The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 19, 2001
Filed:
Jul. 12, 1999
Shigeru Isoyama, Chiba, JP;
Takeshi Hirabayashi, Chiba, JP;
Hideyuki Nikaido, Chiba, JP;
Toshiaki Amagasa, Chiba, JP;
Nozomu Tamura, Chiba, JP;
Takahiro Yamasaki, Chiba, JP;
Masashi Osada, Chiba, JP;
Hirosuke Yamada, Chiba, JP;
Toshisada Takechi, Chiba, JP;
Norio Takashima, Chiba, JP;
Junzo Nitta, Chiba, JP;
Shuji Amanuma, Chiba, JP;
Kanji Hayashi, Hiroshima, JP;
Akio Kuroda, Hiroshima, JP;
Yoshiki Mito, Hiroshima, JP;
Kunio Miyamoto, Hiroshima, JP;
Kazuo Morimoto, Hiroshima, JP;
Ikuo Wakamoto, Hiroshima, JP;
Kazuya Tsurusaki, Hiroshima, JP;
Hideo Sakamoto, Amagasaki, JP;
Michio Hashimoto, Amagasaki, JP;
Hiroyuki Nakano, Amagasaki, JP;
Toshinobu Eguchi, Amagasaki, JP;
Fumihiro Maeda, Amagasaki, JP;
Abstract
According to the invention, the rear end of a preceding metal piece and a front end of a succeeding metal piece are heated, pressed and joined prior to the finishing hot rolling. An alternating magnetic field running through the metal pieces in the thickness direction thereof is generated in an end region on opposed faces of the respective metal pieces to perform heating. Another alternating magnetic field whose direction is reverse with respect to that of the former alternating magnetic field is partially generated in the end region on the opposed faces of the metal pieces and in either a region where the metal pieces exist or a region outside width ends of the metal pieces. This assures a uniform heating of the end region on the opposed faces of the metal pieces over their full width to reliably join the both metal pieces to each other.