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| US6219940 | 19 May 1999 | 24 Apr 2001 | Mizuno Corporation | Athletic shoe midsole design and construction |
| US6311414 | 23 Jun 1999 | 6 Nov 2001 | Mizuno Corporation | Athletic shoe midsole design and construction |
| US6314664 | 10 Nov 1999 | 13 Nov 2001 | Mizuno Corporation | Athletic shoe midsole design and construction |
| US6625905 | 31 Aug 2001 | 30 Sep 2003 | Mizuno Corporation | Midsole structure of athletic shoe |
| US6647645 | 31 Aug 2001 | 18 Nov 2003 | Mizuno Corporation | Midsole structure of athletic shoe |
