Inventor · disambiguated record
Donald M. Lewis
Also filed as: LEWIS DONALD M
4 granted patents·75 citations·filing 1994–1996
79Inventor score
Files withMINNESOTA MINING & MFG4
Top patents by PatentIndex Score
4 records- 0173US5589247AMagnetic recording medium having an embossed backcoat layerMINNESOTA MINING & MFG·Filed 1996·Granted Dec 31, 1996·23 cites·6 claims
- 0265US5620514ADifferential-speed gravure coating of magnetizable layers in the manufacture of magnetic recording mediaMINNESOTA MINING & MFG·Filed 1995·Granted Apr 15, 1997·24 cites·14 claims
- 0365US5447747AMethod and apparatus for smoothing gravure coatings in the manufacture of magnetic recording tapeMINNESOTA MINING & MFG·Filed 1994·Granted Sep 5, 1995·18 cites·15 claims
- 0453US5686142AProcess of producing magnetic recording tape having textured backcoatMINNESOTA MINING & MFG·Filed 1996·Granted Nov 11, 1997·10 cites·13 claims
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