Patents by Inventor Yoshiyuki Yamada
Yoshiyuki Yamada 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: 20170013477Abstract: A network control method and system are provided that achieve effective load reduction control, overviewing an entire network. A system for controlling a network (20) including a plurality of nodes (21, 22) includes: a traffic data collection function (11) of collecting traffic data from the network; a traffic feature extraction function (12) of extracting a traffic feature of the network in its entirety from the collected traffic data; and a parameter determination function (13) of determining a control parameter to be set on the nodes, based on the traffic feature.Type: ApplicationFiled: February 19, 2015Publication date: January 12, 2017Applicant: NEC CorporationInventor: Yoshiyuki YAMADA
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Publication number: 20160337737Abstract: Provided is a sound-transmitting waterproof film having waterproof performance and stable sound-transmitting performance in a wide tonal range. The sound-transmitting waterproof film includes a porous film of a synthetic resin, and has a water pressure resistance of 10 to 400 kPa in accordance with a JIS L 1092 method B (a high water pressure method) and has an acoustic loss of less than 10 dB at a frequency of 1 kHz, an acoustic loss of less than 5 dB at a frequency of 2 kHz, and an acoustic loss of less than 5 dB at a frequency of 5 kHz in sound-transmitting performance tests.Type: ApplicationFiled: January 8, 2015Publication date: November 17, 2016Inventors: Yoshiharu KATO, Katsumi SAKAMOTO, Yoshiyuki YAMADA, Naoya KISHIMOTO
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Patent number: 9461919Abstract: A switch is provided between a first network and a second network and an offloading determination unit determines whether or not to offload traffic for the first network, and configures an offload path to bypass the first network for the switch when the offloading is performed. When the traffic is offloaded, the switch forwards a packet to be offloaded to the offload path.Type: GrantFiled: November 15, 2013Date of Patent: October 4, 2016Assignee: NEC CorporationInventors: Yasuhiro Mizukoshi, Makoto Fujinami, Yoshiyuki Yamada
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Publication number: 20160255539Abstract: A communication system, a communication apparatus and a communication control method are provided that make it possible to easily introduce a traffic offload function. A communication system including: a base station (10) wirelessly connecting to terminals (20); and a network (40) is provided with an address translation table (101) for offloading a traffic from a terminal to the network, and a source translation section (102) for translating a source port in the address translation table, per radio bearer (RB) that is set up between a traffic source terminal and the base station.Type: ApplicationFiled: October 7, 2014Publication date: September 1, 2016Applicant: NEC CorporationInventors: Yasuhiro MIZUKOSHI, Makoto FUJINAMI, Yoshiyuki YAMADA
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Patent number: 9267614Abstract: An external seal structure in a vacuum valve in which an upper end plate of a partition wall member is held between a valve body and a cylinder cover. An annular seal member for main fluid is placed between the upper end plate and the valve body to prevent material gas from leaking to atmosphere through an abutting section defined by the valve body and the cylinder cover connected in abutting manner. The main-fluid annular seal member is made of perfluoroelastomer. A fluorinated annular seal member made of fluorinated resin is placed between the upper end plate and the valve body and between the main-fluid annular seal member and the abutting section. A leak port communicated with outside air is provided in the valve body to communicate with between a seal point of the main-fluid annular seal member and a seal point of the fluorinated annular seal member.Type: GrantFiled: July 14, 2014Date of Patent: February 23, 2016Assignee: CKD CORPORATIONInventors: Yoshiyuki Yamada, Shunsuke Umezawa
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Publication number: 20160013995Abstract: An index calculation unit calculates a periodicity determination index for determining the presence of periodicity on the basis of the differential between each segment of the frequency distribution of input numerical data and a frequency distribution in accordance with a baseline distribution provided ahead of time. A determination unit uses the periodicity determination index calculated by the index calculation unit to determine the presence of periodicity including one or more periodic components present in the numerical data.Type: ApplicationFiled: January 8, 2014Publication date: January 14, 2016Applicant: NEC CorporationInventors: Yoshiyuki Yamada, Makoto Fujinami, Yasuhiro Miyao
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Publication number: 20150295833Abstract: A switch is provided between a first network and a second network and an offloading determination unit determines whether or not to offload traffic for the first network, and configures an offload path to bypass the first network for the switch when the offloading is performed. When the traffic is offloaded, the switch forwards a packet to be offloaded to the offload path.Type: ApplicationFiled: November 15, 2013Publication date: October 15, 2015Applicant: NEC CorporationInventors: Yasuhiro Mizukoshi, Makoto Fujinami, Yoshiyuki Yamada
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Publication number: 20150280926Abstract: A charging control method and system are provided that can reduce the processing load on a function of performing charging control. The charging control system includes a policy and charging rules function (PCRF), a plurality of gateways (P-GWs) each including a policy and charging enforcement function (PCEF), and a relay section including a relay server and a switch that connects the PCRF and the plurality of PCEFs in a hierarchical manner. The PCRF is directly connected to the relay section, whereby the number of sessions is reduced.Type: ApplicationFiled: September 20, 2013Publication date: October 1, 2015Inventors: Yoshiyuki Yamada, Makoto Fujinami, Ippei Akiyoshi, Yasuhiro Mizukoshi
