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).
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Patent number: 9656240Abstract: 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: GrantFiled: August 9, 2011Date of Patent: May 23, 2017Assignee: Futaba CorporationInventors: Satoshi Tanaka, Shigeru Hieda, Yoshihisa Yonezawa, Youhei Fujimura
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Publication number: 20120037893Abstract: 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: ApplicationFiled: August 9, 2011Publication date: February 16, 2012Inventors: Satoshi Tanaka, Shigeru Hieda, Yoshihisa Yonezawa, Youhei Fujimura
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Patent number: 7871712Abstract: 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: GrantFiled: March 22, 2006Date of Patent: January 18, 2011Assignee: Futaba CorporationInventors: Hisamitsu Takahashi, Shigeru Hieda, Satoshi Tanaka
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Patent number: 7622199Abstract: 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: GrantFiled: April 7, 2005Date of Patent: November 24, 2009Assignee: Futaba CorporationInventors: Satoshi Tanaka, Shigeru Hieda, Hisamitsu Takahashi, Yoshihisa Tsuruoka
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Publication number: 20060216457Abstract: 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: ApplicationFiled: March 22, 2006Publication date: September 28, 2006Inventors: Hisamitsu Takahashi, Shigeru Hieda, Satoshi Tanaka
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Patent number: 7030258Abstract: 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: GrantFiled: June 15, 2004Date of Patent: April 18, 2006Assignee: Futaba CorporationInventors: Hisamitsu Takahashi, Shigeru Hieda, Yoshihisa Tsuruoka, Satoshi Tanaka
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Publication number: 20050227114Abstract: 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: ApplicationFiled: April 7, 2005Publication date: October 13, 2005Inventors: Satoshi Tanaka, Shigeru Hieda, Hisamitsu Takahashi, Yoshihisa Tsuruoka
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Patent number: 6896980Abstract: 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: GrantFiled: September 11, 2003Date of Patent: May 24, 2005Assignee: Futaba CorporationInventors: Hisamitsu Takahashi, Shigeru Hieda, Yoshihisa Tsuruoka, Satoshi Tanaka
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Patent number: 6887592Abstract: 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: GrantFiled: March 7, 2003Date of Patent: May 3, 2005Assignee: Futaba CorporationInventors: Shigeru Hieda, Yoshihisa Tsuruoka, Hisamitsu Takahashi, Satoshi Tanaka
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Publication number: 20040256592Abstract: 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: ApplicationFiled: June 15, 2004Publication date: December 23, 2004Inventors: Hisamitsu Takahashi, Shigeru Hieda, Yoshihisa Tsuruoka, Satoshi Tanaka
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Patent number: 6790381Abstract: 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: GrantFiled: November 5, 2002Date of Patent: September 14, 2004Assignee: Futaba CorporationInventors: Yoshihisa Tsuruoka, Hisamitsu Takahashi, Satoshi Tanaka, Shigeru Hieda
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Publication number: 20040056232Abstract: 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: 1Type: ApplicationFiled: September 11, 2003Publication date: March 25, 2004Applicant: Futaba CorporationInventors: Hisamitsu Takahashi, Shigeru Hieda, Yoshihisa Tsuruoka, Satoshi Tanaka
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Patent number: 6656609Abstract: 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: GrantFiled: May 4, 2001Date of Patent: December 2, 2003Assignee: Futaba CorporationInventors: Hisamitsu Takahashi, Shigeru Hieda, Yuji Saito
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Publication number: 20030170496Abstract: 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: ApplicationFiled: March 7, 2003Publication date: September 11, 2003Applicant: Futaba CorporationInventors: Shigeru Hieda, Yoshihisa Tsuruoka, Hisamitsu Takahashi, Satoshi Tanaka
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Publication number: 20030110981Abstract: 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): 1Type: ApplicationFiled: November 5, 2002Publication date: June 19, 2003Inventors: Yoshihisa Tsuruoka, Hisamitsu Takahashi, Satoshi Tanaka, Shigeru Hieda
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Patent number: 6414432Abstract: 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: GrantFiled: February 10, 2000Date of Patent: July 2, 2002Assignee: Futaba CorporationInventors: Shigeru Hieda, Yukio Ogawa
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Publication number: 20020015818Abstract: 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: ApplicationFiled: May 4, 2001Publication date: February 7, 2002Applicant: Futaba Denshi Kogyo Kabushiki KaishaInventors: Hisamitsu Takahashi, Shigeru Hieda, Yuji Saito
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Patent number: 5804917Abstract: 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: GrantFiled: January 30, 1996Date of Patent: September 8, 1998Assignee: Futaba Denshi Kogyo K.K.Inventors: Hisamitsu Takahashi, Yoshihisa Tsuruoka, Toshio Miyauchi, Shigeru Hieda