is provided. The anode, the organic layer and the light transmissible-type cathode are laminated on the substrate and the inorganic water-barrier layer are laminated thereon, and then a UV rays-curable type water-capturing agent comprising a UV rays-curing agent and a water-absorbing agent is cured to bond to the sealing substrate instead of an adhesive layer. The UV rays-curing agent comprises an acrylic monomer, initiator and accelerator. The UV rays-curable type sealing agent is placed to the outer peripheral portion of the UV rays-curable type water-capturing agent to be cured. The emission of the organic layer is transmitted upward via the cathode, UV rays-curable type water-capturing agent and the sealing substrate.
    Type: Grant
    Filed: April 7, 2005
    Date of Patent: November 24, 2009
    Assignee: Futaba Corporation
    Inventors: Satoshi Tanaka, Shigeru Hieda, Hisamitsu Takahashi, Yoshihisa Tsuruoka
  • Publication number: 20060216457
    Abstract: A water-capturing or drying agent placed in a hermetically sealed field light emission device for maintaining stable light emission of the light emission device not susceptible to moisture and oxygen for long period of time. The drying agent comprises a compound of polymer formed by bonding M constituting a plurality of organometallic compounds wherein M is a trivalent metal atom with an oxygen molecule. The drying agent is placed in the hermetically sealed container, thereby protecting the field light emission device from being adversely affected by damage from trace amounts of moisture permeating from outside the hermetically sealed container and/or adhered to the inner surface thereof.
    Type: Application
    Filed: March 22, 2006
    Publication date: September 28, 2006
    Inventors: Hisamitsu Takahashi, Shigeru Hieda, Satoshi Tanaka
  • Patent number: 7030258
    Abstract: A water-capturing agent capable of inhibiting the generation and growth of a darkspot and an organic EL device including the water-capturing agent are provided. The organic EL device uses the water-capturing agent comprising a compound illustrated by the chemical structural formula (1); wherein R and R? are independently a substituent selected from the group consisting of an alkyl group, aryl group, cycloalkyl group, alkoxy group, acyl group and heterocyclic group having an unsaturated bond and one or more of a hydrogen atom and a carbon atom, or a substituent formed by substituting at least one of a hydrogen atom of said group with a halogen atom, and a central atom M is a metal having coordination number of six.
    Type: Grant
    Filed: June 15, 2004
    Date of Patent: April 18, 2006
    Assignee: Futaba Corporation
    Inventors: Hisamitsu Takahashi, Shigeru Hieda, Yoshihisa Tsuruoka, Satoshi Tanaka
  • Publication number: 20050227114
    Abstract: A thin-profile organic EL device with a high degree of reliability is provided. The anode, the organic layer and the light transmissible-type cathode are laminated on the substrate and the inorganic water-barrier layer are laminated thereon, and then a UV rays-curable type water-capturing agent comprising a UV rays-curing agent and a water-absorbing agent is cured to bond to the sealing substrate instead of an adhesive layer. The UV rays-curing agent comprises an acrylic monomer, initiator and accelerator. The UV rays-curable type sealing agent is placed to the outer peripheral portion of the UV rays-curable type water-capturing agent to be cured. The emission of the organic layer is transmitted upward via the cathode, UV rays-curable type water-capturing agent and the sealing substrate.
    Type: Application
    Filed: April 7, 2005
    Publication date: October 13, 2005
    Inventors: Satoshi Tanaka, Shigeru Hieda, Hisamitsu Takahashi, Yoshihisa Tsuruoka
  • Patent number: 6896980
    Abstract: A novel water-scavenging agent of the present invention comprising a compound of formula (I) as a primary component can be dissolved in a polar solvent and coated by a screen printing method, and the inventive organic EL device comprising same can maintain stable luminescent characteristics for a prolonged time: wherein, R1, R2, R3, R4, R5 and R6 are each independently hydrogen; halogen; alkyl, aryl, cycloalkyl or hetero-ring, optionally substituted with at least one halogen atom, and M is a metal having a coordination number of 6.
    Type: Grant
    Filed: September 11, 2003
    Date of Patent: May 24, 2005
    Assignee: Futaba Corporation
    Inventors: Hisamitsu Takahashi, Shigeru Hieda, Yoshihisa Tsuruoka, Satoshi Tanaka
  • Patent number: 6887592
    Abstract: An organic EL device having a drying medium capable of suppressing the growth of a dark spot equipped with a water-capturing medium layer for chemically capturing water placed on a water-capturing medium holding layer. The organic EL device is comprised of a sealed container having a glass substrate and a sealing cap bonded to the glass substrate. The sealed container is provided with a light emitting region formed on the substrate which is formed of organic EL material layers placed between a pair of opposite anode and cathode electrodes. The sealed container further includes a water-capturing medium holding layer provided on an inner surface of the container spaced apart from the light emitting region and a water-capturing medium holding layer.
    Type: Grant
    Filed: March 7, 2003
    Date of Patent: May 3, 2005
    Assignee: Futaba Corporation
    Inventors: Shigeru Hieda, Yoshihisa Tsuruoka, Hisamitsu Takahashi, Satoshi Tanaka
  • Publication number: 20040256592
    Abstract: A water-capturing agent capable of inhibiting the generation and growth of a darkspot and an organic EL device including the water-capturing agent are provided.
    Type: Application
    Filed: June 15, 2004
    Publication date: December 23, 2004
    Inventors: Hisamitsu Takahashi, Shigeru Hieda, Yoshihisa Tsuruoka, Satoshi Tanaka
  • Patent number: 6790381
    Abstract: An organic EL device is disclosed in which is placed a transparent water-capturing film comprising an easy-to-use organometallic compound illustrated by the chemical formula (1): wherein, R1, R2 and R3 are selected from the group consisting of alkyl group, aryl group, cycloalkyl group, heterocyclic group and acyl group having one carbon atom and above, and M is a trivalent metallic atom.
