Patents by Inventor Takaaki Koyama

Takaaki Koyama 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: 11176252
    Abstract: An intrusion prevention device includes a reception unit, a monitoring unit, and a determination unit. The reception unit receives, from a control target device, a notification indicating a state of the control target device. The monitoring unit receives a control command transmitted from a control device to the control target device. The determination unit determines whether to permit or block passage of the control command received by the monitoring unit in accordance with the state of the control target device received by the reception unit.
    Type: Grant
    Filed: September 26, 2017
    Date of Patent: November 16, 2021
    Assignees: NIPPON TELEGRAPH AND TELEPHONE CORPORATION, MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventors: Keiichi Okabe, Takaaki Koyama, Jun Miyoshi, Yoshihiro Itoh, Naohiko Yoshizumi, Tetsuo Takahashi, Yuki Mori, Toshiyuki Yamada, Naoki Yamasaki
  • Patent number: 11133137
    Abstract: An operation device includes a scroll wheel, a portion of which projects from an opening of an operation surface. The scroll wheel is configured to be rotated by an operator. The scroll wheel includes a ring member that is formed by a light transmissive member, which is configured to transmit light. The operation device includes: a light source that is configured to generate light for nighttime illumination; a wheel illumination light guide member that is configured to guide the light, which is outputted from the light source, to the scroll wheel; and a metal film that is formed at an inner peripheral surface of the ring member.
    Type: Grant
    Filed: February 17, 2020
    Date of Patent: September 28, 2021
    Assignees: DENSO CORPORATION, TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Yukihide Ota, Hiromune Wada, Toshinori Aoki, Takaaki Koyama, Masahiro Kasai
  • Patent number: 11050776
    Abstract: A security measure invalidation prevention device includes an acquisition unit that acquires invalidated security point information about an invalidated security point among security points each having a measure function performing a security measure on a node connected to a network. The invalidated security point has a measure function to be invalidated. The device also includes a determination unit that determines whether a security event to be addressed with the measure function of the invalidated security point is present on the basis of the invalidated security point information acquired by the acquisition unit. The device further includes an extraction unit that extracts a security point to which the measure function of the invalidated security point can be shifted when the determination unit determines that the security event is present.
    Type: Grant
    Filed: February 29, 2016
    Date of Patent: June 29, 2021
    Assignee: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Toshiharu Kishi, Yasuhiro Teramoto, Bo Hu, Yukio Nagafuchi, Takaaki Koyama, Hideo Kitazume
  • Patent number: 11016707
    Abstract: A control device according to the present invention includes: a memory; and processing circuitry coupled to the memory and configured to: detect a state of access to table data stored in a first logical disk of a physical disk and to which first data is written and a state of access to a write ahead log (WAL) stored in a second logical disk of the physical disk and to which second data is written or to a WAL stored in a second storage medium different from the physical disk and to which the second data is written, and acquire an I/O use ratio of the WAL and an I/O use ratio of the table data, and set a writing destination of the second data to one of the WAL stored in the second logical disk and the WAL stored in the second storage medium.
    Type: Grant
    Filed: June 5, 2018
    Date of Patent: May 25, 2021
    Assignee: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventor: Takaaki Koyama
  • Patent number: 10972490
    Abstract: A specifying device receives detection information from a security device that detects hacking into a network or an activity of a terminal related to infection, and specifies a state of the terminal from information of the terminal and content of activity of the terminal included in the detection information. The specifying device specifies, when specifying that the terminal is in the state of being infected with malware, a terminal that may be infected before performing the content of the activity of the terminal included in the detection information based on connection information stored in a configuration information storage device, and specifies a terminal located on a route, along which the infected terminal is likely to be used for hacking or for infection of the terminal in the future, as a candidate for an infected terminal likely to be infected.
