Patents by Inventor Takeshi Kuwahara
Takeshi Kuwahara 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).
-
Publication number: 20210288996Abstract: A DDoS attack handling technology is provided in which even when a plurality of IP addresses are attacked at the same time, resource load distribution between sites can be achieved while an increase in delay of target-addressed communications due to the handling of DDoS attacks is prevented. A DDoS handling apparatus 100 includes a load distribution determination unit 112 that determines whether load distribution processing is necessary, a processability determination unit 113 that determines whether load distribution processing is capable of being performed within a desired time, a grouping processing unit 115 that groups target-addressed communications into a plurality of groups, a load distribution processing unit 116 that determines, for each group, a mitigation site to be used to handle the target-addressed communications from among a plurality of mitigation sites, and an attack handling setting unit 117 that performs route control of the target-addressed communications.Type: ApplicationFiled: July 12, 2019Publication date: September 16, 2021Inventors: Hiroaki MAEDA, Hisashi KOJIMA, Takeshi KUWAHARA
-
Publication number: 20210280553Abstract: There is provided a palladium-coated copper bonding wire that does not cause a shrinkage cavity during first bonding, has high bonding reliability, and is capable of maintaining excellent bonding reliability for a long period of time even in high-temperature and high-humidity environments. A palladium-coated copper bonding wire in which a concentration of palladium is 1.0 mass % or more and 4.0 mass % or less relative to the total of copper, palladium, and a sulfur group element, a total concentration of the sulfur group element is 50 mass ppm or less, and a concentration of sulfur is 5 mass ppm or more and 12 mass ppm or less, a concentration of selenium is 5 mass ppm or more and 20 mass ppm or less, or a concentration of tellurium is 15 mass ppm or more and 50 mass ppm or less, and the palladium-coated copper bonding wire including a palladium-concentrated region with the average concentration of palladium of 6.5 atom % or more and 30.Type: ApplicationFiled: May 24, 2021Publication date: September 9, 2021Inventors: Hiroyuki AMANO, Yuki ANTOKU, Takeshi KUWAHARA
-
Publication number: 20210258260Abstract: Provided is a remote control system and a method enabling packets, related to a control signal and simultaneously transmitted from a controller to a plurality of controlled devices, to be received by the controlled devices without a difference in delay. Edge nodes 30 that are packet transfer devices are provided on communication paths between a controller 10 provided on a network and a plurality of controlled devices 20 provided in a location. The edge nodes 30 each include a transfer processing unit 31 that transfers the packets from the controller 10 to the controlled devices 20, and a timing control unit 32 that controls transmission timing of the packets in the transfer processing unit 31 to reduce a difference in arrival time of a plurality of packets simultaneously transmitted from the controller 10 to the plurality of controlled devices 20, at the plurality of controlled devices 20.Type: ApplicationFiled: August 23, 2019Publication date: August 19, 2021Inventors: Yuki Nakahara, Ryota Ishibashi, Takeshi Kuwahara
-
Publication number: 20210234871Abstract: Provided is an infection-spreading attack detection system and method, as well as a program enabling an occurrence of an infection-spreading attack to be detected with high accuracy. A first feature amount is calculated based on traffic information on a packet transferred by a transfer device, and M partial address space(s) are identified to be a monitoring target based on the first feature amount. A second feature amount is calculated for each of the M partial address space(s) based on the traffic information related to the M partial address space(s). Abnormality detection determination is performed on each of the M partial address space(s) based on the second feature amount. Whether the infection-spreading attack has occurred is determined by evaluating M determination results.Type: ApplicationFiled: June 3, 2019Publication date: July 29, 2021Inventors: Yukihiro TOGARI, Hiroaki MAEDA, Hisashi KOJIMA, Takeshi KUWAHARA
-
