Title:
METHOD FOR MANUFACTURING RING-SHAPED MEMBER
Document Type and Number:
WIPO Patent Application WO/2007/043565
Kind Code:
A1
Abstract:
The cost of a ring-shaped member is reduced by improving the yield, i.e., the ratio of
the weight of the ring-shaped member to the weight of a material. A plurality of
vertically long annular blanks (3) are punched out from the material (2) having a
prescribed width, and the vertically long annular blanks (3) are formed on the annular
ring-shaped member (1).
Inventors:
KANEMITSU TOSHIAKI (JP)
KANEMITSU SHUJI (JP)
ODA MISAO (JP)
OHNISHI MASATAKA (JP)
FUJII NAOKI (JP)
ODA KAZUYUKI (JP)
KANEMITSU SHUJI (JP)
ODA MISAO (JP)
OHNISHI MASATAKA (JP)
FUJII NAOKI (JP)
ODA KAZUYUKI (JP)
Application Number:
PCT/JP2006/320287
Publication Date:
April 19, 2007
Filing Date:
October 11, 2006
Export Citation:
Assignee:
KANEMITSU CORP (JP)
KANEMITSU TOSHIAKI (JP)
KANEMITSU SHUJI (JP)
ODA MISAO (JP)
OHNISHI MASATAKA (JP)
FUJII NAOKI (JP)
ODA KAZUYUKI (JP)
KANEMITSU TOSHIAKI (JP)
KANEMITSU SHUJI (JP)
ODA MISAO (JP)
OHNISHI MASATAKA (JP)
FUJII NAOKI (JP)
ODA KAZUYUKI (JP)
International Classes:
B21D28/06; B21D53/16
Foreign References:
JPS455144B1 | ||||
JPH0647139B2 | 1994-06-22 | |||
JPS58128231A | 1983-07-30 |
Attorney, Agent or Firm:
SUZUE, Shoji et al. (2-4 Komatsubara-cho, Kita-k, Osaka-shi Osaka, JP)
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