Patents by Inventor Takashi Fujita

Takashi Fujita 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: 20250149346
    Abstract: A method of forming an electromagnetic-wave shield includes forming a conductive layer and forming an insulating layer. The forming the conductive layer forms a conductive layer having a plurality of openings onto an upper face and a side face of a surface of an object. The forming the insulating layer forms an insulating layer that is continuous from a surface of the conductive layer to the surface of the object through the plurality of openings and adheres to the surface of the object.
    Type: Application
    Filed: March 13, 2023
    Publication date: May 8, 2025
    Inventors: Hideo NAKAMORI, Tomoo FUKUDA, Yukihiro WAKABAYASHI, Kohji TAKEUCHI, Yohei SHIREN, Takashi FUJITA, Hiroyuki HIRATSUKA, Asato TAMURA, Tohru HASEGAWA
  • Patent number: 12292095
    Abstract: A torsional-vibration reducing device includes: an input rotation member, an output rotation member, a coil spring which mitigates torque fluctuation generated at an input side and transmits power to an output side, a spring retaining portion provided on at least one of the input rotation member and the output rotation member and configured to support the coil spring, and a hole formed at a position corresponding to the spring retaining portion in an outer diameter direction with respect to a rotation center line.
    Type: Grant
    Filed: May 11, 2021
    Date of Patent: May 6, 2025
    Assignee: VALEO KAPEC JAPAN KK
    Inventors: Kiyoshi Yamamoto, Takashi Fujita, Hiroki Yanagisawa
  • Patent number: 12286171
    Abstract: A steering control device includes a controller configured to control driving of a motor that generates a torque. The torque is a torque applied to a steering mechanism of a vehicle using electric power from at least any one of an in-vehicle main power source and an auxiliary power source that backs up the main power source. The controller is configured to wait for the auxiliary power source to be charged to an extent that the main power source is able to be backed up and to permit the vehicle to travel when the controller is activated with an activation operation for the vehicle as a trigger and transitions to a state where control of the motor is executable.
    Type: Grant
    Filed: October 20, 2022
    Date of Patent: April 29, 2025
    Assignees: JTEKT CORPORATION, TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Takashi Koudai, Yuji Fujita, Yugo Nagashima, Yuuta Kajisawa, Kazuma Hasegawa, Yosuke Yamashita, Shintaro Takayama
  • Patent number: 12286194
    Abstract: A sprocket support body comprises at least ten external spline teeth including a plurality of external-spline driving surfaces. The plurality of external-spline driving surfaces each includes a radially outermost edge, a radially innermost edge, and a radial length. A total of the radial lengths of the plurality of external-spline driving surfaces is equal to or larger than 7 mm. At least one external-spline driving surface has a first external-spline-surface angle. The first external-spline-surface angle ranges from 0 degree to 10 degrees. One tooth of the at least ten external spline teeth having a first circumferential spline size. The other teeth of the at least ten external spline teeth each have a second circumferential spline size that is smaller than the first circumferential spline size. A total number of the other teeth of the at least ten external spline teeth being equal to or larger than nine.
    Type: Grant
    Filed: July 13, 2021
    Date of Patent: April 29, 2025
    Assignee: SHIMANO INC.
    Inventors: Hiroshi Fujita, Kazuki Koshiyama, Takashi Nakanishi
  • Publication number: 20250116551
    Abstract: In a signal processing circuit, an input terminal is configured to receive an analog signal output from an avalanche photodiode operating in Geiger mode. A comparison circuit outputs a signal based on a component exceeding a threshold among components a signal input to the comparison circuit. The adjustment circuit includes an AC coupling unit, a level shifter unit, and a reference value adjustment unit. The AC coupling unit establishes AC coupling between the input terminal and the comparison circuit. The level shifter unit adjusts the voltage of the signal input to the comparison circuit to a value lower than a reverse bias voltage applied to the avalanche photodiode. The reference value adjustment unit adjusts the reference value of the signal input to the comparison circuit.
    Type: Application
    Filed: January 27, 2023
    Publication date: April 10, 2025
    Applicant: HAMAMATSU PHOTONICS K.K.
    Inventors: Riku SHIMADA, Takuya FUJITA, Takashi BABA, Shunsuke ADACHI, Shinya IWASHINA
  • Patent number: 12271104
    Abstract: A light-source device, an image projection apparatus, and a display device. The light-source device includes a light source to emit light, an optical element having a lens array on one side or both sides of which a plurality of lenses are arrayed with distance from each other, the distance between a pair of vertices of an adjacent pair of the plurality of lenses of the optical element being equal to or less than one-quarter of width of light flux of the light incident on the optical element, and a wavelength conversion element to convert a wavelength of the light emitted from the light source and passed through the optical element. An image projection apparatus includes the light-source device, a light mixing element to mix the light emitted from the light-source device to uniformize the light, and an illumination optical system to emit the light uniformized by the light mixing element.