    Type: Grant
    Filed: October 5, 2016
    Date of Patent: April 6, 2021
    Assignee: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Yasuhiro Teramoto, Bo Hu, Toshiharu Kishi, Yukio Nagafuchi, Takaaki Koyama, Hideo Kitazume
  • Publication number: 20200185170
    Abstract: An operation device includes a scroll wheel, a portion of which projects from an opening of an operation surface. The scroll wheel is configured to be rotated by an operator. The scroll wheel includes a ring member that is formed by a light transmissive member, which is configured to transmit light. The operation device includes: a light source that is configured to generate light for nighttime illumination; a wheel illumination light guide member that is configured to guide the light, which is outputted from the light source, to the scroll wheel; and a metal film that is formed at an inner peripheral surface of the ring member.
    Type: Application
    Filed: February 17, 2020
    Publication date: June 11, 2020
    Inventors: Yukihide OTA, Hiromune WADA, Toshinori AOKI, Takaaki KOYAMA, Masahiro KASAI
  • Patent number: 10616270
    Abstract: An optimization apparatus collects cyber attack information that is information related to a cyber attack, and system information that is information related to an entire system including a device that has received the cyber attack. Based on the collected cyber attack information and system information, the optimization apparatus identifies an attack route of the cyber attack, and extracts, as dealing point candidates, devices that are on the attack route and have an effective dealing function against the cyber attack. Subsequently, the optimization apparatus selects a dealing point from the extracted dealing point candidates by using optimization logic that has been set.
    Type: Grant
    Filed: November 5, 2015
    Date of Patent: April 7, 2020
    Assignee: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Bo Hu, Toshiharu Kishi, Hideo Kitazume, Takaaki Koyama, Yukio Nagafuchi, Yasuhiro Teramoto
  • Publication number: 20200089433
    Abstract: A control device according to the present invention includes: a memory; and processing circuitry coupled to the memory and configured to: detect a state of access to table data stored in a first logical disk of a physical disk and to which first data is written and a state of access to a write ahead log (WAL) stored in a second logical disk of the physical disk and to which second data is written or to a WAL stored in a second storage medium different from the physical disk and to which the second data is written, and acquire an I/O use ratio of the WAL and an I/O use ratio of the table data, and set a writing destination of the second data to one of the WAL stored in the second logical disk and the WAL stored in the second storage medium.
    Type: Application
    Filed: June 5, 2018
    Publication date: March 19, 2020
    Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventor: Takaaki KOYAMA
  • Patent number: 10558033
    Abstract: A light deflector 1 includes a reflector (2), inner piezoelectric actuators (4), an inner frame (5), outer piezoelectric actuators (6), and an outer frame (7). The reflector (2) is oscillated about a first axis Ua and a second axis Ub by the inner piezoelectric actuators (4) and the outer piezoelectric actuators (6), respectively. Formed on the rear surface of the light deflector 1 is a projecting rib (52), which projects from an encircling rib (51) of the inner frame (5) and reaches a corner portion (36) of a distal end portion of a piezoelectric cantilever (13a). A vertical side (22b) has an outer recess (35). The outer recess (35) extends along the projecting rib (52) in a portion of the distal end side of the piezoelectric cantilever (13a).
    Type: Grant
    Filed: February 17, 2019
    Date of Patent: February 11, 2020
    Assignee: STANLEY ELECTRIC CO., LTD.
    Inventors: Makoto Sakurai, Takaaki Koyama, Tomotaka Asari
  • Publication number: 20190294794
    Abstract: An intrusion prevention device includes a reception unit, a monitoring unit, and a determination unit. The reception unit receives, from a control target device, a notification indicating a state of the control target device. The monitoring unit receives a control command transmitted from a control device to the control target device. The determination unit determines whether to permit or block passage of the control command received by the monitoring unit in accordance with the state of the control target device received by the reception unit.
