Patents by Inventor Takefumi Abe
Takefumi Abe 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: 11732153Abstract: To provide a coating liquid composition containing a fluororesin, whereby a film excellent in the surface flatness can be formed by a plate printing method. A coating liquid composition comprising a fluororesin having an aliphatic ring in the main chain and a fluorinated solvent, wherein the fluorinated solvent has a boiling point of at least 185° C., and the composition has a viscosity of at most 1,000 mP·s at 25° C.Type: GrantFiled: July 27, 2018Date of Patent: August 22, 2023Assignee: AGC Inc.Inventors: Naoko Shirota, Miyako Sasaki, Takefumi Abe
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Publication number: 20230223493Abstract: The present invention relates to an LED element substrate on which an LED element is to be provided and which includes a glass, in which at least one main surface of the substrate is black, and one or more LED elements are to be provided on the black main surface, and relates to an LED element substrate on which an LED element is to be provided and which includes a glass, in which at least one main surface of the substrate is black, the substrate comprises a plurality of holes, and one or more LED elements are to be provided on an inside of each of the holes.Type: ApplicationFiled: March 13, 2023Publication date: July 13, 2023Applicant: AGC Inc.Inventors: Hirofumi TOKUNAGA, Kazutaka ONO, Takefumi ABE, Naoya WADA
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Publication number: 20230133905Abstract: Provided are a curable composition and an application thereof. The curable composition contains: a compound A having a polymerizable group (a) and an oxyfluoroalkylene group; a polymerization initiator; and a compound B having a polymerizable group different from the polymerizable group (a). The polymerizable group (a) in the compound A is at least one selected from the group consisting of a vinylphenyl group, a vinylphenyloxy group, a vinylbenzyloxy group, a vinyloxy group, a vinyloxycarbonyl group, a vinylamino group, a vinylaminocarbonyl group, a vinylthio group, an allyloxy group, an allyloxycarbonyl group, an allylamino group, an allylaminocarbonyl group, an allylthio group, an epoxy group, and an epoxycycloalkyl group.Type: ApplicationFiled: December 27, 2022Publication date: May 4, 2023Applicant: AGC Inc.Inventors: Takefumi ABE, Saki TAKEI, Kaori TSURUOKA, Keigo MATSUURA, Yoshitaka NOMURA, Nobuyuki OTOZAWA, Tomoaki SAKURADA
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Publication number: 20230022628Abstract: To provide a novel conductive film having two regions differing in the light transmittance, an optoelectronic device having such a conductive film, and a method for producing a conductive film by which such a conductive film can readily be produced. A conductive film, which has a first region and a second region having a light transmittance higher than the first region, the conductive film having a first film formed of a conductive material as a material and a resin film formed of a fluorinated polymer as a material, the first film being disposed to overlap with at least the first region among the first region and the second region, the resin film being disposed to overlap with the second region, and the fluorinated polymer satisfying the following (1) and (2): (1) when the temperature is increased at a temperature-increasing rate of 2° C./min under a pressure of 1×10?3 Pa, the temperature at which the thermogravimetric loss rate substantially reaches 100% is 400° C.Type: ApplicationFiled: September 23, 2022Publication date: January 26, 2023Applicant: AGC Inc.Inventors: Takefumi ABE, Kaori TSURUOKA
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Publication number: 20220372186Abstract: A fluorinated polymer suitable for deposition is provided. A film containing such a fluorinated polymer as a material is provided. A method for producing a film, by which such a film can readily be produced, is provided. Further, an organic photoelectronic element having such a film in its structure is provided. A fluorinated polymer which satisfies the following requirements (1) to (3): (1) the melting point is 200° C. or higher, (2) the thermogravimetric loss rate when the temperature is increased at a temperature-increasing rate of 2° C./min under a pressure of 1×10?3 Pa, substantially reaches 100% at 400° C. or lower, (3) when the temperature is increased at a temperature-increasing rate of 2° C./min under a pressure of 1×10?3 Pa, the temperature width from a temperature at which the thermogravimetric loss rate is 10% to a temperature at which it is 90%, is within 100° C.Type: ApplicationFiled: August 3, 2022Publication date: November 24, 2022Applicant: AGC Inc.Inventors: Takefumi ABE, Kaori TSURUOKA, Tetsuji SHIMOHIRA, Saki TAKEI, Shotaro BEPPU
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Publication number: 20220372180Abstract: A fluorinated polymer suitable for deposition and capable of favorable metal patterning, is provided. A resin film containing such a fluorinated polymer as a material is provided. Further, a photoelectronic element having such a resin film in its structure is provided. A fluorinated polymer which satisfies the following requirements (1) to (3): (1) the melting point is less than 200° C., or no melting point is observed, (2) the thermogravimetric loss rate when the temperature is increased at a temperature-increasing rate of 2° C./min under a pressure of 1×10?3 Pa, substantially reaches 100% at 400° C. or lower, (3) when the temperature is increased at a temperature-increasing rate of 2° C./min under a pressure of 1×10?3 Pa, the temperature width from a temperature at which the thermogravimetric loss rate is 10% to a temperature at which it is 90%, is within 200° C.Type: ApplicationFiled: August 3, 2022Publication date: November 24, 2022Applicant: AGC Inc.Inventors: Takefumi ABE, Kaori TSURUOKA, Tetsuji SHIMOHIRA, Saki TAKEI, Shotaro BEPPU
