Patents by Inventor Ryo Koyama

Ryo 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: 11958465
    Abstract: The vehicle control system includes a braking force generating device (6, 22) configured to generate a braking force to shift a load of a vehicle to a side of front wheels thereof at an initial stage of a cornering, and a control device (31) configured to control the braking force generated by the braking force generating device. The control device calculates an additional deceleration (Gxadd) according to vehicle state information, calculates a lateral jerk equivalent value (Jy) according to the vehicle state information, and sets a lateral jerk correction coefficient (Kj) for weakening the additional deceleration. The control device corrects the additional deceleration by the lateral jerk correction coefficient (K), and calculates an additional braking force (Fbadd) to be generated by the braking force generating device according to the corrected additional deceleration.
    Type: Grant
    Filed: February 21, 2022
    Date of Patent: April 16, 2024
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Naoto Okubo, Shigeru Doi, Ryo Koyama
  • Publication number: 20240085847
    Abstract: An image forming apparatus includes plural image holding bodies that are provided for respective colors of toners and hold toner images having the respective colors, an intermediate transfer body onto which the toner images having the respective colors held by the plural image holding bodies are transferred, a waste toner collection unit that collects toners remaining on the intermediate transfer body as a waste toner in a case where the toner images having the respective colors transferred onto the intermediate transfer body are transferred onto a recording material, a waste toner developing unit that uses the waste toner collected by the waste toner collection unit to develop a toner image on an image holding body of the plural image holding bodies or the other image holding body of the plural image holding bodies, and a control unit that performs a control to cause the waste toner developing unit to develop the toner image in a case where a predetermined condition about a ratio of a waste toner having each
    Type: Application
    Filed: March 23, 2023
    Publication date: March 14, 2024
    Applicant: FUJIFILM Business Innovation Corp.
    Inventors: Tatsuya KOYAMA, Ryo WAKAMATSU, Kenta TSUKAHIRA, Kenji SUZUKI, Kazutaka SHIBANO, Daiki KATO, Naoyuki KURITA
  • Publication number: 20240042979
    Abstract: A vehicle control device includes an information acquirer that acquires information on driving conditions of a vehicle at least containing a steering angle and a vehicle speed, a distribution amount setter that sets a distribution amount of a brake force to each of multiple wheels provided in the vehicle based on the driving conditions of the vehicle; and a brake controller that performs brake control of each of the multiple wheels according to the distribution amount set by the distribution amount setter. The distribution amount setter sets the distribution amount to zero when the steering angle SA is less than a first steering angle threshold where the steering angle SA is recognizable as a substantially neutral state.
    Type: Application
    Filed: August 4, 2023
    Publication date: February 8, 2024
    Inventors: Kentaro KASUYA, Ryo KOYAMA, Tomohiro HOSONO
  • Publication number: 20240042980
    Abstract: A vehicle control device includes an information acquirer that acquires information on driving conditions of a vehicle at least containing a steering angle and a vehicle speed, a distribution amount setter that sets a distribution amount of a brake force to each of multiple wheels provided in the vehicle based on the driving conditions of the vehicle; and a brake controller that performs brake control of each of the multiple wheels according to the distribution amount set by the distribution amount setter. When the vehicle speed is equal to or lower than a 22nd vehicle speed value within a low vehicle speed range, the distribution amount setter sets the distribution amount of a brake force to each of the multiple wheels including a specific wheel to a value which is smaller than a distribution amount when the vehicle speed exceeds the 22nd vehicle speed value.
    Type: Application
    Filed: August 4, 2023
    Publication date: February 8, 2024
    Inventors: Kentaro KASUYA, Ryo KOYAMA, Tomohiro HOSONO
  • Publication number: 20240044557
    Abstract: A heat transfer tube as a first refrigerant pipe has a first portion, a first expansion portion, a second portion, a second expansion portion, and a third portion arranged in order. A connecting tube as a second refrigerant pipe has a fourth portion facing the second portion and a fifth portion facing the third portion. The connecting tube is inserted into the heat transfer tube. The inner diameter of the second portion is larger than the inner diameter of the first portion, and the inner diameter of the third portion is larger than the inner diameter of the second portion. The outer diameter of the fifth portion is larger than the outer diameter of the fourth portion. The fifth portion and the third portion are brazed.
