Patents by Inventor Mitsufumi Kodama
Mitsufumi Kodama 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: 10476030Abstract: A display device includes a first substrate, a sealing layer located along an edge of the first substrate, a second substrate coupled with the first substrate via the sealing layer, a display part located on the second main surface and within a sealed space, and a filler filling the sealed space and including a particle solid drying agent dispersed therein. The display part includes an organic EL element located on the second substrate, the organic EL element including a first electrode, an organic EL layer, and a second electrode stacked in order from the second substrate. Additionally, the display part includes an organic sacrifice layer located on and in contact with the second electrode, and a first inorganic protective layer located on and in contact with the organic sacrifice layer. The filler is located between the first inorganic protective layer and the first substrate.Type: GrantFiled: June 8, 2018Date of Patent: November 12, 2019Assignee: Futaba CorporationInventors: Shinji Ide, Takahiro Niiyama, Mitsufumi Kodama
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Publication number: 20190198804Abstract: An organic EL display device includes a first substrate including a first main surface, a frame-shaped sealing layer in contact with the first main surface, a second substrate in contact with the sealing layer, an organic EL element part disposed in a sealed space S surrounded with the first substrate, the sealing layer and the second substrate, and a filler with which at least an area overlapping the organic EL element part in a layer-stacked direction of the first substrate and the second substrate is filled, in the sealed space. A void is disposed in the sealed space that is positioned between an inner side wall of the sealing layer and a portion which is closest to the inner side wall in the organic EL element part.Type: ApplicationFiled: July 27, 2017Publication date: June 27, 2019Inventors: Mitsufumi KODAMA, Satoshi TANAKA, Megumi KONNO
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Publication number: 20190036078Abstract: An organic EL display device includes a first substrate, a frame-shaped sealing layer disposed along an edge of the first substrate, a second substrate, an organic EL element portion disposed in a sealed space surrounded with the first substrate, the sealing layer, and the second substrate, and a filler that fills the sealed space. The filler has a first filler that includes a powdered drying agent, and is in contact with the sealing layer on an inside of the sealing layer, and a second filler that is in contact with the first filler on an inside of the first filler. At least an area overlapping the organic EL element portion is filled with the second filler.Type: ApplicationFiled: July 24, 2018Publication date: January 31, 2019Inventors: Takahiro NIIYAMA, Shinji IDE, Mitsufumi KODAMA, Shingo KAMINAGA
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Publication number: 20180375062Abstract: A display device includes a first substrate, a sealing layer located along an edge of the first substrate, a second substrate coupled with the first substrate via the sealing layer, a display part located on the second main surface and within a sealed space, and a filler filling the sealed space and including a particle solid drying agent dispersed therein. The display part includes an organic EL element located on the second substrate, the organic EL element including a first electrode, an organic EL layer, and a second electrode stacked in order from the second substrate. Additionally, the display part includes an organic sacrifice layer located on and in contact with the second electrode, and a first inorganic protective layer located on and in contact with the organic sacrifice layer. The filler is located between the first inorganic protective layer and the first substrate.Type: ApplicationFiled: June 8, 2018Publication date: December 27, 2018Applicant: Futaba CorporationInventors: Shinji IDE, Takahiro NIIYAMA, Mitsufumi KODAMA
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Patent number: 9882164Abstract: The organic EL display module includes an organic EL display device having flexibility, a touch panel having flexibility, a first adhesive portion for attaching the organic EL display device and the touch panel to each other, a curved and flexible intermediate housing disposed on an opposite side from the organic EL display device with respect to the touch panel, and a second adhesive portion for attaching the touch panel and the intermediate housing to each other.Type: GrantFiled: May 26, 2016Date of Patent: January 30, 2018Assignee: FUTABA CORPORATIONInventors: Mitsufumi Kodama, Ikuo Ohmori, Shinji Ide, Shigeyuki Ishiguro, Fumio Kimura
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Patent number: 9799847Abstract: The present invention relates to a flexible organic EL device comprising, on one of the surfaces of an organic resin base, an inorganic protective layer, an organic EL light emitting part, a buffer layer, and a breakage-resistant layer in this order, wherein the buffer layer is a silicone or EPDM containing layer and an elastic modulus of the breakage-resistant layer at 5 to 35° C. is 100 MPa to 300 GPa.Type: GrantFiled: June 2, 2016Date of Patent: October 24, 2017Assignee: Futaba CorporationInventors: Shigeyuki Ishiguro, Shigeo Naritomi, Ikuo Ohmori, Mitsufumi Kodama, Fumio Kimura
