Patents Assigned to Toshiba Kikai Kabushiki Kaisha
  • Patent number: 10493565
    Abstract: On at least the edge portion (9e) of the lip portion (9) of a T-die (1), a cladding layer (10) is provided. The cladding layer is formed by laser build-up welding to a base material with a powder of a corrosion resistant and wear resistant alloy comprising a nickel-based alloy or a cobalt-based alloy. The cladding layer has a metallographic structure in which metal borides are dispersed in a binder phase. The lip portion has high quality and has high durability. The manufacturing costs of the T-die can also be kept relatively low.
    Type: Grant
    Filed: September 13, 2016
    Date of Patent: December 3, 2019
    Assignee: Toshiba Kikai Kabushiki Kaisha
    Inventors: Shuhei Honma, Ryota Oke, Yosuke Ogino, Tomonori Yamaguchi, Seiya Mizuno
  • Patent number: 10493521
    Abstract: A die casting machine includes a clamping device which opens and closes and clamps a pair of die halves, an injection apparatus which performs injection to the pair of die halves by making a plunger move forward in a sleeve communicated with a space between the pair of die halves, and a control device which controls the clamping device and injection apparatus. The control device includes an injection control part and press-use clamping control part. The injection control part controls the injection apparatus so as to start the injection in a state where the pair of die halves face each other through a gap. The press-use clamping control part controls the clamping device so that the die contact and clamping are carried out after the start of injection. Further, the injection control part performs control for decelerating the plunger before the plunger stops.
    Type: Grant
    Filed: May 1, 2017
    Date of Patent: December 3, 2019
    Assignee: Toshiba Kikai Kabushiki Kaisha
    Inventors: Kouei Nakata, Satoru Aida, Toshiaki Toyoshima
  • Patent number: 10486380
    Abstract: It is an object of the present invention to provide a light diffusing lens production apparatus which makes it possible to efficiently produce a high-quality light diffusing lens having enhanced optical properties.
    Type: Grant
    Filed: September 9, 2015
    Date of Patent: November 26, 2019
    Assignee: Toshiba Kikai Kabushiki Kaisha
    Inventor: Ryuichi Katsumata
  • Publication number: 20190352472
    Abstract: In a production method for a conductive composite material for an extruder that continuously discharges a kneaded product produced by kneading a raw material using a screw, the screw has a the screw body, the raw material transported along an outer circumferential surface of the screw body receives increased pressure by a barrier part in a transport part and is introduced to a passage from an inlet, and while the kneaded product is continuously discharged, the raw material transported along the outer circumferential surface of the screw body flows in the passage of the extruder and then is guided to the transport part via an outlet provided in the screw body, the raw material contains a conductive filler and a thermoplastic elastomer.
    Type: Application
    Filed: May 15, 2019
    Publication date: November 21, 2019
    Applicants: TOSHIBA KIKAI KABUSHIKI KAISHA, HSP TECHNOLOGIES INC.
    Inventors: Takafumi SAMESHIMA, Yoshio IIZUKA, Kaho OSADA, Hiroshi SHIMIZU
  • Patent number: 10464242
    Abstract: A convey device, which conveys an insert member into a die, includes a holding device configured to hold the insert member in an attitude in which a major surface of the insert member is in a substantially gravitational direction; a convey mechanism configured to convey the insert member to the die, while the insert member is being held in the attitude by the holding device; and a heating device configured to heat the insert member. The insert member can be heated by the heating device before the insert member is disposed in the die.
    Type: Grant
    Filed: December 3, 2018
    Date of Patent: November 5, 2019
    Assignee: TOSHIBA KIKAI KABUSHIKI KAISHA
    Inventors: Jun Koike, Akira Yoshinaga, Nobuyuki Asanuma
  • Publication number: 20190321929
    Abstract: A machine tool includes a mounting table, a tool, a shade detector, and a tool controller. A workpiece is placed on the mounting table. The tool includes a tip. The shade detector is fixed on the mounting table, provides an optical path of a laser light, and detects a shade state of the laser light. The tool controller is connected to the mounting table via a supporting structure and controls an orientation and a position of the tool. A reference point associated with the tool is provided to the tool controller. The tool controller corrects a position of the tip based on a difference between a position obtained by calculation of the reference point in the case where the tip is matched with a measurement position P of a laser light and a position of the reference point when the tip portion is actually matched with a measurement position while keeping the orientation of a tool.
