Patents by Inventor Takashi Koshimizu

Takashi Koshimizu 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).

  • Patent number: 11723117
    Abstract: An MS 300 controls a mobility level (IMM) of user device in an idle mode depending on a movement; state of the user device. The ME 300 includes a movement state acquisition section 320 that acquires the movement state of the user device, a mobility level selector 330 chat selects a mobility level out of the multiple mobility levels based on the movement state of the user device acquired by the movement state acquisition section 320, and a mobility level notification section 340 that notifies the user device of the mobility level selected by the mobility level selector 330.
    Type: Grant
    Filed: May 11, 2017
    Date of Patent: August 8, 2023
    Assignee: NTT DOCOMO, INC.
    Inventors: Takashi Koshimizu, Irfan Ali, Syed Husain
  • Patent number: 11445420
    Abstract: UE (50) includes a mapping information retaining unit (57) that retains association information in which a type of EPS bearer configured in 4G and a type of QoS flow that corresponds to the service quality and is configured in 5G are associated, and a handover executing unit (59) that acquires, by using the association information, association between the EPS bearer configured by the UE (50) and the QoS flow configured by the UE (50), and executes handover between the EPS bearer and the QoS flow associated with each other.
    Type: Grant
    Filed: May 2, 2018
    Date of Patent: September 13, 2022
    Assignee: NTT DOCOMO, INC.
    Inventors: Takashi Koshimizu, Riccardo Guerzoni, Jari Mutikainen, Irfan Ali
  • Patent number: 11323976
    Abstract: A radio communication method according to the present invention supports Dual registration in which the same UE (50) is simultaneously registered on 4G and 5G. The radio communication method includes the UE (50) requesting connection to EPC and transmitting, to the 4G, Attach Request that includes Dual registration indication that indicates that the UE (50) has been dually registered, and MME (100) that constitutes the 4G notifying, after the Attach Request has been acquired, HSS (110) of the Dual registration indication that indicates that the UE (50) has been dually registered.
    Type: Grant
    Filed: May 8, 2018
    Date of Patent: May 3, 2022
    Assignee: NTT DOCOMO, INC.
    Inventors: Takashi Koshimizu, Irfan Ali, Riccardo Guerzoni, Jari Mutikainen
  • Publication number: 20220112928
    Abstract: Provided is a drive device for an electric servo press machine, the drive device including: left and right drive shafts rotationally driven by left and right electric servo motors; main pinion gears provided to the left and right drive shafts; main gears meshed with the main pinion gears; connecting rods connected to the main gears; and a slide supported thereby. Further, idle gears can be provided between the main gears.
    Type: Application
    Filed: October 5, 2021
    Publication date: April 14, 2022
    Inventors: Takashi Koshimizu, Kazuhiko IWAMOTO, Kenji IMAI
  • Patent number: 11304112
    Abstract: Provided are an anchor point control device and an anchor point control method that make it possible to select a more suitable anchor point when dynamically changing an anchor point (route switching point). An ME (300) acquires user information indicating at least either an attribute or a state of UE (100), and selects an anchor point out of an anchor point AL and an anchor point AC based on the acquired user information. In addition, the ME (300) notifies the UE 100 of the selected anchor point.
    Type: Grant
    Filed: May 11, 2017
    Date of Patent: April 12, 2022
    Assignee: NTT DOCOMO, INC.
    Inventors: Takashi Koshimizu, Irfan Ali, Syed Husain
  • Patent number: 11034116
    Abstract: A servo press machine includes an eccentric shaft, a connecting rod, a slide, an eccentric shaft-side sliding surface, a connecting rod-side sliding surface, an oil supply port, and a supply mechanism. The oil supply port opens on the eccentric shaft-side sliding surface or the connecting rod-side sliding surface, and supplies a lubricant between the eccentric shaft-side sliding surface and the connecting rod-side sliding surface. The supply mechanism supplies the lubricant to the oil supply port. The eccentric shaft-side sliding surface is formed on the eccentric shaft that is rotationally driven by a servomotor. The oil supply port is formed on the connecting rod-side sliding surface of the connecting rod that moves upward and downward due to the rotational driving of the eccentric shaft.
    Type: Grant
    Filed: August 2, 2018
    Date of Patent: June 15, 2021
    Assignee: AIDA ENGINEERING, LTD.
    Inventor: Takashi Koshimizu
  • Patent number: 10912141
    Abstract: According to one embodiment, a method for establishing a communication is described comprising performing, over a first mobile radio communication network, a call control protocol message exchange indicating that a communication session establishment between a first communication device and a second communication device is intended; initiating a fallback by the first communication device from the first mobile radio communication network to a second mobile radio communication network, in reaction to a specific call control message of the call control protocol message exchange; performing the fallback and establishing the communication session between the first communication device and the second communication device via the second mobile radio communication network.
    Type: Grant
    Filed: September 13, 2017
    Date of Patent: February 2, 2021
    Assignee: NTT DOCOMO, INC.