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Publication number: 20160359138Abstract: The present invention relates to a flexible organic EL device comprising, on one of the surfaces of an organic resin base, an inorganic protective layer, an organic EL light emitting part, a buffer layer, and a breakage-resistant layer in this order, wherein the buffer layer is a silicone or EPDM containing layer and an elastic modulus of the breakage-resistant layer at 5 to 35° C. is 100 MPa to 300 GPa.Type: ApplicationFiled: June 2, 2016Publication date: December 8, 2016Inventors: Shigeyuki ISHIGURO, Shigeo NARITOMI, Ikuo OHMORI, Mitsufumi KODAMA, Fumio KIMURA
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Publication number: 20160351848Abstract: The organic EL display module includes an organic EL display device having flexibility, a touch panel having flexibility, a first adhesive portion for attaching the organic EL display device and the touch panel to each other, a curved and flexible intermediate housing disposed on an opposite side from the organic EL display device with respect to the touch panel, and a second adhesive portion for attaching the touch panel and the intermediate housing to each other.Type: ApplicationFiled: May 26, 2016Publication date: December 1, 2016Inventors: Mitsufumi KODAMA, Ikuo OHMORI, Shinji IDE, Shigeyuki ISHIGURO, Fumio KIMURA
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Publication number: 20150162564Abstract: A highly reliable organic electroluminescence device is provided. An organic electroluminescence device 1 includes at least one layer of inorganic barrier film 4, at least one organic electroluminescence element 5, and a sealed portion. The inorganic barrier film 4 is formed to contact to a flexible substrate 2 or at least one layer of organic resin film 3 formed on the substrate 2. The organic electroluminescence element 5 is formed on the inorganic barrier film 4 and includes an anode 51, an organic layer 52 including an organic light emitting layer, and a cathode 53. The sealed portion includes at least one of a flexible sealing film 8 and a sealing membrane 6, and blocks at least one organic electroluminescence element 5 from the air outside. The formed surface of the inorganic barrier film 4 is held to maintain a state in which a compressive stress is applied.Type: ApplicationFiled: December 5, 2014Publication date: June 11, 2015Inventors: Mitsufumi KODAMA, Shigeyuki ISHIGURO, Shigeo NARITOMI, Shinji IDE
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Patent number: 8319419Abstract: A display apparatus comprises a display unit which has a plurality of organic EL elements two-dimensionally arranged to define pixels. Each organic EL element comprises a first electrode, an organic EL layer, and a second electrode laminated in order on an optically transparent substrate. One of the first electrode and second electrode is an optically transparent electrode, while the other is a non-optically transparent electrode. The non-optically transparent electrode is disposed to exist only in part of each pixel, as viewed from vertically above (for example, the width of the electrode is made smaller than the width of a pixel). In this way, the display unit can transmit light through portions of the pixels in which the non-optically transparent electrodes are not disposed. Preferably, the non-optically transparent electrode includes a mirror surface opposite to the organic EL layer.Type: GrantFiled: June 10, 2010Date of Patent: November 27, 2012Assignee: Futaba CorporationInventors: Mitsufumi Kodama, Keisuke Watanabe, Daisuke Takeuchi, Yuuki Aburakawa
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Patent number: 8159132Abstract: An organic EL display apparatus includes a display unit having a plurality of organic EL elements two-dimensionally arranged on a substrate, where the organic EL elements provide pixels, a sealing plate configured to be adhered to the substrate with an adhesive to cover the display unit, and a plurality of lead wires disposed on the substrate such that the lead wires are drawn outward from the display unit to the outside of the sealing plate. A linear bank is formed along an adhesion zone defined on the substrate to extend across the lead wires in a region where these lead wires are disposed. The sealing plate has its periphery adhered to the adhesion zone on the substrate along the adhesion zone on the substrate.Type: GrantFiled: May 25, 2010Date of Patent: April 17, 2012Assignee: TDK CorporationInventors: Mitsufumi Kodama, Toshiaki Maruoka, Shigeyuki Ishiguro, Toshio Hayakawa, Yosuke Mizutani
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Publication number: 20100314616Abstract: A display apparatus comprises a display unit which has a plurality of organic EL elements two-dimensionally arranged to define pixels. Each organic EL element comprises a first electrode, an organic EL layer, and a second electrode laminated in order on an optically transparent substrate. One of the first electrode and second electrode is an optically transparent electrode, while the other is a non-optically transparent electrode. The non-optically transparent electrode is disposed to exist only in part of each pixel, as viewed from vertically above (for example, the width of the electrode is made smaller than the width of a pixel). In this way, the display unit can transmit light through portions of the pixels in which the non-optically transparent electrodes are not disposed. Preferably, the non-optically transparent electrode includes a mirror surface opposite to the organic EL layer.Type: ApplicationFiled: June 10, 2010Publication date: December 16, 2010Applicant: TDK CORPORATIONInventors: Mitsufumi KODAMA, Keisuke WATANABE, Daisuke TAKEUCHI, Yuuki ABURAKAWA
