Patents by Inventor Tomoyuki Kato

Tomoyuki Kato 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: 20240126877
    Abstract: A malware detection method for a home network system including one or more home appliances that are connected to a home network includes: obtaining a plurality of setting values including at least information indicating a device type and an operating state of a target device subject to malware detection; selecting one detection model out of a plurality of detection models according to the plurality of setting values obtained; obtaining power consumption or current consumption of the target device; and detecting whether the target device is infected with malware, using the one detection model selected in the selecting and based on the power consumption or the current consumption obtained.
    Type: Application
    Filed: December 22, 2023
    Publication date: April 18, 2024
    Applicant: Panasonic Intellectual Property Corporation of America
    Inventors: Ryo KATO, Manabu MAEDA, Tomoyuki HAGA, Naohisa NISHIDA
  • Publication number: 20240103338
    Abstract: A wavelength converter includes: a first multiplexer that combines input signal light with wavelength-conversion excitation light; a second multiplexer that combines the signal light with Raman excitation light; a first nonlinear optical medium that generates wavelength-converted light of the signal light, based on a nonlinear optical effect; and a second nonlinear optical medium that amplifies wavelength-converted light of the signal light output from the first nonlinear optical medium. A wavelength of the Raman excitation light being a wavelength within an amplification band that allows Raman amplification of wavelength-converted light.
    Type: Application
    Filed: July 7, 2023
    Publication date: March 28, 2024
    Applicant: Fujitsu Limited
    Inventor: Tomoyuki KATO
  • Publication number: 20240106316
    Abstract: A DC power supply and distribution system is obtained that improves power distribution efficiency at a low-load factor while suppressing overall upsizing. The DC power supply and distribution system includes a main AC/DC converter and an auxiliary AC/DC converter connected in parallel to the main AC/DC converter and having a rated power capacity smaller than that of the main AC/DC converter, wherein when the absolute value of the DC output power is smaller than the absolute value of a threshold power set smaller than the rated power capacity of the auxiliary AC/DC converter, a first switching command for switching from the first operation mode to the second operation mode is generated for a power conversion unit.
    Type: Application
    Filed: February 26, 2021
    Publication date: March 28, 2024
    Applicant: Mitsubishi Electric Corporation
    Inventors: Yusuke KATO, Takuya KATAOKA, Tomoyuki KAWAKAMI, Kikuo IZUMI
  • Publication number: 20240106560
    Abstract: A wavelength conversion device includes an optical medium that converts a first wavelength-multiplexed light including a plurality of first wavelengths belonging to a first wavelength band to a second wavelength-multiplexed light including a plurality of second wavelengths belonging to a second wavelength band, a first monitor configured to monitor power of the plurality of second wavelengths belonging to the second wavelength band, a storage unit that holds control information for adjusting a conversion characteristic of the optical medium, and a control unit configured to perform control of adjusting the conversion characteristic of the optical medium based on the control information acquired from the storage unit according to a first monitoring result by the first monitor.
    Type: Application
    Filed: September 21, 2023
    Publication date: March 28, 2024
    Applicant: Fujitsu Limited
    Inventors: Hidenobu MURANAKA, Tomoyuki KATO, Tomoaki Takeyama
  • Publication number: 20240088919
    Abstract: In a compression mode in which plaintext data is input, and compressed, a first code that is an error detection code is generated with respect to the plaintext data, and compressed. A circuit generates restored plaintext data in which the compressed data is decompressed, for confirming successfulness. A second code that is an error detection code is generated with respect to the restored plaintext data and is compared with the first code. In a case where the first code and the second code agree, the compressed data and the first or second code are output. In a decompression mode, plaintext data is generated in which the input compressed data is decompressed. A third code that is an error detection code is generated with respect to the plaintext data and is compared with an input code, and when the input code and the third code agree, the plaintext data is output.