Patent number: 10876616Abstract: In a power transmission device for a vehicle, comprising: a transaxle casing in which a motor and a voltage power line are housed; and a cover attached so as to close an opening of the transaxle casing, the cover includes a flange portion provided at an outer edge portion of the cover and connected to the opening of the transaxle casing, a bearing support portion for a bearing that supports a rotary shaft rotatably, and a cover wall provided between the flange portion and the bearing support portion, and a valve body is attached to the cover wall so as to be positioned at a portion of the cover wall at which a direct distance between the bearing support portion and the flange portion surrounding the bearing support portion is longest.Type: GrantFiled: February 22, 2019Date of Patent: December 29, 2020Assignees: Toyota Jidosha Kabushiki Kaisha, Aisin AW Co., Ltd.Inventors: Masataka Sugiyama, Kenji Tanabe, Takeshi Kuwahara, Tomohisa Taga, Akihiko Ikeda, Fumiaki Shigematsu, Atomi Arakawa, Masamitsu Seno
-
Publication number: 20200358720Abstract: A packet processing system and method for enabling real-time packet processing while preventing an unnecessary delay increase are provided. A terminal 10-1 and a terminal 10-2 that transmit different types of packets in real time, a communication device 30 that processes packets transmitted by the terminal 10-1, and a packet processing device 100 disposed in a communication path of the packet from the terminal 10-1 and the terminal 10-2 to the communication device. The packet processing device 100 determines a processing method for the packets received from the terminal 10-1 based on the packets received from the terminal 10-2, creates a processing method determination table, and creates a processing method list. The terminal information packet processing unit 124 processes the packets received from the terminal 10-1 per packet unit based on the processing method list.Type: ApplicationFiled: February 7, 2019Publication date: November 12, 2020Inventors: Kotaro Ono, Ryota Ishibashi, Takeshi Kuwahara
-
Publication number: 20200339077Abstract: A vehicle including: (i) a drive-force transmission unit including a casing and installed in a offset position that is offset from a widthwise center of the vehicle in an offset direction; (ii) a component protruding away from the casing toward a front side of the vehicle, and including first and second region portions such that the first region portion is located on a front side of the second region portion in the offset direction; and (iii) an attachment member through which the component is attached to a vehicle-front side portion of the casing. The attachment member is provided with a displacement adjustment portion that is configured, upon application of an external force to the component from the front side of the vehicle, to facilitate the first region portion of the component to be displaced toward a rear side of the vehicle, more than the second region portion of the component.Type: ApplicationFiled: April 26, 2020Publication date: October 29, 2020Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Mizuki BINGO, Takeshi KUWAHARA, Kazuki IWAKURA
-
Patent number: 10816093Abstract: A parking lock mechanism comprises: a parking gear disposed on a power transmission member mechanically coupled to a drive wheel; and a parking pawl provided with a lock claw configured to mesh with the parking gear and switching between a lock state in which the lock claw is meshed with the parking gear and an unlock state in which meshing between the lock claw and the parking gear is released. In the mechanism, the lock claw includes a first end surface and a second end surface opposite to each other in a face width direction, the lock claw includes a tooth tip surface provided with a retreated portion at a corner on the second end surface side, and a position of a center of gravity of the parking pawl is on the second end surface side relative to a center plane in the face width direction of the lock claw.Type: GrantFiled: February 28, 2019Date of Patent: October 27, 2020Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Masataka Sugiyama, Kenji Tanabe, Takeshi Kuwahara, Ryoki Ii, Kenji Asai
-
Patent number: 10625591Abstract: An electric vehicle comprises: an electric drive unit including an electric motor used as a drive power source, a transaxle including a differential device and coupled to a motor shaft of the electric motor in a power transmittable manner on one end side of the electric motor in a direction of a motor centerline to transmit an output of the electric motor through the differential device to a pair of drive shafts, and a case housing the electric motor and the transaxle. The case includes a first end surface portion located on the other end side of the electric motor in the motor centerline direction and rotatably supporting the motor shaft, and an accessory component of the vehicle is attached to an outside surface of the first end surface portion.Type: GrantFiled: September 20, 2018Date of Patent: April 21, 2020Assignee: Toyota Jidosha Kabushiki KaishaInventors: Yukinobu Nishikawa, Takeshi Kuwahara, Eiji Ito, Yasuki Yoshikawa
