Patents by Inventor Satoshi Ohkubo
Satoshi Ohkubo 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: 20220156686Abstract: A commodity monitoring device includes a commodity state detection unit configured to, on the basis of image information of a commodity group area set on a commodity shelf, detect removal of a commodity in a quantity satisfying a predetermined condition from the commodity group area; and a change detection information output unit configured to, if the commodity state detection unit has detected the removal, output to an output destination device change detection information including image time-series data of the commodity group area from a point in time at which the commodity state detection unit detected the removal to a predetermined past point in time.Type: ApplicationFiled: February 1, 2022Publication date: May 19, 2022Applicant: NEC CorporationInventors: Takayuki NAKAGAWA, Yuma Shibuya, Shigeaki Tokuda, Junpei Yamasaki, Satoshi Ohkubo, Hiroshi Tezuka, Nobuyki Ikuta, Kenichi Oohashi
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Patent number: 11270257Abstract: A commodity monitoring device includes a commodity state detection unit configured to, on the basis of image information of a commodity group area set on a commodity shelf, detect removal of a commodity in a quantity satisfying a predetermined condition from the commodity group area; and a change detection information output unit configured to, if the commodity state detection unit has detected the removal, output to an output destination device change detection information including image time-series data of the commodity group area from a point in time at which the commodity state detection unit detected the removal to a predetermined past point in time.Type: GrantFiled: December 11, 2017Date of Patent: March 8, 2022Assignee: NEC CORPORATIONInventors: Takayuki Nakagawa, Yuma Shibuya, Shigeaki Tokuda, Junpei Yamasaki, Satoshi Ohkubo, Hiroshi Tezuka, Nobuyuki Ikuta, Kenichi Oohashi
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Publication number: 20200005231Abstract: A commodity monitoring device includes a commodity state detection unit configured to, on the basis of image information of a commodity group area set on a commodity shelf, detect removal of a commodity in a quantity satisfying a predetermined condition from the commodity group area; and a change detection information output unit configured to, if the commodity state detection unit has detected the removal, output to an output destination device change detection information including image time-series data of the commodity group area from a point in time at which the commodity state detection unit detected the removal to a predetermined past point in time.Type: ApplicationFiled: December 11, 2017Publication date: January 2, 2020Applicant: NEC CorporationInventors: Takayuki NAKAGAWA, Yuma SHIBUYA, Shigeaki TOKUDA, Junpei YAMASAKI, Satoshi OHKUBO, Hiroshi TEZUKA, Nobuyuki IKUTA, Kenichi OOHASHI
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Patent number: 10523696Abstract: Proposed are a log analyzing system and a log analyzing method capable of more effectively defending a control system from unauthorized access. The log analyzing system which analyzes a communication log of a control device comprises a network device which receives a communication packet corresponding to the communication log from a network, and a monitoring device which monitors communication to the network device, wherein the monitoring device obtains a difference between a communication pattern of the communication packet and a stable pattern, which is a pattern of a communication in a state of no unauthorized access, restores the communication packet based on the difference, and notifies the restored communication packet.Type: GrantFiled: October 27, 2017Date of Patent: December 31, 2019Assignee: Hitachi, Ltd.Inventors: Hiroki Uchiyama, Akifumi Yato, Satoshi Ohkubo, Kohhei Yamaguchi
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Patent number: 10348746Abstract: A system that detects any unauthorized communication without imposing a processing load on a control device is provided. In the incident detection system configured to detect any security incident, a gateway device includes: an ID generation unit that generates its own gateway device identification information; a detection packet generation unit that generates a detection packet including control information transmitted from a control device and path information obtained by adding its own gateway device identification information to a communication packet; a log generation unit that generates log information including the detection packet; and a device communication unit that transmits the log information to a management server connected to the gateway device over a network or transmits the detection packet to a control device controlled based on the control information.Type: GrantFiled: December 24, 2015Date of Patent: July 9, 2019Assignee: Hitachi, Ltd.Inventors: Hiroki Uchiyama, Toru Owada, Makoto Kayashima, Yusuke Fujihara, Satoshi Ohkubo, Jun Hamanaka
