Patents by Inventor Hideaki Hiramitsu

Hideaki Hiramitsu 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).

  • Rotation angle positioning device
    Patent number: 8560260
    Abstract: In a rotation angle positioning device 6 including: a rotation angle detection device 7 which has a detection target ring 8 and an angle detection sensor 9; and a rotating-shaft driving device 10 rotating a rotating shaft so as to cause a rotation angle to become a given command value ? for rotation angle, there are provided: an error pattern storage unit 11a storing a tooth-to-tooth period error pattern F made up of errors between detected rotation angles by the angle detection sensor 9 and actual rotation angles, corresponding to respective correction dividing points of an arbitrary tooth-to-tooth period in the detection target ring 8; and a command value correction unit 11b correcting the command value ? for rotation angle based on the tooth-to-tooth period error pattern F to find a corrected command value ?2 for rotation angle.
    Type: Grant
    Filed: May 25, 2011
    Date of Patent: October 15, 2013
    Assignees: Mori Seiki Co., Ltd., Mitsubushi Electric Corporation
    Inventors: Munetaka Wakizaka, Hideaki Hiramitsu
  • ROTATION ANGLE POSITIONING DEVICE
    Publication number: 20110320154
    Abstract: In a rotation angle positioning device 6 including: a rotation angle detection device 7 which has a detection target ring 8 and an angle detection sensor 9; and a rotating-shaft driving device 10 rotating a rotating shaft so as to cause a rotation angle to become a given command value ? for rotation angle, there are provided: an error pattern storage unit 11a storing a tooth-to-tooth period error pattern F made up of errors between detected rotation angles by the angle detection sensor 9 and actual rotation angles, corresponding to respective correction dividing points of an arbitrary tooth-to-tooth period in the detection target ring 8; and a command value correction unit 11b correcting the command value ? for rotation angle based on the tooth-to-tooth period error pattern F to find a corrected command value ?2 for rotation angle.
    Type: Application
    Filed: May 25, 2011
    Publication date: December 29, 2011
    Inventors: Munetaka Wakizaka, Hideaki Hiramitsu
  • Piezoceramic material, piezoelectric element and non-resonance knock sensor
    Patent number: 8040024
    Abstract: A piezoceramic material according to an embodiment of the present invention has a composition represented by Pbm{Zr1-x-y-zTixSny(Sb1-nNbn)z}O3 where 1.000?m?1.075, 0.470?x<0.490, 0.020?y?0.040, 0<n<1.000 and 0<z?0.025 and a crystallite size of 30 to 39 nm.
    Type: Grant
    Filed: March 4, 2009
    Date of Patent: October 18, 2011
    Assignee: NGK Spark Plug Co., Ltd.
    Inventors: Masato Yamazaki, Hideaki Hiramitsu, Manabu Horiguchi, Yukihiro Hamaguchi, Katsuya Yamagiwa, Takeshi Mitsuoka, Kazushige Ohbayashi, Ryotaro Tawara, Tomohiro Hirata
  • PIEZOCERAMIC MATERIAL, PIEZOELECTRIC ELEMENT AND NON-RESONANCE KNOCK SENSOR
    Publication number: 20090223282
    Abstract: A piezoceramic material according to an embodiment of the present invention has a composition represented by Pbm{Zr1-x-y-zTixSny(Sb1-nNbn)z}O3 where 1.000?m?1.075, 0.470?x<0.490, 0.020?y?0.040, 0<n<1.000 and 0<z?0.025 and a crystallite size of 30 to 39 nm.
    Type: Application
    Filed: March 4, 2009
    Publication date: September 10, 2009
    Applicant: NGK SPARK PLUG CO., LTD.
    Inventors: Masato YAMAZAKI, Hideaki HIRAMITSU, Manabu HORIGUCHI, Yukihiro HAMAGUCHI, Katsuya YAMAGIWA, Takeshi MITSUOKA, Kazushige OHBAYASHI, Ryotaro TAWARA, Tomohiro HIRATA