Patents by Inventor Tomoaki Yoshida

Tomoaki Yoshida 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: 20220202015
    Abstract: Provided is a microbicide-containing aqueous composition having a superior effect of stabilizing 5-chloro-2-methyl-4-isothiazolin-3-one. This microbicide composition includes: (A) 5-chloro-2-methyl-4-isothiazolin-3-one; (B) 2,2,6,6-tetramethylpiperidin-1-oxyl; and (C) at least one solvent selected from the group consisting of water and a hydrophilic organic solvent.
    Type: Application
    Filed: June 2, 2020
    Publication date: June 30, 2022
    Applicant: CHEMICREA INC.
    Inventors: Takamasa YOSHIDA, Tomoaki NOGUCHI, Naoto TAGUCHI, Shingo KAJIYAMA
  • Publication number: 20220113732
    Abstract: Provided are an information processing apparatus and a mobile robot configured so that influence of a change in the posture of a mobile body can be reduced and the accuracy of measurement of a distance to a target object can be improved. A mobile robot 1 includes a control section 2 configured to drivably control each unit of a robot body 1A, a detection section 3 configured to detect a target object around the robot body 1A, and a mobile section 4 configured to move the robot body 1A. The detection section 3 includes first distance sensors 31 configured to detect distances to first positions P1 on a floor surface F in a movement direction D1 of the robot body 1A and second distance sensors 32 configured to detect distances to second positions P2.
    Type: Application
    Filed: September 25, 2018
    Publication date: April 14, 2022
    Inventors: Tomoaki YOSHIDA, Takayuki FURUTA, Hideaki YAMATO, Kiyoshi IRIE, Takaaki MATSUZAWA, Masaharu SHIMIZU
  • Publication number: 20220083067
    Abstract: A mobile robot 1 includes: a control means 2 for controlling the drive of each unit of a robot body 1A; a detection means 3 for detecting a target object around the robot body 1A; and a travel means 4 for moving the robot body 1A. The control means 2 determines a change in the environment by: obtaining two first measurement value groups S11 and S12 obtained by detecting the distances to different positions P1 and P2 in an environment at intervals of a predetermined time with the travel of the mobile robot 1; and processing the first measurement value groups, generating two second measurement value groups S21 and S22 according to the travel distance of the mobile robot 1, and comparing the generated second measurement value groups S21 and S22.
    Type: Application
    Filed: December 17, 2018
    Publication date: March 17, 2022
    Inventors: Tomoaki YOSHIDA, Takayuki FURUTA, Hideaki YAMATO, Kiyoshi IRIE, Takaaki MATSUZAWA, Masaharu SHIMIZU
  • Publication number: 20220055150
    Abstract: A laser welding device includes a chamber which has an internal space in which a workpiece is disposed, a laser beam irradiation unit which irradiates the workpiece with a laser beam to weld the workpiece, a vacuum pump which suctions air in the chamber to decrease a pressure in the chamber, a laser transmission window through which the laser beam emitted from the laser beam irradiation unit is transmitted, and a shutter which is disposed on the chamber side with respect to the laser transmission window and closed when the pressure in the chamber is returned to the atmospheric pressure after laser welding.
    Type: Application
    Filed: December 4, 2019
    Publication date: February 24, 2022
    Applicant: AISIN AW INDUSTRIES CO., LTD.
    Inventors: Kouji TAKEMOTO, Kazuyoshi MIYAMOTO, Tomoaki YOSHIDA, Daichi SUMIMORI, Hiroshi HASEGAWA
  • Publication number: 20220055151
    Abstract: The laser welding device includes a laser transmission window and a gas injection nozzle. The gas injection nozzle includes an optical path hole and an injection unit that injects an inert gas for shielding metal vapor into the optical path hole toward an irradiation direction (E) side and an optical axis (A) side of a laser beam (L).
    Type: Application
    Filed: December 4, 2019
    Publication date: February 24, 2022
    Applicant: AISIN AW INDUSTRIES CO., LTD.
    Inventors: Kouji TAKEMOTO, Kazuyoshi MIYAMOTO, Tomoaki YOSHIDA, Daichi SUMIMORI, Hiroshi HASEGAWA
  • Publication number: 20220023970
    Abstract: This laser welding device includes a tubular portion. The tubular portion includes a first tubular portion and a second tubular portion. The second tubular portion has a constant cross-sectional shape orthogonal to an irradiation direction along the irradiation direction E. The tubular portion has a predetermined length that is longer than a length of a chamber in the irradiation direction.
