Patents by Inventor Akihiro Harada

Akihiro Harada 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: 20230136072
    Abstract: A valve which can accurately detect an operation of the valve is provided. The valve includes a valve body defining a fluid flow passage, a valve disk operating to be able to open and close the fluid flow passage, an actuator driving the valve disk by supplying or interrupting a working fluid, a stem transmitting a driving force of the actuator to the valve disk, a detection means detecting an opening and closing operation of the valve disk, and an elastic member fixing a ring-shaped magnetic body inserted through an end of the stem to the stem. The detection means includes the magnetic body fixed by the elastic member, and a magnetic sensor detecting a change in a magnetic field of the magnetic body.
    Type: Application
    Filed: September 27, 2022
    Publication date: May 4, 2023
    Inventors: Kengo TSUJINO, Tomoki NAKADA, Ryutaro TANNO, Yuya SUZUKI, Akihiro HARADA, Tsutomu SHINOHARA
  • Patent number: 11628500
    Abstract: A metal powder producing apparatus comprising a melted metal supplying part discharging a melted metal, a cylinder body provided below the melted metal supplying part, and a cooling liquid layer forming part forming a flow of a cooling liquid for cooling the melted metal discharged from the melted metal supplying part along an inner circumference face of the cylinder body, wherein the cooling liquid layer forming part has a primary pressure reservoir, and the primary pressure reservoir is provided on an outer circumference part of the cylinder body.
    Type: Grant
    Filed: June 30, 2021
    Date of Patent: April 18, 2023
    Assignee: TDK CORPORATION
    Inventors: Kenji Horino, Kazuhiro Yoshidome, Akihiro Harada, Hiroyuki Matsumoto
  • Patent number: 11586175
    Abstract: A tool is equipped with a torque sensor, suited for a tightening task of a fastening component of a device such as a fluid control system that requires a large number of fastening components for assembly and has a narrow space for access to the fastening components, and capable of automatically detecting a tightening torque. The tool includes a torque sensor capable of detecting a tightening torque for tightening a fastening component acting on a bit. The torque sensor initiates measurement of the tightening torque when the tightening torque detected exceeds a set threshold value, completes measurement when the tightening torque detected falls below the set threshold value and a set time elapses, and outputs torque-related data formed on the basis of measurement data from measurement initiation to measurement completion and including a measurement time. The torque-related data includes a peak value of the measurement data.
    Type: Grant
    Filed: December 3, 2018
    Date of Patent: February 21, 2023
    Assignees: CONNECTEC JAPAN CORPORATION, FUJIKIN INCORPORATED
    Inventors: Kazutoshi Horikawa, Toru Nebashi, Hidekazu Machida, Nozomi Shimoishizaka, Akihiro Harada, Masahiko Ochiishi, Yoshiaki Yamato, Hiroki Karube, Mutsunori Koyomogi, Tsutomu Shinohara
  • Patent number: 11569014
    Abstract: A dust core includes large particles having an average particle size of 8-15 ?m, medium particles having an average particle size of 1-5 ?m, and small particles having an average particle size of 300-900 nm when a cross section thereof is observed. An area ratio occupied by the large particles is 50% to 90%, an area ratio occupied by the medium particles is 0% to 30%, and an area ratio occupied by the small particles is 5% to 30%, when a total area ratio occupied by the large particles, the medium particles and the small particles is 100% in the cross section. Vickers hardness (Hv) of the large particles, the medium particles and the small particles is 150-600 respectively. The small particles are alloy powder containing Fe and at least Si or N. The dust core may be included in an inductor element.
    Type: Grant
    Filed: May 17, 2019
    Date of Patent: January 31, 2023
    Assignee: TDK CORPORATION
    Inventors: Hideharu Moro, Akihiro Harada, Masahito Koeda
  • Publication number: 20230024126
    Abstract: A pipe joint includes first and second sleeves having fluid flow paths communicating with each other; an annular gasket interposed between abutting end surfaces of the sleeves; a male screw member having a through hole into which the first sleeve is inserted; and a female screw member having a through hole into which the second sleeve is inserted, the sleeves being joined by screwing the male screw member with the female screw member, wherein the pipe joint has a leak port opened at a portion of the outer peripheral surface of the male screw member not covered by the female screw member and communicates with a gap between the male screw member and the first sleeve to detect a leak fluid leaked from gaps between the sleeves and the gasket.