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Patent number: 11469377Abstract: To provide a composition having a very low refractive index, an organic photoelectronic element using the composition, and simple methods for producing such a composition and an organic photoelectronic element. A composition comprising a fluorinated polymer, an organic semiconductor material and a dopant.Type: GrantFiled: June 24, 2019Date of Patent: October 11, 2022Assignees: NATIONAL UNIVERSITY CORPORATION YAMAGATA UNIVERSITY, AGC Inc.Inventors: Daisuke Yokoyama, Takefumi Abe, Yasuhiro Kuwana
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Patent number: 11437596Abstract: To provide an organic photoelectronic element excellent in light emitting characteristics and long-term reliability. The organic photoelectronic element comprises a substrate, an anode provided on the substrate, a cathode facing the anode, a light emitting layer disposed between the anode and the cathode, a hole transport layer disposed between the light emitting layer and the anode, and an electron blocking layer provided in contact with the light emitting layer and the hole transport layer between the light emitting layer and the hole transport layer, wherein the hole transport layer contains a fluorinated polymer and an organic semiconductor material, and has a refractive index in the wavelength range of from 450 nm to 800 nm, of at most 1.Type: GrantFiled: February 3, 2020Date of Patent: September 6, 2022Assignees: AGC Inc., National University Corporation Yamagata UniversityInventors: Shigeki Hattori, Takefumi Abe, Kaori Tsuruoka, Yasuhiro Kuwana, Daisuke Yokoyama
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Patent number: 11355734Abstract: To provide an organic photoelectronic element, of which the external quantum efficiency is improved, the power consumption is low and the service life is prolonged. The organic photoelectronic element comprises a substrate, an anode provided on the substrate, a cathode facing the anode, a light emitting layer disposed between the anode and the cathode, and a hole transport layer provided in contact with the light emitting layer between the light emitting layer and the anode, wherein the hole transport layer contains an organic semiconductor material and a fluorinated polymer, and at the surface of the hole transport layer in contact with the light emitting layer, the fluorinated polymer is present.Type: GrantFiled: February 3, 2020Date of Patent: June 7, 2022Assignees: AGC Inc., National University Corporation Yamagata UniversityInventors: Takefumi Abe, Yasuhiro Kuwana, Shigeki Hattori, Kaori Tsuruoka, Daisuke Yokoyama
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Patent number: 10892418Abstract: To provide a charge injection layer in which the refractive index is sufficiently low and unbalance in the composition of materials is less likely to occur, and a method for its production as well as an organic photoelectronic element and a method for its production. The charge injection layer contains a fluorinated polymer and a semiconductor material, and has a refractive index in the wavelength range of from 450 to 800 nm, of at most 1.60.Type: GrantFiled: February 3, 2020Date of Patent: January 12, 2021Assignees: AGC Inc., National University Corporation Yamagata UniversityInventors: Shigeki Hattori, Takefumi Abe, Kaori Tsuruoka, Yasuhiro Kuwana, Daisuke Yokoyama
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Patent number: 10879468Abstract: To provide a layer such as a charge transport layer having a refractive index significantly lowered without impairing electrical conductivity and surface roughness, and a method for producing it. A deposited film composition obtained by co-depositing a fluorinated polymer having a saturated vapor pressure at 300° C. of at least 0.001 Pa and an organic semiconductor material.Type: GrantFiled: June 4, 2019Date of Patent: December 29, 2020Assignees: National University Corporation Yamagata University, AGC Inc.Inventors: Daisuke Yokoyama, Takefumi Abe, Yasuhiro Kuwana
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Publication number: 20200176678Abstract: To provide a charge injection layer in which the refractive index is sufficiently low and unbalance in the composition of materials is less likely to occur, and a method for its production as well as an organic photoelectronic element and a method for its production. The charge injection layer contains a fluorinated polymer and a semiconductor material, and has a refractive index in the wavelength range of from 450 to 800 nm, of at most 1.60.Type: ApplicationFiled: February 3, 2020Publication date: June 4, 2020Applicants: AGC Inc., National University Corporation Yamagata UniversityInventors: Shigeki HATTORI, Takefumi ABE, Kaori TSURUOKA, Yasuhiro KUWANA, Daisuke YOKOYAMA
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Publication number: 20200176715Abstract: To provide an organic photoelectronic element, of which the external quantum efficiency is improved, the power consumption is low and the service life is prolonged. The organic photoelectronic element comprises a substrate, an anode provided on the substrate, a cathode facing the anode, a light emitting layer disposed between the anode and the cathode, and a hole transport layer provided in contact with the light emitting layer between the light emitting layer and the anode, wherein the hole transport layer contains an organic semiconductor material and a fluorinated polymer, and at the surface of the hole transport layer in contact with the light emitting layer, the fluorinated polymer is present.Type: ApplicationFiled: February 3, 2020Publication date: June 4, 2020Applicants: AGC Inc., National University Corporation Yamagata UniversityInventors: Takefumi ABE, Yasuhiro Kuwana, Shigeki Hattori, Kaori Tsuruoka, Daisuke Yokoyama
