Patents by Inventor Hiroshi Nakagawa

Hiroshi Nakagawa 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: 20240129034
    Abstract: A forward Raman amplifier includes a plurality of pumping light sources with different wavelengths and the forward Raman amplifier, according to a fiber type or a zero-dispersion wavelength of the fiber, changes the number of pumping light sources to be emitted, changes a power ratio between the plurality of pumping light sources with the different wavelengths or changes wavelength characteristics of a gain, according to a fiber type.
    Type: Application
    Filed: July 12, 2023
    Publication date: April 18, 2024
    Applicant: Fujitsu Limited
    Inventors: Hiroshi NAKAMOTO, GOJI NAKAGAWA, Kentaro KAWANISHI, Hiroki OI, Tomohiro YAMAUCHI, Takafumi TERAHARA, Teppei OHATA
  • Patent number: 11949810
    Abstract: A communication apparatus includes a motion sensor, a communication device, and a control device. The motion sensor detects a gesture of a user. The communication device makes communication with a terminal device on another end, through a predetermined communication network. The control device acts as a controller. The controller causes the communication device to dispatch a call to the terminal device, when the motion sensor detects a prespecified gesture, in a state where a predetermined condition is satisfied.
    Type: Grant
    Filed: February 3, 2022
    Date of Patent: April 2, 2024
    Assignee: KYOCERA Document Solutions Inc.
    Inventor: Hiroshi Nakagawa
  • Publication number: 20240051131
    Abstract: A gap detection device includes: a measurement unit measuring the driving torque or current value of a motor when the robot is actually being operated along an arbitrary motion trajectory; a simulation unit setting an arbitrary second gap amount between pairing elements of a plurality of pairing elements, performing a simulation in which the robot operates along the same arbitrary motion trajectory, and estimating the driving torque or the current value of the motor; a feature amount calculation unit calculating a first feature amount indicating fluctuations of a value related to the measured driving torque or current value, and a second feature amount indicating fluctuations of a value related to the estimated driving torque or current value; and a gap calculation unit calculating an index related to a first gap amount on the basis of the first feature amount, the second feature amount, and the second gap amount.
    Type: Application
    Filed: January 12, 2022
    Publication date: February 15, 2024
    Inventors: Hiroshi NAKAGAWA, Kenichiro ABE, Hideo MATSUI, Tomoaki NAGAYAMA, Yukio TAKEDA, Masumi OHNO
  • Patent number: 11808173
    Abstract: A scroll passage of a turbine housing includes: an outer peripheral surface extending along an axial direction of the turbine housing; an inner peripheral surface disposed inward of the outer peripheral surface; a one-side surface extending along the radial direction; an other-side surface disposed closer to an outlet of the housing; a one-side outer peripheral R portion connecting the one-side surface and the outer peripheral surface; an other-side outer peripheral R portion connecting the other-side surface and the outer peripheral surface; and an other-side inner peripheral R portion connecting the other-side surface and the inner peripheral surface. A ratio of a width dimension of the scroll passage to an R dimension of each portion is defined as a peripheral R ratio, and the peripheral R ratio has an R ratio increasing region the ratio increases from upstream to downstream in the scroll passage.
    Type: Grant
    Filed: January 7, 2020
    Date of Patent: November 7, 2023
    Assignee: MITSUBISHI HEAVY INDUSTRIES ENGINE & TURBOCHARGER, LTD.
    Inventors: Toru Hoshi, Hiroshi Nakagawa, Shunsuke Miyoshi, Kenji Nitta, Sosuke Irie
  • Patent number: 11802178
    Abstract: A liquid crystal polyester resin for laminate, wherein, in a molecular weight distribution of an absolute molecular weight measured by a gel permeation chromatograph/light scattering method, an area fraction of a portion having an absolute molecular weight of 10,000 or less is 10 to 40%, and an area fraction of a portion having an absolute molecular weight of 50,000 or more is 3 to 20%, relative to 100% of the total peak area.
    Type: Grant
    Filed: August 1, 2019
    Date of Patent: October 31, 2023
    Assignee: Toray Industries, Inc.