    Type: Application
    Filed: March 23, 2023
    Publication date: March 14, 2024
    Inventors: Tomoyuki KAMAZUKA, Kenshiro HIMOTO, Shoji KATO, Yuusaku KIYOTA
  • Publication number: 20240078720
    Abstract: An image processing apparatus includes an obtaining unit that obtains information indicating a position of deformation of a structure in an image capturing the structure. A display control unit displays a first deformation object indicating the position of the deformation of the structure in a superimposed manner on the image capturing the structure, and performs a control to decide a color of the first deformation object in the superimposed display in accordance with a color of a background of the first deformation object.
    Type: Application
    Filed: July 6, 2023
    Publication date: March 7, 2024
    Inventors: SHU KATO, TOMOYUKI SHIGETA, KEIGO KURIHARA
  • Publication number: 20240071128
    Abstract: A detection device includes a plurality of optical sensors arranged in a detection area, a light source configured to emit light that is emitted to an object to be detected and is detected by the optical sensors, and a processor configured to perform processing based on outputs from the optical sensors. The processor is configured to determine, based on the outputs of the respective optical sensors obtained at a cycle of a predetermined period, an optical sensor an output of which is to be employed from among the optical sensors.
    Type: Application
    Filed: November 3, 2023
    Publication date: February 29, 2024
    Inventors: Hirofumi KATO, Makoto UCHIDA, Takanori TSUNASHIMA, Takashi NAKAMURA, Akio TAKIMOTO, Takao SOMEYA, Tomoyuki YOKOTA
  • Patent number: 11917899
    Abstract: An arylamine-fluorene alternating copolymer having a structural unit (A) is represented by Chemical Formula (1): wherein Chemical Formula (1) is the same as described in the detailed description.
    Type: Grant
    Filed: March 5, 2021
    Date of Patent: February 27, 2024
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Masashi Tsuji, Takahiro Fujiyama, Yusaku Konishi, Dae Young Chung, Fumiaki Kato, Jaejun Chang, Keigo Furuta, Takao Motoyama, Eun Joo Jang, Hyo Sook Jang, Tae Ho Kim, Tomoyuki Kikuchi, Yuho Won
  • Patent number: 11890981
    Abstract: A vehicle step device includes: a movable step that is provided in a door opening of a vehicle; and a drive controller that drives the movable step so that the movable step operates in deployment and storage directions. The drive controller includes a sidewalk detection unit that detects a sidewalk provided in parallel with a traveling road surface of the vehicle, a separation distance detecting unit that detects a separation distance between a side edge portion of the vehicle in which the movable step is stored and the sidewalk, and a deployment amount setting unit that sets a deployment amount of the movable step extending in a width direction of the traveling road surface from the side edge portion of the vehicle based on the separation distance. The deployment amount setting unit sets a deployment amount of the movable step to be larger as the separation distance increases.
    Type: Grant
    Filed: March 17, 2021
    Date of Patent: February 6, 2024
    Assignee: AISIN CORPORATION
    Inventor: Tomoyuki Kato
  • Patent number: 11799579
    Abstract: A wavelength conversion device includes: a first wavelength conversion circuit that wavelength-converts, by passing first multiplex light obtained by multiplexing an optical signal of a first wavelength band from each transmitter through an inside of a wavelength conversion medium by using excitation light, the first multiplex light into second multiplex light in a second wavelength band different from the first wavelength band; and a first generation circuit that generates a first control signal that controls each transmitter to shift a signal wavelength of each optical signal in the first multiplex light before wavelength conversion according to a subsequent part to which the second multiplex light after wavelength conversion in the first wavelength conversion circuit is input, and transmits the first control signal to each transmitter.