    Type: Grant
    Filed: November 5, 2002
    Date of Patent: September 14, 2004
    Assignee: Futaba Corporation
    Inventors: Yoshihisa Tsuruoka, Hisamitsu Takahashi, Satoshi Tanaka, Shigeru Hieda
  • Publication number: 20040056232
    Abstract: A novel water-scavenging agent of the present invention comprising a compound of formula (I) as a primary component can be dissolved in a polar solvent and coated by a screen printing method, and the inventive organic EL device comprising same can maintain stable luminescent characteristics for a prolonged time: 1
    Type: Application
    Filed: September 11, 2003
    Publication date: March 25, 2004
    Applicant: Futaba Corporation
    Inventors: Hisamitsu Takahashi, Shigeru Hieda, Yoshihisa Tsuruoka, Satoshi Tanaka
  • Patent number: 6656609
    Abstract: An organic EL element maintaining emission characteristics for long periods of time comprising: a laminate having a structure such that organic EL material layers are sandwiched between a pair of opposite electrodes; a sealed container into which is placed said laminate; and a drying member which is placed in said sealed container and prevents contamination of said organic EL material layers by moisture, wherein said drying member is formed of an organometallic compound. The organometallic compound adsorbs chemically water and functions as an adhering agent for other physical drying agents and chemical drying agents and has no adverse effect on the organic EL element and can prevent growth of a dark spot.
    Type: Grant
    Filed: May 4, 2001
    Date of Patent: December 2, 2003
    Assignee: Futaba Corporation
    Inventors: Hisamitsu Takahashi, Shigeru Hieda, Yuji Saito
  • Publication number: 20030170496
    Abstract: An organic EL device having a drying medium capable of suppressing the growth of a dark spot equipped with a water-capturing medium layer for chemically capturing water placed on a water-capturing medium holding layer. The organic EL device is comprised of a sealed container having a glass substrate and a sealing cap bonded to the glass substrate. The sealed container is provided with a light emitting region formed on the substrate which is formed of organic EL material layers placed between a pair of opposite anode and cathode electrodes. The sealed container further includes a water-capturing medium holding layer provided on an inner surface of the container spaced apart from the light emitting region and a water-capturing medium holding layer.
    Type: Application
    Filed: March 7, 2003
    Publication date: September 11, 2003
    Applicant: Futaba Corporation
    Inventors: Shigeru Hieda, Yoshihisa Tsuruoka, Hisamitsu Takahashi, Satoshi Tanaka
  • Publication number: 20030110981
    Abstract: An organic EL device is disclosed in which is placed a transparent water-capturing film comprising an easy-to-use organometallic compound illustrated by the chemical formula (1): 1
    Type: Application
    Filed: November 5, 2002
    Publication date: June 19, 2003
    Inventors: Yoshihisa Tsuruoka, Hisamitsu Takahashi, Satoshi Tanaka, Shigeru Hieda
  • Patent number: 6414432
    Abstract: An organic EL device capable of ensuring reliable and easy insulation between electrodes during patterning of the electrodes. The organic EL device includes an organic EL layer including a luminous layer and arranged between anodes and cathodes, as well as electrode separation sections arranged so as to separate the anodes from each other while insulating them from each other. The electrode separation sections each include a plurality of insulating ribs juxtaposed to each other at predetermined intervals and arranged on the anodes or in proximity to a periphery of the,anodes. This permits the interval between the ribs juxtaposed to each other to prevent the material for the second electrodes from advancing through the top surface of the ribs to the side surface thereof, to thereby ensure positive insulation between the second electrodes.
    Type: Grant
    Filed: February 10, 2000
    Date of Patent: July 2, 2002
    Assignee: Futaba Corporation
    Inventors: Shigeru Hieda, Yukio Ogawa
  • Publication number: 20020015818
    Abstract: An organic EL element maintaining emission characteristics for long periods of time comprising: a laminate having a structure such that organic EL material layers are sandwiched between a pair of opposite electrodes; a sealed container into which is placed said laminate; and a drying member which is placed in said sealed container and prevents contamination of said organic EL material layers by moisture, wherein said drying member is formed of an organometallic compound. The organometallic compound adsorbs chemically water and functions as an adhering agent for other physical drying agents and chemical drying agents and has no adverse effect on the organic EL element and can prevent growth of a dark spot.
    Type: Application
    Filed: May 4, 2001
    Publication date: February 7, 2002
    Applicant: Futaba Denshi Kogyo Kabushiki Kaisha
    Inventors: Hisamitsu Takahashi, Shigeru Hieda, Yuji Saito
  • Patent number: 5804917
    Abstract: An organic electroluminescent display device capable of permitting upper electrodes of a fine pattern to be formed and exhibiting increased durability. Ribs are spaced at predetermined intervals on transparent electrodes arranged in the form of a film on a lower transparent substrate. An organic layer is formed between each adjacent two of the ribs and an upper electrode is deposited all over the transparent electrodes. A portion of the upper electrode formed on each of the ribs is removed by scraping, rubbing or the like, resulting in the upper electrode being formed on only each of the organic layers. A cap layer may be provided on the upper electrode as required.
    Type: Grant
    Filed: January 30, 1996
    Date of Patent: September 8, 1998
    Assignee: Futaba Denshi Kogyo K.K.
    Inventors: Hisamitsu Takahashi, Yoshihisa Tsuruoka, Toshio Miyauchi, Shigeru Hieda