Patents by Inventor Masahide Matsuura
Masahide Matsuura 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: 10243145Abstract: An organic electroluminescence device having a layer of an organic light emitting medium which comprises (A) a specific arylamine compound and (B) at least one compound selected from specific anthracene derivatives, spirofluorene derivatives, compounds having condensed rings and metal complex compounds and is disposed between a pair of electrodes and an organic light emitting medium comprising the above components (A) and (B) are provided. The organic electroluminescence device exhibits a high purity of color, has excellent heat resistance and a long life and efficiently emits bluish to yellowish light. The organic light emitting medium can be advantageously used for the organic electroluminescence device.Type: GrantFiled: March 20, 2018Date of Patent: March 26, 2019Assignee: IDEMITSU KOSAN CO., LTD.Inventors: Masahide Matsuura, Masakazu Funahashi, Kenichi Fukuoka, Chishio Hosokawa
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Patent number: 10038143Abstract: Provided are a polymer compound, which comprises a copolymer containing at least a unit B, and a unit A and/or a unit C referring to repeating units A, B and C, and which has a weight-average molecular weight of from 50,000 to 1,500,000; a material for electronic devices and a material for organic electroluminescent devices comprising the compound; an organic electroluminescent device having an anode, a cathode and an organic thin film layer, wherein at least one organic thin film layer contains the polymer compound; a coating liquid containing the polymer compound and a solvent; and a method for producing an organic electroluminescent device using the coating liquid. Also provided is a polymer compound suitable to a coating method; a material for electronic devices and a material for organic electroluminescent devices comprising the compound; and an organic EL device, a coating liquid and a method for producing an organic EL device using the compound.Type: GrantFiled: September 13, 2013Date of Patent: July 31, 2018Assignee: IDEMITSU KOSAN CO., LTD.Inventors: Hidetoshi Ono, Hironori Kawakami, Shigeru Matsuo, Kiyoshi Ikeda, Masahide Matsuura, Akinori Yomogita, Mitsunori Ito
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Publication number: 20180212152Abstract: An organic electroluminescence device having a layer of an organic light emitting medium which comprises (A) a specific arylamine compound and (B) at least one compound selected from specific anthracene derivatives, spirofluorene derivatives, compounds having condensed rings and metal complex compounds and is disposed between a pair of electrodes and an organic light emitting medium comprising the above components (A) and (B) are provided. The organic electroluminescence device exhibits a high purity of color, has excellent heat resistance and a long life and efficiently emits bluish to yellowish light. The organic light emitting medium can be advantageously used for the organic electroluminescence device.Type: ApplicationFiled: March 20, 2018Publication date: July 26, 2018Applicant: IDEMITSU KOSAN CO., LTD.Inventors: Masahide MATSUURA, Masakazu Funahashi, Kenichi Fukuoka, Chishio Hosokawa
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Patent number: 9960358Abstract: An organic electroluminescence device having a layer of an organic light emitting medium which comprises (A) a specific arylamine compound and (B) at least one compound selected from specific anthracene derivatives, spirofluorene derivatives, compounds having condensed rings and metal complex compounds and is disposed between a pair of electrodes and an organic light emitting medium comprising the above components (A) and (B) are provided. The organic electroluminescence device exhibits a high purity of color, has excellent heat resistance and a long life and efficiently emits bluish to yellowish light. The organic light emitting medium can be advantageously used for the organic electroluminescence device.Type: GrantFiled: June 30, 2017Date of Patent: May 1, 2018Assignee: IDEMITSU KOSAN CO., LTD.Inventors: Masahide Matsuura, Masakazu Funahashi, Kenichi Fukuoka, Chishio Hosokawa
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Patent number: 9847490Abstract: Provided are a copolymer having plural repeating units each having a specific structure, and having a weight-average molecular weight of from 100,000 to 3,000,000; a material for organic electronic devices and a material for organic electroluminescent devices containing the copolymer; a solution containing the copolymer and a solvent; and an organic electroluminescent device using the material for organic electroluminescent devices. The copolymer has not only charge transporting properties but also solubility and is suitable for forming a film according to a coating method. The present invention provides the copolymer, and a material for organic electronic devices and a material for organic electroluminescent devices containing the copolymer, an organic electroluminescent device, and a solution containing the copolymer.Type: GrantFiled: October 2, 2013Date of Patent: December 19, 2017Assignee: IDEMITSU KOSAN CO., LTD.Inventors: Akinori Yomogita, Shigeru Matsuo, Hidetoshi Ono, Kiyoshi Ikeda, Hironori Kawakami, Masahide Matsuura, Mitsunori Ito
