Patents by Inventor Takumi Harada
Takumi Harada 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: 11876555Abstract: A breakdown determination system includes a switching device that switches a transmission path of optical signals between an upper network and a lower network, one or more intermediate communication devices that relay communication between the upper network and the lower network, a selection device that selects a standby port of the intermediate communication devices, a measurement device that connects to the selected standby port via the switching device and measures an optical signal of the connected standby port, a determination device that determines whether an intermediate communication device including the selected standby port breaks down based on a result of measuring the optical signal, and a storage device that stores a result of determining whether the intermediate communication device breaks down.Type: GrantFiled: April 23, 2019Date of Patent: January 16, 2024Assignee: NIPPON TELEGRAPH AND TELEPHONE CORPORATIONInventors: Tomoya Hatano, Takumi Harada, Hiroo Suzuki
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Patent number: 11825247Abstract: A wiring information creation system includes a switching device that switches a transmission path of an optical signal between an upper network and a lower network in units of combinations of physical ports, a switching control device that outputs, to the switching device, an instruction for switching the transmission path such that the transmission path passes through a selected physical port, a connection control device that determines whether a communication port of an intermediate communication device that relays communication between the upper network and the lower network and the selected physical port have been connected to each other and acquires, from the intermediate communication device, a number of the communication port connected to the selected physical port, and an information creation device that creates connection information indicating the communication port connected to the selected physical port and updates wiring information indicating connection information for each physical port of theType: GrantFiled: April 23, 2019Date of Patent: November 21, 2023Assignee: NIPPON TELEGRAPH AND TELEPHONE CORPORATIONInventors: Takumi Harada, Tomoya Hatano, Hiroo Suzuki
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Patent number: 11792040Abstract: A communication system is a communication system connected to an upper network and a lower network, and includes at least one intermediate communication device including a plurality of upper ports for inputting and outputting optical signals to and from the upper network, and a plurality of lower ports for inputting and outputting optical signals to and from the lower network, the intermediate communication device being configured to relay communication between the upper network and the lower network, a switching device that is connected to the upper and lower networks and the plurality of upper and lower ports, switches a connection between the upper network and the plurality of upper ports, and switches a connection between the lower network and a plurality of lower ports, and a control device that outputs, to the switching device, an instruction to switch the connection by the switching device according to a communication status between the upper network and the lower network.Type: GrantFiled: April 23, 2019Date of Patent: October 17, 2023Assignee: NIPPON TELEGRAPH AND TELEPHONE CORPORATIONInventors: Tomoya Hatano, Takumi Harada, Hiroo Suzuki
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Patent number: 11630656Abstract: A communication apparatus includes: a memory that stores, first data on firmware before update, second data on firmware after the update, and a table in which the first data or the second data is associated with an address where the first data or the second data is positioned; and a processor that executes processing based on the first data or the second data positioned at the address defined in the table.Type: GrantFiled: April 8, 2019Date of Patent: April 18, 2023Assignee: NIPPON TELEGRAPH AND TELEPHONE CORPORATIONInventors: Takumi Harada, Manabu Yoshino, Junichi Kani
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Publication number: 20220209988Abstract: A communication system is a communication system connected to an upper network and a lower network, and includes at least one intermediate communication device including a plurality of upper ports for inputting and outputting optical signals to and from the upper network, and a plurality of lower ports for inputting and outputting optical signals to and from the lower network, the intermediate communication device being configured to relay communication between the upper network and the lower network, a switching device that is connected to the upper and lower networks and the plurality of upper and lower ports, switches a connection between the upper network and the plurality of upper ports, and switches a connection between the lower network and a plurality of lower ports, and a control device that outputs, to the switching device, an instruction to switch the connection by the switching device according to a communication status between the upper network and the lower network.Type: ApplicationFiled: April 23, 2019Publication date: June 30, 2022Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATIONInventors: Tomoya HATANO, Takumi HARADA, Hiroo SUZUKI
