Patents by Inventor Hiroki Seki

Hiroki Seki 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: 20240422456
    Abstract: A wavelength cross connect device includes: a wavelength band switching unit configured to receive wavelength multiplexed signal beams each having been transmitted in multiple bands in optical transmission lines each including one or more optical fibers, the wavelength multiplexed signal beams each including multiplexed optical signals of distinct wavelength bands, perform wavelength band conversion on each of the wavelength multiplexed signal beams so as to convert the wavelength bands of the optical signals multiplexed in the wavelength multiplexed signal beam, and output the converted wavelength multiplexed signal beams; and a WXC unit including input-side WSSes that respectively split and output the wavelength multiplexed signal beams output from the wavelength band switching unit, and output-side WSSes mesh-connected to the input-side WSSes.
    Type: Application
    Filed: June 7, 2021
    Publication date: December 19, 2024
    Inventors: Masahiro NAKAGAWA, Hiroki KAWAHARA, Takeshi SEKI
  • Publication number: 20240408899
    Abstract: A dryer includes: a conveyor belt having a shape of an endless loop to convey a sheet in a conveyance direction; a drying unit facing an absorption surface of the conveyor belt to dry the sheet on the absorption surface; and an absorber including multiple suction members inside the endless loop of the conveyor belt, the suction members arrayed in the conveyance direction to absorb the sheet onto the absorption surface of the conveyor belt, and at least one suction member of the multiple suction members to generate a suction force different from suction forces of other suction members.
    Type: Application
    Filed: June 4, 2024
    Publication date: December 12, 2024
    Inventors: Ryusaku HIDA, Kohki ASADA, Kazuaki KAMIHARA, Kenji NOZAWA, Genichiroh KAWAMICHI, Takayuki SEKI, Hiroki ISHIHARA, Takehiro NAKAMURA
  • Publication number: 20240373152
    Abstract: A wavelength cross connect device includes: a WXC unit including input-side WSSes and Output-side WSSes; and a wavelength band switching unit. Of wavelength multiplexed signal beams N-split by each input-side WSS, wavelength multiplexed signal beams in which optical signals for which wavelength band conversion is not necessary are multiplexed are input to the output-side WSSes. The wavelength band switching unit performs wavelength band conversion on, of the N-split wavelength multiplexed signal beams, a selected wavelength multiplexed signal beam in which optical signals for which wavelength band conversion is necessary are multiplexed, to generate a wavelength-band-converted wavelength multiplexed signal beam in which the wavelength bands of optical signals of distinct wavelength bands multiplexed in the wavelength multiplexed signal beam have been converted, and outputs the wavelength-band-converted wavelength multiplexed signal beam to one of the output-side WSSes so as to be rerouted.
    Type: Application
    Filed: June 7, 2021
    Publication date: November 7, 2024
    Inventors: Hiroki KAWAHARA, Masahiro NAKAGAWA, Takeshi SEKI
  • Publication number: 20240351351
    Abstract: A heating device includes a heater and a cover to cover the heater. In the heating device, the cover includes a first cover disposed in a first direction of the heater and a second cover disposed in the first direction, and the second cover is adjacent to the first cover. In the heating device, the first cover and the second cover have a gap in between, and the gap has a length greater than an amount of thermal deformation of either one of the first cover or the second cover or a total amount of thermal deformation of the first cover and the second cover.
    Type: Application
    Filed: April 19, 2024
    Publication date: October 24, 2024
    Applicant: Ricoh Company Ltd.
    Inventors: Takayuki SEKI, Kenji NOZAWA, Kohki ASADA, Genichiroh KAWAMICHI, Takehiro NAKAMURA, Hiroki ISHIHARA
  • Publication number: 20240283557
    Abstract: A wavelength cross-connect device includes a first conversion module that converts a first wavelength band (S-band) shorter than a specific wavelength band (C-band) into an optical signal of the specific wavelength band and converts the specific wavelength band from a WXC unit into an optical signal of a second wavelength band (L-band) longer than the specific wavelength band, among the respective wavelength bands demultiplexed by a demultiplexing unit and a second conversion module that converts the second wavelength band into an optical signal of the specific wavelength band and converts the specific wavelength band from the WXC unit into an optical signal of the first wavelength band. The optical signal of the specific wavelength band converted by the first/second conversion unit is output to the WXC unit, and the optical signal of the first/second wavelength band is output to a multiplexing unit.