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Patent number: 10341294Abstract: A detection apparatus 30 stores a determination list (A1601) for determining whether there is unauthorized communication, receives a communication packet (A1501) flowing in a control system, determines whether a valid data pattern in the determination list (A1601) and a data pattern relating to the communication packet (A1501) match each other. When the valid data pattern in the determination list (A1601) and the data pattern relating to the communication packet do not match each other, the detection apparatus 30 calculates a similarity degree between the valid data pattern in the determination list and the data pattern relating to the communication packet, and determines whether the similarity degree satisfies a predetermined condition. When the similarity degree is determined not to satisfy the predetermined condition, the detection apparatus 30 determines that the communication packet (A1501) is an unauthorized communication packet.Type: GrantFiled: May 11, 2017Date of Patent: July 2, 2019Assignee: HITACHI, LTD.Inventors: Shugo Mikami, Hiroki Uchiyama, Satoshi Ohkubo, Kohhei Yamaguchi
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Patent number: 10051004Abstract: An evaluation system includes a network device, a gateway device, a policy evaluation device, and first and second control devices. The network device copies a packet received from the first control device and transmits to the gateway device and the policy evaluation device. The gateway device receives the copied packet, performs a first filtering based on the policy stored in a first policy storage unit, transmits the packet to the second control device while storing the result of the first filtering, and transmits the result of the stored first filtering to the policy evaluation device. The policy evaluation device receives the copied packet, performs a second filtering based on the policy stored in a second policy storage unit, stores the result of the second filtering, and evaluates the policy stored in the second policy storage unit based on the results of the two filterings.Type: GrantFiled: March 11, 2016Date of Patent: August 14, 2018Assignee: Hitachi, Ltd.Inventors: Hiroki Uchiyama, Yusuke Fujihara, Toru Owada, Makoto Kayashima, Satoshi Ohkubo, Jun Hamanaka
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Patent number: 9965625Abstract: Provided are a control system and an authentication device capable of detecting abnormality of a development device for distributing a control program and of preventing destruction and tampering of the program caused by the abnormality. To solve the above problem, there is provided: a control device that controls a controlled object; a development device that manages a plurality of control programs executed by the control device and sends the predetermined control program and information accompanying the control program to the network; and an authentication device having an authentication list storing the information accompanying the control program in association with the control program.Type: GrantFiled: September 5, 2014Date of Patent: May 8, 2018Assignee: Hitachi, Ltd.Inventors: Hiromichi Endoh, Tsutomu Yamada, Satoshi Ohkubo
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Publication number: 20180124083Abstract: Proposed are a log analyzing system and a log analyzing method capable of more effectively defending a control system from unauthorized access. The log analyzing system which analyzes a communication log of a control device comprises a network device which receives a communication packet corresponding to the communication log from a network, and a monitoring device which monitors communication to the network device, wherein the monitoring device obtains a difference between a communication pattern of the communication packet and a stable pattern, which is a pattern of a communication in a state of no unauthorized access, restores the communication packet based on the difference, and notifies the restored communication packet.Type: ApplicationFiled: October 27, 2017Publication date: May 3, 2018Inventors: Hiroki UCHIYAMA, Akifumi YATO, Satoshi OHKUBO, Kohhei YAMAGUCHI
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Publication number: 20180026998Abstract: A system that detects any unauthorized communication without imposing a processing load on a control device is provided. In the incident detection system configured to detect any security incident, a gateway device includes: an ID generation unit that generates its own gateway device identification information; a detection packet generation unit that generates a detection packet including control information transmitted from a control device and path information obtained by adding its own gateway device identification information to a communication packet; a log generation unit that generates log information including the detection packet; and a device communication unit that transmits the log information to a management server connected to the gateway device over a network or transmits the detection packet to a control device controlled based on the control information.Type: ApplicationFiled: December 24, 2015Publication date: January 25, 2018Inventors: Hiroki UCHIYAMA, Toru OWADA, Makoto KAYASHIMA, Yusuke FUJIHARA, Satoshi OHKUBO, Jun HAMANAKA