    Type: Application
    Filed: October 23, 2023
    Publication date: February 8, 2024
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Hiroyuki NAKANO, Atsushi YAMAMOTO, Shouta AGOU, Ryo KOYAMA
  • Publication number: 20240045152
    Abstract: The present disclosure has an object to provide a multicore optical connector that can achieve size reduction and pitch reduction without performing highly accurate machining of V-grooves or the like. The present disclosure is a multicore optical connector including a holding member 11 having a flat bottom surface 14B, and provided with a groove that enables a plurality of optical fibers 91 to be arranged along the bottom surface 14B, the plurality of optical fibers 91 stored in a row on the bottom surface of the groove, and a lid 15 that is in contact with all the plurality of optical fibers 91 and is fixed to the plurality of optical fibers 91 and the holding member 11 in a state in which the plurality of optical fibers 91 are pressed against the bottom surface 14B of the groove to form a long hole 12 at the groove 14.
    Type: Application
    Filed: September 10, 2020
    Publication date: February 8, 2024
    Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Yasunari TANAKA, Ryo KOYAMA, Masaaki TAKAYA, Yoshiteru ABE, Chisato FUKAI
  • Publication number: 20240042981
    Abstract: A vehicle control device includes an information acquirer that acquires information on driving conditions of a vehicle at least containing a steering angle and a vehicle speed; a brake force setter that sets a brake force to each of a plurality of wheels provided in the vehicle based on the driving conditions of the vehicle; and a brake controller that performs brake control for each of the plurality of wheels using the brake force set by the brake force setter, wherein the brake force setter remains the first brake force for the first specific wheel during a turn-over operation while the turn-over operation is performed from the one side steering position through a neutral position to other side steering position.
    Type: Application
    Filed: August 4, 2023
    Publication date: February 8, 2024
    Inventors: Kentaro KASUYA, Ryo KOYAMA, Tomohiro HOSONO
  • Publication number: 20240027692
    Abstract: An object is to provide an optical connector cleaning tool capable of simultaneously and appropriately cleaning an end surface and a side surface of a ferrule of an optical connector plug. The optical connector cleaning tool according to the present invention includes an end surface cleaning section including a cleaning sheet for cleaning a ferrule end surface of an optical connector plug, a side surface cleaning section including a cleaning thread bundle (or cleaning sheet) for cleaning a ferrule side surface of the optical connector plug, and a mechanism that reveals a new cleaning sheet and a new cleaning thread bundle (or cleaning sheet) at a predetermined position after each cleaning operation.
    Type: Application
    Filed: January 10, 2020
    Publication date: January 25, 2024
    Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Chisato FUKAI, Kazunori KATAYAMA, Masaaki TAKAYA, Yoshiteru ABE, Ryo KOYAMA
  • Publication number: 20230391317
    Abstract: Disclosed is a vehicle turning control device, which includes an operation state detection device, a vehicle speed detection device, and a target yaw moment calculation device. In the target yaw moment calculation device, the yaw moment of inertia calculation means calculates the yaw moment of inertia based on the vehicle speed when the vehicle turns. The yaw damping calculation means calculates yaw damping based on the vehicle speed when the vehicle turns. The lateral deviation angular velocity calculation means calculates the lateral deviation angular velocity based on the yaw moment of inertia and yaw damping. The target yaw moment calculation means calculates a target yaw moment of the vehicle based on the lateral deviation angular velocity. The yaw moment of inertia calculation means calculates the yaw moment of inertia based on the first correction amount. The yaw damping calculation means calculates yaw damping based on the second correction amount.
