Patents by Inventor Kazuyuki Hiranaga

Kazuyuki Hiranaga 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).

  • Coin type battery and manufacturing method thereof
    Patent number: 7588606
    Abstract: A positive electrode plate (11) and a negative electrode plate (12) are coiled around into a flat shape such that positive electrode layer faces (22a-22e) and negative electrode layer faces (23a-23f) are alternately layered upon one another with a separator interposed therebetween. Positional discrepancy detecting holes (41a, 41b, 42, 43, 44) are formed in the positive electrode layer faces (22a, 22b) and negative electrode layer face (23a) facing each other at the coiling start end, and in the positive electrode layer face (22e) and negative electrode layer face (23f) facing each other at the coiling finish end. The electrode plates are coiled into an electrode plate group, which is subjected to X-ray inspection for detecting positional displacement based on a discrepancy in the positions of the holes.
    Type: Grant
    Filed: March 13, 2006
    Date of Patent: September 15, 2009
    Assignee: Panasonic Corporation
    Inventors: Tetsuya Hayashi, Kazuyuki Hiranaga, Takahiro Teraoka, Shinichi Sakamoto, Satoshi Ogawa
  • Coin type battery and manufacturing method thereof
    Publication number: 20060154143
    Abstract: A positive electrode plate (11) and a negative electrode plate (12) are coiled around into a flat shape such that positive electrode layer faces (22a-22e) and negative electrode layer faces (23a-23f) are alternately layered upon one another with a separator interposed therebetween. Positional discrepancy detecting holes (41a, 41b, 42, 43, 44) are formed in the positive electrode layer faces (22a, 22b) and negative electrode layer face (23a) facing each other at the coiling start end, and in the positive electrode layer face (22e) and negative electrode layer face (23f) facing each other at the coiling finish end. The electrode plates are coiled into an electrode plate group, which is subjected to X-ray inspection for detecting positional displacement based on a discrepancy in the positions of the holes.
    Type: Application
    Filed: March 13, 2006
    Publication date: July 13, 2006
    Applicant: Matsushita Electric Industrial Co., Ltd.
    Inventors: Tetsuya Hayashi, Kazuyuki Hiranaga, Takahiro Teraoka, Shinichi Sakamoto, Satoshi Ogawa
  • Coin shaped battery and manufacturing method thereof
    Patent number: 7070880
    Abstract: A positive electrode plate (11) and a negative electrode plate (12) are coiled around into a flat shape such that positive electrode layer faces (22a–22e) and negative electrode layer faces (23a–23f) are alternately layered upon one another with a separator interposed therebetween. Positional discrepancy detecting holes (41a, 41b, 42, 43, 44) are formed in the positive electrode layer faces (22a, 22b) and negative electrode layer face (23a) facing each other at the coiling start end, and in the positive electrode layer face (22e) and negative electrode layer face (23f) facing each other at the coiling finish end. The electrode plates are coiled into an electrode plate group, which is subjected to X-ray inspection for detecting positional displacement based on a discrepancy in the positions of the holes.
    Type: Grant
    Filed: August 9, 2002
    Date of Patent: July 4, 2006
    Assignee: Matsushita Electric Industrial Co., ltd.
    Inventors: Tetsuya Hayashi, Kazuyuki Hiranaga, Takahiro Teraoka, Shinichi Sakamoto, Satoshi Ogawa
  • Coin-shaped cell, and manufactuing method thereof
    Publication number: 20040028997
    Abstract: A positive electrode plate (11) and a negative electrode plate (12) are coiled around into a flat shape such that positive electrode layer faces (22a-22e) and negative electrode layer faces (23a-23f) are alternately layered upon one another with a separator interposed therebetween. Positional discrepancy detecting holes (41a, 41b, 42, 43, 44) are formed in the positive electrode layer faces (22a, 22b) and negative electrode layer face (23a) facing each other at the coiling start end, and in the positive electrode layer face (22e) and negative electrode layer face (23f) facing each other at the coiling finish end. The electrode plates are coiled into an electrode plate group, which is subjected to X-ray inspection for detecting positional displacement based on a discrepancy in the positions of the holes.
    Type: Application
    Filed: April 10, 2003
    Publication date: February 12, 2004
    Inventors: Tetsuya Hayashi, Kazuyuki Hiranaga, Takahiro Teraoka, Shinichi Sakamoto, Satoshi Ogawa