    Inventors: Akito Konishi, Hiroshi Nakagawa, Hideyuki Umetsu
  • Publication number: 20230341025
    Abstract: A balancer device includes a housing including a tubular body section and also including a front end plate and a rear end plate that block opposite ends of the body section in a direction of an axis; a rod that extends through the front end plate in a thickness direction thereof and that is supported such as to be movable in the direction of the axis; a movable member that is fixed to the rod and that is accommodated within the housing; a compression coil spring that is disposed between the movable member and the rear end plate; and a coupling member that couples the rod and the rear end plate to each other with play that is larger than a stroke of the rod in the direction of the axis.
    Type: Application
    Filed: September 24, 2021
    Publication date: October 26, 2023
    Inventors: Toshinori OHASHI, Masakazu FURUTA, Hiroshi NAKAGAWA
  • Publication number: 20230321837
    Abstract: A machine learning device that learns an operation of a robot for picking up, by a hand unit, any of a plurality of workpieces placed in a random fashion, including a bulk-loaded state, includes a state variable observation unit that observes a state variable representing a state of the robot, including data output from a three-dimensional measuring device that obtains a three-dimensional map for each workpiece, an operation result obtaining unit that obtains a result of a picking operation of the robot for picking up the workpiece by the hand unit, and a learning unit that learns a manipulated variable including command data for commanding the robot to perform the picking operation of the workpiece, in association with the state variable of the robot and the result of the picking operation, upon receiving output from the state variable observation unit and output from the operation result obtaining unit.
    Type: Application
    Filed: June 14, 2023
    Publication date: October 12, 2023
    Inventors: Takashi YAMAZAKI, Takumi OYAMA, Shun SUYAMA, Kazutaka NAKAYAMA, Hidetoshi KUMIYA, Hiroshi NAKAGAWA, Daisuke OKANOHARA, Ryosuke OKUTA, Eiichi MATSUMOTO, Keigo KAWAAI
  • Patent number: 11780095
    Abstract: A machine learning device that learns an operation of a robot for picking up, by a hand unit, any of a plurality of objects placed in a random fashion, including a bulk-loaded state, includes a state variable observation unit that observes a state variable representing a state of the robot, including data output from a three-dimensional measuring device that obtains a three-dimensional map for each object, an operation result obtaining unit that obtains a result of a picking operation of the robot for picking up the object by the hand unit, and a learning unit that learns a manipulated variable including command data for commanding the robot to perform the picking operation of the object, in association with the state variable of the robot and the result of the picking operation, upon receiving output from the state variable observation unit and output from the operation result obtaining unit.
    Type: Grant
    Filed: April 28, 2020
    Date of Patent: October 10, 2023
    Assignees: FANUC CORPORATION, PREFERRED NETWORKS, INC.
    Inventors: Takashi Yamazaki, Takumi Oyama, Shun Suyama, Kazutaka Nakayama, Hidetoshi Kumiya, Hiroshi Nakagawa, Daisuke Okanohara, Ryosuke Okuta, Eiichi Matsumoto, Keigo Kawaai
  • Patent number: 11763441
    Abstract: The accuracy of an index indicating growth conditions of a crop obtained from a shot image is improved, while reducing the flight time of an aircraft shooting the crop. Crop image acquisition unit acquires an image of a crop region shot by drone. Index calculation unit calculates an index indicating growth conditions of a crop shot in the image based on the acquired image of the crop region. Flight instruction unit instructs, if a portion (low index region) regarding which the calculated index is less than a predetermined index threshold is present in the crop region, drone to shoot the low index region while increasing the resolution of the image. Specifically, flight instruction unit makes an instruction to shoot the portion while performing a low-altitude flight at an altitude lower than that when the image regarding which the index of the low index region has been calculated has been shot.
    Type: Grant
    Filed: April 23, 2019
    Date of Patent: September 19, 2023
    Assignee: NTT DOCOMO, INC.
    Inventors: Hiroshi Nakagawa, Kazuhiro Yamada, Youhei Oono, Yuichiro Segawa
  • Publication number: 20230287831
    Abstract: A turbine housing is configured to house a turbine wheel to be driven with exhaust gas discharged from a gasoline engine. The turbine housing includes: a body part including a scroll passage wall surface, an exhaust gas discharge path wall surface, and a wastegate passage wall surface provided inside the body part, the scroll passage wall surface forming a scroll passage having a scroll shape for guiding the exhaust gas to the turbine wheel, the exhaust gas discharge path wall surface forming an exhaust gas discharge path for discharging the exhaust gas having passed through the turbine wheel, the wastegate passage wall surface forming a wastegate passage connecting the scroll passage and the exhaust gas discharge path to each other while bypassing the turbine wheel; and an entrance flange part provided at an upstream end of the scroll passage in the body part, the entrance flange part including an exhaust gas inlet leading to the scroll passage.
