Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Magnetic recording medium having a binder system including a polyurethane polymer having both phosphonate and quaternary ammonium pendant groups

Magnetic recording medium having a binder system including a polyurethane polymer having both phosphonate and quaternary ammonium pendant groups

US Patent 6139982 · Granted Oct 31, 2000

Estimated economic value: $1,936,000 ⓘ

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Surface modification of magnetic particle pigments2000
Formation and photographic use of solid particle dye dispersions2000
Surface modification of magnetic particle pigments1999
Magnetic recording medium having a binder comprising a star block polymer with d1998
Binder system for magnetic media1998
Developing agents for (photo) thermographic systems1997
Magnetic recording medium having a binder system including a non halogenated vin1996