Patents Assigned to NEC Tokin Corporation
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Patent number: 10192676Abstract: A noise filter includes a plurality of inductor elements connected with one another in series. The inductor element includes a ring-shaped magnetic core, a winding wound around the magnetic core, and a ground terminal disposed between the magnetic core and the winding, the ground terminal being connected to a ground. The ground terminal includes a conductive part that surrounds at least a part of an outer periphery of the magnetic core.Type: GrantFiled: June 3, 2016Date of Patent: January 29, 2019Assignee: NEC TOKIN CORPORATIONInventor: Yusuke Ohdaira
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Patent number: 9716317Abstract: An antenna device, which has wide-angle directivity and a configuration suitable to be used in a portable electronic apparatus, includes a flat board-like substantially rectangular soft magnetic body, and a loop-shaped coil disposed from a front surface to a rear surface of the soft magnetic body such that a region surrounded by the coil includes at least a part of a specific edge, i.e., one edge out of four edges of the soft magnetic body, and does not include a facing edge that faces the specific edge.Type: GrantFiled: April 22, 2011Date of Patent: July 25, 2017Assignee: NEC TOKIN CORPORATIONInventors: Kenichi Chatani, Naoharu Yamamoto, Toshiaki Oka, Takashi Otsuki
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Publication number: 20170117081Abstract: A soft magnetic molded body, in which a binder component is used to bind a soft magnetic metal powder that has a flat shape, includes 60% by volume or more of the soft magnetic metal powder and 10-30% by volume of fine open pores. The binder component includes an inorganic oxide as a main component.Type: ApplicationFiled: March 13, 2015Publication date: April 27, 2017Applicant: NEC TOKIN CORPORATIONInventors: Kenichi CHATANI, Kenji IKEDA, Toshinori TSUDA
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Patent number: 9576726Abstract: An electronic equipment is provided with an antenna including a coil, a load, a power feeding unit for feeding power received by the antenna to the load, a communication unit for communicating with the outside world via the antenna, a switching circuit installed between the antenna and the communication unit, and a switching control unit for controlling ON/OFF of the switching circuit according to power to be received by the antenna.Type: GrantFiled: December 26, 2011Date of Patent: February 21, 2017Assignee: NEC TOKIN CORPORATIONInventors: Masashi Mori, Koichi Mishina, Yuichi Hosokawa, Koji Sato
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Patent number: 9544694Abstract: A piezoelectric vibration module includes a piezoelectric element, a wiring member connected to the piezoelectric element and drawn out to the outside, and an elastic plate bonded to one surface of the piezoelectric element, wherein the elastic plate is made of a silicone rubber.Type: GrantFiled: July 13, 2012Date of Patent: January 10, 2017Assignee: NEC TOKIN CORPORATIONInventors: Yoshiyuki Abe, Takeshi Mizuno, Hiroshi Shima, Masao Yamaguchi, Noriaki Ikezawa, Katsunori Kumasaka
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Patent number: 9468134Abstract: In order to provide a noise suppression sheet whose imaginary part magnetic permeability ??, representing a magnetic loss component, is large at a GHz-band frequency, thus having an excellent noise suppression effect, the noise suppression sheet comprises a flat magnetic powder having a saturation magnetostriction of 12.0×10?6 or more and 38.0×10?6 or less and an organic binder.Type: GrantFiled: February 20, 2013Date of Patent: October 11, 2016Assignee: NEC TOKIN CORPORATIONInventor: Toshiyuki Igarashi
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Patent number: 9452594Abstract: Provided is an electroconductive polymer composition with a good film forming property and a high electroconductivity. Also, provided is an electroconductive polymer material and an electroconductive substrate with a high electroconductivity and transparency. Further, provided is a solid electrolytic capacitor with a high capacity and a low ESR. Disclosed is an electroconductive polymer composition, containing an electroconductive polymer obtained by an oxidation polymerization by using an oxidant in a reaction solution which contains at least one monomer selected from the group consisting of pyrrole, thiophene and derivatives thereof, a polyacid or a salt thereof as a dopant, and a solvent containing water and an aprotic solvent.Type: GrantFiled: December 7, 2012Date of Patent: September 27, 2016Assignee: NEC Tokin CorporationInventors: Tomoki Nobuta, Satoshi Suzuki, Yasuhisa Sugawara, Yasuhiro Tomioka
