Patents by Inventor Kenichi Fukuoka
Kenichi Fukuoka 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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Publication number: 20230036157Abstract: Provided is a base station capable of suppressing increase of overhead of allocation result report in frequency scheduling in multi-carrier communication and obtaining a sufficient frequency diversity effect. In the base station, encoding units (101-1 to 101-n) encode data (#1 to #n) to mobile stations (#1 to #n), modulation units (102-1 to 102-n) modulate the encoded data so as to generate a data symbol, a scheduler (103) performs frequency scheduling according to a CQI from each mobile station so as to uniformly allocate data to the respective mobile stations for a part of RB extracted from a plurality of RB, and an SCCH generation unit (105) generates control information (SCCH information) to report the allocation result in the scheduler (103) to the respective mobile stations.Type: ApplicationFiled: October 14, 2022Publication date: February 2, 2023Inventors: Kenichi KURI, Akihiko NISHIO, Masaru FUKUOKA, Kenichi MIYOSHI
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Patent number: 11503572Abstract: Provided is a base station capable of suppressing increase of overhead of allocation result report in frequency scheduling in multi-carrier communication and obtaining a sufficient frequency diversity effect. In the base station, encoding units (101-1 to 101-n) encode data (#1 to #n) to mobile stations (#1 to #n), modulation units (102-1 to 102-n) modulate the encoded data so as to generate a data symbol, a scheduler (103) performs frequency scheduling according to a CQI from each mobile station so as to uniformly allocate data to the respective mobile stations for a part of RB extracted from a plurality of RB, and an SCCH generation unit (105) generates control information (SCCH information) to report the allocation result in the scheduler (103) to the respective mobile stations.Type: GrantFiled: April 8, 2020Date of Patent: November 15, 2022Assignee: Panasonic Holdings CorporationInventors: Kenichi Kuri, Akihiko Nishio, Masaru Fukuoka, Kenichi Miyoshi
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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: 10079343Abstract: An organic electroluminescence device (1) includes: an anode (3); a cathode (4); and an organic thin-film layer (10) interposed between the anode (3) and the cathode (4). The organic thin-film layer (10) includes a phosphorescent-emitting layer (5) containing a host and a phosphorescent dopant. The host contains a first host and a second host. The first host includes a substituted or unsubstituted polycyclic fused aromatic skeleton, the skeleton having 10 to 30 ring-forming atoms not including an atom of a substituent. The second host has an affinity level greater than the affinity level of the first host.Type: GrantFiled: October 23, 2013Date of Patent: September 18, 2018Assignee: IDEMITSU KOSAN CO., LTD.Inventors: Kazuki Nishimura, Toshihiro Iwakuma, Kenichi Fukuoka, Chishio Hosokawa
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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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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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Patent number: 9209410Abstract: A material for organic electroluminescence devices of the invention which is for use in combination with at least one phosphorescent metal complex has a specific heterocyclic structure. The material for organic electroluminescence devices is used as a host material or a hole transporting material. An organic electroluminescence device having an anode, a cathode and an organic thin film layer having one or more layers which is interposed between the anode and cathode, in which at least one layer of the organic thin film layer contains the material for organic electroluminescence devices, has a high emitting efficiency, causes little pixel defects, is excellent in heat resistance, and shows a long lifetime.Type: GrantFiled: January 3, 2012Date of Patent: December 8, 2015Assignee: IDEMITSU KOSAN CO., LTD.Inventors: Toshihiro Iwakuma, Jun Endo, Masaki Numata, Kenichi Fukuoka
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Patent number: 9174938Abstract: An organic electroluminescence device including: an anode (10), a cathode (70), an emitting layer (40) including an organic compound, which is between the anode (10) and the cathode (70), two or more layers arranged in a hole injection and transport region which is between the anode (10) and the emitting layer (40), and one or more layers arranged in an electron injection and transport region which is between the emitting layer (40) and the cathode (70), wherein a layer in the hole injection and transport region, which is in contact with the emitting layer (40), includes an aromatic amine derivative having a carbazole skeleton, one of the layers other than the layer in contact with the emitting layer (40) in the hole injection and transport region includes one or more materials selected from the group consisting of thiophene derivatives, tricyclic or more cyclic fused aromatic derivatives, amine derivatives excluding the compound represented by the following formula (A), conductive polymers, CFx, CuPc, transiType: GrantFiled: December 19, 2008Date of Patent: November 3, 2015Assignee: IDEMITSU KOSAN CO., LTD.Inventors: Yukitoshi Jinde, Hiroyuki Saito, Kenichi Fukuoka, Hiroshi Yamamoto, Yuichiro Kawamura, Masahiro Kawamura, Takashi Arakane