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Publication number: 20170301863Abstract: An organic electroluminescence device having a layer of an organic light emitting medium which comprises (A) a specific arylamine compound and (B) at least one compound selected from specific anthracene derivatives, spirofluorene derivatives, compounds having condensed rings and metal complex compounds and is disposed between a pair of electrodes and an organic light emitting medium comprising the above components (A) and (B) are provided. The organic electroluminescence device exhibits a high purity of color, has excellent heat resistance and a long life and efficiently emits bluish to yellowish light. The organic light emitting medium can be advantageously used for the organic electroluminescence device.Type: ApplicationFiled: June 30, 2017Publication date: October 19, 2017Applicant: IDEMITSU KOSAN CO., LTD.Inventors: Masahide MATSUURA, Masakazu FUNAHASHI, Kenichi FUKUOKA, Chishio HOSOKAWA
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Patent number: 9728727Abstract: An organic electroluminescence device having a layer of an organic light emitting medium which comprises (A) a specific arylamine compound and (B) at least one compound selected from specific anthracene derivatives, spirofluorene derivatives, compounds having condensed rings and metal complex compounds and is disposed between a pair of electrodes and an organic light emitting medium comprising the above components (A) and (B) are provided. The organic electroluminescence device exhibits a high purity of color, has excellent heat resistance and a long life and efficiently emits bluish to yellowish light. The organic light emitting medium can be advantageously used for the organic electroluminescence device.Type: GrantFiled: August 12, 2013Date of Patent: August 8, 2017Assignee: IDEMITSU KOSAN CO., LTD.Inventors: Masahide Matsuura, Masakazu Funahashi, Kenichi Fukuoka, Chishio Hosokawa
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Patent number: 9343682Abstract: An organic electroluminescence device having a layer of an organic light emitting medium which comprises (A) a specific arylamine compound and (B) at least one compound selected from specific anthracene derivatives, spirofluorene derivatives, compounds having condensed rings and metal complex compounds and is disposed between a pair of electrodes and an organic light emitting medium comprising the above components (A) and (B) are provided. The organic electroluminescence device exhibits a high purity of color, has excellent heat resistance and a long life and efficiently emits bluish to yellowish light. The organic light emitting medium can be advantageously used for the organic electroluminescence device.Type: GrantFiled: June 22, 2015Date of Patent: May 17, 2016Assignee: IDEMITSU KOSAN CO., LTD.Inventors: Masahide Matsuura, Masakazu Funahashi, Kenichi Fukuoka, Chishio Hosokawa
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Publication number: 20150287929Abstract: An organic electroluminescence device having a layer of an organic light emitting medium which comprises (A) a specific arylamine compound and (B) at least one compound selected from specific anthracene derivatives, spirofluorene derivatives, compounds having condensed rings and metal complex compounds and is disposed between a pair of electrodes and an organic light emitting medium comprising the above components (A) and (B) are provided. The organic electroluminescence device exhibits a high purity of color, has excellent heat resistance and a long life and efficiently emits bluish to yellowish light. The organic light emitting medium can be advantageously used for the organic electroluminescence device.Type: ApplicationFiled: June 22, 2015Publication date: October 8, 2015Applicant: IDEMITSU KOSAN CO., LTD.Inventors: Masahide Matsuura, Masakazu Funahashi, Kenichi Fukuoka, Chishio Hosokawa
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Publication number: 20150280131Abstract: Provided are a copolymer having plural repeating units each having a specific structure, and having a weight-average molecular weight of from 100,000 to 3,000,000; a material for organic electronic devices and a material for organic electroluminescent devices containing the copolymer; a solution containing the copolymer and a solvent; and an organic electroluminescent device using the material for organic electroluminescent devices. The copolymer has not only charge transporting properties but also solubility and is suitable for forming a film according to a coating method. The present invention provides the copolymer, and a material for organic electronic devices and a material for organic electroluminescent devices containing the copolymer, an organic electroluminescent device, and a solution containing the copolymer.Type: ApplicationFiled: October 2, 2013Publication date: October 1, 2015Applicant: IDEMITSU KOSAN CO., LTD.Inventors: Akinori Yomogita, Shigeru Matsuo, Hidetoshi Ono, Kiyoshi Ikeda, Hironori Kawakami, Masahide Matsuura, Mitsunori Ito