    Type: Application
    Filed: December 4, 2019
    Publication date: January 27, 2022
    Applicant: AISIN AW INDUSTRIES CO., LTD.
    Inventors: Kouji TAKEMOTO, Kazuyoshi MIYAMOTO, Tomoaki YOSHIDA, Daichi SUMIMORI, Hiroshi HASEGAWA
  • Publication number: 20210137342
    Abstract: Provided is a self-propelled vacuum configured so that obstacle avoidance operation can be efficiently performed and cleaning time can be shortened. A self-propelled vacuum 1 includes a laser range finder (LRF) 20 configured to sense the periphery of a vacuum body 2, and an up-down drive unit 22 configured to move the LRF 20 up and down between a protrusion position above the vacuum body 2 and a housing position in the vacuum body 2. The up-down drive unit 22 is driven to move the LRF 20 up and down.
    Type: Application
    Filed: June 7, 2017
    Publication date: May 13, 2021
    Inventors: Takayuki FURUTA, Masahiro TOMONO, Hideaki YAMATO, Tomoaki YOSHIDA, Masaharu SHIMIZU, Yu OKUMURA, Kengo TODA, Takashi KODACHI, Kiyoshi IRIE, Yoshitaka HARA, Kazuki OGIHARA
  • Publication number: 20200405110
    Abstract: An autonomous vacuum cleaner is provided which can clean efficiently around a vacuum cleaner body. An autonomous vacuum cleaner (1) includes a vacuum cleaner body (2) having a wheel (121) for travelling autonomously, a surroundings sensor (32) for detecting an obstacle around the vacuum cleaner body (2), a pivoting cleaner (3) that can clean around the vacuum cleaner body (2), and a controller (5) that controls the surroundings sensor (32) and the pivoting cleaner (3). The pivoting cleaner (3) includes an arm (21) that protrudes outward from the vacuum cleaner body (2), a motor (22) that drives the arm (21), and a load sensor (23) that detects a load acting on the arm (21) from the outside. The motor (22) is controlled and driven on the basis of the presence or absence of an obstacle detected by the surroundings sensor (32), and travel of the vacuum cleaner body (2) is controlled on the basis of a load detected by the load sensor (23).
    Type: Application
    Filed: September 4, 2017
    Publication date: December 31, 2020
    Inventors: Takayuki FURUTA, Masahiro TOMONO, Hideaki YAMATO, Tomoaki YOSHIDA, Masaharu SHIMIZU, Yu OKUMURA, Kengo TODA, Takashi KODACHI, Kiyoshi IRIE, Yoshitaka HARA, Kazuki OGIHARA
  • Publication number: 20200405115
    Abstract: An autonomous vacuum cleaner is provided which can promote reductions in size and load by simplifying the structure of a surrounding cleaning means. An autonomous vacuum cleaner (1) includes a vacuum cleaner body (2) having a wheel (121) for travelling autonomously, and a pivoting cleaner (3) that can vacuum and clean around the vacuum cleaner body (2). The pivoting cleaner (3) is configured including: an arm (21) that can pivot outward from the vacuum cleaner body (2); a vacuum inlet (74) that is provided to the arm (21) to suck up dirt and the like on the floor surface; a rotation support (61, 144) configured to rotatably support the arm (21) on the vacuum cleaner body (2); and a vacuum channel (66) that is provided along a rotation axis of the rotation support (61, 144) to cause the inside of the arm (21) and a sub-duct (143) to communicate with each other.
    Type: Application
    Filed: September 4, 2017
    Publication date: December 31, 2020
    Inventors: Takayuki FURUTA, Masahiro TOMONO, Hideaki YAMATO, Tomoaki YOSHIDA, Masaharu SHIMIZU, Yu OKUMURA, Kengo TODA, Takashi KODACHI, Kiyoshi IRIE, Yoshitaka HARA, Kazuki OGIHARA
  • Publication number: 20200345191
    Abstract: An autonomous vacuum cleaner is provided which allows a user to check the operating state of a vacuum cleaner body and a map to be created, and can increase cleaning efficiency. An autonomous vacuum cleaner (1) includes a vacuum cleaner body (2) and a mobile terminal (6). Whenever the vacuum cleaner body 2 acquires surrounding information and location information while travelling autonomously, a map creator (471) creates a map of a cleaning target space including the vacuum cleaner body (2) in real time, and a map display (61) of the mobile terminal (6) displays the map.
