Patents by Inventor Masataka Takenami

Masataka Takenami 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).

  • Patent number: 10632677
    Abstract: Apparatus for manufacturing a three-dimensional shaped object comprises a chamber, a transmission window, a blow-out port and a cover member, wherein a solidified layer is formed by irradiation of a predetermined portion of a material layer with a light beam, thereby allowing a sintering of the material in the predetermined portion or a melting and subsequent solidification of the material, the material layer being provided within the chamber. The transmission window is provided in the chamber, allowing the light beam to be transmitted there through. The blow-out port is located around the transmission window, and serves for blowing out an inert gas toward an interior of the chamber. The cover member, which is positioned below the blow-out port and also serves for surrounding the blow-out port, has an annular form. A gap through which the inert gas-passes is provided between the cover member and the transmission window.
    Type: Grant
    Filed: February 15, 2017
    Date of Patent: April 28, 2020
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANGAGEMENT CO., LTD.
    Inventors: Kousuke Yamauchi, Masataka Takenami, Syuu Ukegawa
  • Patent number: 10538021
    Abstract: To provide an injection mold capable of filling a necessary resin material for obtaining a desired molded article in a cavity space of a fine mesh structure, there is provided an injection mold according to an embodiment of the present invention composed of a core mold and a cavity mold, in which a cavity space is formed when the core and cavity molds are in a contact with each other, the cavity space surrounding a plurality of contact areas between the core and cavity molds. In the injection mold according to an embodiment of the present invention, at least one of the core and cavity molds has a through-hole which has an opening in a parting plane of the core and cavity molds and extends from the opening to an outside of the injection mold, the parting plane corresponding to the contact areas between the core and cavity molds.
    Type: Grant
    Filed: September 29, 2015
    Date of Patent: January 21, 2020
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Masanori Morimoto, Satoshi Abe, Masataka Takenami
  • Patent number: 10413970
    Abstract: There is provided a method for manufacturing a three-dimensional shaped object by alternate repetition of a powder-layer forming and a solidified-layer forming by an irradiation with a light beam in order to provide a selective laser sintering method capable of reducing a warp of the three-dimensional shaped object, the warp being due to a stress around an upper surface of the three-dimensional shaped object. Especially, in the present invention, a part of a region for the formation of the solidified layer is not irradiated with the light beam to form a non-irradiated portion, thereby providing at least one slit-groove at an upper surface of the three-dimensional shaped object, the slit-groove being for reducing a stress of the three-dimensional shaped object.
    Type: Grant
    Filed: July 28, 2015
    Date of Patent: September 17, 2019
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Masataka Takenami, Satoshi Abe, Mikio Mori
  • Publication number: 20190070781
    Abstract: Apparatus for manufacturing a three-dimensional shaped object comprises a chamber, a transmission window, a blow-out port and a cover member, wherein a solidified layer is formed by irradiation of a predetermined portion of a material layer with a light beam, thereby allowing a sintering of the material in the predetermined portion or a melting and subsequent solidification of the material, the material layer being provided within the chamber. The transmission window is provided in the chamber, allowing the light beam to be transmitted therethrough. The blow-out port is located around the transmission window, and serves for blowing out an inert gas toward an interior of the chamber. The cover member, which is positioned below the blow-out port and also serves for surrounding the blow-out port, has an annular form. A gap through which the inert gas passes is provided between the cover member and the transmission window.
    Type: Application
    Filed: February 15, 2017
    Publication date: March 7, 2019
    Applicant: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Kousuke YAMAUCHI, Masataka TAKENAMI, Syuu UKEGAWA
  • Patent number: 10022797
    Abstract: A method for manufacturing a three-dimensional shaped object wherein the warping of the base plate is suitably addressed. The method of the present invention comprises: (i) forming a solidified layer by irradiating a predetermined portion of a powder layer on a base plate with a light beam, thereby allowing sintering of the powder of the predetermined portion or melting and subsequent solidification thereof; and (ii) forming another solidified layer by newly forming a powder layer on the resulting solidified layer, and then irradiating another predetermined portion of the new powder layer with the light beam, the steps (i) and (ii) being repeatedly performed; wherein, prior to or upon the manufacturing of the three-dimensional shaped object, the base plate is subjected to a heat treatment, thereby causing the base plate to be warped, and at least a lower surface of the warped base plate is subjected to a flattening process.