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Patent number: 9455092Abstract: An electric conductive polymer suspension is produced by performing chemical oxidative polymerization of a monomer for providing an electric conductive polymer by using an oxidant in a solvent containing an organic acid or a salt thereof as a dopant to form an electric conductive polymer, recovering the electric conductive polymer, allowing an oxidant to act on the electric conductive polymer in an aqueous solvent containing a polyacid, and further mixing a dispersant with a branched structure and then pulverizing the electric conductive polymer. According to the electric conductive polymer suspension, an organic material high in conductivity, and excellent in adhesiveness to a substrate and water resistance, and a method for producing the material, as well as an electrolytic capacitor and a method for producing the capacitor can be provided.Type: GrantFiled: May 17, 2012Date of Patent: September 27, 2016Assignee: NEC Tokin CorporationInventors: Yasuhisa Sugawara, Tomoki Nobuta, Satoshi Suzuki, Yasuhiro Tomioka
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Publication number: 20160249120Abstract: In the present invention, a device is provided with a main surface member, a piezoelectric body plate, a first support part, and a housing. The main surface member is used as a vibration plate. The piezoelectric body plate vibrates according to an electric signal. The first support part supports the piezoelectric body plate. The housing has a second support part that supports the main surface member and extends in a prescribed direction that intersects the main surface member. The first support part is secured to the second support so that the second support part vibrates in the prescribed direction according to the vibration of the piezoelectric body plate. The vibration of the piezoelectric body plate is transmitted to the main surface member via the first support part and the second support part, and due to this the main surface member vibrates to generate a sound.Type: ApplicationFiled: October 21, 2014Publication date: August 25, 2016Applicants: NEC TOKIN CORPORATION, SHARP KABUSHIKI KAISHAInventors: Yoshiyuki ABE, Katsunori KUMASAKA, Kouichi SHUTA, Osamu YAMAZAKI, Hiroshi SHIMA, Noriaki IKEZAWA
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Publication number: 20160177429Abstract: An Fe-based nano-crystalline alloy formed from an alloy composition of (FeE)(100-X-Y-Z)BXPYCuZ having an amorphous phase as a main phase, wherein 79?100-X-Y-Z?86 atomic %, 4?X?9 atomic %, 1?Y?10 atomic %, and 0.5?Z?1.2 atomic %, and wherein (FeE) includes Fe and at least one element selected from the group consisting of Ti, Zr, Hf, Nb, Ta, Mo, W, Cr, Al, Mn, Ag, Zn, Sn, As, Sb, Bi, Y, N, O and a rare-earth element, wherein a combined total of said at least one element selected from the group consisting of Ti, Zr, Hf, Nb, Ta, Mo, W, Cr, Al, Mn, Ag, Zn, Sn, As, Sb, Bi, Y, N, O and a rare-earth element is in an amount of 3 atomic % or less relative to the whole composition.Type: ApplicationFiled: February 26, 2016Publication date: June 23, 2016Applicants: NEC Tokin Corporation, Tohoku UniversityInventors: Akiri URATA, Yasunobo YAMADA, Hiroyuki MATSUMOTO, Shigeyoshi YOSHIDA, Akihiro MAKINO
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Publication number: 20160134012Abstract: A communication device includes an antenna unit, a switch unit, a matching unit which is connected between the antenna and switch units, a communication unit which is connected to the switch unit, and a switch control unit. When the switch unit is in a conductive state, the matching unit matches a first impedance occurring if the antenna unit is seen from the matching unit and a second impedance occurring if the switch unit is seen from the matching unit. The switch control unit controls the switch unit so that the switch unit is set to the conductive state when the communication unit communicates via the antenna unit, and so that the switch unit is set to an interrupted state when the communication unit is to be protected from overvoltage. The switch control unit and switch unit are semiconductors formed under a first process rule and second process rule, respectively.Type: ApplicationFiled: September 12, 2014Publication date: May 12, 2016Applicant: NEC TOKIN CORPORATIONInventors: Kazumasa MAKITA, Masaki KURIMOTO, Koji SATO, Masashi MORI