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Publication number: 20100301743Abstract: An organic EL display apparatus comprises a display unit including a plurality of organic EL elements two-dimensionally arranged on a substrate, where the organic EL elements provide pixels, a sealing plate configured to be adhered to the substrate with an adhesive to cover the display unit, and a plurality of lead wires disposed on the substrate such that the lead wires are drawn outward from the display unit to the outside of the sealing plate. A linear bank is formed along an adhesion zone defined on the substrate to extend across the lead wires in a region where these lead wires are disposed. The sealing plate has its periphery adhered to the adhesion zone on the substrate along the adhesion zone on the substrate.Type: ApplicationFiled: May 25, 2010Publication date: December 2, 2010Applicant: TDK CORPORATIONInventors: Mitsufumi KODAMA, Toshiaki Maruoka, Shigeyuki Ishiguro, Toshio Hayakawa, Yosuke Mizutani
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Patent number: 5576222Abstract: An image sensor (10) has a substrate (1), an active layer (3') having a source region and a drain region placed on said substrate (1), a gate insulation layer (4') placed on said active layer, and a gate electrode layer (5') on said gate insulation layer (4'). The active layer (3') is produced by the steps of producing amorphous silicon layer by using disilane gas (Si.sub.2 H.sub.6) through Low Pressure CVD process, and annealing said layer at 500.degree.-650.degree. C. for 4-50 hours in nitrogen gas atmosphere. The gate insulation layer (4') is produced through oxidation of the surface of the active layer at high temperature around 900.degree.-1100.degree. C. The oxidation process at high temperature improves the anneal process and improves the active layer. Thus, an image sensor with uniform characteristics is obtained with improved producing yield rate.Type: GrantFiled: October 18, 1994Date of Patent: November 19, 1996Assignees: TDK Corp., Semiconductor Energy Laboratory Co. Ltd.Inventors: Michio Arai, Masaaki Ikeda, Kazushi Sugiura, Nobuo Furukawa, Mitsufumi Kodama, Yukio Yamauchi, Naoya Sakamoto, Takeshi Fukada, Masaaki Hiroki, Ichirou Takayama
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Patent number: 5442198Abstract: A MOS-FET transistor is produced on a substrate made of glass which has a non single crystal semiconductor film (2'). The average diameter of a crystal grain in said film is in the range between 0.5 times and 4 times of thickness of said film, and said average diameter is 250 .ANG.-8000 .ANG., and said film thickness is 500 .ANG.-2000 .ANG.. The density of oxygen in the semiconductor film (2') is less than 2.times.10.sup.19 /cm.sup.3. A photo sensor having PIN structure is also produced on the substrate, to provide an image sensor for a facsimile transmitter together with the transistors. Said film (2') is produced by placing amorphous silicon film on the glass substrate through CVD process using disilane gas, and effecting solid phase growth to said amorphous silicon film by heating the substrate together with said film in nitrogen gas atmosphere. The film (2') thus produced is subject to implantation of dopant for providing a transistor.Type: GrantFiled: January 31, 1994Date of Patent: August 15, 1995Assignees: TDK Corporation, Semiconductor Energy Lab. Co., Ltd.Inventors: Michio Arai, Masaaki Ikeda, Kazushi Sugiura, Nobuo Furukawa, Mitsufumi Kodama, Yukio Yamauchi, Naoya Sakamoto, Takeshi Fukada, Masaaki Hiroki, Ichirou Takayama
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Patent number: 5298455Abstract: A MOS-FET transistor is produced on a substrate made of glass which has a non single crystal semiconductor film (2'). The average diameter of a crystal grain in said film is in the range between 0.5 times and 4 times of thickness of said film, and said average diameter is 250 .ANG.-8000 .ANG. , and said film thickness is 500 .ANG.-2000 .ANG.. The density of oxygen in the semiconductor film (2') is less than 2.times.10.sup.19 /cm.sup.3. A photo sensor having PIN structure is also produced on the substrate, to provide an image sensor for a facsimile transmitter together with the transistors. Said film (2') is produced by placing amorphous silicon film on the glass substrate through CVD process using disilane gas, and effecting solid phase growth to said amorphous silicon film by heating the substrate together with said film in nitrogen gas atmosphere. The film (2') thus produced is subject to implantation of dopant for providing a transistor.Type: GrantFiled: January 27, 1992Date of Patent: March 29, 1994Assignee: TDK CorporationInventors: Michio Arai, Masaaki Ikeda, Kazushi Sugiura, Nobuo Furukawa, Mitsufumi Kodama, Yukio Yamauchi, Naoya Sakamoto, Takeshi Fukada, Masaaki Hiroki, Ichirou Takayama