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Publication number: 20150201364Abstract: A communication control method and a communication system are provided that realize traffic offload while reducing the processing load on a base station. A base station in a mobile network includes a gateway (PO-GW) for connecting a mobile terminal (UE) in the mobile network to a packet data network (PDN), and a control function (MME, DNS, HSS) of the mobile network allows the mobile terminal to access the gateway (PO-GW), in response to a request from the mobile terminal to connect to the PDN via the base station.Type: ApplicationFiled: September 20, 2013Publication date: July 16, 2015Inventors: Yoshiyuki Yamada, Makoto Fujinami, Ippei Akiyoshi, Yasuhiro Mizukoshi
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Patent number: 9041804Abstract: An input device, wherein the screen (18a) of a display device (18) is divided into two regions, a region (A1) and a region (A2), and the icon switch displayed in the region including the position of an invisible pointer (P?) is selected. Thus, one of an icon switch (1) and an icon switch (2) that are displayed on the screen (18a) is selected at any time. Consequently, the user will no longer have to watch the screen carefully and perform an operation for moving an instruction marker such as a visible pointer to a desired icon switch, for example as in conventional devices. Accordingly, the user can enter a desired instruction in a short time by selecting a desired icon switch in a short time.Type: GrantFiled: November 20, 2009Date of Patent: May 26, 2015Assignees: AISIN SEIKI KABUSHIKI KAISHA, TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Taketoshi Fujii, Haruka Iga, Yoji Inui, Atsuo Fukaya, Keiichi Nakamura, Yoshiyuki Yamada
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Publication number: 20150028245Abstract: An external seal structure in a vacuum valve in which an upper end plate of a partition wall member is held between a valve body and a cylinder cover. An annular seal member for main fluid is placed between the upper end plate and the valve body to prevent material gas from leaking to atmosphere through an abutting section defined by the valve body and the cylinder cover connected in abutting manner. The main-fluid annular seal member is made of perfluoroelastomer. A fluorinated annular seal member made of fluorinated resin is placed between the upper end plate and the valve body and between the main-fluid annular seal member and the abutting section. A leak port communicated with outside air is provided in the valve body to communicate with between a seal point of the main-fluid annular seal member and a seal point of the fluorinated annular seal member.Type: ApplicationFiled: July 14, 2014Publication date: January 29, 2015Inventors: Yoshiyuki YAMADA, Shunsuke UMEZAWA
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Patent number: 8794261Abstract: A fluid control system includes a vacuum chamber, a gas supply source to supply gas as a fluid, an exhaust pipe to discharge the fluid from the vacuum chamber, a gas supply pipe to connect the vacuum chamber to the gas supply source, and a pressure sensor to detect an internal pressure of the vacuum chamber. This system further includes a flowmeter placed between the gas supply source and the vacuum chamber, a proportional valve placed between the flowmeter and the vacuum chamber, a pressure controller to control the proportional valve based on output of the pressure sensor, a metering valve placed on the exhaust pipe, and a flow controller to control the metering valve based on an output of the flowmeter.Type: GrantFiled: February 4, 2013Date of Patent: August 5, 2014Assignee: CKD CorporationInventors: Masayuki Watanabe, Yoshiyuki Yamada, Shunsuke Umezawa
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Patent number: 8707873Abstract: A bodyshell of a railcar includes side outside plates and end bodyshells. The side outside plates are respectively provided at both end portions of an underframe in a vehicle width direction. The end bodyshell includes end outside plates and corner posts. The end outside plates are respectively provided at front and rear end portions of the underframe. The corner posts are respectively provided at four corners of the underframe and are joined to the end outside plates and the side outside plates. Moreover, the corner post includes a side plate joining portion. The side plate joining portion overlaps a front end portion of the side outside plates from an outer side in the vehicle width direction and is joined to the side outside plate.Type: GrantFiled: March 25, 2010Date of Patent: April 29, 2014Assignees: West Japan Railway Company, Kawasaki Jukogyo Kabushiki KaishaInventors: Masayasu Matsuoka, Hiroyuki Kido, Taro Hayashi, Makoto Taguchi, Toshiyuki Yamada, Naoaki Kawakami, Yasufumi Minamimoto, Taro Oka, Yoshiyuki Yamada
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Patent number: 8674590Abstract: A vibrating piece substrate includes: a plurality of tuning-fork vibrating pieces each having a base portion, and vibration arm portions and support arm portions extending from the base portion; a frame portion; and a plurality of linking portions connecting the frame portion and the plurality of tuning-fork vibrating pieces, wherein the support arm portions extend in the same direction as the direction in which the vibration arm portions extend, and the support arm portions have a length smaller than the vibration arm portions, the tuning-fork vibrating pieces are arranged such that the vibration arm portions of adjacent tuning-fork vibrating pieces sandwich the region of a portion of the frame portion therebetween, measurement pads are formed in the region of the frame portion sandwiched between the vibration arm portions, and wiring lines are formed in the linking portions to provide electric conduction between the tuning-fork vibrating pieces and the measurement pads.Type: GrantFiled: January 12, 2011Date of Patent: March 18, 2014Assignee: Seiko Epson CorporationInventor: Yoshiyuki Yamada
