Title:
BATTERY POLE PLATE GRID PRODUCING METHOD, AND BATTERY PRODUCING METHOD
Document Type and Number:
WIPO Patent Application WO/2004/015795
Kind Code:
A1
Abstract:
A battery pole plate grid producing method wherein a grid is formed from a sheet by a rotary type expander having a group of circular plate cutters provided with an extreme end circular plate cutter, the method being characterized in that the outer periphery of the extreme end circular plate cutter is provided with a notch extending through in the direction of the thickness of the extreme end circular plate cutter.
Inventors:
FUJIWARA YOSHIOMI (JP)
NISHIDA TADASHI (JP)
NISHIDA TADASHI (JP)
Application Number:
PCT/JP2003/010184
Publication Date:
February 19, 2004
Filing Date:
August 08, 2003
Export Citation:
Assignee:
JAPAN STORAGE BATTERY CO LTD (JP)
FUJIWARA YOSHIOMI (JP)
NISHIDA TADASHI (JP)
FUJIWARA YOSHIOMI (JP)
NISHIDA TADASHI (JP)
International Classes:
B21D31/04; H01M4/74; (IPC1-7): H01M4/74; B21D31/04
Foreign References:
| JP2002015741A | 2002-01-18 | |||
| JP2002260676A | 2002-09-13 | |||
| JP2003257435A | 2003-09-12 |
Attorney, Agent or Firm:
Kawasaki, Masaki (Keihan Marquis Umeda 5-5, Nishitemma 4-chome, Kita-k, Osaka-shi Osaka, JP)
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