    Type: Grant
    Filed: November 15, 2021
    Date of Patent: October 24, 2023
    Assignee: FUJITSU LIMITED
    Inventors: Tomohiro Yamauchi, Tomoyuki Kato
  • Patent number: 11789204
    Abstract: A wavelength converter includes a polarization beam splitter configured to separate input light into a first polarization and a second polarization that are orthogonal to each other a non-linear optical medium configured to include a first incident end on which the first polarization separated by the polarization beam splitter is incident and a second incident end on which the second polarization separated by the polarization beam splitter is incident at a position different from a position of the first incident end, an optical multiplexer configured to multiplex the first polarization that has passed through the non-linear optical medium and the second polarization that has passed through the non-linear optical medium, and an optical element arranged between the non-linear optical medium and the optical multiplexer, and configured to correct a polarization axis of at least one of the first polarization and the second polarization incident on the optical multiplexer.
    Type: Grant
    Filed: November 16, 2021
    Date of Patent: October 17, 2023
    Assignee: FUJITSU LIMITED
    Inventor: Tomoyuki Kato
  • Patent number: 11721999
    Abstract: A charging control device includes: a determination section configured to make a determination as to whether an auxiliary device battery that supplies electric power to auxiliary devices of a vehicle is within a predetermined first temperature range; and a control section configured to, in a case in which the auxiliary device battery is within the first temperature range, cause a charging section to charge the auxiliary device battery.
    Type: Grant
    Filed: June 9, 2022
    Date of Patent: August 8, 2023
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Toru Ono, Akira Umemoto, Takuya Itoh, Tomoyuki Kato, Makoto Fujii
  • Patent number: 11709450
    Abstract: To provide an image forming device that can effectively predict a replacement timing of a photoconductor drum. A toner image is to be formed on the photoconductor drum. The charger is configured to charge the photoconductor drum. The potential sensor is configured to measure a charge potential of the photoconductor drum. The memory stores a manufacturing date of the photoconductor drum and a failure threshold value of the charge potential related to a failure of the photoconductor drum. The processor is configured to calculate an elapsed time from the manufacturing date based on the manufacturing date, update the failure threshold value based on the elapsed time, and predict a replacement timing of the photoconductor drum based on the updated failure threshold value.
    Type: Grant
    Filed: June 30, 2022
    Date of Patent: July 25, 2023
    Assignee: TOSHIBA TEC KABUSHIKI KAISHA
    Inventor: Tomoyuki Kato
  • Patent number: 11691556
    Abstract: A ramp system for a vehicle includes a control device. Using an obstacle detection device, the control device determines whether an obstacle exists within a ramp extension area. Upon determining that an obstacle exists within the ramp extension area, the control device causes a vehicle to move to a location in which no obstacle exists within the ramp extension area.
    Type: Grant
    Filed: December 28, 2020
    Date of Patent: July 4, 2023
    Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, AISIN SEIKI KABUSHIKI KAISHA
    Inventors: Hideki Maeda, Shunsuke Kanagai, Masaaki Tanaka, Isao Honda, Taiki Ishiguro, Tomoyuki Kato, Takeshi Nishikibe, Dai Hidaka
  • Patent number: 11668870
    Abstract: An optical communication device includes an excitation light source that outputs excitation light, a multiplexer that multiplexes signal light and the excitation light outputted from the excitation light source, a first nonlinear optical medium into which the multiplexed excitation light and the signal light are inputted, and a second nonlinear optical medium that is coupled to the first nonlinear optical medium in series and has an optical property different from that of the first nonlinear optical medium.
    Type: Grant
    Filed: February 4, 2020
    Date of Patent: June 6, 2023
    Assignee: FUJITSU LIMITED
    Inventor: Tomoyuki Kato
  • Patent number: 11613196
    Abstract: When it is confirmed that a user exists based on an image of the situation outside a vehicle which is captured using a camera and a proximity sensor detects a fact that the user is approaching based on, for example, a putting of a hand of the user over the proximity sensor, a control device causes a ramp to be extended. As such, a user sitting in a wheelchair can cause the ramp to be extended by approaching the proximity sensor, such as the putting of the user's hand over the proximity sensor such that the user sitting in the wheelchair does not have to press an extension/storage button provided on the vehicle to cause the ramp to be extended.
