DC

Daniel Y. Chang

3M: 2 patents #5,326 of 11,543Top 50%
Overall (All Time): #2,256,290 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
5705253 Video recording tapes suitable for high speed contact duplication Alvin M. Berg, Benedict L. Bezenek, Thomas M. Bohlsen, James G. Carlson, John Christopher Harvey +3 more 1998-01-06
5510187 Magnetic recording medium whose magnetic layer incorporates nonhalogenated vinyl copolymer and specified polyurethane polymer Ramesh C. Kumar, Ravindra L. Arudi, James G. Carlson, John C. Haidos, Keith J. Modert +2 more 1996-04-23