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Patent number: 8665032Abstract: A flexural mode resonator element includes: a vibration arm extending from a base end toward a tip; a base joined to the vibration arm at the base end; and supporting arms arranged on both sides of the base in a width direction perpendicular to an extending direction of the vibration arm and joined to the base, wherein the base has a reduced cross-section portion disposed along the extending direction of the vibration arm between a joint portion with the vibration arm and a joint portion with the supporting arms, and the reduced cross-section portion is disposed so as to satisfy a relationship 2×W1?L?6×W1 where L is the length of the reduced cross-section portion in the extending direction of the vibration arm, and W1 is the arm width of the vibration arm.Type: GrantFiled: September 20, 2012Date of Patent: March 4, 2014Assignee: Seiko Epson CorporationInventors: Hideo Tanaya, Yoshiyuki Yamada
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Patent number: 8633788Abstract: A piezoelectric vibration piece includes a base made of a piezoelectric material; a plurality of vibration arms which is integrally formed with the base and extends in parallel; elongate grooves which are formed along longitudinal directions of the vibration arms; and excitation electrodes which include inner electrodes disposed in the elongate grooves and side electrodes disposed in side surfaces facing the inner electrodes, wherein widening portions in which the widths of the vibration arms are widened toward the base at a joint between the vibration arms of the base are formed, and the side electrodes are led to principal surfaces and side surfaces of the widening portions.Type: GrantFiled: February 26, 2013Date of Patent: January 21, 2014Assignee: Seiko Epson CorporationInventor: Yoshiyuki Yamada
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Publication number: 20140014123Abstract: A reconstituted tobacco material is manufactured by extracting a natural tobacco material with an extracting solvent to obtain an extraction residue and a tobacco extracted liquid containing desired components and undesired components including tobacco-specific nitrosamines, subjecting the tobacco extracted liquid to a fractionating treatment by means of a reverse osmosis membrane to obtain a membrane impermeable fraction containing the desired components and depleted in the undesired components and a membrane permeable fraction depleted in the desired components and enriched in the undesired components, controlling the tobacco extracted liquid during the fractionating treatment to have a temperature suitable for the fractionating treatment, removing precipitates, which are precipitated in the tobacco extracted liquid during the fractionating treatment, from the tobacco extracted liquid, preparing a reconstituted tobacco web containing the extraction residue, and adding the membrane impermeable fraction to thType: ApplicationFiled: September 12, 2013Publication date: January 16, 2014Applicant: JAPAN TOBACCO INC.Inventors: Tsuyoshi FUTAMURA, Norio KAWATA, Yoshiyuki YAMADA
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Publication number: 20130255793Abstract: A fluid control system includes a vacuum chamber, a gas supply source to supply gas as a fluid, an exhaust pipe to discharge the fluid from the vacuum chamber, a gas supply pipe to connect the vacuum chamber to the gas supply source, and a pressure sensor to detect an internal pressure of the vacuum chamber. This system further includes a flowmeter placed between the gas supply source and the vacuum chamber, a proportional valve placed between the flowmeter and the vacuum chamber, a pressure controller to control the proportional valve based on output of the pressure sensor, a metering valve placed on the exhaust pipe, and a flow controller to control the metering valve based on an output of the flowmeter.Type: ApplicationFiled: February 4, 2013Publication date: October 3, 2013Applicant: CKD CORPORATIONInventors: Masayuki WATANABE, Yoshiyuki YAMADA, Shunsuke UMEZAWA
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Patent number: 8405474Abstract: A piezoelectric vibration piece includes a base made of a piezoelectric material; a plurality of vibration arms which is integrally formed with the base and extends in parallel; elongate grooves which are formed along longitudinal directions of the vibration arms; and excitation electrodes which include inner electrodes disposed in the elongate grooves and side electrodes disposed in side surfaces facing the inner electrodes, wherein widening portions in which the widths of the vibration arms are widened toward the base at a joint between the vibration arms of the base are formed, and the side electrodes are led to principal surfaces and side surfaces of the widening portions.Type: GrantFiled: July 7, 2011Date of Patent: March 26, 2013Assignee: Seiko Epson CorporationInventor: Yoshiyuki Yamada
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Publication number: 20120322328Abstract: Disclosed is a moisture-permeable waterproof fabric which is produced by using a plant-based material and has equivalent or superior performance as compared to conventional petroleum-based polyurethane resins. The moisture-permeable waterproof fabric comprises, on at least one surface thereof, a porous resin film composed of a polyurethane resin containing 5 to 80% by weight of a sebacic acid-based polyol component produced from a plant-based sebacic acid, and has an A-1 moisture permeability and a B-1 moisture permeably both of which are not less than 5,000 g/m2·24 h and a water pressure resistance of not lower than 5,000 mmH2O.Type: ApplicationFiled: February 22, 2011Publication date: December 20, 2012Applicant: SEIREN CO., LTD.Inventors: Yoshiyuki Yamada, Katsumi Sakamoto, Yoshiharu Kato