    Type: Grant
    Filed: September 16, 2022
    Date of Patent: April 8, 2025
    Assignee: RICOH COMPANY, LTD.
    Inventors: Yohei Takano, Makoto Hirakawa, Kazuhiro Fujita, Takashi Sasaki
  • Patent number: 12263897
    Abstract: A steering control system that controls a steering device of a vehicle includes a storage unit, and a control unit configured to make a state transition to a normal control state via a start-up state after a power source system of the vehicle is started. In the start-up state, the control unit executes a correction information storing process of acquiring correction element information using a state variable obtained from the steering device and writing correction information obtained based on the correction element information into the storage unit. In the start-up state, the control unit is configured to execute an abnormal condition determination process of determining whether an abnormal condition indicating that the correction information is abnormal is met. The correction information storing process is re-executed when the abnormal condition is met. The abnormal condition determination process is executed at least either before or after the correction information storing process.
    Type: Grant
    Filed: July 14, 2023
    Date of Patent: April 1, 2025
    Assignees: JTEKT CORPORATION, TOYOTA JIDOSHA KABUSHIKI KAISHA, DENSO CORPORATION
    Inventors: Takashi Koudai, Yuji Fujita, Yugo Nagashima, Kazuma Hasegawa, Yuuta Kajisawa, Masaharu Yamashita, Atsushi Satou, Yosuke Yamashita, Kazuaki Iida, Shintaro Takayama, Takeshi Iwana, Toyohiro Hayashi, Hayaki Tanabe, Nobuyori Nakajima, Hiroki Tomizawa
  • Publication number: 20250106957
    Abstract: An oscillator (1) according to the present disclosure generates output power, and provides a microwave that is in accordance with the output power as an output wave. The oscillator (1) includes a signal generator (10), a power amplifier (20), and a temperature sensor (40). The signal generator (10) generates an oscillation signal. The power amplifier (20) includes a final stage device (22), and amplifies the oscillation signal to generate the output power. The temperature sensor (40) detects a temperature of the final stage device (22). The final stage device (22) is packaged. The temperature sensor (40) is disposed in a package (200) that includes the final stage device (22).
    Type: Application
    Filed: January 11, 2023
    Publication date: March 27, 2025
    Inventors: HIDETAKA SUGAYA, TAKASHI UNO, SHOZO FUJIWARA, HIKARU IKEDA, SHIZUO FUJITA, KATSUTOSHI FUKUDA
  • Patent number: 12247870
    Abstract: A photodetector device includes an avalanche photodiode array substrate formed from compound semiconductor. A plurality of avalanche photodiodes arranged to operate in a Geiger mode are two-dimensionally arranged on the avalanche photodiode array substrate. A circuit substrate includes a plurality of output units which are connected to each other in parallel to form at least one channel. Each of the output units includes a passive quenching element and a capacitative element. The passive quenching element is connected in series to at least one of the plurality of avalanche photodiodes. The capacitative element is connected in series to at least one of the avalanche photodiodes and is connected in parallel to the passive quenching element.
    Type: Grant
    Filed: July 18, 2023
    Date of Patent: March 11, 2025
    Assignee: HAMAMATSU PHOTONICS K.K.
    Inventors: Takuya Fujita, Yusei Tamura, Kenji Makino, Takashi Baba, Koei Yamamoto
  • Publication number: 20250074206
    Abstract: The motor control unit reduces the drive braking torque for applying the braking force to the drive wheel by the reverse rotation timing predicted by the reverse rotation prediction unit at the latest, and the friction braking unit increases a friction braking force applied to the drive wheel by the friction braking device so that the friction braking force exceeds the braking force provided by the drive braking torque by the reverse rotation timing predicted by the reverse rotation prediction unit at the latest.
    Type: Application
    Filed: May 3, 2022
    Publication date: March 6, 2025
    Applicants: DENSO CORPORATION, TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Masakatsu SHIGYOH, Takashi SATOU, Takuto SUZUKI, Kensuke UEDA, Yoshitaka FUJITA, Tomohiro YAMASHITA, Masao YANO, Sota UKAI
  • Publication number: 20250073964
    Abstract: A molding material of the present disclosure includes cellulose fibers, a resin melting at 200° C. or lower, and polyurethane, the molding material having complex viscosity at 180° C. of 3000 Pa·s or more and 147000 Pa·s or less. The resin is preferably at least one selected from the group consisting of polypropylene and polylactic acid.
