Patents by Inventor Seizo Machida

Seizo Machida 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).

  • Method of making sintered object
    Patent number: 7172724
    Abstract: In order for a surface of a three-dimensional sintered object to be smoothly finished by removing unwanted portions and an excessively sintered growth formed during sintering to form sintered layers, the three-dimensional sintered object is formed by repeating successive processes of dispensing a powdery material and directing an optical sintering beam to the powdery material to form the sintered layer, until a required number of integral laminated bodies are formed. During the formation of the integral laminated bodies, trimming is applied to a first zone different from a second zone in which each laminated body is formed, to remove unwanted portions of the respective laminated body.
    Type: Grant
    Filed: November 27, 2002
    Date of Patent: February 6, 2007
    Assignee: Matsushita Electric Works, Ltd.
    Inventors: Satoshi Abe, Yoshikazu Higashi, Hirohiko Togeyama, Norio Yoshida, Isao Fuwa, Shushi Uenaga, Seizo Machida, Masataka Takenami
  • Method of and apparatus for making a three-dimensional object
    Patent number: 6657155
    Abstract: To make a three-dimensional object, an optical beam is first irradiated on a predetermined portion of a powder layer to form a sintered layer, which is then covered with a new powder layer. The optical beam is again irradiated on a predetermined portion of the new powder layer to form another sintered layer that has been united with the underlying sintered layer. These processes are repeatedly carried out to form a plurality of sintered layers united together, which have a size greater than that of a target shape of the three-dimensional object. A surface region of a shaped object formed by then is removed during the formation of the plurality of sintered layers.
    Type: Grant
    Filed: September 28, 2001
    Date of Patent: December 2, 2003
    Assignee: Matsushita Electric Works, Ltd.
    Inventors: Satoshi Abe, Norio Yoshida, Yoshikazu Higashi, Hirohiko Togeyama, Isao Fuwa, Shushi Uenaga, Seizo Machida
  • Method of making sintered object
    Publication number: 20030185697
    Abstract: In order for a surface of a three-dimensional sintered object to be smoothly finished by removing unwanted portions and an excessively sintered growth formed during sintering to form sintered layers, the three-dimensional sintered object is formed by repeating successive processes of dispensing a powdery material and directing an optical sintering beam to the powdery material to form the sintered layer, until a required number of integral laminated bodies are formed. During the formation of the integral laminated bodies, trimming is applied to a first zone different from a second zone in which each laminated body is formed, to remove unwanted portions of the respective laminated body.
    Type: Application
    Filed: November 27, 2002
    Publication date: October 2, 2003
    Applicant: Matsushita Electric Works, Ltd.
    Inventors: Satoshi Abe, Yoshikazu Higashi, Hirohiko Togeyama, Norio Yoshida, Isao Fuwa, Shushi Uenaga, Seizo Machida, Masataka Takenami
  • Method of and apparatus for making a three-dimensional object
    Publication number: 20020041818
    Abstract: To make a three-dimensional object, an optical beam is first irradiated on a predetermined portion of a powder layer to form a sintered layer, which is then covered with a new powder layer. The optical beam is again irradiated on a predetermined portion of the new powder layer to form another sintered layer that has been united with the underlying sintered layer. These processes are repeatedly carried out to form a plurality of sintered layers united together, which have a size greater than that of a target shape of the three-dimensional object. A surface region of a shaped object formed by then is removed during the formation of the plurality of sintered layers.
    Type: Application
    Filed: September 28, 2001
    Publication date: April 11, 2002
    Applicant: MATSUSHITA ELECTRIC WORKS, LTD.
    Inventors: Satoshi Abe, Norio Yoshida, Yoshikazu Higashi, Hirohiko Togeyama, Isao Fuwa, Shushi Uenaga, Seizo Machida