    Type: Application
    Filed: June 7, 2021
    Publication date: August 22, 2024
    Inventors: Masahiro NAKAGAWA, Hiroki KAWAHARA, Takeshi SEKI
  • Publication number: 20240284079
    Abstract: A wavelength cross connect device includes: a plurality of input-side WSSes each configured to split a wavelength multiplexed signal beam into a predetermined number of wavelength multiplexed signal beams; a plurality of wavelength band switch processing units provided for each of the input-side WSSes and each configured to convert optical signals of distinct wavelength bands multiplexed in a corresponding one of the predetermined number of wavelength multiplexed signal beams each from one wavelength band to another within the distinct wavelength bands, to generate a wavelength-band-converted wavelength multiplexed signal beam; and a plurality of output-side WSSes mesh-connected to the plurality of input-side WSSes and each configured to, for each mesh-connected input-side WSS, receive the wavelength-band-converted wavelength multiplexed signal beam generated by each wavelength band switch processing unit and one of the split predetermined number of wavelength multiplexed signal beams.
    Type: Application
    Filed: June 7, 2021
    Publication date: August 22, 2024
    Inventors: Masahiro NAKAGAWA, Hiroki KAWAHARA, Takeshi SEKI
  • Patent number: 12066533
    Abstract: An object detection system includes distance measurement sensors and a hardware processor functioning as a wave transmission control circuit and a determination circuit. The distance measurement sensors provided at different positions in a vehicle. The wave transmission control circuit sets one of the distance measurement sensors as a top of a wave transmission order. A detection range of the one of the distance measurement sensors covers a region where an object is located. The object has been detected through preliminary detection when power supply to the vehicle is started. The wave transmission control circuit then repeats a cyclic wave transmission control on the distance measurement sensors to emit ultrasonic waves sequentially in the wave transmission order. The determination circuit determines an object as a detection target object when any one of the distance measurement sensors has detected the object a predetermined number of times.
    Type: Grant
    Filed: June 7, 2022
    Date of Patent: August 20, 2024
    Assignee: PANASONIC AUTOMOTIVE SYSTEMS CO., LTD.
    Inventors: Hiroki Yamashita, Atsushi Seki
  • Publication number: 20240216930
    Abstract: There is provided a shower device that allows a user to continue to take a shower in a relaxed state for a long time. The present invention provides a shower device (1) fixed to enable a user to be showered from above with shower spouting water, the shower device comprising: a shower head main body (4), and a plurality of nozzle units (10) provided in the shower head main body at intervals so as to form the shower spouting water surrounding a head of the user standing below the shower head main body, in which each nozzle unit is configured so that the spouted hot water falls while spreading downward.
    Type: Application
    Filed: December 13, 2023
    Publication date: July 4, 2024
    Applicant: TOTO LTD.
    Inventors: Ryohei YAITA, Takahiro NAKASHIMA, Hiroki SEKI, Zuhe CHEN, Takehiro YAMORI
  • Publication number: 20240191698
    Abstract: This system, for performing maintenance of at least one part of an object, is provided with: at least one rope holding device which is configured to move up to said at least one part of said object and to hold at least one rope at said at least one part of said object; and a maintenance device which, configured to perform the maintenance of said at least one part of said object, is configured to move on the aforementioned at least one rope, held by the at least one rope holding device, to said at least one part of said object and to move on said at least one part of said object.
    Type: Application
    Filed: March 18, 2022
    Publication date: June 13, 2024
    Applicant: LEBO ROBOTICS, INC.
    Inventors: Keitaro HAMAMURA, Masayuki MURAKAMI, Yuichi SUGIYAMA, Hiroki SEKI, Hiroto KAWABATA, Toshinobu TAKEI
  • Publication number: 20150026752
    Abstract: Provided is an information processing method performed by an information processing device that includes an information acquisition unit configured to acquire, from a server connected via a network, information prepared for each service provided via a network, the information being setting information representing a setting relevant to a function of an application used in utilization of the service, and an application control unit configured to control activation of the application in accordance with the setting represented by the acquired setting information, the information processing method including acquiring, from the server connected via the network, information prepared for each service provided via the network, the information being setting information representing a setting relevant to a function of an application used in utilization of the service, and controlling activation of the application in accordance with the setting represented by the acquired setting information.
    Type: Application
    Filed: March 4, 2013
    Publication date: January 22, 2015
    Applicant: Sony Corporation
    Inventor: Hiroki Seki