    Type: Application
    Filed: March 8, 2021
    Publication date: January 26, 2023
    Applicant: FUJIKIN INCORPORATED
    Inventors: Akihiro HARADA, Tomohiro NAKATA, Tsuneyuki OKABE, Yuya SHINDO
  • Patent number: 11508502
    Abstract: A soft magnetic alloy or the like combining high saturated magnetic flux density, low coercive force and high magnetic permeability ?? having the composition formula (Fe(1?(?+?))X1?X2?)(1?(a+b+c+d+e))BaSibCcCudMe. X1 is one more elements selected from the group consisting of Co and Ni, X2 is one or more elements selected from the group consisting of Al, Mn, Ag, Zn, Sn, As, Sb, Bi, N, O and rare earth elements, and M is one or more elements selected from the group consisting of Nb, Hf, Zr, Ta, Ti, Mo, W and V. 0.140<a?0.240, 0?b?0.030, 0<c<0.080, 0<d?0.020, 0?e?0.030, ??0, ??0, and 0??+??0.50 are satisfied.
    Type: Grant
    Filed: August 21, 2018
    Date of Patent: November 22, 2022
    Assignee: TDK CORPORATION
    Inventors: Akihiro Harada, Akito Hasegawa, Kazuhiro Yoshidome, Kenji Horino, Hiroyuki Matsumoto
  • Patent number: 11495377
    Abstract: Provided is a soft magnetic alloy which has high saturation flux density and low coercivity and is represented by the compositional formula (Fe(1?(?+?))X1?X2?)(1?(a+b+c+d+e+f))MaPbSicCudX3eBf, wherein X1 is at least one element selected from the group consisting of Co and Ni, X2 is at least one element selected from the group consisting of Ti, V, Mn, Ag, Zn, Al, Sn, As, Sb, Bi, and rare earth elements, X3 is at least one element selected from the group consisting of C and Ge, and M is at least one element selected from the group consisting of Zr, Nb, Hf, Ta, Mo, and W, and wherein 0.030?a?0.120, 0.010?b?0.150, 0?c?0.050, 0?d?0.020, 0?e?0.100, 0?f?0.030, ??0, ??0, and 0??+??0.55.
    Type: Grant
    Filed: February 15, 2019
    Date of Patent: November 8, 2022
    Assignee: TDK CORPORATION
    Inventors: Hajime Amano, Akihiro Harada, Kenji Horino, Hiroyuki Matsumoto, Kazuhiro Yoshidome, Akito Hasegawa, Kensuke Ara, Masakazu Hosono
  • Patent number: 11472009
    Abstract: To provide a manual tool excellent in workability and operability and capable of precise tightening torque management, a manual tool includes a grip including a bit holding part that detachably holds a bit, and a torque sensor that is of a magnetostrictive type, and includes a detecting part that is penetrated by the bit held by the bit holding part and surrounds an outer periphery of the bit, the torque sensor is capable of contactlessly detecting a torque acting on the bit, and is detachably provided to the grip. The torque sensor can be configured to be formed so as to be mountable to the grip with the bit mounted to the bit holding part of the grip.
    Type: Grant
    Filed: October 23, 2018
    Date of Patent: October 18, 2022
    Assignees: FUJIKIN INCORPORATED, SASADA MAGNETICS AND SENSORS LABORATORY CO., LTD.
    Inventors: Akihiro Harada, Masahiko Ochiishi, Tsutomu Shinohara, Ichiro Sasada
  • Patent number: 11459019
    Abstract: A vehicle steering apparatus, including: a steering column; a link member; an actuator including: a vehicle body side engaging portion, and a link side engaging portion, and when operated, the actuator changing a spacing between the vehicle body side engaging portion and the link side engaging portion, and swinging the steering column between the first position and the second position; a steering support that supports the steering column from the vehicle lower side in a state in which the steering column is disposed at the first position; and a clamp member provided at the link member, the clamp member being engaged with the steering support in the state in which the steering column is disposed at the first position, and the clamp member moving away from the steering support when the steering column is to swing from the first position toward the second position.
    Type: Grant
    Filed: June 7, 2021
    Date of Patent: October 4, 2022
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Masahiro Ohrui, Akira Kaneko, Akihiro Harada
  • Publication number: 20220290764
    Abstract: A valve device comprising: a flow passage block in which a flow passage is formed; a diaphragm configured to open and close the flow passage; an actuator configured to push down the diaphragm via a diaphragm holder; a tubular bonnet formed with an internal thread on an inner circumferential surface, the bonnet being configured to join the flow passage block and the actuator; a tubular adjusting screw threaded to the internal thread, the adjusting screw being configured to come into contact with the diaphragm holder to adjust a valve opening position of the diaphragm; and an annular lock nut configured to lock the adjusting screw by being screwed into the internal thread.