    Type: Grant
    Filed: February 16, 2011
    Date of Patent: July 17, 2018
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Satoshi Abe, Norio Yoshida, Isao Fuwa, Yoshikazu Higashi, Masataka Takenami, Isamu Matumoto
  • Patent number: 10000021
    Abstract: There is provided a method for manufacturing a three-dimensional shaped object. The method of the present invention comprises the repeated steps of: (i) forming a solidified layer by irradiating a predetermined portion of a powder layer with a light beam, thereby allowing a sintering of the powder in the predetermined portion or a melting and subsequent solidification thereof; and (ii) forming another solidified layer by newly forming a powder layer on the resulting solidified layer, followed by the irradiation of a predetermined portion of the powder layer with the light beam; wherein only the surface portion of the solidified layer, to which a force is applied when the three-dimensional shaped object is used, is subjected to a machining process.
    Type: Grant
    Filed: June 23, 2010
    Date of Patent: June 19, 2018
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Satoshi Abe, Yoshikazu Higashi, Isao Fuwa, Masataka Takenami
  • Patent number: 9902113
    Abstract: There is provided a method for manufacturing a three-dimensional shaped object, comprising the steps of: (i) forming a solidified layer by irradiating a predetermined portion of a powder layer with a light beam, thereby allowing sintering of the powder of the predetermined portion or melting and subsequent solidification thereof; and (ii) forming another solidified layer by newly forming a powder layer on the resulting solidified layer, and then irradiating another predetermined portion of the new powder layer with the light beam, the steps (i) and (ii) being repeatedly performed, wherein the three-dimensional shaped object is manufactured such that it has three different solidified portions of high-density, intermediate-density and low-density solidified portions in at least a part of the object, and wherein the intermediate-density solidified portion is formed to be located in a part of a surface of the three-dimensional shaped object.
    Type: Grant
    Filed: March 15, 2012
    Date of Patent: February 27, 2018
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Isamu Matsumoto, Satoshi Abe, Masataka Takenami, Yoshiyuki Uchinono
  • Publication number: 20170341143
    Abstract: There is provided a manufacturing method of the three-dimensional shaped object, the method being capable of reducing an undesirable phenomenon associated with the contamination of the light transmission window with the fume substance. The manufacturing method according to an embodiment of the present invention is a method for manufacturing a three-dimensional shaped object by alternate repetition of a powder-layer forming and a solidified-layer forming, wherein the irradiation with light beam for the solidified-layer forming is performed by directing the light beam into the chamber through a light transmission window of the chamber, and wherein a gas blow is supplied to the light transmission window by use of a movable gas supply device, the light transmission window having been contaminated with a fume generated upon the formation of the solidified layer.
    Type: Application
    Filed: December 22, 2015
    Publication date: November 30, 2017
    Applicant: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Satoshi ABE, Isao FUWA, Masataka TAKENAMI, Mikio MORI
  • Publication number: 20170282462
    Abstract: In order to provide the method for manufacturing the three-dimensional shaped object which is capable of preventing the occurrence of the raised portion at the sintered portion or the melted and subsequently solidified portion by the irradiation of the light beam, there is provided a method for manufacturing a three-dimensional shaped object by alternate repetition of a step (i) forming a powder-layer and a step (ii) forming a solidified layer by irradiating a predetermined portion of the powder layer with a light beam, wherein the light beam-irradiated portion is vibrated in the step (ii).
    Type: Application
    Filed: September 30, 2015
    Publication date: October 5, 2017
    Applicant: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LT D.
    Inventors: Satoshi ABE, Isao FUWA, Masataka TAKENAMI
  • Patent number: 9776243
    Abstract: A selective laser sintering method reduces a warping deformation of a three-dimensional shaped object, the warping deformation being due to the scanning of a light beam. The manufacturing method is a method for manufacturing a three-dimensional shaped object by alternate repetition of a powder-layer forming and a solidified-layer forming, wherein a scanning of the light irradiation is divided into light beam-scannings “A” and “B”, the light beam-scanning “A” being for the light irradiation of a peripheral portion corresponding to a periphery of the three-dimensional shaped object, and the light beam-scanning “B” being for the light irradiation of an internal portion corresponding to a region of the three-dimensional shaped object, the region being located inside the periphery. In particular, the peripheral portion is subjected to a discontinuous light beam-irradiation in the light beam-scanning “A” such that an irradiation path of the light beam is divided into a plurality of sub-irradiation paths.