-
Publication number: 20190264808Abstract: A parking lock mechanism comprises: a parking gear disposed on a power transmission member mechanically coupled to a drive wheel; and a parking pawl provided with a lock claw configured to mesh with the parking gear and switching between a lock state in which the lock claw is meshed with the parking gear and an unlock state in which meshing between the lock claw and the parking gear is released. In the mechanism, the lock claw includes a first end surface and a second end surface opposite to each other in a face width direction, the lock claw includes a tooth tip surface provided with a retreated portion at a corner on the second end surface side, and a position of a center of gravity of the parking pawl is on the second end surface side relative to a center plane in the face width direction of the lock claw.Type: ApplicationFiled: February 28, 2019Publication date: August 29, 2019Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Masataka SUGIYAMA, Kenji TANABE, Takeshi KUWAHARA, Ryoki II, Kenji ASAI
-
Publication number: 20190264797Abstract: In a power transmission device for a vehicle, comprising: a transaxle casing in which a motor and a voltage power line are housed; and a cover attached so as to close an opening of the transaxle casing, the cover includes a flange portion provided at an outer edge portion of the cover and connected to the opening of the transaxle casing, a bearing support portion for a bearing that supports a rotary shaft rotatably, and a cover wall provided between the flange portion and the bearing support portion, and a valve body is attached to the cover wall so as to be positioned at a portion of the cover wall at which a direct distance between the bearing support portion and the flange portion surrounding the bearing support portion is longest.Type: ApplicationFiled: February 22, 2019Publication date: August 29, 2019Applicants: Toyota Jidosha Kabushiki Kaisha, Aisin AW Co., Ltd.Inventors: Masataka SUGIYAMA, Kenji TANABE, Takeshi KUWAHARA, Tomohisa TAGA, Akihiko IKEDA, Fumiaki SHIGEMATSU, Atomi ARAKAWA, Masamitsu SENO
-
Publication number: 20190084403Abstract: An electric vehicle comprises: an electric drive unit including an electric motor used as a drive power source, a transaxle including a differential device and coupled to a motor shaft of the electric motor in a power transmittable manner on one end side of the electric motor in a direction of a motor centerline to transmit an output of the electric motor through the differential device to a pair of drive shafts, and a case housing the electric motor and the transaxle. The case includes a first end surface portion located on the other end side of the electric motor in the motor centerline direction and rotatably supporting the motor shaft, and an accessory component of the vehicle is attached to an outside surface of the first end surface portion.Type: ApplicationFiled: September 20, 2018Publication date: March 21, 2019Applicant: Toyota Jidosha Kabushiki KaishaInventors: Yukinobu Nishikawa, Takeshi Kuwahara, Eiji Ito, Yasuki Yoshikawa
-
Patent number: 10094377Abstract: An oil pump for a vehicle includes a driven gear, a drive gear, a pump body, and a plate. The drive gear engages the driven gear. The pump body is secured to a rear cover of a transaxle case. The plate is interposed between the rear cover and the pump body. A pump chamber is formed between the rear cover and the pump body. The driven gear and the drive gear are housed in the pump chamber. The pump chamber is formed: between the plate and the pump body, or between the plate and the rear cover.Type: GrantFiled: November 29, 2012Date of Patent: October 9, 2018Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, AISIN AW CO., LTD.Inventors: Tatsuo Obata, Hiromichi Kimura, Takeshi Kuwahara, Katsuhide Kitagawa, Kunio Morisawa, Masamitsu Seno, Hirotaka Yata, Tomoo Atarashi
-
Patent number: 10069642Abstract: A method and apparatus for selecting a client computer as a relay server to rebroadcast common application information that is broadcast from a server system over a network. The client computer is selected randomly to rebroadcast the User Datagram Protocol (UDP) information received from the server system and client computers receiving the UDP information from another client computer relay server on the network do not rebroadcast the information. If the client computer selected to rebroadcast the common information fails to rebroadcast, another client computer is randomly selected as a relay server and takes over rebroadcasting the common information.Type: GrantFiled: March 3, 2017Date of Patent: September 4, 2018Assignee: International Business Machines CorporationInventors: Kenji Kobayashi, Takeshi Kuwahara
-
