Patents by Inventor Naofumi Yasumoto

Naofumi Yasumoto 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: 20210141399
    Abstract: A flow rate control device 100 includes a control valve 6 provided in a flow path 1, a flow rate measurement unit 2, 3 for measuring fluid flow rate controlled by the control valve 6, and a controller 7. The controller 7 is configured so as to control the opening/closing operation of the control valve 6 to match the measurement integral flow rate based on the signal outputted from the flow rate measurement unit (Vn+Vd) to the target integral flow rate Vs.
    Type: Application
    Filed: February 15, 2019
    Publication date: May 13, 2021
    Applicant: FUJIKIN INCORPORATED
    Inventors: Katsuyuki SUGITA, Kouji NISHINO, Naofumi YASUMOTO, Kaoru HIRATA, Shinya OGAWA, Keisuke IDEGUCHI
  • Patent number: 10573801
    Abstract: A piezoelectric linear actuator comprising a laminated piezoelectric actuator having a cylindrical shape; a lower support member supporting the laminated piezoelectric actuator and extending laterally to the left and right of the laminated piezoelectric actuator; a pair of displacement transfer members extending along the left and right sides of the laminated piezoelectric actuator, respectively, to slidably intersect the lower support member and transferring displacement due to the piezoelectric effect of the laminated piezoelectric actuator; and an output part locked to the pair of displacement transfer members below the lower support member and coupling lower end portions of the displacement transfer members, wherein the pair of displacement transfer members are formed to have a width dimension that is the same or substantially the same as the width dimension of the laminated piezoelectric actuator.
    Type: Grant
    Filed: August 9, 2016
    Date of Patent: February 25, 2020
    Assignee: FUJIKIN INCORPORATED
    Inventors: Kohei Shigyou, Takashi Hirose, Kouji Nishino, Ryousuke Dohi, Naofumi Yasumoto
  • Patent number: 10385998
    Abstract: Passage members each have a required width, a required height, and a required length, and are provided at middle portions in the width direction with fluid passages, respectively. As coupling means, two bolts are used. The middle portion in the width direction of each of the passage members has opposite end portions that are each provided with a female screw and a bolt insertion hole to be faced by the female screw, respectively. The upper bolt is inserted into one of the passage members and is screwed into the female screw of the other passage member. The lower bolt is inserted into the other passage member and is screwed into the female screw of the one of the passage members. The passage members are coupled with use of the two upper and lower bolts whereby a seal member is securely fixed.
    Type: Grant
    Filed: August 10, 2016
    Date of Patent: August 20, 2019
    Assignee: FUJIKIN INCORPORATED
    Inventors: Kohei Shigyou, Takashi Hirose, Kouji Nishino, Ryousuke Dohi, Naofumi Yasumoto
  • Patent number: 10309561
    Abstract: A flow passage sealing structure for omitting a process of welding or caulking an orifice plate and a filter plate to an orifice base and a filter base as base materials and allowing further miniaturization, includes a main block (1) including main flow passages (1a, 1b), recessed portions (12, 13) provided in side surfaces of the main block and having female screws in inner peripheral surfaces, thin plates (6, 8) abutting against the bottom surfaces of the recessed portions and having through holes, gasket rings (16, 17) abutting against the thin plates (6, 8), pressing pipelines (20, 21) having large-diameter portions and internal flow passages communicable with the main flow passages (1a, 1b) and abutting against the gasket rings, and fastening screws (22) abutting against the large-diameter portions and pressing the pressing pipelines by being inserted around the outside of the pressing pipelines and screwed into the female screws.
    Type: Grant
    Filed: December 22, 2014
    Date of Patent: June 4, 2019
    Assignee: FUJIKIN INCORPORATED
    Inventors: Ryousuke Dohi, Naofumi Yasumoto, Kouji Nishino, Nobukazu Ikeda
  • Patent number: 10156295
    Abstract: A piezoelectric linear actuator includes a laminated piezoelectric actuator, a lower support member that supports the laminated piezoelectric actuator, a pressing member that biases the laminated piezoelectric actuator from the top thereof, a guide member connected to the lower support member to guide the pressing member; and a displacement transmission member which includes a pair of displacement transmission plates, an adjustment screw connected to the pair of displacement transmission plates, an output section connected to the pair of displacement transmission plates, and an elastic body that biases the output section downward.