    Type: Grant
    Filed: February 8, 2021
    Date of Patent: March 28, 2023
    Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, AISIN SEIKI KABUSHIKI KAISHA
    Inventors: Takuya Tomioka, Hideki Maeda, Koichi Hirota, Taiki Ishiguro, Tomoyuki Kato, Takeshi Nishikibe
  • Patent number: 11588572
    Abstract: An optical transmission device includes a first wavelength multiplexer, a second wavelength multiplexer, a wavelength converter and a third wavelength multiplexer. The first wavelength multiplexer multiplexes optical signals in a first wavelength band to generate first wavelength multiplexed light. The second wavelength multiplexer multiplexes optical signals in the first wavelength band to generate second wavelength multiplexed light in a first polarization. The wavelength converter converts a wavelength of the second wavelength multiplexed light from the first wavelength band into a second wavelength band by a cross phase modulation among the second wavelength multiplexed light, first pump light in a second polarization and second pump light in the second polarization. The second polarization is orthogonal to the first polarization.
    Type: Grant
    Filed: November 1, 2021
    Date of Patent: February 21, 2023
    Assignee: FUJITSU LIMITED
    Inventors: Tomoyuki Kato, Shigeki Watanabe, Takeshi Hoshida
  • Patent number: 11533548
    Abstract: A transmission device including a demultiplexer configured to demultiplex a multiplexed light obtained by multiplexing the plurality of wavelength division multiplexing (WDM) optical signals including different wavelength bands into the plurality of WDM optical signals, a plurality of optical amplifiers configured to amplify the plurality of WDM optical signals, respectively, a wavelength converter configured to convert a first wavelength band of the wavelength bands of at least a first WDM optical signal of the plurality of WDM optical signals amplified by the plurality of optical amplifiers into a second wavelength band of the wavelength bands of a second WDM optical signal of the plurality of WDM optical signals so that the second wavelength band does not overlap among the wavelength bands, and a multiplexer configured to multiplex the plurality of WDM optical signals which include the wavelength bands converted by the wavelength converter.
    Type: Grant
    Filed: June 28, 2021
    Date of Patent: December 20, 2022
    Assignee: FUJITSU LIMITED
    Inventors: Tomohiro Yamauchi, Tomoyuki Kato, Shigeki Watanabe, Yu Tanaka, Takeshi Hoshida
  • Publication number: 20220371498
    Abstract: A vehicle slope apparatus includes a slope plate configured to be deployed at a lower end of a door opening portion, a guide rail extending in deployment and housing directions of the slope plate, a moving member configured to move along an extending direction of the guide rail, a support arm rotatably connected to a rear end of the slope plate and rotatably connected to the moving member, and a lift mechanism configured to lift the rear end of the slope plate by rotating the support arm in a state where the slope plate is deployed. The support arm is provided with a roller configured to hold a moving posture of the slope plate by being in sliding contact with the guide rail in a state where the slope plate is moved integrally with the moving member.
    Type: Application
    Filed: April 29, 2022
    Publication date: November 24, 2022
    Applicant: AISIN CORPORATION
    Inventors: Eisuke SATO, Tomoyuki KATO
  • Publication number: 20220371518
    Abstract: A vehicle slope apparatus includes a slope plate configured to be moved in a deployment direction so as to be deployed at a lower end of a door opening portion and configured to be moved in a housing direction so as to be housed in a housing portion provided in a vehicle body, and a position holding device configured to hold a position of the slope plate against an external force.
    Type: Application
    Filed: April 29, 2022
    Publication date: November 24, 2022
    Applicant: AISIN CORPORATION
    Inventors: Isao HONDA, Tomoyuki KATO, Yuta MURAKAMI, Masaki SUGIMOTO, Takanori SATO