    Type: Application
    Filed: November 16, 2017
    Publication date: November 5, 2020
    Inventors: Takayuki FURUTA, Masahiro TOMONO, Hideaki YAMATO, Tomoaki YOSHIDA, Masaharu SHIMIZU, Yu OKUMURA, Kengo TODA, Takashi KODACHI, Kiyoshi IRIE, Yoshitaka HARA, Kazuki OGIHARA
  • Publication number: 20200275815
    Abstract: An autonomous vacuum cleaner that can reduce the footprint in a standby state is provided. An autonomous vacuum cleaner (1) includes a vacuum cleaner body (2) and a charging station (6). The charging station (6) has a hook (64) that latches a latched member (16) provided to a rear side of the vacuum cleaner body (2), and a lift driver (61) that raises and lowers the hook (64), and is configured to be capable of storing the vacuum cleaner body (2) in a standing state where the vacuum cleaner body (2) is hoisted and the rear side is oriented upward.
    Type: Application
    Filed: September 13, 2017
    Publication date: September 3, 2020
    Inventors: Takayuki FURUTA, Masahiro TOMONO, Hideaki YAMATO, Tomoaki YOSHIDA, Masaharu SHIMIZU, Yu OKUMURA, Kengo TODA, Takashi KODACHI, Kiyoshi IRIE, Yoshitaka HARA, Kazuki OGIHARA
  • Publication number: 20200245837
    Abstract: An autonomous vacuum cleaner is provided which can accurately acquire surrounding information related to target objects in the surroundings. An autonomous vacuum cleaner (1) includes: a vacuum cleaner body (2); a front sensor (31) configured to detect a target object at a far distance from the vacuum cleaner body (2); and a contact sensor (32) configured to detect a target object at a near distance from the vacuum cleaner body (2). A controller (5) is configured including a surrounding information generator (45) configured to generate surrounding information related to target objects around the vacuum cleaner body (2), on the basis of far information detected by the front sensor (31) and near information detected by the contact sensor (32).
    Type: Application
    Filed: October 13, 2017
    Publication date: August 6, 2020
    Inventors: Takayuki FURUTA, Masahiro TOMONO, Hideaki YAMATO, Tomoaki YOSHIDA, Masaharu SHIMIZU, Yu OKUMURA, Kengo TODA, Takashi KODACHI, Kiyoshi IRIE, Yoshitaka HARA, Kazuki OGIHARA
  • Publication number: 20200089249
    Abstract: Provided is a self-propelled vacuum configured so that depending on an obstacle, the self-propelled vacuum can move over the obstacle without performing avoidance operation to shorten cleaning time. A self-propelled vacuum 1 includes a vacuum body 2, a suction unit 5 for sucking dust and the like on a floor surface F, a traveling drive unit 4 configured to drive wheels 21, a front sensor 51 configured to sense an obstacle S in the front in a traveling direction, and a vehicle height adjustment unit 6 configured to move the wheels 21 up and down to adjust the vehicle height of the vacuum body 2. In a case where the traveling drive unit 4 is driven and the front sensor 51 senses the obstacle S during self-propelling, the vehicle height adjustment unit 6 increases the vehicle height to a predetermined height, and thereafter, the self-propelled vacuum 1 moves over the obstacle S while the vehicle height is being adjusted such that a distance to the obstacle S is held within a predetermined range.
    Type: Application
    Filed: June 7, 2017
    Publication date: March 19, 2020
    Inventors: Takayuki FURUTA, Masahiro TOMONO, Hideaki YAMATO, Tomoaki YOSHIDA, Masaharu SHIMIZU, Yu OKUMURA, Kengo TODA, Takashi KODACHI, Kiyoshi IRIE, Yoshitaka HARA, Kazuki OGIHARA
  • Patent number: 10361807
    Abstract: An OLT configures combinations of wavelength pairs used for upstream and downstream signals, in a wavelength multiplexing optical communication system which performs single-core bidirectional transmission of a plurality of upstream and downstream signals, in such a way that the maximum value of the chromatic dispersion delay amount calculated from each wavelength pair is less than the maximum value of the chromatic dispersion delay amounts calculated when the combinations of wavelength pairs used for upstream and downstream signals are both allocated from the short wave side.
