Patents by Inventor Yoshiteru HONDA

Yoshiteru HONDA 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).

  • Lead-free piezo-electric porcelain composition, piezo-electric element using the same, and method for producing lead-free piezo-electric porcelain composition
    Patent number: 9871187
    Abstract: A lead-free piezo-electric porcelain composition which contains a main phase having voids and which is formed of a first crystal phase composed of an alkali niobate/tantalate-based perovskite oxide having piezo-electric characteristics; and a sub-phase containing a second crystal phase composed of an A2B6O13-based compound (where the element A is a monovalent element and the element B is one or more divalent to hexavalent elements). The sub-phase fills voids present in the main phase.
    Type: Grant
    Filed: April 9, 2015
    Date of Patent: January 16, 2018
    Assignee: NGK SPARK PLUG CO., LTD.
    Inventors: Masato Yamazaki, Takayuki Matsuoka, Yoshiteru Honda, Kazuaki Kitamura, Hisashi Kozuka, Toshiaki Kurahashi, Yasuyuki Okimura, Hideto Yamada, Kazushige Ohbayashi
  • LEAD-FREE PIEZO-ELECTRIC PORCELAIN COMPOSITION, PIEZO-ELECTRIC ELEMENT USING THE SAME, AND METHOD FOR PRODUCING LEAD-FREE PIEZO-ELECTRIC PORCELAIN COMPOSITION
    Publication number: 20150295162
    Abstract: A lead-free piezo-electric porcelain composition which contains a main phase having voids and which is formed of a first crystal phase composed of an alkali niobate/tantalate-based perovskite oxide having piezo-electric characteristics; and a sub-phase containing a second crystal phase composed of an A2B6O13-based compound (where the element A is a monovalent element and the element B is one or more divalent to hexavalent elements). The sub-phase fills voids present in the main phase.
    Type: Application
    Filed: April 9, 2015
    Publication date: October 15, 2015
    Applicant: NGK SPARK PLUG CO., LTD.
    Inventors: Masato YAMAZAKI, Takayuki MATSUOKA, Yoshiteru HONDA, Kazuaki KITAMURA, Hisashi KOZUKA, Toshiaki KURAHASHI, Yasuyuki OKIMURA, Hideto YAMADA, Kazushige OHBAYASHI