Title:
金属被覆層を有するリング材の平均直径修正方法
Document Type and Number:
Japanese Patent JP4446530
Kind Code:
B2
Inventors:
Yasuo Watanabe
Yoshinobu Soji
Ken Yatabe
Tadanobu Miyakawa
Yoshinobu Soji
Ken Yatabe
Tadanobu Miyakawa
Application Number:
JP34111899A
Publication Date:
April 07, 2010
Filing Date:
November 30, 1999
Export Citation:
Assignee:
Dai-ichi Kogyo Kogyo Co., Ltd.
International Classes:
B21D3/00; B21D39/10
Domestic Patent References:
| JP1237036A | ||||
| JP58152337U |
Attorney, Agent or Firm:
Kyozo Norimatsu