Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Non-porous and porous Al.sub.2 O.sub.3 barrier zones in layered electrophotographic device

Non-porous and porous Al.sub.2 O.sub.3 barrier zones in layered electrophotographic device

US Patent 4369242 · Granted Jan 18, 1983

Estimated economic value: $12,979,000 ⓘ

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Anti-reflection optical data storage disk master2008
Fabrication of sandwiched construction media2006
Sandwich holographic disk construction with thin molded substrates2005
Anti-reflective coating for holographic data storage media2005
Thermoplastic substrates for holographic data storage media2003
Magneto-optical data storage disc with highly conductive, smooth reflector layer2001
Magneto-optic recording medium with reduced demagnetizing field threshold2001
System and method for conditioning a radiation detector1996
Photovoltaic device having light transmitting electrically conductive stacked fi1990