Patents Assigned to Fuji Engineering Co., Ltd.
  • Patent number: 9987703
    Abstract: The plasma spraying apparatus includes a cathode, a first gas nozzle defining a first gas path between the cathode and itself, a second gas nozzle defining a second gas path between the first gas nozzle and itself, and a third gas nozzle disposed between the first and second gas nozzles to define a third gas path between the first and second gas paths. A wire is disposed at a distal end thereof in front of a nozzle opening of the second gas nozzle. A first gas sprayed through the first gas nozzle is turned into plasma flame, which melts the wire into droplets, and the droplets are sprayed onto a target by a second gas sprayed through the second gas nozzle. The third gas absorbs heat from the plasma flame to thereby turn into a high-temperature gas flow externally of the plasma flame.
    Type: Grant
    Filed: December 17, 2012
    Date of Patent: June 5, 2018
    Assignees: FUJI ENGINEERING CO., LTD., FUJIGIKEN CO., LTD., WEST NIPPON EXPRESSWAY COMPANY LIMITED
    Inventors: Masanobu Sugimoto, Kenichi Yamada, Masanobu Irie
  • Patent number: 9888557
    Abstract: A plasma spraying apparatus includes a cathode, a first gas nozzle surrounding a head of the cathode therewith to form a first gas path outside of the cathode, and a second gas nozzle surrounding the first gas nozzle therewith to form a second gas path outside of the first gas nozzle. The second gas nozzle is formed with a wire path through which a wire is inserted such that a distal end of the wire is disposed in front of a nozzle opening of the second gas nozzle. The wire path has a substantially rectangular cross section having a longer side extending in a direction in which a plasma flame extends, the wire path causing the wire to bend within an elastic limit of the wire.
    Type: Grant
    Filed: December 17, 2012
    Date of Patent: February 6, 2018
    Assignees: FUJI ENGINEERING CO., LTD., FUJIGIKEN CO., LTD., WEST NIPPON EXPRESSWAY COMPANY LIMITED
    Inventors: Masanobu Sugimoto, Kenichi Yamada, Masanobu Irie
  • Patent number: 9388330
    Abstract: The blasting material includes abrasives, and water in the range of 5 to 30 mass % both inclusive relative to a mass of the abrasives, the abrasives being prepared in advance such that all of the abrasives are uniformly wet.
    Type: Grant
    Filed: December 17, 2012
    Date of Patent: July 12, 2016
    Assignees: FUJI ENGINEERING CO., LTD., FUJIGIKEN CO., LTD., WEST NIPPON EXPRESSWAT COMPANY, LIMITED
    Inventors: Masanobu Sugimoto, Kenichi Yamada, Toshihiro Hara, Masanobu Irie
  • Patent number: 9238860
    Abstract: A method of carrying out post-treatment to a sprayed coating includes spraying aluminum-containing material onto a surface of a steel for forming a sprayed coating on the steel, and coating electrolytic aqueous solution or water base paint containing electrolytic aqueous solution therein onto the sprayed coating.
    Type: Grant
    Filed: December 17, 2012
    Date of Patent: January 19, 2016
    Assignees: FUJIGIKEN CO., LTD., FUJI ENGINEERING CO., LTD, WEST NIPPON EXPRESSWAY COMPANY LIMITED
    Inventors: Kenichi Yamada, Keisuke Fujikawa, Masanobu Sugimoto
  • Patent number: 8944735
    Abstract: The invention provides a sealer to be used for a bolt including a sprayed preservative coating coated onto at least a threaded portion. The sealer contains a wax therein in the range of 1 to 10 mass % both inclusive.
    Type: Grant
    Filed: December 17, 2012
    Date of Patent: February 3, 2015
    Assignees: Fuji Engineering Co., Ltd., Fujigiken Co., Ltd., West Nippon Expressway Company Limited
    Inventors: Masanobu Sugimoto, Yasuo Murayama, Kenichi Yamada, Yasutoshi Yamada
  • Publication number: 20140170937
    Abstract: The blasting material includes abrasives, and water in the range of 5 to 30 mass % both inclusive relative to a mass of the abrasives, the abrasives being prepared in advance such that all of the abrasives are uniformly wet.
    Type: Application
    Filed: December 17, 2012
    Publication date: June 19, 2014
    Applicants: FUJI ENGINEERING CO., LTD., WEST NIPPON EXPRESSWAY COMPANY LIMITED, FUJIGIKEN CO., LTD.
    Inventors: Masanobu SUGIMOTO, Kenichi YAMADA, Toshihiro HARA, Masanobu IRIE
  • Publication number: 20140166630
    Abstract: The plasma spraying apparatus includes a cathode, a first gas nozzle surrounding a head of the cathode therewith to form a first gas path outside of the cathode, and a second gas nozzle surrounding the first gas nozzle therewith to form a second gas path outside of the first gas nozzle. The second gas nozzle is formed with a wire path through which a wire is inserted such that a distal end of the wire is disposed in front of a nozzle opening of the second gas nozzle. The wire path has a substantially rectangular cross-section having a longer side extending in a direction in which the plasma flame extends, the wire path causing the wire to bend within elastic limit of the wire.