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Publication number: 20220200698Abstract: A breakdown determination system includes a switching device that switches a transmission path of optical signals between an upper network and a lower network, one or more intermediate communication devices that relay communication between the upper network and the lower network, a selection device that selects a standby port of the intermediate communication devices, a measurement device that connects to the selected standby port via the switching device and measures an optical signal of the connected standby port, a determination device that determines whether an intermediate communication device including the selected standby port breaks down based on a result of measuring the optical signal, and a storage device that stores a result of determining whether the intermediate communication device breaks down.Type: ApplicationFiled: April 23, 2019Publication date: June 23, 2022Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATIONInventors: Tomoya HATANO, Takumi HARADA, Hiroo SUZUKI
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Patent number: 11360758Abstract: A communication processing device including: a memory that stores data relating to a pre-update firmware, and second data relating to a post-update firmware, and that stores first reference destination address indicating the storage area of reference destination included in the first data in association with the reference destination; a rewriting unit configured to rewrite at least some of the first reference destination address stored in the memory with second reference destination address indicating the storage area of the reference destination in the second data; and a control unit configured to, when referring to the reference destination in the first data, refer to the second data on the basis of the second reference destination address stored in the memory.Type: GrantFiled: February 28, 2018Date of Patent: June 14, 2022Assignee: NIPPON TELEGRAPH AND TELEPHONE CORPORATIONInventors: Takumi Harada, Hirotaka Ujikawa, Manabu Yoshino, Noriyuki Oota, Kenichi Suzuki
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Publication number: 20220159358Abstract: A wiring information creation system includes a switching device that switches a transmission path of an optical signal between an upper network and a lower network in units of combinations of physical ports, a switching control device that outputs, to the switching device, an instruction for switching the transmission path such that the transmission path passes through a selected physical port, a connection control device that determines whether a communication port of an intermediate communication device that relays communication between the upper network and the lower network and the selected physical port have been connected to each other and acquires, from the intermediate communication device, a number of the communication port connected to the selected physical port, and an information creation device that creates connection information indicating the communication port connected to the selected physical port and updates wiring information indicating connection information for each physical port of theType: ApplicationFiled: April 23, 2019Publication date: May 19, 2022Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATIONInventors: Takumi HARADA, Tomoya HATANO, Hiroo SUZUKI
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Publication number: 20210117178Abstract: A communication apparatus includes: a memory that stores, first data on firmware before update, second data on firmware after the update, and a table in which the first data or the second data is associated with an address where the first data or the second data is positioned; and a processor that executes processing based on the first data or the second data positioned at the address defined in the table.Type: ApplicationFiled: April 8, 2019Publication date: April 22, 2021Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATIONInventors: Takumi HARADA, Manabu YOSHINO, Junichi KANI
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Publication number: 20190377569Abstract: A communication processing device including: a memory that stores data relating to a pre-update firmware, and second data relating to a post-update firmware, and that stores first reference destination address indicating the storage area of reference destination included in the first data in association with the reference destination; a rewriting unit configured to rewrite at least some of the first reference destination address stored in the memory with second reference destination address indicating the storage area of the reference destination in the second data; and a control unit configured to, when referring to the reference destination in the first data, refer to the second data on the basis of the second reference destination address stored in the memory.Type: ApplicationFiled: February 28, 2018Publication date: December 12, 2019Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATIONInventors: Takumi HARADA, Hirotaka UJIKAWA, Manabu YOSHINO, Noriyuki OOTA, Kenichi SUZUKI
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Patent number: 8167498Abstract: A body part of a rotation detecting sensor of a rotation number detector which is provided on a bearing apparatus for an axle has a large diameter part formed in its upper part and a small diameter part formed in its lower part, and at the same time, a sensor fitting hole part which is formed in an outer ring of a bearing part and into which the body part of the rotation detecting sensor is inserted is so formed that an radially outer part thereof has an inner diameter substantially equal to an outer diameter of the large diameter part of the body part, and a lower part thereof has an inner diameter slightly larger than an outer diameter of the small diameter part of the body part.Type: GrantFiled: February 21, 2008Date of Patent: May 1, 2012Assignee: JTEKT CorporationInventors: Yutaka Koma, Joji Miyawaki, Takumi Harada, Shigeru Inoue