    Type: Application
    Filed: December 28, 2020
    Publication date: September 14, 2023
    Applicant: MITSUBISHI HEAVY INDUSTRIES ENGINE & TURBOCHARGER, LTD.
    Inventors: Shunsuke MIYOSHI, Kenji NITTA, Hiroshi NAKAGAWA, Sosuke IRIE
  • Publication number: 20230246022
    Abstract: An electronic component, an electronic circuit, and a method for manufacturing an electronic component. An electronic component includes a substrate having first and second main surfaces facing each other and containing a silicon element; a capacitor element on the first main surface; and an inductor element on the first or second main surfaces in a direction orthogonal to the first main surface with respect to the capacitor element and electrically connected to the capacitor element. The capacitor element includes a first electrode portion extending in a direction intersecting the first main surface between the first and second main surfaces; a second electrode portion that extends in the direction intersecting the first main surface between the first and second main surfaces, and faces the first electrode portion in a direction parallel to the first main surface; and a dielectric portion between the first and second electrode portions.
    Type: Application
    Filed: January 27, 2023
    Publication date: August 3, 2023
    Applicant: Murata Manufacturing Co., Ltd.
    Inventors: Yoshimasa YOSHIOKA, Hiroshi NAKAGAWA
  • Patent number: 11712808
    Abstract: A machine learning device that learns an operation of a robot for picking up, by a hand unit, any of a plurality of objects placed in a random fashion, including a bulk-loaded state, includes a state variable observation unit that observes a state variable representing a state of the robot, including data output from a three-dimensional measuring device that obtains a three-dimensional map for each object, an operation result obtaining unit that obtains a result of a picking operation of the robot for picking up the object by the hand unit, and a learning unit that learns a manipulated variable including command data for commanding the robot to perform the picking operation of the object, in association with the state variable of the robot and the result of the picking operation, upon receiving output from the state variable observation unit and output from the operation result obtaining unit.
    Type: Grant
    Filed: April 28, 2020
    Date of Patent: August 1, 2023
    Assignees: FANUC CORPORATION, PREFERRED NETWORKS. INC.
    Inventors: Takashi Yamazaki, Takumi Oyama, Shun Suyama, Kazutaka Nakayama, Hidetoshi Kumiya, Hiroshi Nakagawa, Daisuke Okanohara, Ryosuke Okuta, Eiichi Matsumoto, Keigo Kawaai
  • Publication number: 20230138726
    Abstract: A device for estimating a temperature of a lubricant in a transmission that transmits power from a motor to a robot joint includes a thermometer and a processor. The processor includes hardware configured to: receive, as input from the motor, a current value of the motor and calculate, as output, a motor heat value based thereon; receive, as input from the motor and the transmission, a rotating speed of the motor and a frictional torque of the transmission, and calculate, as output, a frictional heat value in the transmission based on the rotating speed of the motor and at least one of the frictional torque of the transmission and at least one coefficient of friction of the transmission; and receive, as input from the thermometer, the room temperature, the frictional heat value, and the motor heat value and estimate, as output, the estimated temperature of the lubricant based thereon.
    Type: Application
    Filed: December 29, 2022
    Publication date: May 4, 2023
    Inventors: Wei GUO, Hiroshi NAKAGAWA
  • Patent number: 11605503
    Abstract: A capacitor that includes an insulating base material having a first main surface and a second main surface facing each other, the insulating base material defining first and second trenches extending from the first main surface into the base material such that first trench and the second trench overlap each other; a first conductor in the first trench; a first external electrode on the first main surface of the base material and connected to the first conductor; a second conductor in the second trench; and a second external electrode on the second main surface of the base material and connected to the second conductor.