    Type: Grant
    Filed: March 4, 2015
    Date of Patent: October 3, 2017
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Satoshi Abe, Masataka Takenami, Isamu Matsumoto
  • Patent number: 9724758
    Abstract: An apparatus for producing a laminated object, includes a powder layer forming unit for forming a powder layer of a powdery material, a material supply unit for feeding the powdery material to the powder layer forming unit; and a solidified layer forming unit for forming a solidified layer by irradiating a light beam on a specified portion of the powder layer and sintering or melting the specified portion of the powder layer. The apparatus is configured to produce an integrally laminated three-dimensional object by repeating formation of the powder layer and formation of the solidified layer. The material supply unit includes a cartridge unit charged with the powdery material, the cartridge unit being configured to allow the powdery material to drop downwards.
    Type: Grant
    Filed: July 23, 2015
    Date of Patent: August 8, 2017
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Satoshi Abe, Yoshikazu Higashi, Isao Fuwa, Masataka Takenami, Norio Yoshida
  • Publication number: 20170217068
    Abstract: To provide an injection mold capable of filling a necessary resin material for obtaining a desired molded article in a cavity space of a fine mesh structure, there is provided an injection mold according to an embodiment of the present invention composed of a core mold and a cavity mold, in which a cavity space is formed when the core and cavity molds are in a contact with each other, the cavity space surrounding a plurality of contact areas between the core and cavity molds. In the injection mold according to an embodiment of the present invention, at least one of the core and cavity molds has a through-hole which has an opening in a parting plane of the core and cavity molds and extends from the opening to an outside of the injection mold, the parting plane corresponding to the contact areas between the core and cavity molds.
    Type: Application
    Filed: September 29, 2015
    Publication date: August 3, 2017
    Applicant: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO. LTD.
    Inventors: Masanori MORIMOTO, Satoshi ABE, Masataka TAKENAMI
  • Publication number: 20170203366
    Abstract: There is provided a method for manufacturing a three-dimensional shaped object by alternate repetition of a powder-layer forming and a solidified-layer forming by an irradiation with a light beam in order to provide a selective laser sintering method capable of reducing a warp of the three-dimensional shaped object, the warp being due to a stress around an upper surface of the three-dimensional shaped object. Especially, in the present invention, a part of a region for the formation of the solidified layer is not irradiated with the light beam to form a non-irradiated portion, thereby providing at least one slit-groove at an upper surface of the three-dimensional shaped object, the slit-groove being for reducing a stress of the three-dimensional shaped object.
    Type: Application
    Filed: July 28, 2015
    Publication date: July 20, 2017
    Applicant: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Masataka TAKENAMI, Satoshi ABE, Mikio MORI
  • Patent number: 9707622
    Abstract: There is provided a selective laser sintering method capable of reducing the bulge of the peripheral portion corresponding to the periphery of the three-dimensional shaped object. The manufacturing method according to an embodiment of the present invention includes alternate repetition of a powder-layer forming and a solidified-layer forming, the repetition comprising: (i) forming a solidified layer by irradiating a predetermined portion of a powder layer with a light beam, thereby sintering the powder in the predetermined portion or a melting and subsequently solidifying the powder; and (ii) forming another solidified layer by newly forming a powder layer on the formed solidified layer, followed by irradiation of a predetermined portion of the newly formed powder layer with the light beam, wherein a scanning of the light irradiation is divided into light beam-scannings “A” and “B”.
    Type: Grant
    Filed: March 4, 2015
    Date of Patent: July 18, 2017
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Masataka Takenami, Satoshi Abe, Isamu Matsumoto
  • Patent number: 9604282
    Abstract: There is provided a selective laser sintering method capable of reducing the trouble in chipping or breakage of the machining tool and the like. The manufacturing method according to an embodiment of the present invention is a method for manufacturing a three-dimensional shaped object by repetition of a powder-layer forming and a solidified-layer forming, the repetition including the steps of (i) forming a solidified layer by irradiating a predetermined portion of a powder layer with a light beam, thereby allowing a sintering of the powder in the predetermined portion or a melting and subsequent solidification thereof, and (ii) forming another solidified layer by newly forming a powder layer on the resulting solidified layer, followed by the irradiation of a predetermined portion of the powder layer with the light beam.
    Type: Grant
    Filed: July 9, 2014
    Date of Patent: March 28, 2017
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Satoshi Abe, Masataka Takenami, Isamu Matsumoto
  • Patent number: 9597836
    Abstract: There is provided a manufacturing method of the three-dimensional shaped object, the method being capable of suitably reducing the local raised portion which can occur during the light beam irradiation under the condition of the divided sub-irradiation paths. The manufacturing method of the present invention is performed by repetition of a powder-layer forming and a solidified-layer forming, wherein an irradiation path of the light beam is divided into a plurality of sub-irradiation paths including a short sub-irradiation path with its length being shorter than a predetermined length and a long sub-irradiation path with its length being the predetermined length or longer, and wherein an irradiation mode of the light beam is changed depending on the lengths of the sub-irradiation paths.
