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THK AMERICA, INC. v. NSK, LTD.

No. 90 C 6049.

917 F.Supp. 563 (1996)

THK AMERICA, INC., Plaintiff, v. NSK, LTD. and NSK Corporation, Defendants.

United States District Court, N.D. Illinois, Eastern Division.

As Amended January 17, 1996.

Attorney(s) appearing for the Case

Robert E. Wagner, James J. Jagoda, Wallenstein & Wagner, Chicago, IL, John E. Kidd, John E. Daniel, Michael A. O'Shea, Neil G. Cohen, Marni J. Beck, Rogers & Wells, New York City, James E. Armstrong, III, Ken-Ichi Hattori, Armstrong, Westerman, Hattori, McLeland & Naughton, Washington, DC, for Plaintiff.

Edward M. O'Toole, Allen H. Gerstein, Kevin D. Hogg, Anthony Nimmo, Marshall, O'Toole, Gerstein, Murray & Borun, Chicago, IL, for Defendants.

MEMORANDUM OPINION AND ORDER

ASHMAN, United States Magistrate Judge.

This case was brought by Plaintiff, THK America, Inc. ("THK"), charging Defendants, NSK, Ltd. and NSK Corporation (collectively, "NSK"), with willful infringement of U.S. Patents 4,040,679 ("'679 Patent") and 4,253,709 ("'709 Patent"). NSK has counterclaimed that THK's patents are invalid, unenforceable and/or not infringed. The alleged infringing devices are linear grids —...

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