Patents by Inventor Tsuyoshi Temma

Tsuyoshi Temma 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).

  • Negative electrode carbon material for lithium ion secondary battery and manufacturing method thereof
    Patent number: 7981395
    Abstract: A negative electrode carbon material for a lithium ion secondary battery manufactured by calcinating a rice starch portion obtained by removing the pericarp and tests from unpolished rice and a method for manufacturing the same. The rice starch portion is preferably middle-grade white bran or high-grade white bran each obtained when unpolished rice is polished. The above negative electrode carbon material may have a relatively broad peak at a 2? of 40 to 50° and a sharp peak at a 2? of 42 to 44° in its powder X-ray (CuK?) diffraction. According to the present invention, a negative electrode carbon material for a lithium ion secondary battery which has the same quality as the prior art product can be manufactured at a low cost by making effective use of middle-grade white bran or high-grade white bran of rice.
    Type: Grant
    Filed: January 12, 2006
    Date of Patent: July 19, 2011
    Assignee: Enax, Inc.
    Inventors: Shoji Sasaki, Tsuyoshi Temma, Munehiro Kadowaki, Hironori Ozawa, Kazunori Ozawa, Syujun Shikano, Kanji Matsuda
  • Negative electrode carbon material for lithium ion secondary battery and manufacturing method thereof
    Publication number: 20070160909
    Abstract: Provided is a negative electrode carbon material for a lithium ion secondary battery manufactured by calcinating a rice starch portion obtained by removing the pericarp and testa from unpolished rice and a method for manufacturing the same. The rice starch portion is preferably middle-grade white bran or high-grade white bran each obtained when unpolished rice is polished. The above negative electrode carbon material preferably has a relatively broad peak at a 2? of 40 to 50° and a sharp peak at a 2? of 42 to 44° in its powder X-ray (CuK?) diffraction. According to the present invention, a negative electrode carbon material for a lithium ion secondary battery which has the same quality as the prior art product can be manufactured at a low cost by making effective use of middle-grade white bran or high-grade white bran of rice.
    Type: Application
    Filed: January 12, 2006
    Publication date: July 12, 2007
    Applicant: ENAX, INC.
    Inventors: Shoji Sasaki, Tsuyoshi Temma, Munehiro Kadowaki, Hironori Ozawa, Kazunori Ozawa, Syujun Shikano, Kanji Matsuda