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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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Patent number: 9082995Abstract: An organic EL device (1) includes an anode (3), a cathode (4) and an organic thin-film layer (5) provided between the anode (3) and the cathode (4). The organic thin-film layer (5) includes a single-layered mixed-color emitting layer (51) for providing mixed-color emission. The mixed-color emitting layer (51) contains a host, a fluorescent dopant for blue fluorescent emission and a phosphorescent dopant for red or green phosphorescent emission.Type: GrantFiled: July 4, 2008Date of Patent: July 14, 2015Assignee: IDEMITSU KOSAN CO., LTD.Inventors: Kazuki Nishimura, Chishio Hosokawa, Toshihiro Iwakuma, Kenichi Fukuoka, Tetsuya Inoue
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Patent number: 9054319Abstract: An organic electroluminescence device includes an anode, a cathode, and an organic thin-film layer interposed between the anode and the cathode. The organic thin-film layer includes a phosphorescent-emitting layer containing a host and a phosphorescent dopant, and an electron transporting layer that is provided closer to the cathode than the phosphorescent-emitting layer. The host contains a substituted or unsubstituted polycyclic fused aromatic skeleton.Type: GrantFiled: April 4, 2012Date of Patent: June 9, 2015Assignee: IDEMITSU KOSAN CO., LTD.Inventors: Kazuki Nishimura, Toshihiro Iwakuma, Kenichi Fukuoka, Chishio Hosokawa, Jun Endo, Nobuhiro Yabunouchi, Hiroshi Yamamoto
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Patent number: 8841003Abstract: In an organic electroluminescent element comprising an anode layer, an organic luminescent layer, an inorganic compound layer (or reductive dopant layer) and a cathode layer; the organic luminescent layer comprises an aromatic amine compound of a formula (1), and/or an aromatic amine compound of a formula (2) wherein A, B, and Ar1 to Ar6 are independently a C6-60 aromatic group which does not contain a styryl group nor an alkenyl group, at least one of A, Ar1, Ar2, or B, Ar3 to Ar6 contains at least three condensed aromatic rings, and p, q and r of a condensation number are an integer of 1 to 6. The element has significantly long half-life and high luminance even at low driving voltages.Type: GrantFiled: July 12, 2005Date of Patent: September 23, 2014Assignee: Idemitsu Kosan Co., Ltd.Inventors: Takashi Arakane, Kenichi Fukuoka, Chishio Hosokawa
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Patent number: 8779655Abstract: An organic electroluminescence device includes: a cathode; an anode; and a single-layered or multilayered organic thin-film layer provided between the cathode and the anode. The organic thin-film layer includes at least one emitting layer. The at least one emitting layer contains at least one phosphorescent material and a host material represented by the following formula (1).Type: GrantFiled: July 3, 2008Date of Patent: July 15, 2014Assignee: Idemitsu Kosan Co., Ltd.Inventors: Kazuki Nishimura, Toshihiro Iwakuma, Kenichi Fukuoka, Chishio Hosokawa, Masahiro Kawamura, Mitsunori Ito, Yoriyuki Takashima, Toshinari Ogiwara
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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: 8759819Abstract: An organic electroluminescence device includes an anode, a cathode, and an organic thin-film layer interposed between the anode and the cathode. The organic thin-film layer includes a phosphorescent-emitting layer containing a host and a phosphorescent dopant, and an electron transporting layer that is provided closer to the cathode than the phosphorescent-emitting layer. The host contains a substituted or unsubstituted polycyclic fused aromatic skeleton.Type: GrantFiled: November 21, 2008Date of Patent: June 24, 2014Assignee: Idemitsu Kosan Co., Ltd.Inventors: Kazuki Nishimura, Toshihiro Iwakuma, Kenichi Fukuoka, Chishio Hosokawa, Jun Endo, Nobuhiro Yabunouchi, Hiroshi Yamamoto
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Publication number: 20140131680Abstract: An organic electroluminescence device includes an anode, a cathode, and an organic thin-film layer interposed between the anode and the cathode. The organic thin-film layer includes a phosphorescent-emitting layer containing a host and a phosphorescent dopant, and an electron transporting layer that is provided closer to the cathode than the phosphorescent-emitting layer. The host contains a substituted or unsubstituted polycyclic fused aromatic skeleton.Type: ApplicationFiled: October 25, 2013Publication date: May 15, 2014Applicant: Idemitsu Kosan Co., Ltd.Inventors: Kazuki NISHIMURA, Toshihiro IWAKUMA, Kenichi FUKUOKA, Chishio HOSOKAWA, Jun ENDO, Nobuhiro YABUNOUCHI, Hiroshi YAMAMOTO
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Patent number: 8723171Abstract: An organic electroluminescence device including opposite anode and cathode, and a hole-transporting region, an emitting layer and an electron-transporting region in sequential order from the anode between the anode and the cathode, wherein the emitting layer includes a red emitting portion, a green emitting portion, and a blue emitting portion; the blue emitting portion includes a host BH and a fluorescent dopant FBD; the triplet energy ETfbd of the fluorescent dopant FBD is larger than the triplet energy ETbh of the host BH; the green emitting portion includes a host GH and a phosphorescent dopant PGD; the electron-transporting region includes a common electron-transporting layer adjacent to the red emitting portion, the green emitting portion and the blue emitting portion; the common electron-transporting layer includes a material having a triplet energy ETel larger than ETbh; and the difference between the affinity of the host GH and the affinity of the material constituting the common electron-transportinType: GrantFiled: May 2, 2013Date of Patent: May 13, 2014Assignee: Idemitsu Kosan Co., Ltd.Inventors: Kazuki Nishimura, Yuichiro Kawamura, Toshinari Ogiwara, Hitoshi Kuma, Kenichi Fukuoka, Chishio Hosokawa