    Type: Application
    Filed: May 16, 2019
    Publication date: October 24, 2019
    Applicant: TOSHIBA KIKAI KABUSHIKI KAISHA
    Inventors: YUSUKE ISHII, ATSUSHI TADA
  • Patent number: 10449604
    Abstract: In an injection cylinder which can be connected with a plunger, the internal portion of the cylinder part is partitioned by a piston into a rod-side chamber on the side of the piston rod and a head-side chamber on the opposite side. An accumulator can supply a hydraulic fluid to the head-side chamber. A head-use pressure sensor can detect a pressure of the head-side chamber. A flow control valve can control a flow rate of the hydraulic fluid discharged from the rod-side chamber. A control device includes an OP control part which starts open control driving the flow control valve to the opening direction after the start of supply of the hydraulic fluid from the accumulator to the head-side chamber conditional on the detection pressure of the head-use pressure sensor rising up to the predetermined set value.
    Type: Grant
    Filed: April 4, 2018
    Date of Patent: October 22, 2019
    Assignee: Toshiba Kikai Kabushiki Kaisha
    Inventor: Hiroshi Yokoyama
  • Patent number: 10434697
    Abstract: A barrel main body, a sleeve, and a fixing mechanism (a fastening hole and a fastening device) are provided. The barrel main body includes a barrel hole having a cylindrical shape and a slit dividing an inner circumferential surface of the barrel hole. The sleeve having a hollow cylindrical shape is removably incorporated into the barrel hole. The slit includes two cutout surfaces facing each other with a space between. The fixing mechanism brings the inner circumferential surface of the barrel hole into close contact with the sleeve without any gap by narrowing the space between the cutout surfaces and deforming the barrel main body.
    Type: Grant
    Filed: November 21, 2017
    Date of Patent: October 8, 2019
    Assignee: Toshiba Kikai Kabushiki Kaisha
    Inventors: Shozo Suzuki, Masatoshi Ohara, Yasuhiro Maekawa
  • Patent number: 10391553
    Abstract: A die casting machine includes a plurality of ejector pins capable of advancing and retracting together with respect to the internal portion of a die; an electric motor capable of driving the plurality of ejector pins; a position sensor capable of detecting the positions of the plurality of ejector pins; a force sensor capable of detecting the pressure which is given to the molding material inside the die by the plurality of ejector pins; a display device capable of displaying images, and a control device controlling the electric motor and display device. The control device includes a drive control part which controls the electric motor so as to generate a driving force making the plurality of ejector pins advance to the inside of the die after the start of injection and before die opening, and a display control part which controls the display device so as to display the position detected by a position sensor and the pressure detected by a force sensor along a common time axis.
    Type: Grant
    Filed: November 2, 2017
    Date of Patent: August 27, 2019
    Assignee: Toshiba Kikai Kabushiki Kaisha
    Inventors: Hiroki Amezawa, Satoru Aida, Toshiaki Toyoshima
  • Patent number: 10384383
    Abstract: The present invention provides a movable platen support apparatus which, with a linear guide having a minimum necessary load rating, can secure a sufficient traveling life of the linear guide and, in addition, can secure the rigidity of the linear guide which is necessary and sufficient taking into consideration a moment that acts on a movable platen. A movable platen support apparatus 40 according to the present invention includes a guide mechanism which movably engages a rail 41 extending on a frame 11 in the direction of movement of a movable platen 16, to which a movable mold 19 is to be mounted, and which movably supports the movable platen 16. The guide mechanism includes a linear guide 42 composed of blocks 42a to 42d arranged in a line, in which at least one of the blocks 42a to 42d, e.g. the blocks 42b, 42c, has a load rating which differs from the load rating(s) of the other block(s), e.g. the blocks 42a, 42d.
