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Patents by Patent Owner: A & A Material Corporation
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US Patent No.
6,379,457
Yamamoto, Masahiko
Ibaraki-ken, JP
Karibe, Hajime
Chiba-ken, JP
Sotokawa, Sachiko
Chiba-ken, JP
Harada, Hiroshi
Saitama-ken, JP
US Patent No.
6,391,435
Akiyama, Norihito
Yokohama, JP
Irie, Shoichiro
Yokohama, JP