    Type: Application
    Filed: September 26, 2017
    Publication date: September 26, 2019
    Applicants: NIPPON TELEGRAPH AND TELEPHONE CORPORATION, MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventors: Keiichi OKABE, Takaaki KOYAMA, Jun MIYOSHI, Yoshihiro ITOH, Naohiko YOSHIZUMI, Tetsuo TAKAHASHI, Yuki MORI, Toshiyuki YAMADA, Naoki YAMASAKI
  • Publication number: 20190258049
    Abstract: A light deflector 1 includes a reflector (2), inner piezoelectric actuators (4), an inner frame (5), outer piezoelectric actuators (6), and an outer frame (7). The reflector (2) is oscillated about a first axis Ua and a second axis Ub by the inner piezoelectric actuators (4) and the outer piezoelectric actuators (6), respectively. Formed on the rear surface of the light deflector 1 is a projecting rib (52), which projects from an encircling rib (51) of the inner frame (5) and reaches a corner portion (36) of a distal end portion of a piezoelectric cantilever (13a). A vertical side (22b) has an outer recess (35). The outer recess (35) extends along the projecting rib (52) in a portion of the distal end side of the piezoelectric cantilever (13a).
    Type: Application
    Filed: February 17, 2019
    Publication date: August 22, 2019
    Applicant: STANLEY ELECTRIC CO., LTD.
    Inventors: Makoto SAKURAI, Takaaki KOYAMA, Tomotaka ASARI
  • Patent number: 10321106
    Abstract: A position detection apparatus includes a first irradiation section and a second irradiation section that irradiate an operation surface with detection light, an imaging section that captures an image of the operation surface, and a detection section that detects a pointed position pointed with a pointing element based on the captured image. The first irradiation section is disposed in a position closer to the operation surface than the second irradiation section and emits light having intensity higher than the intensity of the light emitted from the second irradiation section. Instead, the position detection apparatus further includes an adjustment section that adjusts the intensity of the light emitted from at least one of the first irradiation section and the second irradiation section to adjust contrast between the pointing element and the operation surface to a value that exceeds a threshold.
    Type: Grant
    Filed: February 6, 2017
    Date of Patent: June 11, 2019
    Assignee: Seiko Epson Corporation
    Inventor: Takaaki Koyama
  • Publication number: 20190081970
    Abstract: A specifying device receives detection information from a security device that detects hacking into a network or an activity of a terminal related to infection, and specifies a state of the terminal from information of the terminal and content of activity of the terminal included in the detection information. The specifying device specifies, when specifying that the terminal is in the state of being infected with malware, a terminal that may be infected before performing the content of the activity of the terminal included in the detection information based on connection information stored in a configuration information storage device, and specifies a terminal located on a route, along which the infected terminal is likely to be used for hacking or for infection of the terminal in the future, as a candidate for an infected terminal likely to be infected.
    Type: Application
    Filed: October 5, 2016
    Publication date: March 14, 2019
    Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Yasuhiro TERAMOTO, Bo HU, Toshiharu KISHI, Yukio NAGAFUCHI, Takaaki KOYAMA, Hideo KITAZUME
  • Patent number: 10181031
    Abstract: A cloud controller performs, when an attack on a VM in any of data centers in a system is detected, setting of NAT of a private IP address of a VM(A), for a boundary router of each data center other than a data center that the VM(A) belongs to, the VM(A) being a victim. Next, the cloud controller performs setting for a redirecting device in the same data center as the VM(A), such that the redirecting device redirects access from a user terminal to a host under a boundary router of any of the respective data centers other than the data center. Thereafter, the cloud controller changes a private IP address of the VM(A) in a NAT setting of a boundary router of the data center to a private IP address of the redirecting device.
    Type: Grant
    Filed: August 26, 2015
    Date of Patent: January 15, 2019
    Assignee: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Yukio Nagafuchi, Yasuhiro Teramoto, Toshiharu Kishi, Takaaki Koyama, Hideo Kitazume
  • Publication number: 20180041535
    Abstract: A security measure invalidation prevention device includes an acquisition unit that acquires invalidated security point information about an invalidated security point among security points each having a measure function performing a security measure on a node connected to a network. The invalidated security point has a measure function to be invalidated. The device also includes a determination unit that determines whether a security event to be addressed with the measure function of the invalidated security point is present on the basis of the invalidated security point information acquired by the acquisition unit. The device further includes an extraction unit that extracts a security point to which the measure function of the invalidated security point can be shifted when the determination unit determines that the security event is present.