    Type: Grant
    Filed: March 6, 2013
    Date of Patent: March 21, 2017
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Satoshi Abe, Isamu Matsumoto, Masataka Takenami, Masaki Kondo, Isao Fuwa, Yoshiyuki Uchinono
  • Publication number: 20170072464
    Abstract: There is provided a selective laser sintering method capable of reducing the bulge of the peripheral portion corresponding to the periphery of the three-dimensional shaped object. The manufacturing method according to an embodiment of the present invention includes alternate repetition of a powder-layer forming and a solidified-layer forming, the repetition comprising: (i) forming a solidified layer by irradiating a predetermined portion of a powder layer with a light beam, thereby sintering the powder in the predetermined portion or a melting and subsequently solidifying the powder; and (ii) forming another solidified layer by newly forming a powder layer on the formed solidified layer, followed by irradiation of a predetermined portion of the newly formed powder layer with the light beam, wherein a scanning of the light irradiation is divided into light beam-scannings “A” and “B”.
    Type: Application
    Filed: March 4, 2015
    Publication date: March 16, 2017
    Applicant: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Masataka TAKENAMI, Satoshi ABE, Isamu MATSUMOTO
  • Patent number: 9592554
    Abstract: A method for manufacturing a three-dimensional shaped object, comprising: (i) forming a powder layer on a base plate by a sliding movement of a squeegee blade, followed by forming a solidified layer by irradiating a predetermined portion of the powder layer with a light beam, thereby allowing sintering of the powder of the predetermined portion or melting and subsequent solidification thereof; and (ii) forming another solidified layer by newly forming a powder layer on the resulting solidified layer, and then irradiating another predetermined portion of the new powder layer with the light beam, steps (i) and (ii) being repeatedly performed, wherein machining is performed at least once on an outer surface of a shaped object precursor obtained during manufacturing, and after machining, at least one solidified layer is formed, and followed by upper face machining to remove a raised solidified portion generated at a peripheral edge of the solidified layer.
    Type: Grant
    Filed: May 22, 2012
    Date of Patent: March 14, 2017
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Satoshi Abe, Isamu Matsumoto, Masataka Takenami, Isao Fuwa, Yoshikazu Higashi, Yoshiyuki Uchinono, Norio Yoshida
  • Publication number: 20170066052
    Abstract: A selective laser sintering method reduces a warping deformation of a three-dimensional shaped object, the warping deformation being due to the scanning of a light beam. The manufacturing method is a method for manufacturing a three-dimensional shaped object by alternate repetition of a powder-layer forming and a solidified-layer forming, wherein a scanning of the light irradiation is divided into light beam-scannings “A” and “B”, the light beam-scanning “A” being for the light irradiation of a peripheral portion corresponding to a periphery of the three-dimensional shaped object, and the light beam-scanning “B” being for the light irradiation of an internal portion corresponding to a region of the three-dimensional shaped object, the region being located inside the periphery. In particular, the peripheral portion is subjected to a discontinuous light beam-irradiation in the light beam-scanning “A” such that an irradiation path of the light beam is divided into a plurality of sub-irradiation paths.
    Type: Application
    Filed: March 4, 2015
    Publication date: March 9, 2017
    Applicant: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Satoshi ABE, Masataka TAKENAMI, Isamu MATSUMOTO
  • Patent number: 9586285
    Abstract: There is provided a selective laser sintering method capable of reducing the trouble in chipping or breakage of the machining tool and the like. The manufacturing method according to an embodiment of the present invention is a method for manufacturing a three-dimensional shaped object by repetition of a powder-layer forming and a solidified-layer forming, the repetition including the steps of (i) forming a solidified layer by irradiating a predetermined portion of a powder layer with a light beam, thereby allowing a sintering of the powder in the predetermined portion or a melting and subsequent solidification thereof, and (ii) forming another solidified layer by newly forming a powder layer on the resulting solidified layer, followed by the irradiation of a predetermined portion of the powder layer with the light beam.
    Type: Grant
    Filed: July 9, 2014
    Date of Patent: March 7, 2017
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Satoshi Abe, Masataka Takenami, Isamu Matsumoto