    Type: Application
    Filed: December 17, 2012
    Publication date: June 19, 2014
    Applicants: FUJI ENGINEERING CO., LTD., WEST NIPPON EXPRESSWAY COMPANY LIMITED, FUJIGIKEN CO., LTD.
    Inventors: Masanobu SUGIMOTO, Kenichi YAMADA, Masanobu IRIE
  • Publication number: 20140169911
    Abstract: The invention provides a sealer to be used for a bolt including a sprayed preservative coating coated onto at least a threaded portion. The sealer contains a wax therein in the range of 1 to 10 mass % both inclusive.
    Type: Application
    Filed: December 17, 2012
    Publication date: June 19, 2014
    Applicants: FUJI ENGINEERING CO., LTD., WEST NIPPON EXPRESSWAY COMPANY LIMITED, FUJIGIKEN CO., LTD.
    Inventors: Masanobu SUGIMOTO, Yasuo MURAYAMA, Kenichi YAMADA, Yasutoshi YAMADA
  • Publication number: 20140170323
    Abstract: A method of carrying out post-treatment to a sprayed coating includes spraying aluminum-containing material onto a surface of a steel for forming a sprayed coating on the steel, and coating electrolytic aqueous solution or water base paint containing electrolytic aqueous solution therein onto the sprayed coating.
    Type: Application
    Filed: December 17, 2012
    Publication date: June 19, 2014
    Applicants: FUJIGIKEN CO., LTD., WEST NIPPON EXPRESSWAY COMPANY LIMITED, FUJI ENGINEERING CO., LTD.
    Inventors: Kenichi YAMADA, Keisuke FUJIKAWA, Masanobu SUGIMOTO
  • Publication number: 20140166625
    Abstract: The plasma spraying apparatus includes a cathode, a first gas nozzle defining a first gas path between the cathode and itself, a second gas nozzle defining a second gas path between the first gas nozzle and itself, and a third gas nozzle disposed between the first and second gas nozzles to define a third gas path between the first and second gas paths. A wire is disposed at a distal end thereof in front of a nozzle opening of the second gas nozzle. A first gas sprayed through the first gas nozzle is turned into plasma flame, which melts the wire into droplets, and the droplets are sprayed onto a target by a second gas sprayed through the second gas nozzle. The third gas absorbs heat from the plasma flame to thereby turn into a high-temperature gas flow externally of the plasma flame.
    Type: Application
    Filed: December 17, 2012
    Publication date: June 19, 2014
    Applicants: FUJI ENGINEERING CO., LTD., WEST NIPPON EXPRESSWAY COMPANY LIMITED, FUJIGIKEN CO., LTD.
    Inventors: Masanobu SUGIMOTO, Kenichi YAMADA, Masanobu IRIE
  • Patent number: 5213304
    Abstract: A buffered valve having a longitudinal passage leading to a valve chamber. The valve chamber is divided by a spacer into a front and rear chamber which are connected by a port in the spacer. A normally closed main valve member is in the front chamber which blocks the longitudinal passage. A sub-valve which has a vessel or cup-like configuration is in the rear valve chamber and is biased toward the port in the spacer by a coil spring. The sub-valve has a through hole which is blocked by a check valve. Adjustable passages are provided for connecting between the front and rear chambers of the valve. When the main valve opens, the flow of fluid from behind the main valve member to the rear chamber is restricted by the port in the spacer and the sub-valve assembly to provide a buffered valve action. When the main valve is closing, the flow of fluid is again restricted by the passage in the sub-valve and the port in the spacer to provide a buffered action.
    Type: Grant
    Filed: September 2, 1992
    Date of Patent: May 25, 1993
    Assignee: Fuji Engineering Co., Ltd
    Inventor: Toshihiro Fujikawa
  • Patent number: 4830045
    Abstract: A main fluid passageway is provided in a main valve body between first and second ports formed and an auxiliary passageway having its opposite ends closed is also formed in the valve main body so as to intersect the main passageway. A spool is slidably mounted in the auxiliary passageway and gap spaces are provided at the opposite ends of the spool. One of the gap spaces communicates with the first port, while the other gap space communicates with the second port. A locking section is provided on the spool and a cooperating latch is provided in the valve main body. Upon occurrence of an emergency, the spool is moved to shut off the main passageway and the latch is caused to engage the locking section resulting in generation of an alarm. Under such condition, even if the pressure of the fluid at the valve varies, the locked condition of the spool can be maintained.
    Type: Grant
    Filed: July 11, 1988
    Date of Patent: May 16, 1989
    Assignee: Fuji Engineering Co., Ltd.
    Inventors: Toshihiro Fujikawa, Itsu Itoh, Mitsuru Urashima