    Type: Application
    Filed: August 29, 2024
    Publication date: March 6, 2025
    Inventors: Masaaki AOTA, Tomohiro FUJITA, Takashi HIRAIWA
  • Patent number: 12240339
    Abstract: A power supply device includes a driving control device and an auxiliary control device, the vehicle including a main power source, an auxiliary power source, and a supply path, the supply path being a path configured to be opened and closed according to a state of a start switch of the vehicle. The driving control device is a device that controls a state of equipment installed in the vehicle and the auxiliary control device is a device that controls a state of the auxiliary power source. The driving control device is configured to execute a storage process, a permission signal transmission process, and an initial value process, and the auxiliary control device is configured to execute a permission signal reception process and a stop process.
    Type: Grant
    Filed: June 22, 2023
    Date of Patent: March 4, 2025
    Assignees: JTEKT CORPORATION, TOYOTA JIDOSHA KABUSHIKI KAISHA, DENSO CORPORATION
    Inventors: Yuuta Kajisawa, Yuji Fujita, Yugo Nagashima, Kazuma Hasegawa, Takashi Koudai, Masaharu Yamashita, Atsushi Satou, Yosuke Yamashita, Kazuaki Iida, Hiroyuki Katayama, Shintaro Takayama, Toyohiro Hayashi, Takeshi Iwana, Hayaki Tanabe, Nobuyori Nakajima, Hiroki Tomizawa
  • Patent number: 12240546
    Abstract: A steering control device includes a control unit. The control unit is configured to execute a control angle calculation process, an angle feedback process, and a standard value adjustment process. The control angle calculation process is a process of calculating a control angle as an absolute angle relative to a standard value, and the angle feedback process is a process of performing feedback control on the control angle, and the standard value adjustment process is a process of adjusting the stored standard value. The standard value adjustment process includes a process of, when, in a straight-ahead state, the control angle deviates from a value showing the straight-ahead state, adjusting the standard value such that the deviation of the control angle from the value showing the straight-ahead state decreases.
    Type: Grant
    Filed: January 19, 2023
    Date of Patent: March 4, 2025
    Assignees: JTEKT CORPORATION, TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Takashi Koudai, Yuji Fujita, Yugo Nagashima, Kazuma Hasegawa, Yuuta Kajisawa, Shintaro Takayama, Hiroyuki Katayama, Yosuke Yamashita, Masaharu Yamashita
  • Publication number: 20250069818
    Abstract: Provided are a method for producing a polymer dispersion for a solid electrolytic capacitor which enables production of a solid electrolytic capacitor having a large capacitance and a low equivalent series resistance, and a method for producing a solid electrolytic capacitor using the polymer dispersion. The method for producing a polymer dispersion for a solid electrolytic capacitor according to the present invention includes a step (1) of polymerizing a monomer as a constitutional unit of a conjugated conductive polymer in a liquid containing at least one of a seed particle with protective colloid formed of a polyanion and a polyanion to obtain a polymer-containing liquid; a step (2) of performing a first dispersion treatment on the polymer-containing liquid to obtain a dispersion (a); and a step (3) of adding an electric conductivity improver to the dispersion (a), and performing a second dispersion treatment to obtain a dispersion (b).
    Type: Application
    Filed: September 20, 2022
    Publication date: February 27, 2025
    Applicant: Resonac Corporation
    Inventors: Hiroki YAMADA, Miyo FUJITA, Takashi OKUBO
  • Patent number: 12233972
    Abstract: A control device for a vehicle includes a plurality of control circuits configured to control a control object by starting in response to powering-on of a vehicle and to perform power latch control for continuing to be supplied with electric power in a predetermined period in response to powering-off of the vehicle. Each of the control circuits is configured to perform starting after all of the control circuits have recognized the powering-on of the vehicle in a case where the vehicle is powered on while the power latch control is being performed after the vehicle has been powered off.
    Type: Grant
    Filed: October 14, 2022
    Date of Patent: February 25, 2025
    Assignees: JTEKT CORPORATION, TOYOTA JIDOSHA KABUSHIKI KAISHA, DENSO CORPORATION
    Inventors: Yugo Nagashima, Yuji Fujita, Kazuma Hasegawa, Yuuta Kajisawa, Takashi Koudai, Masaharu Yamashita, Yosuke Yamashita, Shintaro Takayama, Kazuaki Iida, Hiroyuki Katayama, Hiroki Tomizawa, Nobuyori Nakajima
  • Patent number: 12227644
    Abstract: The present invention relates to a polyamide resin composition that is excellent in mechanical characteristics, bonding properties and calcium chloride resistance and is suitably bonded to an acid-modified polyolefin, wherein the polyamide resin composition includes 70 to 99 mass % of an aliphatic polyamide resin (A) having an amino group concentration of 46 to 110 ?mol/g, 0 to 18 mass % of an aromatic polyamide resin (B), 0.01 to 0.50 mass % of a polyalkylene glycol alkyl ether (C), 0.01 to 0.50 mass % of a polyolefin wax (D) and 0 to 22.98 mass % of a component (E) other than (A) to (D), and the total of (A) to (E) is 100 mass %, and wherein the acid-modified polyolefin having an amount of acid modification of 8 to 100 ?mol/g.