    Type: Grant
    Filed: August 25, 2015
    Date of Patent: August 20, 2019
    Assignee: TOSHIBA KIKAI KABUSHIKI KAISHA
    Inventors: Hideaki Kitta, Noriyuki Sasaki, Masato Kinoshita
  • Patent number: 10363647
    Abstract: The polishing apparatus includes: a holding section that holds a material to be polished; the polishing body that polishes the material to be polished held by the holding section; the head that supports the polishing body via the elastic mechanism; a driving mechanism that causes the head to be moved in a Z coordinate direction; and a control unit that is connected to the driving mechanism and controls the driving mechanism. A load measurement device to measure a load applied to the polishing body is attached to the head, and the load measurement device is connected to the polishing body via the elastic mechanism.
    Type: Grant
    Filed: February 2, 2017
    Date of Patent: July 30, 2019
    Assignee: TOSHIBA KIKAI KABUSHIKI KAISHA
    Inventors: Yu Murofushi, Hiroaki Omagari, Masateru Tomiyasu
  • Patent number: 10350722
    Abstract: A polishing apparatus includes: a holding section that holds a material to be polished; a polishing body that polishes the material to be polished held by the holding section; a head that supports the polishing body via an elastic mechanism; a driving mechanism that causes the head to be moved in a Z coordinate direction; a control unit that controls the driving mechanism; and a position sensor that measures a position of the polishing body with respect to the head. The load control is performed based on a measurement value of the position sensor and a spring constant value of the elastic mechanism.
    Type: Grant
    Filed: February 2, 2017
    Date of Patent: July 16, 2019
    Assignee: TOSHIBA KIKAI KABUSHIKI KAISHA
    Inventors: Hiroaki Omagari, Masateru Tomiyasu, Yu Murofushi
  • Publication number: 20190202086
    Abstract: A barrel block for a twin-screw extruder constitutes a barrel including a cylinder and has joints at both ends. A first joint includes a first inner joint face on a peripheral edge of a first hole of an insertion hole for screws, and includes a first flank face and a first outer joint face on an outer periphery of the first inner joint face. The first outer joint face is located in the outer periphery of a plurality of first bolt holes. The first outer joint face is more recessed toward a second block end face than the first inner joint face.
    Type: Application
    Filed: December 21, 2018
    Publication date: July 4, 2019
    Applicant: Toshiba Kikai Kabushiki Kaisha
    Inventor: Masanobu OISHI
  • Publication number: 20190118458
    Abstract: According to one embodiment, a transfer apparatus includes a transfer roller which supports a mold and transfers a fine transfer pattern formed on the mold to a resin coated on a substrate installed in a substrate installation part with movement of the transfer roller and a transfer roller guide part for guiding the transfer roller when the mold is pressed against the resin coated on the substrate installed in the substrate installation part by the movement of the transfer roller.
    Type: Application
    Filed: October 25, 2018
    Publication date: April 25, 2019
    Applicant: TOSHIBA KIKAI KABUSHIKI KAISHA
    Inventors: Mitsunori KOKUBO, Takato BABA, Toshiaki GOTO
  • Publication number: 20190118457
    Abstract: According to one embodiment, a transfer apparatus includes a rolled web mold installation part for installing a rolled web mold around which the mold is wound, a transfer roller for winding the mold fed out from the rolled web mold, a winding roll for winding up the mold, a winding roll installation part for installing the winding roll therein, and a mold installation assisting part for guiding the mold fed out from the rolled web mold up to the winding roll while suppressing an occurrence of wrinkles in the mold fed out from the rolled web mold.