    Type: Application
    Filed: April 12, 2023
    Publication date: December 7, 2023
    Applicant: Honda Motor Co., Ltd.
    Inventors: Naoto OKUBO, Ryo KOYAMA
  • Publication number: 20230333329
    Abstract: An object of the present disclosure is to reduce the size and pitch of a multi-core optical connector which connects a planar waveguide in which a multi-channel core is disposed or a plurality of optical fibers to the plurality of optical fibers. According to the present disclosure, there is provided a multi-core optical connector which connects a plurality of cores disposed in a row and a plurality of optical fibers, in which the multi-core optical connector includes a holding unit which holds the plurality of cores and the plurality of optical fibers, the holding unit includes an elongated hole in which the plurality of optical fibers are disposed in a row, and the plurality of optical fibers and the plurality of cores are connected inside the elongated hole.
    Type: Application
    Filed: September 11, 2020
    Publication date: October 19, 2023
    Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Yasunari TANAKA, Ryo KOYAMA
  • Publication number: 20230314715
    Abstract: An object of the present disclosure is to provide an optical coupling device capable of controlling a coupling rate of optical coupling between two coupling optical fibers. An optical coupling device of the present disclosure includes two coupling optical fibers each including a core and a clad and, between the two coupling optical fibers, a thickness variable member having a thickness between the two coupling optical fibers that varies by irradiation with light.
    Type: Application
    Filed: August 7, 2020
    Publication date: October 5, 2023
    Inventors: Tatsuya Fujimoto, Hidenobu HIROTA, Takui UEMATSU, Tomohiro Kawano, Hiroyuki IIDA, Ryo Koyama, Tetsuya MANABE, Kazunori Katayama
  • Publication number: 20230318703
    Abstract: For an optical monitor device that detects the intensity of light propagating through an optical fiber, a reduction in size and cost of the optical monitor device are to be achieved.
    Type: Application
    Filed: June 2, 2020
    Publication date: October 5, 2023
    Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Ryo KOYAMA, Masaaki TAKAYA, Yoshiteru ABE
  • Publication number: 20230280536
    Abstract: An object of the present disclosure is to provide an optical coupling device capable of controlling a coupling index of optical coupling between two optical fibers for coupling. An optical coupling device of the present disclosure includes two optical fibers for coupling having a core and a clad, and a refractive index variable member to change the refractive index by irradiation with light between the two optical fibers for coupling.
    Type: Application
    Filed: July 21, 2020
    Publication date: September 7, 2023
    Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Tatsuya FUJIMOTO, Hidenobu HIROTA, Takui UEMATSU, Tomohiro KAWANO, Hiroyuki IIDA, Ryo KOYAMA, Tetsuya MANABE, Kazunori KATAYAMA
  • Publication number: 20230280761
    Abstract: Provided is a robot stop position setting device that sets a stop position of a robot, including a map storage unit for storing map information, a stop position storage unit for storing a robot stop position, a reference position output unit that outputs a reference position for calculating the robot stop position, and a stop position calculation unit that calculates the robot stop position based on the reference position
    Type: Application
    Filed: February 22, 2023
    Publication date: September 7, 2023
    Inventors: Ryo KOYAMA, Nobutaka KIMURA
  • Patent number: 11740414
    Abstract: An object is to provide a multifiber optical connector and an optical cable connection method capable of reducing a connection time and reducing an installation space of a connection portion. The multifiber optical connector according to the present invention includes three position adjustment units, and performs rough alignment to fine alignment of optical fiber end faces by using sequentially these position adjustment units when optical cables are connected. The multifiber optical connector simultaneously connects the end faces of the plurality of optical fibers included in the optical cables, and thus, an extra optical fiber tape is not present, and a closure needed in the related art is not necessary.
