Patents Assigned to Tokai Seiki Co., Ltd.
  • Patent number: 8453568
    Abstract: In a screen printing apparatus, a first printing table and a second printing table are alternately driven to move horizontally between a workpiece introducing section and a workpiece printing section by a table driving unit. The table driving unit is constituted so that the first printing table is vertically moved from a first level to a second level during the horizontal movement of the first printing table, and so that the second printing table is maintained at the first level during the horizontal movement of the second printing table, whereby the first printing table can pass by the second printing table without interference therebetween when these tables meet each other. In either of the workpiece introducing section and the workpiece printing section, each of the first and second printing tables is always located at the same first level, and thus an unprocessed workpiece (W) loaded onto each of the first and second tables can be subjected to a screen printing process in the same control manner.
    Type: Grant
    Filed: May 28, 2010
    Date of Patent: June 4, 2013
    Assignees: Tokai Seiki Co., Ltd., Tokai Shoji Co., Ltd
    Inventors: Naoki Naoi, Kazushi Goto, Takashi Suzuki, Motoshi Tanaka
  • Publication number: 20100313773
    Abstract: In a screen printing apparatus, a first printing table and a second printing table are alternately driven to move horizontally between a workpiece introducing section and a workpiece printing section by a table driving unit. The table driving unit is constituted so that the first printing table is vertically moved from a first level to a second level during the horizontal movement of the first printing table, and so that the second printing table is maintained at the first level during the horizontal movement of the second printing table, whereby the first printing table can pass by the second printing table without interference therebetween when these tables meet each other. In either of the workpiece introducing section and the workpiece printing section, each of the first and second printing tables is always located at the same first level, and thus an unprocessed workpiece (W) loaded onto each of the first and second tables can be subjected to a screen printing process in the same control manner.
    Type: Application
    Filed: May 28, 2010
    Publication date: December 16, 2010
    Applicants: TOKAI SEIKI CO., LTD, TOKAI SHOJI CO., LTD
    Inventors: Naoki Naoi, Kazushi Goto, Takashi Suzuki, Motoshi Tanaka
  • Patent number: 5232544
    Abstract: A dual-purpose apparatus for selectively applying an emulsion onto a mesh screen of a screen printing plate and attaching an emulsion layer-containing film to the screen, comprises a printing plate support for supporting the screen printing plate, a film feed device for feeding the emulsion layer-containing film, a film guiding-and-cutting mechanism for guiding the emulsion layer-containing film along the mesh screen of the screen printing plate, and a pressing-and-applying mechanism for pressing the emulsion layer-containing film and for applying the emulsion onto the mesh screen. The pressing-and-applying mechanism includes a support for replaceably supporting a pressure roller unit or an emulsion bucket.
    Type: Grant
    Filed: November 13, 1990
    Date of Patent: August 3, 1993
    Assignees: Tokai Shoji Co., Ltd., Tokai Seiki Co., Ltd.
    Inventor: Nobuyuki Sumi
  • Patent number: 5070782
    Abstract: A screen printer comprising a squeegee for applying a printing material to a work face when the squeegee moves on an upper side face of a screen while being kept in contact therewith, a doctor for uniforming a thickness of the printing material left on the upper side face of the screen, and a cleaner including a scraping bucket which moves on the underside face of the screen while being kept in contact therewith so as to scrape the printing material attached to the underside face of the screen upon applying operation of the squeegee. The scraping bucket comprises a bucket body formed into a concave shape with an open top in profile, and a scraping strip formed on an end of one side wall of the bucket body, which is inclined toward an advance direction of the scraping bucket.
    Type: Grant
    Filed: June 5, 1990
    Date of Patent: December 10, 1991
    Assignees: Tokai Shoji Co., Ltd., Tokai Seiki Co., Ltd.
    Inventors: Shigekazu Sakai, Masahiko Ishida
  • Patent number: 4876957
    Abstract: An apparatus for applying an emulsion screen film of screen-printing is disclosed, which includes a support frame for vertically supporting a screen-printing plate and for holding a rolled emulsion screen film above the screen-printing plate, a film guiding- and cutting-mechanism for guiding and positioning the unrolled emulsion screen film in contact with a screen surface of the screen-printing plate from its upper portion and for cutting the film at a predetermined length, and a pressing- and applying-mechanism for pressing the emulsion screen film against the screen surface at its lower portion and for supplying an emulsion onto an opposite side of the screen surface relative to the contacted screen side while sliding upwardly in contact with the screen surface.
    Type: Grant
    Filed: September 14, 1987
    Date of Patent: October 31, 1989
    Assignees: Tokai Shoji Co., Ltd., Tokai Seiki Co., Ltd.
    Inventor: Shigekazu Sakai
  • Patent number: 4471404
    Abstract: An electronic gas lighter is provided with an electricity generating device having a movable electrode. A movable part carrying the movable electrode is moved downward to ignite fuel discharged from a nozzle disposed on a fuel tank. A partition is provided between the movable part and the nozzle.