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Publication number: 20170331787Abstract: A detection apparatus 30 stores a determination list (A1601) for determining whether there is unauthorized communication, receives a communication packet (A1501) flowing in a control system, determines whether a valid data pattern in the determination list (A1601) and a data pattern relating to the communication packet (A1501) match each other. When the valid data pattern in the determination list (A1601) and the data pattern relating to the communication packet do not match each other, the detection apparatus 30 calculates a similarity degree between the valid data pattern in the determination list and the data pattern relating to the communication packet, and determines whether the similarity degree satisfies a predetermined condition. When the similarity degree is determined not to satisfy the predetermined condition, the detection apparatus 30 determines that the communication packet (A1501) is an unauthorized communication packet.Type: ApplicationFiled: May 11, 2017Publication date: November 16, 2017Applicant: HITACHI, LTD.Inventors: Shugo MIKAMI, Hiroki UCHIYAMA, Satoshi OHKUBO, Kohhei YAMAGUCHI
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Publication number: 20160366182Abstract: An evaluation system includes a network device, a gateway device, a policy evaluation device, and first and second control devices. The network device copies a packet received from the first control device and transmits to the gateway device and the policy evaluation device. The gateway device receives the copied packet, performs a first filtering based on the policy stored in a first policy storage unit, transmits the packet to the second control device while storing the result of the first filtering, and transmits the result of the stored first filtering to the policy evaluation device. The policy evaluation device receives the copied packet, performs a second filtering based on the policy stored in a second policy storage unit, stores the result of the second filtering, and evaluates the policy stored in the second policy storage unit based on the results of the two filterings.Type: ApplicationFiled: March 11, 2016Publication date: December 15, 2016Inventors: Hiroki UCHIYAMA, Yusuke FUJIHARA, Toru OWADA, Makoto KAYASHIMA, Satoshi OHKUBO, Jun HAMANAKA
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Publication number: 20160239662Abstract: Provided are a control system and an authentication device capable of detecting abnormality of a development device for distributing a control program and of preventing destruction and tampering of the program caused by the abnormality. To solve the above problem, there is provided: a control device that controls a controlled object; a development device that manages a plurality of control programs executed by the control device and sends the predetermined control program and information accompanying the control program to the network; and an authentication device having an authentication list storing the information accompanying the control program in association with the control program.Type: ApplicationFiled: September 5, 2014Publication date: August 18, 2016Inventors: Hiromichi ENDOH, Tsutomu YAMADA, Satoshi OHKUBO
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Patent number: 8610026Abstract: The method of lap-welding of metal plates using a laser beam, wherein at least one of the metal plates is surface-treated, includes putting a metal plate on the other metal plate and forming a gap between the metal plates so that gas generated at the treated surface at the time weld can be dissipated therethrough. A surface-treated first work and a surface-treated second work are placed one on the other and clamped by a clamp with an opening of the clamp centered at the location on the first work to be welded. Then a laser beam is directed to the location to form a weld. The beam is then directed near the inner periphery of the opening to form a heated portion so that the heated portion deflects to form a gap through which the gas generated at the treated surface dissipates thereby reducing gas pressure.Type: GrantFiled: December 2, 2009Date of Patent: December 17, 2013Assignee: Honda Motor Co., Ltd.Inventors: Haruhiko Kobayashi, Satoshi Ohkubo, Shinichi Miyasaka, Koji Oda, Naoki Takahashi, Hideari Kamachi
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Patent number: 8355806Abstract: An information control system capable of precisely defining and executing a condition for stipulating a state of an apparatus to be controlled. A storage unit stores an object definition table storing data items of a structure and a state of an object constituting a controlled system, and an actor definition table storing a monitor condition of an object state, an object monitor item and a setting value, as an actor as a control element for monitoring and controlling the object. A processing unit receives an object state from the controlled system, and when the state changes, transmits changed state value to the actor. The actor then refers to the actor definition table to judge whether the monitor condition is satisfied, and if satisfied, changes the setting value of the monitor condition and transmits a control command for setting value change to the object corresponding to the monitor item.Type: GrantFiled: December 24, 2009Date of Patent: January 15, 2013Assignee: Hitachi, Ltd.Inventors: Toshihiko Nakano, Satoshi Ohkubo, Ryota Mibe