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Publication number: 20200168829Abstract: To provide an organic photoelectronic element excellent in light emitting characteristics and long-term reliability. The organic photoelectronic element comprises a substrate, an anode provided on the substrate, a cathode facing the anode, a light emitting layer disposed between the anode and the cathode, a hole transport layer disposed between the light emitting layer and the anode, and an electron blocking layer provided in contact with the light emitting layer and the hole transport layer between the light emitting layer and the hole transport layer, wherein the hole transport layer contains a fluorinated polymer and an organic semiconductor material, and has a refractive index in the wavelength range of from 450 nm to 800 nm, of at most 1.Type: ApplicationFiled: February 3, 2020Publication date: May 28, 2020Applicants: AGC Inc., National University Corporation Yamagata UniversityInventors: Shigeki HATTORI, Takefumi ABE, Kaori TSURUOKA, Yasuhiro KUWANA, Daisuke YOKOYAMA
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Patent number: 10608183Abstract: To provide a charge transport layer excellent in the external quantum efficiency, and an organic photoelectronic element comprising the charge transport layer. A charge transport layer comprising a film containing a fluorinated polymer and a semiconductor material, wherein the film has a material composition such that ?Eth is within a range of from 0.010 to 0.080 MV/cm. An organic photoelectronic element comprising the charge transport layer.Type: GrantFiled: June 4, 2019Date of Patent: March 31, 2020Assignees: AGC Inc., National University Corporation Yamagata UniversityInventors: Takefumi Abe, Yasuhiro Kuwana, Shigeki Hattori, Kaori Tsuruoka, Daisuke Yokoyama
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Publication number: 20190312202Abstract: To provide a composition having a very low refractive index, an organic photoelectronic element using the composition, and simple methods for producing such a composition and an organic photoelectronic element. A composition comprising a fluorinated polymer, an organic semiconductor material and a dopant.Type: ApplicationFiled: June 24, 2019Publication date: October 10, 2019Applicants: NATIONAL UNIVERSITY CORPORATION YAMAGATA UNIVERSITY, AGC Inc.Inventors: Daisuke YOKOYAMA, Takefumi ABE, Yasuhiro KUWANA
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Publication number: 20190305226Abstract: To provide a layer such as a charge transport layer having a refractive index significantly lowered without impairing electrical conductivity and surface roughness, and a method for producing it. A deposited film composition obtained by co-depositing a fluorinated polymer having a saturated vapor pressure at 300° C. of at least 0.001 Pa and an organic semiconductor material.Type: ApplicationFiled: June 4, 2019Publication date: October 3, 2019Applicants: National University Corporation Yamagata University, AGC Inc.Inventors: Daisuke YOKOYAMA, Takefumi ABE, Yasuhiro KUWANA
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Publication number: 20190288205Abstract: To provide a charge transport layer excellent in the external quantum efficiency, and an organic photoelectronic element comprising the charge transport layer. A charge transport layer comprising a film containing a fluorinated polymer and a semiconductor material, wherein the film has a material composition such that ?Eth is within a range of from 0.010 to 0.080 MV/cm. An organic photoelectronic element comprising the charge transport layer.Type: ApplicationFiled: June 4, 2019Publication date: September 19, 2019Applicants: AGC Inc., National University Corporation Yamagata UniversityInventors: Takefumi ABE, Yasuhiro Kuwana, Shigeki Hattori, Kaori Tsuruoka, Daisuke Yokoyama
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Patent number: 10241404Abstract: To provide a photosensitive resin composition containing a crosslinkable fluororesin which hardly damages a substrate of e.g. an organic semiconductor when a resin film is formed, and a resin film using it, an organic semiconductor device and its production process, and a fluororesin suitable for the photosensitive resin composition. A photosensitive resin composition comprising a fluororesin having a polymerizable carbon-carbon double bond and having a fluorine atom content of at least 47 mass %, a crosslinking agent having a polymerizable carbon-carbon double bond (excluding the fluororesin), a photoinitiator and a non-aromatic fluorinated solvent.Type: GrantFiled: June 20, 2017Date of Patent: March 26, 2019Assignee: AGC Inc.Inventors: Masaki Obi, Tomoaki Sakurada, Takefumi Abe
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Publication number: 20180371284Abstract: To provide a coating liquid composition containing a fluororesin, whereby a film excellent in the surface flatness can be formed by a plate printing method. A coating liquid composition comprising a fluororesin having an aliphatic ring in the main chain and a fluorinated solvent, wherein the fluorinated solvent has a boiling point of at least 185° C., and the composition has a viscosity of at most 1,000 mP·s at 25° C.Type: ApplicationFiled: July 27, 2018Publication date: December 27, 2018Applicant: AGC Inc.Inventors: Naoko SHIROTA, Miyako SASAKI, Takefumi ABE