    Inventors: Riccardo Guerzoni, Jari Mutikainen, Takashi Koshimizu, Irfan Ali
  • Publication number: 20200275497
    Abstract: A base station used in a communication system comprising a core network, and a first and second base stations both of which are connected to the core network, wherein the base station being used as the first base station, the base station comprising: a network communication unit that receives a bearer setting request from the core network; and a bearer control unit that determines, when performing bearer setting based on the bearer setting request, whether or not a predetermined condition is met, and, when the predetermined condition is met, decides not to set a bearer that connects the second base station and the core network to each other or to restrain from setting the bearer.
    Type: Application
    Filed: October 9, 2018
    Publication date: August 27, 2020
    Applicant: NTT DOCOMO, INC.
    Inventors: Kenichirou Aoyagi, Takashi Koshimizu, Hiroshi Ishikawa, Keiichi Kanbara, Na Yo
  • Publication number: 20200154388
    Abstract: A radio communication method according to the present invention supports Dual registration in which the same UE (50) is simultaneously registered on 4G and 5G. The radio communication method includes the UE (50) requesting connection to EPC and transmitting, to the 4G, Attach Request that includes Dual registration indication that indicates that the UE (50) has been dually registered, and MME (100) that constitutes the 4G notifying, after the Attach Request has been acquired, HSS (110) of the Dual registration indication that indicates that the UE (50) has been dually registered.
    Type: Application
    Filed: May 8, 2018
    Publication date: May 14, 2020
    Applicant: NTT DOCOMO, INC.
    Inventors: Takashi Koshimizu, Irfan Ali, Riccardo Guerzoni, Jari Mutikainen
  • Patent number: 10645736
    Abstract: A radio communication system includes user equipment; a call control device; a subscriber management device; and a connection device that connects an application server, wherein the subscriber management device includes a subscriber information storage unit that stores subscriber information that associates a first identifier for identifying the user equipment in the radio communication system with a second identifier for identifying the user equipment in the application server, wherein the call control device includes a first context storage unit and a first communication processing unit that transmits the first identifier, the second identifier, and a call control device identifier to the connection device, and wherein the connection device includes a second context storage unit and a second communication processing unit that reports, to the application server, that the second identifier is activated.
    Type: Grant
    Filed: May 10, 2017
    Date of Patent: May 5, 2020
    Assignee: NTT DOCOMO, INC.
    Inventors: Takashi Koshimizu, Syed Husain, Malla Reddy Sama
  • Publication number: 20200112894
    Abstract: UE (50) includes a mapping information holding unit (56) that holds association information in which are associated with each other a type of an EPS bearer set in 4G and a type of a QoS flow set in 5G and that depends on a quality of service, a filter holding unit (57) that holds a filter of a traffic flow associated with the EPS bearer set for the UE 50 in the 4G, and a QoS rule generating unit (58) that generates, based on EPS Bearer ID for recognizing the type of the EPS bearer and the filter held by the filter holding unit (57), 5G QoS Rule associated with the QoS flow.
    Type: Application
    Filed: June 15, 2018
    Publication date: April 9, 2020
    Applicant: NTT DOCOMO, INC.
    Inventors: Takashi Koshimizu, Jari Mutikainen, Riccardo Guerzoni, Irfan Ali
  • Publication number: 20200092780
    Abstract: UE (50) includes a mapping information retaining unit (57) that retains association information in which a type of EPS bearer configured in 4G and a type of QoS flow that corresponds to the service quality and is configured in 5G are associated, and a handover executing unit (59) that acquires, by using the association information, association between the EPS bearer configured by the UE (50) and the QoS flow configured by the UE (50), and executes handover between the EPS bearer and the QoS flow associated with each other.
    Type: Application
    Filed: May 2, 2018
    Publication date: March 19, 2020
    Applicant: NTT DOCOMO, INC.
    Inventors: Takashi Koshimizu, Riccardo Guerzoni, Jari Mutikainen, Irfan Ali
  • Publication number: 20190239271
    Abstract: According to one embodiment, a method for establishing a communication is described comprising performing, over a first mobile radio communication network, a call control protocol message exchange indicating that a communication session establishment between a first communication device and a second communication device is intended; initiating a fallback by the first communication device from the first mobile radio communication network to a second mobile radio communication network, in reaction to a specific call control message of the call control protocol message exchange; performing the fallback and establishing the communication session between the first communication device and the second communication device via the second mobile radio communication network.
    Type: Application
    Filed: September 13, 2017
    Publication date: August 1, 2019
    Applicant: NTT DOCOMO, INC.
    Inventors: Riccardo GUERZONI, Jari ALI, Takashi KOSHIMIZU, Irfan ALI
  • Publication number: 20190166633
    Abstract: A radio communication system includes user equipment; a call control device; a subscriber management device; and a connection device that connects an application server, wherein the subscriber management device includes a subscriber information storage unit that stores subscriber information that associates a first identifier for identifying the user equipment in the radio communication system with a second identifier for identifying the user equipment in the application server, wherein the call control device includes a first context storage unit and a first communication processing unit that transmits the first identifier, the second identifier, and a call control device identifier to the connection device, and wherein the connection device includes a second context storage unit and a second communication processing unit that reports, to the application server, that the second identifier is activated.
