Patents by Inventor Kaoru Ohgane

Kaoru Ohgane 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).

  • Root canal treatment tool and method for manufacturing the same
    Publication number: 20070037118
    Abstract: The present invention relates to a root canal treatment tool that is formed in a shape of a rod and has a work portion formed in a predetermined length from a tip and a shank formed in a manner continuous with the work portion. The work portion has a shape memory characteristic in a range of a predetermined length from the tip and a superelastic characteristic in a remaining portion.
    Type: Application
    Filed: October 12, 2006
    Publication date: February 15, 2007
    Inventors: Kanji Matsutani, Kaoru Ohgane, Toshiyuki Takase
  • Root canal treatment tool and method for manufacturing the same
    Patent number: 7137815
    Abstract: The present invention relates to a root canal treatment tool that is formed in a shape of a rod and has a work portion formed in a predetermined length from a tip and a shank formed in a manner continuous with the work portion. The work portion has a shape memory characteristic in a range of a predetermined length from the tip and a superelastic characteristic in a remaining portion.
    Type: Grant
    Filed: May 28, 2004
    Date of Patent: November 21, 2006
    Assignee: Mani, Inc.
    Inventors: Kanji Matsutani, Kaoru Ohgane, Toshiyuki Takase
  • Root canal treatment tool
    Publication number: 20060115786
    Abstract: A file A acting as a root canal treatment tool has a rod-shaped needle portion 1 that includes a working portion 4 of a predetermined length from a tip 3 and a shank 5 formed continuously to the working portion 4 and is composed of Ni—Ti alloy, wherein at a part of the working portion or the entire working portion is subjected to heat treatment paying attention to durability to rotation fatigue.
    Type: Application
    Filed: November 28, 2005
    Publication date: June 1, 2006
    Inventors: Kanji Matsutani, Kaoru Ohgane, Toshiyuki Takase
  • Root canal treatment tool and method for manufacturing the same
    Publication number: 20050003325
    Abstract: The present invention relates to a root canal treatment tool that is formed in a shape of a rod and has a work portion formed in a predetermined length from a tip and a shank formed in a manner continuous with the work portion. The work portion has a shape memory characteristic in a range of a predetermined length from the tip and a superelastic characteristic in a remaining portion.
    Type: Application
    Filed: May 28, 2004
    Publication date: January 6, 2005
    Inventors: Kanji Matsutani, Kaoru Ohgane, Toshiyuki Takase
  • Rotary drilling instrument
    Patent number: 5816807
    Abstract: There is provided a rotary drilling instrument having uniform hardness, free from rust, and made of austenitic stainless steel possessing a hardness substantially the same as quenched steel or quenched martensitic stainless steel. The rotary drilling instrument is formed with a cutting section formed at one end of a body, a shank formed at the other end of the body, and a neck portion formed between the cutting section and the shank. The rotary drilling instrument is made of austenitic stainless steel having a fibriform organization elongated in a longitudinal direction and has a surface having a predetermined hardness.
    Type: Grant
    Filed: January 31, 1996
    Date of Patent: October 6, 1998
    Assignee: Kabushiki Kaisha Matsutani Seisakusho
    Inventors: Kanji Matsutani, Satoshi Tezuka, Kaoru Ohgane