    Type: Grant
    Filed: August 5, 1983
    Date of Patent: September 11, 1984
    Assignee: Tokai Seiki Co., Ltd.
    Inventor: Tomio Nitta
  • Patent number: 4466788
    Abstract: In an electronic gas lighter comprising a plastic body, a flame orifice cap having a flame orifice aligned with a fuel outlet nozzle, and an electronic ignition means, the flame orifice cap is provided with a vent opening and a heat dissipating plate. The heat dissipating plate integrally extends from the flame orifice cap along the flow of fuel gas discharged from the nozzle.
    Type: Grant
    Filed: August 18, 1983
    Date of Patent: August 21, 1984
    Assignee: Tokai Seiki Co., Ltd.
    Inventor: Tomio Nitta
  • Patent number: 4457699
    Abstract: A valve for a cigaret gas lighter is comprised of a flexible gas conduit extending between a nozzle and a gas tank. The flexible gas conduit is pinched or bent to close the conduit. An operating member pinches or bends the gas conduit to close the conduit by a spring. A manually operable lever is provided to open the conduit by removing the operating member overcoming the spring force. In a preferred embodiment of the invention, the conduit is positively opened in addition to removal of the operating member when the gas lighter is to be ignited.
    Type: Grant
    Filed: June 16, 1983
    Date of Patent: July 3, 1984
    Assignee: Tokai Seiki Co., Ltd.
    Inventor: Tadamichi Hattori
  • Patent number: 4289478
    Abstract: In a cigaret gas lighter having a plastic gas tank and a burner mounted thereon, a heat collecting tube or rod is provided along the wick of the lighter hanging from the burner to the liquified fuel gas in the tank. The upper end of the heat collecting tube or rod is in direct contact with the lower surface of a pin disk located within the burner to effectively transmit heat to the pin disk that is disposed beneath the nozzle bottom in the burner.
    Type: Grant
    Filed: September 20, 1979
    Date of Patent: September 15, 1981
    Assignee: Tokai Seiki Co., Ltd.
    Inventor: Tomio Nitta
  • Patent number: 4201537
    Abstract: A fuel tank of a disposable cigarette gas lighter is constituted of a tubular tank body of uniform cross section having a plurality of borings, a bottom cap attached to the lower end of the tank body and a lighting means holder attached to the upper end of the tank body. A part of the wall between the borings of the tank body is removed at either end thereof to provide a communicating path between the borings. The tank body which shares the major portion of the fuel tank is produced by cutting a continuous pipe of uniform cross section having a plurality of borings made by extrusion molding.
    Type: Grant
    Filed: February 9, 1978
    Date of Patent: May 6, 1980
    Assignee: Tokai Seiki Co., Ltd.
    Inventor: Tomio Nitta
  • Patent number: 4190412
    Abstract: A disposable cigarette gas lighter has a snuffing cover on a plastic fuel reservoir. The snuffing cover is rotatably mounted on the lighter independently of a sparking wheel. When lighting the lighter, the snuffing cover is opened with the thumb which is used for rotating the sparking wheel so that the snuffing cover will be opened when the sparking wheel is rotated. When closing the snuffing cover, the snuffing cover is closed independently of the sparking wheel. Further, the snuffing cover can be opened without rotating the sparking wheel so that the sparking wheel is not rotated when the snuffing cover is accidentally opened.
    Type: Grant
    Filed: December 22, 1977
    Date of Patent: February 26, 1980
    Assignee: Tokai Seiki Co., Ltd.
    Inventor: Tomio Nitta
  • Patent number: 4181490
    Abstract: A disposable cigaret lighter has a snuffing cover which is closed when the flame is to be put out. The snuffing cover is provided on the top of the lighter independent of any of the operating members of the lighter such as a nozzle opening lever and a sparking wheel. The snuffing cover may be mounted on the windbreak wall of the lighter slidably or rotatably.
    Type: Grant
    Filed: June 17, 1977
    Date of Patent: January 1, 1980
    Assignee: Tokai Seiki Co., Ltd.
    Inventor: Tomio Nitta
  • Patent number: 4073612
    Abstract: A disposable cigarette gas lighter employing a plastic gas tank is provided on the face of the gas tank with a printed sheet carrying thereon publicity information. The gas tank is provided with a recess to receive the printed sheet and a plastic lens is attached thereover. Otherwise, the plastic lens is provided on the back surface thereof with a recess to receive the printed sheet. The plastic lens is formed as a cylindrical positive lens.
    Type: Grant
    Filed: March 17, 1976
    Date of Patent: February 14, 1978
    Assignee: Tokai Seiki Co., Ltd.
    Inventor: Tomio Nitta
  • Patent number: D245345
    Type: Grant
    Filed: March 30, 1976
    Date of Patent: August 9, 1977
    Assignee: Tokai Seiki Co., Ltd.
    Inventor: Tomio Nitta