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Patent number: 9329087Abstract: A pyroelectric-type infrared sensor is provided with: a sensor element; a shield case for covering the sensor element; an infrared transmission filter; an output circuit, which performs impedance conversion to output signals of the sensor element and outputs the signals; and at least one reflecting film. In the pyroelectric-type infrared sensor, the at least one reflecting film, which reflects infrared, is provided between the infrared transmission filter attached to the shield case and surface electrodes, and the infrared transmission filter is disposed extremely close to the surface electrodes.Type: GrantFiled: July 11, 2012Date of Patent: May 3, 2016Assignee: NEC TOKIN CORPORATIONInventor: Masahiro Saito
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Publication number: 20160093447Abstract: A solid electrolytic capacitor includes: a capacitor element including a sintered compact of a valve action metal, a dielectric layer, an electrolyte layer, and a cathode layer sequentially formed over a surface of the sintered compact, and an anode wire drawn out of the sintered compact; an anode terminal; a cathode terminal; and an exterior resin. The anode terminal includes a mounting portion and an upright portion. The upright portion has a trapezoidal shape. A length of a welding surface corresponding to an edge of the upright portion on the anode wire side is set to be longer than a length of the upright portion on the mounting portion side and to be longer than a width of the anode wire.Type: ApplicationFiled: August 5, 2015Publication date: March 31, 2016Applicant: NEC TOKIN CORPORATIONInventors: Junichi KATO, Yasuhiro MATSUSHIMA, Daisuke TAKADA, Kazuaki SAITO
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Patent number: 9293263Abstract: An outer insulation member made of a first resin packs a part of an anode terminal. The packed part of the anode terminal has a predetermined section. All surfaces of the predetermined section consist of a front surface, a back surface and edges connecting between the front surface and the back surface. The front surface includes a connection area. An anode lead wire is connected to the connection area while being not connected to the anode terminal other than the connection area. The all surfaces of the predetermined section are completely covered with a mask layer made of a second resin except for the connection area. The second resin is different from the first resin in at least one of composition thereof, content of an inclusion, size of an inclusion and shape of an inclusion.Type: GrantFiled: January 29, 2014Date of Patent: March 22, 2016Assignees: KEMET Electronics Corporation, NEC Tokin CorporationInventors: Yanming Liu, Yuji Yoshida, Hayato Ueda, Daisuke Takada, Satoshi Iwai, Takashi Mizukoshi
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Patent number: 9287028Abstract: An alloy composition of Fe(100-X-Y-Z)BXPYCuz, where 4?X?14 atomic %, 0<Y?10 atomic %, and 0.5?Z?2 atomic %. This alloy composition has an amorphous phase as a main phase. This alloy composition is used as a starting material and exposed to a heat-treatment so that nanocrystals comprising no more than 25 nm of bccFe can be crystallized. Thus, an Fe-based nano-crystalline alloy having superior magnetic properties can be obtained.Type: GrantFiled: July 20, 2010Date of Patent: March 15, 2016Assignees: NEC TOKIN CORPORATION, TOHOKU UNIVERSITYInventors: Akiri Urata, Yasunobu Yamada, Hiroyuki Matsumoto, Shigeyoshi Yoshida, Akihiro Makino
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Patent number: 9274006Abstract: An infrared sensor includes a circuit board, at least two support portions, a FET element and a pyroelectric element. The circuit board has an upper principal surface formed with plural electrodes. Each of the support portions has an upper surface, a lower surface, an upper conductive pattern formed on the upper surface and a lower conductive pattern formed on the lower surface. The upper conductive pattern is electrically connected with the lower conductive pattern. The lower conductive pattern is connected to an electrode of the upper principal surface of the circuit board. The FET element is located between the at least two support portions and arranged on the upper principal surface of the circuit board. The pyroelectric element is electrically connected with the upper conductive patterns of the support portions, and is supported by the support portions so as to be located above the FET element.Type: GrantFiled: August 5, 2013Date of Patent: March 1, 2016Assignee: NEC TOKIN CORPORATIONInventors: Yuji Nitobe, Masahiro Saito, Shigemi Fujiwara, Akitoshi Shimo