    Type: Application
    Filed: May 10, 2017
    Publication date: May 30, 2019
    Applicant: NTT DOCOMO, INC.
    Inventors: Takashi Koshimizu, Syed Husain, Malla Reddy Sama
  • Publication number: 20190150226
    Abstract: An MS 300 controls a mobility level (IMM) of user device in an idle mode depending on a movement; state of the user device. The ME 300 includes a movement state acquisition section 320 that acquires the movement state of the user device, a mobility level selector 330 chat selects a mobility level out of the multiple mobility levels based on the movement state of the user device acquired by the movement state acquisition section 320, and a mobility level notification section 340 that notifies the user device of the mobility level selected by the mobility level selector 330.
    Type: Application
    Filed: May 11, 2017
    Publication date: May 16, 2019
    Applicant: NTT DOCOMO, INC.
    Inventors: Takashi Koshimizu, Irfan Ali, Syed Husain
  • Publication number: 20190141599
    Abstract: Provided are an anchor point control device and an anchor point control method that make it possible to select a more suitable anchor point when dynamically changing an anchor point (route switching point). An ME (300) acquires user information indicating at least either an attribute or a state of UE (100), and selects an anchor point out of an anchor point AL and an anchor point AC based on the acquired user information. In addition, the ME (300) notifies the UE 100 of the selected anchor point.
    Type: Application
    Filed: May 11, 2017
    Publication date: May 9, 2019
    Applicant: NTT DOCOMO, INC.
    Inventors: Takashi Koshimizu, Irfan Ali, Syed Husain
  • Patent number: 10231106
    Abstract: In a communication system 10, an IN-CSE 200 maps and retains a public IP address acquired from an MTC-UE 100 and an UE-ID, and receives an incoming message addressed to the MTC-UE 100 from an AS 40A. The IN-CSE 200, upon receiving the incoming message, sets the public IP address mapped with the retained UE-ID in a destination address, and delivers to a GGSN/PGW 310 an IP packet containing the corresponding UE-ID. The GGSN/PGW 310 identifies a private IP address assigned to the MTC-UE 100, based on the UE-ID included in the IP packet received from the IN-CSE 200.
    Type: Grant
    Filed: November 14, 2014
    Date of Patent: March 12, 2019
    Assignee: NTT DOCOMO, INC.
    Inventors: Takashi Koshimizu, Itsuma Tanaka, Irfan Ali
  • Publication number: 20190039343
    Abstract: A servo press machine includes an eccentric shaft, a connecting rod, a slide, an eccentric shaft-side sliding surface, a connecting rod-side sliding surface, an oil supply port, and a supply mechanism. The oil supply port opens on the eccentric shaft-side sliding surface or the connecting rod-side sliding surface, and supplies a lubricant between the eccentric shaft-side sliding surface and the connecting rod-side sliding surface. The supply mechanism supplies the lubricant to the oil supply port. The eccentric shaft-side sliding surface is formed on the eccentric shaft that is rotationally driven by a servomotor. The oil supply port is formed on the connecting rod-side sliding surface of the connecting rod that moves upward and downward due to the rotational driving of the eccentric shaft.
    Type: Application
    Filed: August 2, 2018
    Publication date: February 7, 2019
    Inventor: Takashi KOSHIMIZU
  • Patent number: 10033652
    Abstract: When congestion is detected in an S-GW, communications are allowed to continue as many as possible. A mobile communication method according to the present invention includes: notifying, by the S-GW, a PDF in a PCRF of detection of congestion when the congest is detected; acquiring, by the PDF in the PCRF, charging system information regarding UEs using an S1 bearer and an S5 bearer set in the S-GW from an HSS; acquiring, by the PDF in the PCRF, communication service class information in a flow unit in the S1 bearer and the S5 bearer from the P-GW according to the notification; and performing, by the PDF in the PCRF, bandwidth adjustment on specific flows of the S1 bearer and the S5 bearer based on the charging system information and the communication service class information in the flow unit.
    Type: Grant
    Filed: November 7, 2012
    Date of Patent: July 24, 2018
    Assignee: NTT DOCOMO, INC.
    Inventors: Takashi Koshimizu, Tomoki Shibahara, Ryohei Ohgushi, Takashi Morita, Shin-ichi Isobe
  • Publication number: 20180206107
    Abstract: Provided is a radio communication system, a radio base station, a mobility management entity, a user device, and a communication control method in which an idle user device can be quickly and reliably returned to a connected state in a configuration in which a huge number of user devices (UE) are connected to a radio network such as in CIoT. The communication control method includes forwarding, when UE has transitioned from a connected state to an idle state, in which eNB forwards to MME AS Context that is a context of an access layer between the UE and the eNB; transmitting in which the MME transmits the AS Context to the eNB in response to an acquisition request of the AS Context from the eNB; and causing the eNB to return the UE to the connected state by using the AS Context transmitted from the MME.
    Type: Application
    Filed: July 12, 2016
    Publication date: July 19, 2018
    Applicant: NTT DOCOMO, INC.
    Inventors: Takashi Koshimizu, Irfan Ali, Syed Husain