Patents by Inventor Akiyoshi Takeuchi
Akiyoshi Takeuchi 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: 10566141Abstract: Provided is a separator having excellent tearing strength, denseness, and impedance performance, and an aluminum electrolytic capacitor provided with the separator. The present invention constitutes a separator including beatable regenerated cellulose fibers, the separator having a CSF value X[ml] and tear index Y[mN·m2/g] within the ranges satisfying the following formulae. The present invention also constitutes an aluminum electrolytic capacitor in which at least one of the separators is used, the capacitor feeing formed by interposing the separator between an anode and a cathode. 0?X?300 ??Formula 1 15?Y?100 ??Formula 2 Y?0.175X?2.Type: GrantFiled: January 5, 2016Date of Patent: February 18, 2020Assignee: NIPPON KODOSHI CORPORATIONInventors: Atsushi Igawa, Naoki Fujimoto, Akiyoshi Takeuchi, Norihiro Wada
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Publication number: 20180315551Abstract: Provided is a separator having excellent tearing strength, denseness, and impedance performance, and an aluminum electrolytic capacitor provided with the separator. The present invention constitutes a separator including beatable regenerated cellulose fibers, the separator having a CSF value X[ml] and tear index Y[mN·m2/g] within the ranges satisfying the following formulae. The present invention also constitutes an aluminum electrolytic capacitor in which at least one of the separators is used, the capacitor feeing formed by interposing the separator between an anode and a cathode. 0?X?300 ??Formula 1 15?Y?100 ??Formula 2 Y?0.175 X?2.Type: ApplicationFiled: January 5, 2016Publication date: November 1, 2018Applicant: NIPPON KODOSHI CORPORATIONInventors: Atsushi IGAWA, Naoki FUJIMOTO, Akiyoshi TAKEUCHI, Norihiro WADA
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Patent number: 7737897Abstract: The present invention provides a folding type and portable wireless apparatus with a built-in antenna, particularly a portable wireless apparatus that reduces a local average SAR and improves performance of antenna. A housing open/close detecting unit 6 detects open/close of bodies 1 and 2. When the bodies 1 and 2 are open, a first antenna 4 and a wireless circuit 24 are connected and resonant frequency of a second antenna 5 is adjusted into a first frequency bandwidth, and when the bodies 1 and 2 are closed, the resonant frequency of the second antenna 5 is adjusted into the first frequency bandwidth and a second frequency bandwidth and a wireless circuit 24 is connected. Therefore, when the bodies 1 and 2 are open, it is possible to reduce a local average SAR by separating an antenna current. Further, when the bodies 1 and 2 are closed, it is possible to obtain a high antenna gain.Type: GrantFiled: February 1, 2006Date of Patent: June 15, 2010Assignee: Panasonic CorporationInventors: Akiyoshi Takeuchi, Yutaka Saito, Kouta Aoki
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Patent number: 7733278Abstract: A portable wireless device is provided that eliminates the need for an antenna protruding from an housing by including a first housing and a second housing operating as a dipole antenna thus ensuring portability and delivering a high antenna performance despite its compact, low-profile and lightweight design. The portable wireless device according to the invention includes a first housing 1; a second housing 2; and a sliding unit 21 for slidably coupling the first housing 1 and the second housing 2 to each other; wherein the first housing 1 is arranged a predetermined spacing apart from the second housing 2 and includes a power feeding unit 7 for feeding power: between the first housing 1 and the second housing 2 and wherein the first housing 1 and the second housing 2 operate as a dipole antenna. The portable wireless device does not include an antenna protruding from an housing. This ensures portability and delivers a high antenna performance despite its compact, low-profile and lightweight design.Type: GrantFiled: February 21, 2006Date of Patent: June 8, 2010Assignee: Panasonic CorporationInventors: Yoshihiro Kanasaki, Akiyoshi Takeuchi, Yutaka Saito, Kouta Aoki
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Publication number: 20090033562Abstract: The present invention provides a folding type and portable wireless apparatus with a built-in antenna, particularly a portable wireless apparatus that reduces a local average SAR and improves performance of antenna. A housing open/close detecting unit 6 detects open/close of bodies 1 and 2. When the bodies 1 and 2 are open, a first antenna 4 and a wireless circuit 24 are connected and resonant frequency of a second antenna 5 is adjusted into a first frequency bandwidth, and when the bodies 1 and 2 are closed, the resonant frequency of the second antenna 5 is adjusted into the first frequency bandwidth and a second frequency bandwidth and a wireless circuit 24 is connected. Therefore, when the bodies 1 and 2 are open, it is possible to reduce a local average SAR by separating an antenna current. Further, when the bodies 1 and 2 are closed, it is possible to obtain a high antenna gain.Type: ApplicationFiled: February 1, 2006Publication date: February 5, 2009Applicant: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.Inventors: Akiyoshi Takeuchi, Yutaka Saito, Kouta Aoki
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Publication number: 20090033566Abstract: A folding type mobile radio that can ensure high antenna performance on a desk in addition to realizing of downsizing and slimming down is provided. An antenna element 9 has a main part placed in a lower case 10 roughly in parallel with the cabinet width direction and is connected to a matching circuit 13 on a circuit board 11 placed in the lower case 10 by spring contact or soldering, for example. The matching circuit 13 is connected to a wireless circuit 14. A conductor element 3 is placed in an upper case 1 and is connected at one end to a ground pattern of an upper circuit board 2 and is opened at an opposite end. Particularly, the conductor element 3 has a main part placed roughly in parallel with the antenna element 9 and the connection part with the ground pattern of the upper circuit board 2 is placed on the antenna element feeding part side on the hinge part 5 side.Type: ApplicationFiled: March 1, 2006Publication date: February 5, 2009Applicant: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.Inventors: Seiichi Nakanishi, Kouta Aoki, Yutaka Saito, Akiyoshi Takeuchi
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Publication number: 20090033563Abstract: A portable wireless device is provided that eliminates the need for an antenna protruding from an housing by including a first housing and a second housing operating as a dipole antenna thus ensuring portability and delivering a high antenna performance despite its compact, low-profile and lightweight design. The portable wireless device according to the invention includes a first housing 1; a second housing 2; and a sliding unit 21 for slidably coupling the first housing 1 and the second housing 2 to each other; wherein the first housing 1 is arranged a predetermined spacing apart from the second housing 2 and includes a power feeding unit 7 for feeding power: between the first housing 1 and the second housing 2 and wherein the first housing 1 and the second housing 2 operate as a dipole antenna. The portable wireless device does not include an antenna protruding from an housing. This ensures portability and delivers a high antenna performance despite its compact, low-profile and lightweight design.Type: ApplicationFiled: February 21, 2006Publication date: February 5, 2009Applicant: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.Inventors: Yoshihiro Kanasaki, Akiyoshi Takeuchi, Yutaka Saito, Kouta Aoki