    Type: Grant
    Filed: March 19, 2021
    Date of Patent: February 18, 2025
    Assignee: UBE CORPORATION
    Inventors: Tetsuya Yasui, Akane Sakamoto, Yuki Suedomi, Hitoshi Kodama, Kosuke Oishi, Takashi Kumagai, Mikako Fujita
  • Publication number: 20250044003
    Abstract: A ventilation apparatus includes a compressor; a first heat exchanger configured to function as a condenser or an evaporator; a first air flow path configured to supply air taken in from outdoors to an indoor space after passing through the first heat exchanger; a second heat exchanger configured to function as a condenser or an evaporator; a second air flow path configured to exhaust air taken in from the indoor space to the outdoors after passing through the second heat exchanger; a refrigerant circuit through which a refrigerant flows, the refrigerant circuit being connected to the compressor, the first heat exchanger, and the second heat exchanger by a refrigerant pipe; and a control unit configured to guide a flow of air in the indoor space to the second heat exchanger when the second heat exchanger is determined to be in a frosted state, to increase a temperature of the second heat exchanger, and configured to output a predetermined instruction to an actuator configured to control a state of the refrige
    Type: Application
    Filed: December 8, 2022
    Publication date: February 6, 2025
    Inventors: Shota TSURUZONO, Takashi TAKAHASHI, Tsunahiro ODO, Nobuki MATSUI, Yoshiki YAMANOI, Naotoshi FUJITA, Takuya HANADA, Yuta IYOSHI, Kumiko SAEKI, Takeru MIYAZAKI, Toshiyuki MAEDA, Tetsuya OKAMOTO
  • Patent number: 12214830
    Abstract: A steering control device includes a control circuit configured to control driving of a reaction force motor that generates steering reaction force applied to a steering wheel in which power transmission with turning wheels of a vehicle is separated. When a vehicle power source is turned on, the control circuit requests a vehicle control device to stop traveling of the vehicle when information is exchanged with the vehicle control device in a manner that does not follow a predetermined pattern.
    Type: Grant
    Filed: October 26, 2022
    Date of Patent: February 4, 2025
    Assignees: JTEKT CORPORATION, TOYOTA JIDOSHA KABUSHIKI KAISHA, DENSO CORPORATION
    Inventors: Yugo Nagashima, Yuji Fujita, Yuuta Kajisawa, Kazuma Hasegawa, Takashi Koudai, Masaharu Yamashita, Yosuke Yamashita, Shintaro Takayama, Hiroki Tomizawa
  • Patent number: 12214831
    Abstract: A turning control device includes a precursor detection circuit configured to detect a precursor of an abnormality by which a smooth operation of a turning device is impaired. The precursor detection circuit is configured to start measurement of a total running time of a vehicle when the precursor is detected, and is configured to execute a process of reporting the precursor, based on the measured total running time. The precursor detection circuit is configured to perform the measurement of the total running time regardless of whether the precursor is detected again, when a vehicle electric power source is switched off and then is switched on again after the precursor is detected once.
    Type: Grant
    Filed: January 24, 2023
    Date of Patent: February 4, 2025
    Assignees: JTEKT CORPORATION, TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Takashi Koudai, Yuji Fujita, Yugo Nagashima, Kazuma Hasegawa, Yuuta Kajisawa, Masaharu Yamashita, Yosuke Yamashita, Kazuaki Iida, Shintaro Takayama
  • Publication number: 20250029930
    Abstract: An interposer including an inner layer structure including at least one inner wiring layer; a first outer layer structure disposed on a first surface of the inner layer structure, the first outer layer structure having rigidity higher than the inner layer structure; and a second outer layer structure disposed on a second surface of the inner layer structure, the second outer layer structure having rigidity higher than the inner layer structure, the inner wiring layer includes wiring disposed on a surface of a first insulating resin layer, which is a photosensitive insulating resin, and a conductive member connected to the wiring and penetrating the first insulating resin layer, the first outer layer structure includes a second insulating resin layer and a conductive member penetrating the second insulating resin layer, the second outer layer structure includes a third insulating resin layer and a conductive member penetrating the third insulating resin layer.
    Type: Application
    Filed: August 14, 2024
    Publication date: January 23, 2025
    Applicant: TOPPAN HOLDINGS INC.
    Inventors: Fusao TAKAGI, Masahiro KOSUGI, Takashi FUJITA, Shuji KIUCHI