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Publication number: 20160020600Abstract: A wireless power transmission device includes: a wireless power transmission unit, a power transmission circuit, a wireless communication unit, an interruption circuit, a communication circuit, and a control circuit. The power transmission circuit is connected to the wireless power transmission unit and wirelessly transmits power through the wireless power transmission unit to another party's device. The interruption circuit is connected to the wireless communication unit. The communication circuit is connected through the interruption circuit to the wireless communication unit and communicates with the other party's device via the wireless communication unit. The control circuit is connected to the power transmission circuit and the interruption circuit and, when the power is transmitted, controls the interruption circuit to interrupt between the wireless communication unit and the communication circuit on the basis of a power level transmitted by the power transmission circuit.Type: ApplicationFiled: March 7, 2014Publication date: January 21, 2016Applicant: NEC TOKIN CORPORATIONInventors: Masashi MORI, Yuichi SAKURAI, Kazumasa MAKITA, Koichi MISHINA, Junetsu URATA, Yuichi HOSOKAWA
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Patent number: 9219299Abstract: A resonator is connected to a first plane which is one of a power plane and a ground plane, wherein the power plane and the ground plane are apart from each other in an up-down direction. The resonator comprises a connecting portion and a body portion. The connecting portion is connected to the first plane. The connecting portion extends in the up-down direction beyond a second plane, which is a remaining one of the power plane and the ground plane, while not being in electrical contact with the second plane. The body portion is connected to the connecting portion while not being in contact with the second plane. The body portion is arranged so that the second plane is located between the body portion and the first plane in the up-down direction.Type: GrantFiled: August 21, 2013Date of Patent: December 22, 2015Assignees: NEC TOKIN CORPORATION, NATIONAL UNIVERSITY CORPORATION OKAYAMA UNIVERSITYInventors: Koichi Kondo, Naoharu Yamamoto, Yoshitaka Toyota, Kengo Iokibe, Farhan Zaheed Mahmood
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Publication number: 20150357829Abstract: This power reception apparatus is provided with a non-contact power reception antenna, a power supply unit, a communication antenna, a communication unit that performs communication via the communication antenna, a communication switch, and a switch control unit. The power supply unit outputs an output voltage corresponding to power received via the power reception antenna. The communication switch can transit between an electrically connected state wherein the communication unit is electrically connected to the communication antenna, and a disconnected state wherein the communication unit is disconnected from the communication antenna. The switch control unit makes the communication switch transit to the disconnected state when the output voltage of the power supply unit is increased over a first voltage, and the switch control unit makes the communication switch transit to the electrically connected state when the output voltage is reduced to below a second voltage that is lower than the first voltage.Type: ApplicationFiled: November 5, 2013Publication date: December 10, 2015Applicant: NEC TOKIN CORPORATIONInventor: Kazumasa MAKITA
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Patent number: 9208932Abstract: A magnetic powder comprises a first magnetic particle, one or more inorganic insulating particles and one or more second magnetic particles. The first magnetic particle is made of a soft magnetic metal. The first magnetic particle has a flat shape. The inorganic insulating particles are attached to the first magnetic particle. The inorganic insulating particles partially cover the first magnetic particle. Each of the second magnetic particles is made of a soft magnetic metal. Each of the second magnetic particles has a flat shape. The second magnetic particles are attached to the first magnetic particle via the inorganic insulating particles.Type: GrantFiled: October 3, 2013Date of Patent: December 8, 2015Assignee: NEC TOKIN CORPORATIONInventor: Toshiyuki Igarashi