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Publication number: 20150249215Abstract: Provided are a polymer compound, which comprises a copolymer containing at least a unit B, and a unit A and/or a unit C referring to repeating units A, B and C, and which has a weight-average molecular weight of from 50,000 to 1,500,000; a material for electronic devices and a material for organic electroluminescent devices comprising the compound; an organic electroluminescent device having an anode, a cathode and an organic thin film layer, wherein at least one organic thin film layer contains the polymer compound; a coating liquid containing the polymer compound and a solvent; and a method for producing an organic electroluminescent device using the coating liquid. Also provided is a polymer compound suitable to a coating method; a material for electronic devices and a material for organic electroluminescent devices comprising the compound; and an organic EL device, a coating liquid and a method for producing an organic EL device using the compound.Type: ApplicationFiled: September 13, 2013Publication date: September 3, 2015Applicant: IDEMITSU KOSAN CO., LTD.Inventors: Hidetoshi Ono, Hironori Kawakami, Shigeru Matsuo, Kiyoshi Ikeda, Masahide Matsuura, Akinori Yomogita, Mitsunori Ito
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Patent number: 8902136Abstract: In an organic electroluminescence display device (30) comprising an organic EL element (26) having a structure wherein an organic luminescent medium (24) is sandwiched between a top electrode (20) and a bottom electrode (22), and a driving circuit (14) for driving the organic EL element (26), the organic luminescent medium (24) comprises a host compound and a triplet-related luminous compound and the driving circuit (14) applies a electric pulse voltage or pulse current having a frequency of 30 Hz or more and a duty ratio of 1/5 or less. In this way, it is possible to provide an organic EL display device which consumes a low electric power and has a long luminous life span, and a method for driving the same.Type: GrantFiled: January 6, 2014Date of Patent: December 2, 2014Assignee: Idemitsu Kosan Co., Ltd.Inventors: Masahide Matsuura, Chishio Hosokawa
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Patent number: 8766534Abstract: An organic electroluminescence element comprising: an anode; a first emitting layer comprising at least a first host material and a first dopant; a second emitting layer comprising at least a second host material and a second dopant; and a cathode in the order mentioned: wherein the energy gap Egh1 of the first host material, the energy gap Egd1 of the first dopant, the energy gap Egh2 of the second host material, and the energy gap Egd2 of the second dopant satisfy the following formulas; and the luminescent intensity I1 at the maximum luminescent wavelength of an emission spectrum derived from the first emitting layer, and the luminescent intensity I2 at the maximum luminescent wavelength of an emission spectrum derived from the second emitting layer satisfy the following formula: Egh1>Egd1 Egh2>Egd2 Egd1>Egd2 I1>3.5×I2.Type: GrantFiled: January 11, 2010Date of Patent: July 1, 2014Assignee: Idemitsu Kosan Co., Ltd.Inventors: Kenichi Fukuoka, Masahide Matsuura, Hiroshi Yamamoto, Chishio Hosokawa
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Patent number: 8759590Abstract: A specified indenopyrene compound containing a disubstituted amino group substituted with a group having a carbon number of from 1 to 40, which is a useful indenopyrene compound as an organic electronics material, and in particular, an indenopyrene compound which when used for organic thin film solar cells, displays a photoelectric conversion characteristic with high efficiency, is provided.Type: GrantFiled: October 4, 2009Date of Patent: June 24, 2014Assignee: Idemitsu Kosan Co., Ltd.Inventors: Hidetsugu Ikeda, Ryoji Maeda, Masahide Matsuura
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Publication number: 20140138664Abstract: In an organic electroluminescence display device (30) comprising an organic EL element (26) having a structure wherein an organic luminescent medium (24) is sandwiched between a top electrode (20) and a bottom electrode (22), and a driving circuit (14) for driving the organic EL element (26), the organic luminescent medium (24) comprises a host compound and a triplet-related luminous compound and the driving circuit (14) applies a electric pulse voltage or pulse current having a frequency of 30 Hz or more and a duty ratio of 1/5 or less. In this way, it is possible to provide an organic EL display device which consumes a low electric power and has a long luminous life span, and a method for driving the same.Type: ApplicationFiled: January 6, 2014Publication date: May 22, 2014Applicant: IDEMITSU KOSAN CO., LTD.Inventors: Masahide MATSUURA, Chishio Hosokawa