    Type: Grant
    Filed: January 6, 2016
    Date of Patent: July 23, 2019
    Assignee: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Katsuhisa Taguchi, Tomoaki Yoshida, Kota Asaka, Shunji Kimura
  • Patent number: 10230485
    Abstract: In a case where a wavelength to be assigned to a subscriber-side device, to which a downstream wavelength has been assigned, is to be changed from the currently used (Source) downstream wavelength to a different changeover target (Target) downstream wavelength, a downstream wavelength changeover instruction message that indicates the change target wavelength is generated. In a case where a wavelength to be assigned to the subscriber-side device, to which an upstream wavelength has been assigned, is to be changed from the currently used (Source) upstream wavelength to a different changeover target (Target) upstream wavelength, an upstream wavelength changeover instruction message that indicates the change target wavelength is generated. The downstream wavelength changeover instruction message and the upstream wavelength changeover instruction message are respectively independently generated, and only the wavelength for which the wavelength changeover instruction message was generated is changed.
    Type: Grant
    Filed: April 20, 2016
    Date of Patent: March 12, 2019
    Assignee: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Tomoaki Yoshida, Kota Asaka, Shunji Kimura
  • Patent number: 10211945
    Abstract: A station-side device of the present invention includes: a wavelength change instruction unit that issues, to a subscriber-side device, a wavelength change instruction to change a transfer-source wavelength assigned to the subscriber-side device to a transfer-target wavelength different from the transfer-source wavelength; a transfer-source port that transmits and receives an optical signal of the transfer-source wavelength; a transfer-target port that transmits and receives an optical signal of the transfer-target wavelength; a transfer-source port monitoring unit that detects a connection between the transfer-source port and the subscriber-side device; a transfer-target port monitoring unit that detects a connection between the transfer-target port and the subscriber-side device; a transfer-source timer that counts, at the transfer-source port, an elapsed time from a predetermined starting time in response to the wavelength change instruction, and ends the counting of the elapsed time in a case where change
    Type: Grant
    Filed: April 20, 2016
    Date of Patent: February 19, 2019
    Assignee: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventor: Tomoaki Yoshida
  • Patent number: 10211944
    Abstract: A station-side device performs transmission and reception of an optical signal to and from a subscriber-side device, and includes a communication control unit configured to perform optical signal communication using a plurality of wavelengths by wavelength division multiplexing and time division multiplexing; and a registration unit configured to set an acceptance period in at least one wavelength among the plurality of wavelengths, to perform a new registration of a subscriber-side device in response to a registration request of the subscriber-side device received within the acceptance period, and not to set the acceptance period in at least one other wavelength among the plurality of wavelengths.
    Type: Grant
    Filed: May 24, 2016
    Date of Patent: February 19, 2019
    Assignee: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Tomoaki Yoshida, Shigeru Kuwano
  • Publication number: 20180351685
    Abstract: An OLT configures combinations of wavelength pairs used for upstream and downstream signals, in a wavelength multiplexing optical communication system which performs single-core bidirectional transmission of a plurality of upstream and downstream signals, in such a way that the maximum value of the chromatic dispersion delay amount calculated from each wavelength pair is less than the maximum value of the chromatic dispersion delay amounts calculated when the combinations of wavelength pairs used for upstream and downstream signals are both allocated from the short wave side.
    Type: Application
    Filed: January 6, 2016
    Publication date: December 6, 2018
    Inventors: Katsuhisa Taguchi, Tomoaki Yoshida, Kota Asaka, Shunji Kimura
  • Patent number: 10009137
    Abstract: An optical communication system of the present invention switches a communication wavelength from a current communication wavelength to a auxiliary communication wavelength when an abnormality occurs in a communication wavelength between a station-side device and any one of a plurality of subscriber devices. Further, this optical communication system switches a communication wavelength used for communication between the subscriber device and the station-side device that perform communication using the auxiliary communication wavelength from the auxiliary communication wavelength back to the current communication wavelength when communication is recovered from an abnormality in the current communication wavelength.
    Type: Grant
    Filed: July 23, 2015
    Date of Patent: June 26, 2018
    Assignee: Nippon Telegraph And Telephone Corporation
    Inventors: Tomoaki Yoshida, Shin Kaneko, Shunji Kimura
  • Publication number: 20180145788
    Abstract: A station-side device performs transmission and reception of an optical signal to and from a subscriber-side device, and includes a communication control unit configured to perform optical signal communication using a plurality of wavelengths by wavelength division multiplexing and time division multiplexing; and a registration unit configured to set an acceptance period in at least one wavelength among the plurality of wavelengths, to perform a new registration of a subscriber-side device in response to a registration request of the subscriber-side device received within the acceptance period, and not to set the acceptance period in at least one other wavelength among the plurality of wavelengths.
    Type: Application
    Filed: May 24, 2016
    Publication date: May 24, 2018
    Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Tomoaki YOSHIDA, Shigeru KUWANO