Patents by Inventor Syuuichi Tamura

Syuuichi Tamura 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: 7384483
    Abstract: In a stator core having a plurality of teeth, which elongate in an inner radial direction and slots, which are configured among the teeth, powder is caused to adhere to the stator core, the powder adhering to an inner peripheral face of the stator core is removed, and the stator core is heated to melt and harden the powder.
    Type: Grant
    Filed: October 21, 2004
    Date of Patent: June 10, 2008
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Syuuichi Tamura, Tsuyoshi Takahashi, Shuji Tohyama, Yoshihiro Kazuha, Atsushi Oohashi, Katsuya Kinoshita
  • Patent number: 6990724
    Abstract: An intermediate holding member is inserted between a second free end and a third free end from an inner circumferential side in a radial direction, a first radial restraining member presses against a free end at an innermost circumference from radially inside, and a second radial restraining member presses against a free end at an outermost circumference from radially outside. Next, a voltage is supplied between a torch and the members, an inert gas is supplied to the torch, and an arc discharge is generated between the torch and the free ends, welding the radially-adjacent free ends.
    Type: Grant
    Filed: October 10, 2002
    Date of Patent: January 31, 2006
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Syuuichi Tamura, Hiroyuki Akita, Takushi Takizawa, Atsushi Oohashi
  • Patent number: 6896562
    Abstract: Joint terminal 21 has segue tubular hole 22, the entire surface of joint terminal 20 is provided with tinning, of which melting temperature is the carbonization temperature of an insulating coating of lead conductors 19d or less, lead conductors 19d are inserted in hole 22, and lead conductors 19d are welded to joint terminal 21 via tin 28 as an jointing ancillary agent, whereby a rotary electric machine and a method for producing the rotary electric machine, in which the jointed portion between the lead conductors and the joint terminal is not deteriorated by temperature, vibration and rust, the insulation is good, reliability of the jointed portion is excellent, are obtainable.
    Type: Grant
    Filed: July 1, 2002
    Date of Patent: May 24, 2005
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Takushi Takizawa, Tomohiko Kuroda, Syuuichi Tamura, Hiroyuki Akita, Atsushi Oohashi
  • Publication number: 20050057104
    Abstract: In a stator core having a plurality of teeth, which elongate in an inner radial direction and slots, which are configured among the teeth, powder is caused to adhere to the stator core, the powder adhering to an inner peripheral face of the stator core is removed, and the stator core is heated to melt and harden the powder.
    Type: Application
    Filed: October 21, 2004
    Publication date: March 17, 2005
    Inventors: Syuuichi Tamura, Tsuyoshi Takahashi, Shuji Tohyama, Yoshihiro Kazuha, Atsushi Oohashi, Katsuya Kinoshita
  • Patent number: 6856052
    Abstract: In a stator core having a plurality of teeth, which elongate in an inner radial direction and slots, which are configured among the teeth, powder is caused to adhere to the stator core, the powder adhering to an inner peripheral face of the stator core is removed, and the stator core is heated to melt and harden the powder.
    Type: Grant
    Filed: July 31, 2002
    Date of Patent: February 15, 2005
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Syuuichi Tamura, Tsuyoshi Takahashi, Shuji Tohyama, Yoshihiro Kazuha, Atsushi Oohashi, Katsuya Kinoshita
  • Patent number: 6717317
    Abstract: In a connection portion of a stator winding, conductor wires extending outward from a slot pair separated by a predetermined number of slots are joined such that end portions of conductor wires extending outward from addresses of the slot pair separated by three or more addresses are joined together (a distant-address joint portion), and end portions of conductor wires in the slot pair separated by two or less addresses are joined together (a near-address joint portion). The distant-address joint portion is offset in a circumferential direction relative to the near-address joint portion.
    Type: Grant
    Filed: December 6, 2001
    Date of Patent: April 6, 2004
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Hiroyuki Akita, Syuuichi Tamura, Takushi Takizawa, Mitsuharu Hashiba, Naohiro Oketani, Atsushi Oohashi, Yoshihito Asao, Katsumi Adachi
  • Publication number: 20030141770
    Abstract: In a stator core having a plurality of teeth, which elongate in an inner radial direction and slots, which are configured among the teeth, powder is caused to adhere to the stator core, the powder adhering to an inner peripheral face of the stator core is removed, and the stator core is heated to melt and harden the powder.
    Type: Application
    Filed: July 31, 2002
    Publication date: July 31, 2003
    Applicant: MITSUBISHI DENKI KABUSHIKI KAISHA
    Inventors: Syuuichi Tamura, Tsuyoshi Takahashi, Shuji Tohyama, Yoshihiro Kazuha, Atsushi Oohashi, Katsuya Kinoshita
  • Publication number: 20030137207
    Abstract: An intermediate holding member is inserted between a second free end and a third free end from an inner circumferential side in a radial direction, a first radial restraining member presses against a free end at an innermost circumference from radially inside, and a second radial restraining member presses against a free end at an outermost circumference from radially outside. Next, a voltage is supplied between a torch and the members, an inert gas is supplied to the torch, and an arc discharge is generated between the torch and the free ends, welding the radially-adjacent free ends.
    Type: Application
    Filed: October 10, 2002
    Publication date: July 24, 2003
    Applicant: MITSUBISHI DENKI KABUSHIKI KAISHA
    Inventors: Syuuichi Tamura, Hiroyuki Akita, Takushi Takizawa, Atsushi Oohashi
  • Publication number: 20030129856
    Abstract: Joint terminal 21 has segue tubular hole 22, the entire surface of joint terminal 20 is provided with tinning, of which melting temperature is the carbonization temperature of an insulating coating of lead conductors 19d or less, lead conductors 19d are inserted in hole 22, and lead conductors 19d are welded to joint terminal 21 via tin 28 as an jointing ancillary agent, whereby a rotary electric machine and a method for producing the rotary electric machine, in which the jointed portion between the lead conductors and the joint terminal is not deteriorated by temperature, vibration and rust, the insulation is good, reliability of the jointed portion is excellent, are obtainable.
    Type: Application
    Filed: July 1, 2002
    Publication date: July 10, 2003
    Applicant: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Takushi Takizawa, Tomohiko Kuroda, Syuuichi Tamura, Hiroyuki Akita, Atsushi Oohashi
  • Publication number: 20020145356
    Abstract: In a connection portion of a stator winding, conductor wires extending outward from a slot pair separated by a predetermined number of slots are joined such that end portions of conductor wires extending outward from addresses of the slot pair separated by three or more addresses are joined together (a distant-address joint portion), and end portions of conductor wires in the slot pair separated by two or less addresses are joined together (a near-address joint portion). The distant-address joint portion is offset in a circumferential direction relative to the near-address joint portion.
    Type: Application
    Filed: December 6, 2001
    Publication date: October 10, 2002
    Applicant: MITSUBISHI DENKI KABUSHIKI KAISHA
    Inventors: Hiroyuki Akita, Syuuichi Tamura, Takushi Takizawa, Mitsuharu Hashiba, Naohiro Oketani, Atsushi Oohashi, Yoshihito Asao, Katsumi Adachi