    Type: Application
    Filed: February 29, 2016
    Publication date: February 8, 2018
    Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Toshiharu KISHI, Yasuhiro TERAMOTO, Bo HU, Yukio NAGAFUCHI, Takaaki KOYAMA, Hideo KITAZUME
  • Patent number: 9875525
    Abstract: An image processing device includes a detection section adapted to detect a pointing direction of a pointing body, and a rotation section adapted to rotate an image based on the pointing direction detected by the detection section.
    Type: Grant
    Filed: March 18, 2014
    Date of Patent: January 23, 2018
    Assignee: SEIKO EPSON CORPORATION
    Inventor: Takaaki Koyama
  • Publication number: 20170339183
    Abstract: An optimization apparatus collects cyber attack information that is information related to a cyber attack, and system information that is information related to an entire system including a device that has received the cyber attack. Based on the collected cyber attack information and system information, the optimization apparatus identifies an attack route of the cyber attack, and extracts, as dealing point candidates, devices that are on the attack route and have an effective dealing function against the cyber attack. Subsequently, the optimization apparatus selects a dealing point from the extracted dealing point candidates by using optimization logic that has been set.
    Type: Application
    Filed: November 5, 2015
    Publication date: November 23, 2017
    Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Bo HU, Toshiharu KISHI, Hideo KITAZUME, Takaaki KOYAMA, Yukio NAGAFUCHI, Yasuhiro TERAMOTO
  • Publication number: 20170285769
    Abstract: A position detection apparatus includes a projection unit that projects an image, a radiation unit that radiates light, a detection unit that detects reflected light of the light radiated from the radiation unit, and an output control unit that performs control for outputting information corresponding to a detection position of the reflected light based on a detection result from the detection unit when a radiation direction of the light radiated from the radiation unit is adjusted.
    Type: Application
    Filed: June 19, 2017
    Publication date: October 5, 2017
    Applicant: SEIKO EPSON CORPORATION
    Inventor: Takaaki KOYAMA
  • Publication number: 20170237955
    Abstract: A position detection apparatus includes a first irradiation section and a second irradiation section that irradiate an operation surface with detection light, an imaging section that captures an image of the operation surface, and a detection section that detects a pointed position pointed with a pointing element based on the captured image. The first irradiation section is disposed in a position closer to the operation surface than the second irradiation section and emits light having intensity higher than the intensity of the light emitted from the second irradiation section. Instead, the position detection apparatus further includes an adjustment section that adjusts the intensity of the light emitted from at least one of the first irradiation section and the second irradiation section to adjust contrast between the pointing element and the operation surface to a value that exceeds a threshold.
    Type: Application
    Filed: February 6, 2017
    Publication date: August 17, 2017
    Inventor: Takaaki Koyama
  • Publication number: 20170228539
    Abstract: A cloud controller performs, when an attack on a VM in any of data centers in a system is detected, setting of NAT of a private IP address of a VM(A), for a boundary router of each data center other than a data center that the VM(A) belongs to, the VM(A) being a victim. Next, the cloud controller performs setting for a redirecting device in the same data center as the VM(A), such that the redirecting device redirects access from a user terminal to a host under a boundary router of any of the respective data centers other than the data center. Thereafter, the cloud controller changes a private IP address of the VM(A) in a NAT setting of a boundary router of the data center to a private IP address of the redirecting device.
    Type: Application
    Filed: August 26, 2015
    Publication date: August 10, 2017
    Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Yukio NAGAFUCHI, Yasuhiro TERAMOTO, Toshiharu KISHI, Takaaki KOYAMA, Hideo KITAZUME