    Type: Grant
    Filed: February 4, 2020
    Date of Patent: March 14, 2023
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Tomoyuki Ashimine, Hiroshi Nakagawa, Yasuhiro Murase
  • Publication number: 20230065239
    Abstract: A liquid crystal polyester resin comprising 42 to 80 mol % of structural unit (I) relative to 100 mol % of the total structural unit of the liquid crystal polyester resin, and ?S (entropy of melting) defined by equation [1] is 0.01×10?3 to 2.7×10?3 J/g·K: ?S(J/g·K)=?Hm(J/g)/Tm(K)??[1] wherein Tm is an endothermic peak temperature determined by: after observation of an endothermic peak temperature (Tm1) observed when heating a liquid crystal polyester under temperature rising conditions of 20° C./minute from room temperature in differential scanning calorimetry, the liquid crystal polyester was maintained at a temperature of Tm1+20° C. for 5 minutes, followed by observation of the endothermic peak temperature observed when the temperature has fallen to room temperature under temperature falling conditions of 20° C./minute and then raised under temperature rising conditions of 20° C.
    Type: Application
    Filed: December 21, 2020
    Publication date: March 2, 2023
    Inventors: Akito Konishi, Hiroshi Nakagawa, Junki Tanabe, Hideyuki Umetsu
  • Patent number: 11578834
    Abstract: Provided is a life evaluating device that evaluates the life of a lubricant in a machine including a motor and a transmission mechanism that is lubricated by the lubricant and transmits power of the motor to a movable unit. The life evaluating device includes a motor-heat-value calculating unit that calculates a motor heat value on the basis of a current value of the motor, a frictional-heat-value calculating unit that calculates a frictional heat value in the transmission mechanism on the basis of rotating speed of the motor and a coefficient of friction of the transmission mechanism, a lubricant-temperature estimating unit that estimates temperature of the lubricant on the basis of the calculated frictional heat value and the calculated motor heat value, and a life estimating unit that estimates the life of the lubricant on the basis of the estimated temperature of the lubricant.
    Type: Grant
    Filed: February 27, 2018
    Date of Patent: February 14, 2023
    Assignee: FANUC CORPORATION
    Inventors: Wei Guo, Hiroshi Nakagawa
  • Patent number: 11580468
    Abstract: An information processing apparatus includes an accumulation unit that accumulates history information regarding a flight history of an aircraft. A specification unit, based on the history information accumulated by the accumulation unit, specifies a candidate to be an operation assistant who assists an operation planned by an assisted operator. An output unit outputs information regarding the candidate to be the operation assistant specified by the specification unit.
    Type: Grant
    Filed: November 16, 2018
    Date of Patent: February 14, 2023
    Assignee: NTT DOCOMO, INC.
    Inventors: Hiroshi Nakagawa, Kazuhiro Yamada
  • Publication number: 20230020581
    Abstract: A turbine housing has a scroll passage.
    Type: Application
    Filed: January 7, 2020
    Publication date: January 19, 2023
    Applicant: MITSUBISHI HEAVY INDUSTRIES ENGINE & TURBOCHARGER, LTD.
    Inventors: Toru HOSHI, Hiroshi NAKAGAWA, Shunsuke MIYOSHI, Kenji NITTA, Sosuke IRIE
  • Patent number: 11501009
    Abstract: An electronic privacy apparatus, for selectively blocking transmission of data from a camera, includes a camera, a first processor, a switch, and a second processor. The first processor is connected to the camera and receives image data from the camera. The switch is connected to the first processor. The second processor is configured to execute an operating system. The first processor implements a transmission state where the first processor transmits the image data to the second processor. The first processor also implements a privacy state where the first processor transmits blank data to the second processor. Based on user input, the switch selects either the transmission state or the privacy state and transmits a signal to the first processor indicating the user input.
    Type: Grant
    Filed: September 30, 2021
    Date of Patent: November 15, 2022
    Assignee: Lenovo (Singapore) Pte. Ltd.
    Inventors: Xueyong Yang, Hiroshi Nakagawa, Kazuhiro Kosugi, Yasumichi Tsukamoto
  • Publication number: 20220352024
    Abstract: A method of fabricating a semiconductor structure that includes: forming a first metal layer over a wafer; forming a second metal layer over the first metal layer; forming a first porous structure in a first region of the second metal layer located above a circuit area of the wafer and a second porous structure in a second region of the second metal layer located above a dicing area of the wafer, wherein the first porous structure includes a first set of pores, and wherein the second porous structure includes a second set of pores; forming a metal-insulator-metal stack in the first set of pores of the first porous structure; and etching the second set of pores of the second porous structure to expose the dicing area of the silicon wafer.
    Type: Application
    Filed: July 6, 2022
    Publication date: November 3, 2022
    Inventors: Frédéric VOIRON, Brigitte SOULIER, Hiroshi NAKAGAWA