Patent number: 9991760Abstract: A vehicular drive system is provided with at least one electric motor and a helical gear portion which are accommodated within a casing formed by a plurality of casing members fixed to each other, wherein: said casing includes a first casing member to which a stator of each of said at least one electric motor is fixed, and a second casing member which is fixed to said first casing member so as to cooperate with said first casing member to form a space accommodating said at least one electric motor and which has a support portion supporting said helical gear portion; and a rotor of said each electric motor is rotatably supported at opposite ends thereof by said first casing member and said second casing member, respectively, while said helical gear portion is rotatably supported by said second casing member through said support portion.Type: GrantFiled: July 19, 2011Date of Patent: June 5, 2018Assignee: Toyota Jidosha Kabushiki KaishaInventors: Tatsuo Obata, Kunio Morisawa, Tsuyoshi Kitahata, Takeshi Kuwahara, Hiromichi Kimura, Masahiro Tanae, Toru Saitou
-
Patent number: 9729676Abstract: A method and apparatus for selecting a client computer as a relay server to rebroadcast common application information that is broadcast from a server system over a network. The client computer is selected randomly to rebroadcast the User Datagram Protocol (UDP) information received from the server system and client computers receiving the UDP information from another client computer relay server on the network do not rebroadcast the information. If the client computer selected to rebroadcast the common information fails to rebroadcast, another client computer is randomly selected as a relay server and takes over rebroadcasting the common information.Type: GrantFiled: November 26, 2014Date of Patent: August 8, 2017Assignee: International Business Machines CorporationInventors: Kenji Kobayashi, Takeshi Kuwahara
-
Publication number: 20170180144Abstract: A method and apparatus for selecting a client computer as a relay server to rebroadcast common application information that is broadcast from a server system over a network. The client computer is selected randomly to rebroadcast the User Datagram Protocol (UDP) information received from the server system and client computers receiving the UDP information from another client computer relay server on the network do not rebroadcast the information. If the client computer selected to rebroadcast the common information fails to rebroadcast, another client computer is randomly selected as a relay server and takes over rebroadcasting the common information.Type: ApplicationFiled: March 3, 2017Publication date: June 22, 2017Inventors: Kenji Kobayashi, Takeshi Kuwahara
-
Patent number: 9528404Abstract: A power transmission device has a first check valve and a second check valve on the respective discharge passages. An oil temperature sensor is disposed at a position that is vertically lower than an oil-introducing portion of a merging section.Type: GrantFiled: December 4, 2013Date of Patent: December 27, 2016Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Hiroaki Kimura, Akiko Nishimine, Takeshi Kuwahara, Ryota Takayanagi
-
Patent number: 9505444Abstract: A vehicle front structure includes: a power unit provided on a front part of a vehicle; a front side member which is arranged outside the power unit in a vehicle width direction and which extends in a vehicle longitudinal direction; and a load receiving portion which is provided on a side portion on a front side member side of the power unit and which is located inside the front side member in a vehicle width direction while stiffness thereof in the vehicle width direction is higher than other location of the side portion.Type: GrantFiled: September 2, 2014Date of Patent: November 29, 2016Assignee: Toyota Jidosha Kabushiki KaishaInventors: Michitaka Tsuchida, Shunsuke Hayashi, Tatsuo Obata, Kazuaki Ishiura, Takeshi Kuwahara
-
Publication number: 20160050080Abstract: A method and apparatus for selecting a client computer as a relay server to rebroadcast common application information that is broadcast from a server system over a network. The client computer is selected randomly to rebroadcast the User Datagram Protocol (UDP) information received from the server system and client computers receiving the UDP information from another client computer relay server on the network do not rebroadcast the information. If the client computer selected to rebroadcast the common information fails to rebroadcast, another client computer is randomly selected as a relay server and takes over rebroadcasting the common information.Type: ApplicationFiled: August 12, 2014Publication date: February 18, 2016Inventors: Kenji Kobayashi, Takeshi Kuwahara