    Type: Grant
    Filed: February 10, 2015
    Date of Patent: December 18, 2018
    Assignee: Fujikin Incorporated
    Inventors: Naofumi Yasumoto, Ryousuke Dohi, Kouji Nishino, Nobukazu Ikeda, Kohei Shigyou
  • Publication number: 20180240961
    Abstract: A piezoelectric linear actuator comprising a laminated piezoelectric actuator having a cylindrical shape; a lower support member supporting the laminated piezoelectric actuator and extending laterally to the left and right of the laminated piezoelectric actuator; a pair of displacement transfer members extending along the left and right sides of the laminated piezoelectric actuator, respectively, to slidably intersect the lower support member and transferring displacement due to the piezoelectric effect of the laminated piezoelectric actuator; and an output part locked to the pair of displacement transfer members below the lower support member and coupling lower end portions of the displacement transfer members, wherein the pair of displacement transfer members are formed to have a width dimension that is the same or substantially the same as the width dimension of the laminated piezoelectric actuator.
    Type: Application
    Filed: August 9, 2016
    Publication date: August 23, 2018
    Applicant: FUJIKIN INCORPORATED
    Inventors: Kohei SHIGYOU, Takashi HIROSE, Kouji NISHINO, Ryousuke DOHI, Naofumi YASUMOTO
  • Publication number: 20180112805
    Abstract: Passage members each have a required width, a required height, and a required length, and are provided at middle portions in the width direction with fluid passages, respectively. As coupling means, two bolts are used. The middle portion in the width direction of each of the passage members has opposite end portions that are each provided with a female screw and a bolt insertion hole to be faced by the female screw, respectively. The upper bolt is inserted into one of the passage members and is screwed into the female screw of the other passage member. The lower bolt is inserted into the other passage member and is screwed into the female screw of the one of the passage members. The passage members are coupled with use of the two upper and lower bolts whereby a seal member is securely fixed.
    Type: Application
    Filed: August 10, 2016
    Publication date: April 26, 2018
    Inventors: Kohei Shigyou, Takashi Hirose, Kouji Nishino, Ryousuke Dohi, Naofumi Yasumoto
  • Publication number: 20170037987
    Abstract: A flow passage sealing structure for omitting a process of welding or caulking an orifice plate and a filter plate to an orifice base and a filter base as base materials and allowing further miniaturization, includes a main block (1) including main flow passages (1a, 1b), recessed portions (12, 13) provided in side surfaces of the main block and having female screws in inner peripheral surfaces, thin plates (6, 8) abutting against the bottom surfaces of the recessed portions and having through holes, gasket rings (16, 17) abutting against the thin plates (6, 8), pressing pipelines (20, 21) having large-diameter portions and internal flow passages communicable with the main flow passages (1a, 1b) and abutting against the gasket rings, and fastening screws (22) abutting against the large-diameter portions and pressing the pressing pipelines by being inserted around the outside of the pressing pipelines and screwed into the female screws.
    Type: Application
    Filed: December 22, 2014
    Publication date: February 9, 2017
    Inventors: Ryousuke DOHI, Naofumi YASUMOTO, Kouji NISHINO, Nobukazu IKEDA
  • Publication number: 20160363231
    Abstract: A piezoelectric linear actuator includes a laminated piezoelectric actuator, a lower support member that supports the laminated piezoelectric actuator, a pressing member that biases the laminated piezoelectric actuator from the top thereof, a guide member connected to the lower support member to guide the pressing member; and a displacement transmission member which includes a pair of displacement transmission plates, an adjustment screw connected to the pair of displacement transmission plates, an output section connected to the pair of displacement transmission plates, and an elastic body that biases the output section downward.
    Type: Application
    Filed: February 10, 2015
    Publication date: December 15, 2016
    Applicant: Fujikin Incorporated
    Inventors: Naofumi Yasumoto, Ryousuke Dohi, Kouji Nishino, Nobukazu Ikeda, Kohei Shigyou
  • Publication number: 20090202957
    Abstract: Provided are a heating method making it possible that when a gas inside the body of a piping member, such as a pipe, is heated, the heating efficiency is improved; and a gas-heating piping member making it possible to perform such a heating method easily. A heat keeping member 4 which can transmit a gas to be heated is inserted to the inside of a piping member body 1 into which the gas can be passed in a state that the heat keeping member is brought into close contact with the inside, and further the piping member body 1 is heated from the outside thereof by means of a heating means 2.
