CY

Chikafumi Yokoyama

3M: 3 patents #78 of 1,133Top 7%
Overall (2002): #31,528 of 266,432Top 15%
3
Patents 2002

Issued Patents 2002

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
6479417 Glass-ceramic microspheres that impart yellow color to retroreflected light Matthew H. Frey, Charles J. Studiner, III, Kenton D. Budd, Toshihro Kasai, Stephen B. Roscoe +1 more 2002-11-12
6461988 Transparent microspheres Kenton D. Budd, Toshihiro Kasai, Stephen B. Roscoe, John E. Bailey 2002-10-08
6335083 Transparent beads and their production method Toshihiro Kasai, Kenton D. Budd, Stephen L. Lieder, James A. Laird, Toshinori Naruse +2 more 2002-01-01