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Patent number: 8654043Abstract: In an organic electroluminescence display device (30) comprising an organic EL element (26) having a structure wherein an organic luminescent medium (24) is sandwiched between a top electrode (20) and a bottom electrode (22), and a driving circuit (14) for driving the organic EL element (26), the organic luminescent medium (24) comprises a host compound and a triplet-related luminous compound and the driving circuit (14) applies a electric pulse voltage or pulse current having a frequency of 30 Hz or more and a duty ratio of 1/5 or less. In this way, it is possible to provide an organic EL display device which consumes a low electric power and has a long luminous life span, and a method for driving the same.Type: GrantFiled: March 13, 2013Date of Patent: February 18, 2014Assignee: Idemitsu Kosan Co., Ltd.Inventors: Masahide Matsuura, Chishio Hosokawa
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Publication number: 20140021461Abstract: An organic electroluminescence device comprising a compound having a specific structure having a heteroatom and an organic electroluminescence device which comprises a cathode, an anode and an organic thin film layer which comprises at least one layer comprising at least a light emitting layer and is disposed between the cathode and the anode, wherein at least one layer in the organic thin film layer comprises the above compound. The device provides excellent efficiency of light emission, forms no defects in pixels, exhibits excellent heat resistance and has a long life.Type: ApplicationFiled: September 27, 2013Publication date: January 23, 2014Applicant: IDEMITSU KOSAN CO., LTD.Inventors: Toshihiro Iwakuma, Masahide Matsuura, Yuki Nakano, Hidetsugu Ikeda
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Publication number: 20130328030Abstract: An organic electroluminescence device having a layer of an organic light emitting medium which comprises (A) a specific arylamine compound and (B) at least one compound selected from specific anthracene derivatives, spirofluorene derivatives, compounds having condensed rings and metal complex compounds and is disposed between a pair of electrodes and an organic light emitting medium comprising the above components (A) and (B) are provided. The organic electroluminescence device exhibits a high purity of color, has excellent heat resistance and a long life and efficiently emits bluish to yellowish light. The organic light emitting medium can be advantageously used for the organic electroluminescence device.Type: ApplicationFiled: August 12, 2013Publication date: December 12, 2013Applicant: IDEMITSU KOSAN CO., LTD.Inventors: Masahide MATSUURA, Masakazu Funahashi, Kenichi Fukuoka, Chishio Hosokawa
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Patent number: 8563145Abstract: An organic electroluminescence device comprising a compound having a specific structure having a heteroatom and an organic electroluminescence device which comprises a cathode, an anode and an organic thin film layer which comprises at least one layer comprising at least a light emitting layer and is disposed between the cathode and the anode, wherein at least one layer in the organic thin film layer comprises the above compound. The device provides excellent efficiency of light emission, forms no defects in pixels, exhibits excellent heat resistance and has a long life.Type: GrantFiled: May 29, 2007Date of Patent: October 22, 2013Assignee: Idemitsu Kosan Co., Ltd.Inventors: Toshihiro Iwakuma, Masahide Matsuura, Yuki Nakano, Hidetsugu Ikeda
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Patent number: RE49118Abstract: A material for organic electroluminescence devices comprising a compound having a specific structure and an organic electroluminescence device comprising an organic thin film layer which comprises one layer or a plurality of layers comprising at least a light emitting layer and disposed between a cathode and an anode, wherein at least one layer in the organic thin film layer comprises the material for organic electroluminescence devices, are provided. The material provides the organic electroluminescence device exhibiting a great efficiency of light emission, having no defect pixels, exhibiting excellent heat resistance and having a long life.Type: GrantFiled: February 28, 2020Date of Patent: June 28, 2022Assignee: IDEMITSU KOSAN CO., LTD.Inventors: Yuki Nakano, Masahide Matsuura, Hidetsugu Ikeda, Toshihiro Iwakuma