    Type: Application
    Filed: August 2, 2005
    Publication date: August 13, 2009
    Inventors: Nobukazu Ikeda, Akihiro Morimoto, Naofumi Yasumoto, Michio Yamaji, Tsuyoshi Tanikawa, Tadayuki Yakushijin, Hidehiro Doya
  • Publication number: 20090165534
    Abstract: A method for testing leakage of a pipe passage employs a flow rate of gas used in testing supplied to the inside of a pipe passage undergoing testing hermetically sealed on one side while detecting flow rate with a flow measuring device and pressure with a pressure detector, and detecting temperature of the gas used, and inputting the detected values of pressure, flow rate and temperature into a computation treatment apparatus, and internal capacity VL of the pipe passage is computed as VL=(supplied flow rate Q×pressure applied time ?t)/(pressure rise value ?P2), and next, the volume QL leaked from the pipe passage is computed as QL=(pressure drop value ?P2?×internal capacity VL)/(pressure drop time ?t?).
    Type: Application
    Filed: March 7, 2007
    Publication date: July 2, 2009
    Applicants: FUJIKIN INCORPORATION, S.E.S. CO., LTD.
    Inventors: Gisuke Kohno, Teruo Hon'Iden, Akihiro Morimoto, Naofumi Yasumoto, Koji Kawada, Yutaka Ueji, Nobukazu Ikeda, Masayuki Hatano, Michio Kuramochi, Yoshiyuki Kindai, Kazuhiro Nagano, Toshiaki Wada
  • Patent number: 7497482
    Abstract: A pipe joint comprises a first joint member of synthetic resin having an annular recessed portion in an end face thereof, and a second joint member of synthetic resin having an annular ridge on an end face thereof. The ridge is fitted in the opening of the recessed portion, with a synthetic resin gasket fitted in the recessed portion. When the pipe joint is properly tightened up, the outer surface of the ridge of the second joint member is pressed against the inner surface of the recessed portion of the first joint member with the gasket interposed therebetween in intimate contact with the surfaces approximately over the entire areas thereof.
    Type: Grant
    Filed: March 19, 2003
    Date of Patent: March 3, 2009
    Assignee: Fujikin Incorporated
    Inventors: Kazuhiko Sugiyama, Keiko Hada, Eiji Ideta, Nobukazu Ikeda, Naofumi Yasumoto, Michio Yamaji
  • Publication number: 20050179259
    Abstract: A pipe joint 1 comprises a first joint member 2 of synthetic resin having an annular recessed portion 7 in an end face thereof, and a second joint member 3 of synthetic resin having an annular ridge 8 on an end face thereof. The ridge 8 is fitted in the opening of the recessed portion 7, with a synthetic resin gasket 4 fitted in the recessed portion 7.
    Type: Application
    Filed: March 19, 2003
    Publication date: August 18, 2005
    Inventors: Kazuhiko Sugiyama, Keiko Hada, Eiji Ideta, Nobukazu Ikeda, Naofumi Yasumoto, Michio Yamaji
  • Patent number: 6394415
    Abstract: A fluid control valve, which can control a fluid having a pressure in the order of 10 kg/cm2, has a response time in the order of several milliseconds can be made small in size, and a fluid supply/exhaust system that provides less gas counter flow in the event of a plurality of valves being used. A fluid control valve of the invention controls a fluid moving in a valve body by closing and opening a portion between a valve seat and a valve holder by use of a drive unit. The drive unit has a rod-shaped shaft for application of pressure through the valve seat and the valve holder, and a member “a” fixed around the rod-shaped shaft. The member “a” is made from a magnetic material, and has a space between it and the shaft. A coil provided in parallel to the shaft, moves the shaft via the member “a” up and down by electromagnetic induction, and makes use of a spring force to close and open a portion between the valve seat and the valve holder.
    Type: Grant
    Filed: July 27, 2000
    Date of Patent: May 28, 2002
    Assignees: Fujikin, Inc., Tohoku Steel Co., Ltd.
