Patents by Inventor Yuuji Nakahara

Yuuji Nakahara 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: 7049726
    Abstract: The invention provides a stator for a dynamo-electric machine capable of preventing deterioration of efficiency. In the stator for dynamo-electric machine of which rotor is disposed inside the stator, a stator core 11 comprises: an inside ring core 9 formed annularly by laminating plate-type magnetic members in which a plurality of teeth are provided on one side of a yoke portion, disposing coils 8 in slots each formed between the teeth, bending the plate-type magnetic members so that the coils 8 are located inside, and bringing two end faces into contact with each other; and an outside ring core 10, being made of magnetic members and formed cylindrical in shape, which is fitted on outside of the inside ring 9 and holds the inside ring core 9.
    Type: Grant
    Filed: March 4, 2003
    Date of Patent: May 23, 2006
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Yuuji Nakahara, Naohiro Oketani, Katsumi Adachi, Akira Morishita, Hiroshi Matsui, Tsuyoshi Takahashi, Takushi Takizawa, Yoshihito Asao
  • Publication number: 20040244184
    Abstract: The invention provides a stator for a dynamo-electric machine capable of preventing deterioration of efficiency. In the stator for dynamo-electric machine of which rotor is disposed inside the stator, a stator core 11 comprises: an inside ring core 9 formed annularly by laminating plate-type magnetic members in which a plurality of teeth are provided on one side of a yoke portion, disposing coils 8 in slots each formed between the teeth, bending the plate-type magnetic members so that the coils 8 are located inside, and bringing two end faces into contact with each other; and an outside ring core 10, being made of magnetic members and formed cylindrical in shape, which is fitted on outside of the inside ring 9 and holds the inside ring core 9.
    Type: Application
    Filed: June 7, 2004
    Publication date: December 9, 2004
    Applicant: MITSUBISHI DENKI KABUSHIKI KAISHA
    Inventors: Yuuji Nakahara, Naohiro Oketani, Katsumi Adachi, Akira Morishita, Hiroshi Matsui, Tsuyoshi Takahashi, Takushi Takizawa, Yoshihito Asao
  • Publication number: 20030189387
    Abstract: The invention provides a stator for a dynamo-electric machine capable of preventing deterioration of efficiency. In the stator for dynamo-electric machine of which rotor is disposed inside the stator, a stator core 11 comprises: an inside ring core 9 formed annularly by laminating plate-type magnetic members in which a plurality of teeth are provided on one side of a yoke portion, disposing coils 8 in slots each formed between the teeth, bending the plate-type magnetic members so that the coils 8 are located inside, and bringing two end faces into contact with each other; and an outside ring core 10, being made of magnetic members and formed cylindrical in shape, which is fitted on outside of the inside ring 9 and holds the inside ring core 9.
    Type: Application
    Filed: March 4, 2003
    Publication date: October 9, 2003
    Applicant: MITSUBISHI DENKI KABUSHIKI KAISHA
    Inventors: Yuuji Nakahara, Naohiro Oketani, Katsumi Adachi, Akira Morishita, Hiroshi Matsui, Tsuyoshi Takahashi, Takushi Takizawa, Yoshihito Asao
  • Publication number: 20010005104
    Abstract: The invention provides a stator for a dynamo-electric machine capable of preventing deterioration of efficiency. In the stator for dynamo-electric machine of which rotor is disposed inside the stator, a stator core 11 comprises: an inside ring core 9 formed annularly by laminating plate-type magnetic members in which a plurality of teeth are provided on one side of a yoke portion, disposing coils 8 in slots each formed between the teeth, bending the plate-type magnetic members so that the coils 8 are located inside, and bringing two end faces into contact with each other; and an outside ring core 10, being made of magnetic members and formed cylindrical in shape, which is fitted on outside of the inside ring 9 and holds the inside ring core 9.
    Type: Application
    Filed: December 13, 2000
    Publication date: June 28, 2001
    Inventors: Yuuji Nakahara, Naohiro Oketani, Katsumi Adachi, Akira Morishita, Hiroshi Matsui, Tsuyoshi Takahashi, Takushi Takizawa, Yoshihito Asao
  • Patent number: 5097168
    Abstract: A motor having a stator which comprises a stator iron core 6 formed by fitting an inner ring magnetic pole portion 10 into an outer ring yoke portion 5, the inner ring magnetic pole portion 10 having slots 8 and magnetic poles 7; an insulating member 11 covering the inner ring magnetic pole portion of the stator iron core; a funnel-like insulating 13 which is formed integrally with the insulating member 11 to cover an end surface 14 of the inner ring magnetic pole portion 10 and which has a first through hole 15 for rotary shaft to communicate with the central portion of the inner ring magnetic pole portion 10 spool frames 23, 24 with pins 28 formed on the magnetic poles 7 so as to be integral with the insulating member 13; a rotor 16 inserted in the inner ring magnetic pole portion; 10; a funnel-like insulating cover 18 having a second through hole 20 for rotary shaft which is in alignment with the first through hole 15, the insulating cover 18 being mounted on the other end surface 12 of the inner ring magn
    Type: Grant
    Filed: October 31, 1990
    Date of Patent: March 17, 1992
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Yukinori Takekoshi, Makoto Ukai, Shuuichi Kiri, Yukihisa Suzumura, Satoshi Takefushi, Naotoshi Kaito, Yoshio Kasuga, Yuuji Nakahara, Masahiro Taguchi, Kenichi Azuma, Shigekazu Sakabe