Patents by Inventor Dain-Yu Ji

Dain-Yu Ji 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).

  • Novel amorphous metal salt for facilitating the handling property of portland cements and dental applications thereof
    Publication number: 20100139524
    Abstract: A novel amorphous divalent metal ion salt for enhancing the manageability of a Portland cement and its application in dental field are disclosed. Typical formula (I), (II), or (III) of this amorphous metal ion salt are shown as following: M 2 + ? A x - ? B 2 - x - ( I ) M 2 + ? A y 2 - ? C ( 4 - y ) 4 2 - ( II ) M 2 + ? A z 3 - ? D ( 6 - z ) 9 3 - ( III ) wherein, M2+, A?, B?, C?2, D?3, x, y, and z are defined the same as the specification. A novel tooth filling material comprises: a Portland cement, a bone substitute substance, and an amorphous divalent metal ion salt with formula of (I), (II), or (III). In addition, a novel root canal filling material comprises: a Portland cement, a radiopaque substance, and an amorphous divalent metal ion salt with formula of (I), (II), or (III).
    Type: Application
    Filed: December 1, 2009
    Publication date: June 10, 2010
    Applicant: Taipei Medical University
    Inventors: Jeng-Chang Yang, Pei-Ying Lee, Dain-Yu Ji, Nain-Chia Teng, Sung-Chih Hsieh, Sheng-Yang Lee