    Type: Application
    Filed: June 10, 2020
    Publication date: September 15, 2022
    Inventors: AKIHIRO HARADA, TOMOHIRO NAKATA, TAKERU MIURA, MICHIO YAMAJI, TADAYUKI YAKUSHIJIN, KEISUKE ISHIBASHI
  • Patent number: 11401590
    Abstract: Provided is a soft magnetic alloy having a composition of a compositional formula (Fe(1?(?+?))X1?X2?)(1?(a+b+c+d+e))PaCbSicCudMe. X1 is one or more selected from a group consisting of Co and Ni, X2 is one or more selected from a group consisting of Al, Mn, Ag, Zn, Sn, As, Sb, Bi, N, 0, and rare earth elements, and M is one or more selected from the group consisting of Nb, Hf, Zr, Ta, Ti, Mo, W and V. 0.050?a?0.17, 0<b<0.050, 0.030<c?0.10, 0<d?0.020, 0?e?0.030, ??0, ??0, and 0??+??0.50.
    Type: Grant
    Filed: May 17, 2018
    Date of Patent: August 2, 2022
    Assignee: TDK CORPORATION
    Inventors: Akihiro Harada, Hiroyuki Matsumoto, Kenji Horino, Kazuhiro Yoshidome, Akito Hasegawa, Hajime Amano, Kensuke Ara, Seigo Tokoro, Masakazu Hosono, Takuma Nakano, Satoko Mori
  • Patent number: 11371627
    Abstract: A cause of abnormality of a fluid control device and/or data with which abnormality can be predicted can be collected to be analyzed, and abnormality can be predicted based on a result of the analysis. A fluid control device 8 and a server 72 are configured to be able to communicate with each other through networks NW1 and 2. The fluid control device 8 includes an operation information acquisition mechanism that acquires a plurality of types of operation information about the fluid control device 8.
    Type: Grant
    Filed: March 13, 2018
    Date of Patent: June 28, 2022
    Assignee: Fujikin Incorporated
    Inventors: Yuya Suzuki, Katsunori Komehana, Masahiko Ochiishi, Akihiro Harada, Ryutaro Tanno, Tsutomu Shinohara
  • Patent number: 11340636
    Abstract: To diagnose an abnormality of a fluid control device from an operation of an entire fluid supply line including a plurality of fluid control devices. Provided is an abnormality diagnosis method of a fluid supply line including a plurality of fluid control devices F, V1, and V2 communicating with each other fluid-tightly.
    Type: Grant
    Filed: October 5, 2018
    Date of Patent: May 24, 2022
    Assignee: Fujikin Incorporated
    Inventors: Ryutaro Tanno, Kenji Aikawa, Akihiro Harada, Yuya Suzuki, Takahiro Matsuda, Katsunori Komehana, Masahiko Ochiishi, Tsutomu Shinohara
  • Patent number: 11328847
    Abstract: A soft magnetic alloy including a compositional formula of ((Fe(1?(?+?))X1?X2?)(1?(a+b+c+e))MaBbPcCue)1?fCf, wherein X1 is one or more selected from the group consisting Co and Ni, X2 is one or more selected from the group consisting of Al, Mn, Ag, Zn, Sn, As, Sb, Bi, N, O, and rare earth elements, “M” is one or more selected from the group consisting of Nb, Hf, Zr, Ta, Ti, Mo, W, and V, 0.030<a?0.14, 0.028?b?0.20, 0?c?0.030, 0<e?0.030, 0<f?0.040, ??0, ??0, and 0??+??0.50 are satisfied.
    Type: Grant
    Filed: January 26, 2018
    Date of Patent: May 10, 2022
    Assignee: TDK CORPORATION
    Inventors: Akihiro Harada, Hiroyuki Matsumoto, Kenji Horino, Kazuhiro Yoshidome, Akito Hasegawa, Hajime Amano, Kensuke Ara, Seigo Tokoro, Shota Otsuka
  • Patent number: 11244778
    Abstract: An R-T-B based permanent magnet wherein R is one or more rare earth elements, T is Fe and Co, and B is boron. The R-T-B based permanent magnet includes M, C and N, wherein M is two or more selected from Cu, Ga, Mn, Zr, and Al, and includes at least Cu and Ga. A total content of R is ?29.0 and ?33.5 mass %, Co content is ?0.10 and ?0.49 mass %, B content is ?0.80 and ?0.96 mass %, a total content of M is ?0.63 and ?4.00 mass %, Cu content is ?0.51 and ?0.97 mass %, Ga content is ?0.12 and ?1.07 mass %, C content is ?0.065 and ?0.200 mass %, N content is ?0.023 and ?0.323 mass %, and Fe is a substantial balance.