    Type: Application
    Filed: October 25, 2018
    Publication date: April 25, 2019
    Applicant: TOSHIBA KIKAI KABUSHIKI KAISHA
    Inventors: Mitsunori KOKUBO, Takato BABA, Toshiaki GOTO
  • Publication number: 20190105830
    Abstract: An apparatus for manufacturing a molded body assembly includes: a to-be-molded body holder configured to hold a to-be-molded body placed thereon; a raw material roll placement portion in which a mold raw material roll is placed; a mold holder configured to hold a leading edge portion of an uncut mold extending from the mold raw material roll, and to move relative to the to-be-molded body holder; a transfer unit configured to transfer a fine transfer pattern of the uncut mold to the to-be-molded body placed on and held by the to-be-molded body holder, a cutting unit; and a controller configured to control the to-be-molded body holder, the mold holder, the transfer unit, and the cutting unit configured to cut the uncut mold at a predetermined position in a longitudinal direction thereof, thereby manufacturing a mold body assembly.
    Type: Application
    Filed: October 1, 2018
    Publication date: April 11, 2019
    Applicant: TOSHIBA KIKAI KABUSHIKI KAISHA
    Inventors: Mitsunori Kokubo, Yuki Sugiura, Toru Suzuki, Terukatsu Kuboki
  • Patent number: 10252391
    Abstract: In a precision machine tool wherein a spindle head that is movable in the up and down direction is disposed on a column disposed on a bed and a water storage space for storing temperature-regulated cooling water is formed inside the column, the column has, in a lower part thereof, intake ports through which cooling water is led into the water storage space, the column has, in an upper part thereof, and an air vent hole through which air in the column is discharged is formed at a position higher than the drain opening.
    Type: Grant
    Filed: November 1, 2016
    Date of Patent: April 9, 2019
    Assignee: Toshiba Kikai Kabushiki Kaisha
    Inventors: Norio Yamanishi, Hiroshi Utimura
  • Patent number: 10252446
    Abstract: A shape forming system according to one embodiment includes a mold assemblies; a heating unit; a pressing unit; a cooling unit; an isolation chamber configured to accommodate therein the heating unit, the pressing unit, and the cooling unit arranged in parallel with each other; and a conveyance unit configured to move the plurality of mold assemblies each of which is arranged on a plate provided in each of the heating unit, the pressing unit, and the cooling unit to thereby convey the mold assemblies in sequence.
    Type: Grant
    Filed: March 13, 2018
    Date of Patent: April 9, 2019
    Assignee: Toshiba Kikai Kabushiki Kaisha
    Inventors: Isao Matsuzuki, Yoshihiro Yamamoto, Ryuji Tanaka, Yu Murofushi
  • Publication number: 20190099929
    Abstract: A convey device, which conveys an insert member into a die, includes a holding device configured to hold the insert member in an attitude in which a major surface of the insert member is in a substantially gravitational direction; a convey mechanism configured to convey the insert member to the die, while the insert member is being held in the attitude by the holding device; and a heating device configured to heat the insert member. The insert member can be heated by the heating device before the insert member is disposed in the die.
    Type: Application
    Filed: December 3, 2018
    Publication date: April 4, 2019
    Applicant: TOSHIBA KIKAI KABUSHIKI KAISHA
    Inventors: Jun KOIKE, Akira YOSHINAGA, Nobuyuki ASANUMA
  • Publication number: 20190091926
    Abstract: A nozzle according to one embodiment has an inner surface and an outer surface, and is provided with a first passage through which an energy ray passes, and a second passage that is provided between the inner surface and the outer surface, and through which powder and fluid pass. The second passage includes a second open end on one end thereof in a first direction. A first surface that is one of the inner surface and the outer surface includes a first edge on one end thereof in the first direction. A second surface that is the other one of those includes a second edge on one end thereof in the first direction, and is distanced from the first edge toward the first direction. The fluid ejected from the second open end flows along the second surface, and separates at the second edge.
    Type: Application
    Filed: September 14, 2018
    Publication date: March 28, 2019
    Applicants: Technology Research Association for Future Additive Manufacturing, Kabushiki Kaisha Toshiba, Toshiba Kikai Kabushiki Kaisha
    Inventors: Hiroshi Ohno, Satoshi Tsuno, Mitsuo Sasaki, Tomohiko Yamada, Yasutomo Shiomi, Shimpei Fujimaki