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Publication number: 20100109424Abstract: An axle bearing apparatus includes a hub shaft including a wheel-mounting flange formed at its outer end portion, and a cylindrical portion formed on an inner side surface of the flange, a bearing portion press-fitted on the cylindrical portion of the hub shaft and including an inner ring, an outer ring and rolling elements disposed between the inner and outer rings, and a slinger having a through hole formed through its central portion. The through hole is fitted on the cylindrical portion such that an outer diameter of the slinger is generally equal to an outer diameter of the flange, and the slinger is press-clamped to the inner side surface of the flange by bolts press-fitted respectively in a plurality of bolt holes formed in the flange. An adhesive bonds the slinger to the flange.Type: ApplicationFiled: January 7, 2010Publication date: May 6, 2010Applicant: JTEKT CorporationInventors: Shigeru Inoue, Chikayoshi Murotani, Shigeaki Furusawa, Takumi Harada, Yutaka Koma
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Patent number: 7708353Abstract: An axle bearing apparatus includes a hub shaft including a wheel-mounting flange formed at its outer end portion, and a cylindrical portion formed on an inner side surface of the flange, a bearing portion press-fitted on the cylindrical portion of the hub shaft and including an inner ring, an outer ring and rolling elements disposed between the inner and outer rings, and a slinger having a through hole formed through its central portion. The through hole is fitted on the cylindrical portion such that an outer diameter of the slinger is generally equal to an outer diameter of the flange, and the slinger is press-clamped to the inner side surface of the flange by bolts press-fitted respectively in a plurality of bolt holes formed in the flange. O-rings are interposed between the flange and the slinger.Type: GrantFiled: August 13, 2007Date of Patent: May 4, 2010Assignee: JTEKT CorporationInventors: Shigeru Inoue, Chikayoshi Murotani, Shigeaki Furusawa, Takumi Harada, Yutaka Koma
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Publication number: 20080219608Abstract: A body part of a rotation detecting sensor of a rotation number detector which is provided on a bearing apparatus for an axle has a large diameter part formed in its upper part and a small diameter part formed in its lower part, and at the same time, a sensor fitting hole part which is formed in an outer ring of a bearing part and into which the body part of the rotation detecting sensor is inserted is so formed that an radially outer part thereof has an inner diameter substantially equal to an outer diameter of the large diameter part of the body part, and a lower part thereof has an inner diameter slightly larger than an outer diameter of the small diameter part of the body part.Type: ApplicationFiled: February 21, 2008Publication date: September 11, 2008Applicant: JTEKT CORPORATIONInventors: Yutaka Koma, Joji Miyawaki, Takumi Harada, Shigeru Inoue
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Publication number: 20080174170Abstract: An axle bearing apparatus includes a hub shaft including a wheel-mounting flange formed at its outer end portion, and a cylindrical portion formed on an inner side surface of the flange, a bearing portion press-fitted on the cylindrical portion of the hub shaft and including an inner ring, an outer ring and rolling elements disposed between the inner and outer rings, and a slinger having a through hole formed through its central portion. The through hole is fitted on the cylindrical portion such that an outer diameter of the slinger is generally equal to an outer diameter of the flange, and the slinger is press-clamped to the inner side surface of the flange by bolts press-fitted respectively in a plurality of bolt holes formed in the flange. O-rings are interposed between the flange and the slinger.Type: ApplicationFiled: August 13, 2007Publication date: July 24, 2008Applicant: JTEKT CORPORATIONInventors: Shigeru Inoue, Chikayoshi Murotani, Shigeaki Furusawa, Takumi Harada, Yutaka Koma
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Publication number: 20080036290Abstract: An axle bearing apparatus includes a hub shaft for common use with a driving wheel bearing apparatus and a driven wheel bearing apparatus, the hub shaft including an axle-mounting flange formed at its outer end portion, and a cylindrical portion formed at an inner side of the flange and having a through hole formed in a center portion of the cylindrical portion, and a bearing portion press-fitted on the cylindrical portion of the hub shaft and including an inner ring, an outer ring and rolling elements disposed between the inner and outer rings. The hub shaft is used for the driven wheel bearing apparatus, and alternatively the through hole in the hub shaft is enlarged in diameter, and a spline are formed axially in an inner surface of the diameter-enlarged through hole, and the hub shaft thus processed is used for the driving wheel bearing apparatus.Type: ApplicationFiled: August 13, 2007Publication date: February 14, 2008Applicant: JTEKT CORPORATIONInventors: Shigeru Inoue, Takumi Harada, Yutaka Koma