    Type: Grant
    Filed: March 18, 2020
    Date of Patent: February 8, 2022
    Assignee: TDK CORPORATION
    Inventors: Makoto Iwasaki, Akihiro Harada
  • Patent number: 11243549
    Abstract: The present invention is intended to improve the accuracy of control of a material gas by providing a valve with simplified wiring and a fluid supply line equipped with the valve. A valve V includes a valve body 3 and a driving pressure control device 4 coupled to the valve body 3.
    Type: Grant
    Filed: August 28, 2018
    Date of Patent: February 8, 2022
    Assignee: Fujikin Inc.
    Inventors: Ryutaro Tanno, Kenji Aikawa, Akihiro Harada, Yuya Suzuki, Takahiro Matsuda, Katsunori Komehana, Masahiko Ochiishi, Tsutomu Shinohara
  • Publication number: 20220025986
    Abstract: A fluid control device includes; upstream side and downstream side joint blocks defining a fluid flow path, and having engaging portions at a bottom surface side; a support member having a guide portion to which the engaging portions of the upstream side and downstream side joint blocks can be engaged; and a fluid device supported by the support member via the upstream side and the downstream side joint blocks; wherein the upstream side and the downstream side joint blocks are fixed to the guide portion by utilizing a reaction force against a bending force generated by the tightening force of fastening bolts to the upstream side and the downstream side joint blocks and the fluid device connected together, and the length of the engaging portions in the longitudinal direction of the joint blocks is formed shorter than the length of the joint blocks.
    Type: Application
    Filed: December 12, 2019
    Publication date: January 27, 2022
    Applicant: FUJIKIN INCORPORATED
    Inventors: Akihiro HARADA, Kenji AIKAWA
  • Publication number: 20220019187
    Abstract: A work management apparatus, method, and system enable to accurately manage position, tightening torque and other information for all fastening parts, for tightening work using a tool with a torque sensor. The system includes: a driver provided with a torque sensor; and first and second cameras that capture images of a product from different viewpoints. The torque sensor starts measurement of the tightening torque when a detected tightening torque exceeds a set threshold value, stops measurement of the tightening torque when the measurement data satisfies a predetermined condition, and outputs torque related data that includes measurement time. The system further includes: a PC that calculates coordinates of an engagement position of a bit from a plurality of image data captured by the first and the second cameras corresponding to the measurement time included in the torque related data; and a marker mounting device provided with a marker and removably mounted to the bit.
    Type: Application
    Filed: November 25, 2019
    Publication date: January 20, 2022
    Applicant: FUJIKIN INCORPORATED
    Inventors: Yuto KAWAUCHI, Yuya SUZUKI, Ryutaro TANNO, Akihiro HARADA, Tsutomu SHINOHARA
  • Patent number: 11226257
    Abstract: A fluid controller is provided having a flow path through which a fluid can flow, a closed space separated from the flow path by an isolation member, and a leak port capable of communicating the closed space with an external part. An anomaly detection device for detecting an anomaly has a pressure sensor detachably fixed to the leak port, a pressure sensor for detecting the pressure in the closed space, a processing module for executing a predetermined information processing, and an detachable mechanism for blocking the leak port from the external part in the state of being fixed. The processing module determines an anomaly of the fluid controller by comparing a detection value detected by the pressure sensor to a predetermined threshold, and transmits a discrimination result of the anomaly of the fluid controller to a server.
    Type: Grant
    Filed: February 6, 2018
    Date of Patent: January 18, 2022
    Assignee: Fujikin Inc.
    Inventors: Akihiro Harada, Kouji Nishino, Ryousuke Dohi, Koji Kawada, Katsuyuki Sugita, Nobukazu Ikeda, Michio Yamaji, Tsutomu Shinohara, Ryutaro Tanno, Yuto Kawauchi
  • Publication number: 20210394815
    Abstract: A vehicle steering apparatus, including: a steering column; a link member; an actuator including: a vehicle body side engaging portion, and a link side engaging portion, and when operated, the actuator changing a spacing between the vehicle body side engaging portion and the link side engaging portion, and swinging the steering column between the first position and the second position; a steering support that supports the steering column from the vehicle lower side in a state in which the steering column is disposed at the first position; and a clamp member provided at the link member, the clamp member being engaged with the steering support in the state in which the steering column is disposed at the first position, and the clamp member moving away from the steering support when the steering column is to swing from the first position toward the second position.
    Type: Application
    Filed: June 7, 2021
    Publication date: December 23, 2021
    Inventors: Masahiro Ohrui, Akira Kaneko, Akihiro Harada