    Type: Grant
    Filed: October 9, 2019
    Date of Patent: August 29, 2023
    Assignee: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Masaaki Takaya, Kazunori Katayama, Yoshiteru Abe, Ryo Koyama, Chisato Fukai, Yusuke Yamada
  • Patent number: 11644627
    Abstract: An object is to provide an optical connector cleaning tool capable of cleaning both an end face and a side face of a ferrule of an optical connector plug simultaneously and simply and a method of cleaning an optical connector in such a manner. An optical connector cleaning tool according to the present invention includes superimposing a plurality of cleaning sheets on each other, the cleaning sheets each including a plurality of cleaning strings arranged so as to be parallel to each other in a sheet shape, such that orientations of the cleaning strings included in the respective cleaning sheets differ from each other, pressing an end face of a ferrule of an optical connector plug against the cleaning sheets to clean the end face of the ferrule, and subsequently, sticking the ferrule through the cleaning sheets to clean a side face of the ferrule.
    Type: Grant
    Filed: September 25, 2019
    Date of Patent: May 9, 2023
    Assignee: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Chisato Fukai, Masaaki Takaya, Yoshiteru Abe, Ryo Koyama
  • Patent number: 11543612
    Abstract: To provide a connector plug that makes it possible to facilitate a plurality of persons' confirmation of a connector plug before its removal or after its insertion and to prevent erroneous work. The connector plug according to the present invention has a discoloration member mounted on a gripping portion for pinching during work. The color of the discoloration member changes due to heat of a worker's fingertips when the worker pinches the connector plug or pressure when the worker pinches the connector plug. The discoloration member is discolored by one worker pinching the connector plug. Another worker looks at the discolored discoloration member, and then is able to confirm whether the connector plug is a work target.
    Type: Grant
    Filed: October 9, 2019
    Date of Patent: January 3, 2023
    Assignee: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Masaaki Takaya, Yoshiteru Abe, Ryo Koyama, Chisato Fukai, Kazunori Katayama
  • Patent number: 11474303
    Abstract: An object is to provide an optical fiber connector ferrule, a sleeve, and a method for manufacturing a ferrule member that can avoid an increase in manufacturing time and an increase in cost of optical connectors for connecting multicore optical fibers. The present invention provides an optical fiber connector ferrule, a sleeve, and a method for manufacturing ferrule member which realizes alignment of multicore optical fibers corresponding to the connection by mounting a ferrule on a multicore fiber and then cutting a ferrule member instead of aligning core positions by rotating an axis of an optical fiber and adjusting positions of cores to the ferrule, leading to simplification of a rotational alignment step.
    Type: Grant
    Filed: September 11, 2019
    Date of Patent: October 18, 2022
    Assignee: Nippon Telegraph and Telephone Corporation
    Inventors: Masaaki Takaya, Yoshiteru Abe, Ryo Koyama, Chisato Fukai, Kazunori Katayama, Kazuhide Nakajima, Yusuke Yamada
  • Publication number: 20220306062
    Abstract: The vehicle control system includes a braking force generating device (6, 22) configured to generate a braking force to shift a load of a vehicle to a side of front wheels thereof at an initial stage of a cornering, and a control device (31) configured to control the braking force generated by the braking force generating device. The control device calculates an additional deceleration (Gxadd) according to vehicle state information, calculates a lateral jerk equivalent value (Jy) according to the vehicle state information, and sets a lateral jerk correction coefficient (Kj) for weakening the additional deceleration. The control device corrects the additional deceleration by the lateral jerk correction coefficient (K), and calculates an additional braking force (Fbadd) to be generated by the braking force generating device according to the corrected additional deceleration.
    Type: Application
    Filed: February 21, 2022
    Publication date: September 29, 2022
    Inventors: Naoto OKUBO, Shigeru DOI, Ryo KOYAMA
  • Publication number: 20220247624
    Abstract: Methods, systems, and computer program products for managing Internet of Things (IoT) network-connected devices.
    Type: Application
    Filed: April 13, 2022
    Publication date: August 4, 2022
    Inventors: Michael W. Johnson, Ryo Koyama, Michael John Sebastian Smith