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Publication number: 20110278266Abstract: The method of lap-welding of metal plates using a laser beam, wherein at least one of the metal plates is surface-treated, includes putting a metal plate on the other metal plate and forming a gap between the metal plates so that gas generated at the treated surface at the time weld can be dissipated therethrough. A surface-treated first work and a surface-treated second work are placed one on the other and clamped by means of a clamp with an opening of the clamp centered at the location on the first work to be welded. Then a laser beam is directed to the location to form a weld. The beam is then directed near the inner periphery of the opening to form a heated portion so that the heated portion deflects to form a gap through which the gas generated at the treated surface dissipates thereby reducing gas pressure.Type: ApplicationFiled: December 2, 2009Publication date: November 17, 2011Applicant: Honda Motor Co., Ltd.Inventors: Haruhiko Kobayashi, Satoshi Ohkubo, Shinichi Miyasaka, Koji Oda, Naoki Takahashi, Hideari Kamachi
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Publication number: 20100168876Abstract: An information control system capable of precisely defining and executing a condition for stipulating a state of an apparatus to be controlled. A storage unit stores an object definition table storing data items of a structure and a state of an object constituting a controlled system, and an actor definition table storing a monitor condition of an object state, an object monitor item and a setting value, as an actor as a control element for monitoring and controlling the object. A processing unit receives an object state from the controlled system, and when the state changes, transmits changed state value to the actor. The actor then refers to the actor definition table to judge whether the monitor condition is satisfied, and if satisfied, changes the setting value of the monitor condition and transmits a control command for setting value change to the object corresponding to the monitor item.Type: ApplicationFiled: December 24, 2009Publication date: July 1, 2010Inventors: Toshihiko NAKANO, Satoshi Ohkubo, Ryota Mibe
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Patent number: 7367487Abstract: A recess portion with a substantially circular cross-section is provided in the upper end surface of a supporting jig. When a probe of a device for friction stir welding is buried in the upper end surface of a layered portion, material in the vicinity of the buried portion flows plastically. This causes the plastically flowed material to flow into the recess portion, and as a result, the material is stirred in a relatively large region. When the material that flowed into the recess portion is cooled and solidified, a friction stir-welded portion-possessing member having a projection portion is obtained.Type: GrantFiled: August 4, 2004Date of Patent: May 6, 2008Assignee: Honda Motor Co., Ltd.Inventors: Toshihiro Murakawa, Taisei Wakisaka, Satoshi Ohkubo
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Publication number: 20060231594Abstract: A recess portion with a substantially circular cross-section is provided in the upper end surface of a supporting jig. When a probe of a device for friction stir welding is buried in the upper end surface of a layered portion, material in the vicinity of the buried portion flows plastically. This causes the plastically flowed material to flow into the recess portion, and as a result, the material is stirred in a relatively large region. When the material that flowed into the recess portion is cooled and solidified, a friction stir-welded portion-possessing member having a projection portion is obtained.Type: ApplicationFiled: August 4, 2004Publication date: October 19, 2006Applicant: HONDA MOTOR CO., LTD.,Inventors: Toshihiro Murakawa, Taisei Wakisaka, Satoshi Ohkubo
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Patent number: 6984267Abstract: A manufacture method for a semiconductor device includes the steps of: (a) transporting a silicon wafer into a reaction chamber having first and second gas introducing inlet ports; (b) introducing an oxidizing atmosphere via the first gas introducing inlet port and raising the temperature of the silicon wafer to an oxidation temperature; (c) introducing a wet oxidizing atmosphere to form a thermal oxide film on the surface of the silicon wafer; (d) purging gas in the reaction chamber by using inert gas to lower a residual water concentration to about 1000 ppm or lower; and (e) introducing an NO or N2O containing atmosphere into the reaction chamber via the second gas introducing inlet port while the silicon wafer is maintained above 700° C. and above the oxidation temperature, to introduce nitrogen into the thermal oxide film and form an oxynitride film. A thin oxynitride film can be manufactured with good mass productivity.Type: GrantFiled: September 6, 2002Date of Patent: January 10, 2006Assignee: Fujitsu LimitedInventors: Kiyoshi Irino, Ken-ichi Hikazutani, Tatsuya Kawamura, Taro Sugizaki, Satoshi Ohkubo, Toshiro Nakanishi, Kanetake Takasaki