    Inventors: Tadahiro Ohmi, Migaku Takahashi, Michio Yamaji, Tsuyoshi Tanikawa, Nobukazu Ikeda, Ryosuke Dohi, Kouji Nishino, Naofumi Yasumoto, Hiroyuki Fukuda, Tomio Uno, Yasuyuki Yanai
  • Patent number: 6193212
    Abstract: A fluid control valve, which can control a fluid having a pressure in the order of 10 kg/cm2, has a response time in the order of several milliseconds can be made small in size, and a fluid supply/exhaust system that provides less gas counter flow in the event of a plurality of valves being used. A fluid control valve of the invention controls a fluid moving in a valve body by closing and opening a portion between a valve seat and a valve holder by use of a drive unit. The drive unit has a rod-shaped shaft for application of pressure through the valve seat and the valve holder, and a member “a” fixed around the rod-shaped shaft. The member “a” is made from a magnetic material, and has a space between it and the shaft. A coil provided in parallel to the shaft, moves the shaft via the member “a” up and down by electromagnetic induction, and makes use of a spring force to close and open a portion between the valve seat and the valve holder.
    Type: Grant
    Filed: July 23, 1999
    Date of Patent: February 27, 2001
    Assignees: Tohoku Steel Co., Ltd., Fujiken Inc.
    Inventors: Tadahiro Ohmi, Migaku Takahashi, Michio Yamaji, Tsuyoshi Tanikawa, Nobukazu Ikeda, Ryosuke Dohi, Kouji Nishino, Naofumi Yasumoto, Hiroyuki Fukuda, Tomio Uno, Yasuyuki Yanai
  • Patent number: 6129098
    Abstract: An apparatus for injecting constant quantitative chemicals which is capable of injecting a chemical solution into ultra pure water without generating particulate contamination, and furthermore, the injection interval of the chemical solution to the cleaning nozzle is controlled in units of seconds within a range of a few seconds to 10 or more seconds, and the switching of the type of chemical solution and the changeover to ultra pure water cleaning can be conducted in a short period of time of approximately 1 second.
    Type: Grant
    Filed: August 25, 1998
    Date of Patent: October 10, 2000
    Assignees: Kabushiki Kaisha Ultraclean Technology Research Institute, Fujiken, Inc.
    Inventors: Nobuhiro Miki, Takahisa Nitta, Tadahiro Ohmi, Nobukazu Ikeda, Naofumi Yasumoto
  • Patent number: 5609077
    Abstract: A tightening device comprises an upper plate, a lower plate disposed below the upper plate in parallel thereto, a nut rotating gear supported by the lower plate so as to be rotatable in a horizontal plane, and a spur gear provided on an underside of the upper plate and meshable with the nut rotating gear for rotating the nut rotating gear. The upper plate has a portion fittable to a flange of an externally threaded member for preventing the rotation of the threaded member, while the nut rotating gear has a portion fittable to a nut. With the nut manually tightened on the threaded member in advance, the flange fitting portion of the upper plate is fitted to the flange, the nut is fitted in the fitting portion of the nut rotating gear, and the spur gear is thereafter rotated, whereby the nut rotating gear is driven to tighten up the nut on the threaded member.
    Type: Grant
    Filed: August 20, 1996
    Date of Patent: March 11, 1997
    Assignee: Fujikin Incorporated
    Inventors: Tadahiro Ohmi, Nobukazu Ikeda, Ryosuke Dohi, Kunio Nagai, Eiji Ideta, Koji Nishino, Michio Yamaji, Tsutomu Shinohara, Naofumi Yasumoto
  • Patent number: D820394
    Type: Grant
    Filed: April 20, 2016
    Date of Patent: June 12, 2018
    Assignee: FUJIKIN INCORPORATED
    Inventors: Kohei Shigyou, Takashi Hirose, Kouji Nishino, Ryousuke Dohi, Naofumi Yasumoto
  • Patent number: D820395
    Type: Grant
    Filed: April 20, 2016
    Date of Patent: June 12, 2018
    Assignee: FUJIKIN INCORPORATED
    Inventors: Kohei Shigyou, Takashi Hirose, Kouji Nishino, Ryousuke Dohi, Naofumi Yasumoto
  • Patent number: D879248
    Type: Grant
    Filed: January 15, 2018
    Date of Patent: March 24, 2020
    Assignee: FUJIKIN INCORPORATED
    Inventors: Kohei Shigyou, Takashi Hirose, Kouji Nishino, Ryousuke Dohi, Naofumi Yasumoto