Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Ceramic ball, ball bearing, motor having bearing, hard disk drive, polygon scanner, and method for manufacturing ceramic ball

Ceramic ball, ball bearing, motor having bearing, hard disk drive, polygon scanner, and method for manufacturing ceramic ball

US Patent 7029623 · Granted Apr 18, 2006

Estimated economic value: $22,000 ⓘ

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Carrier device and ceramic member2017
Carrier device and ceramic member2016
Zirconia containing ceramic ball, method for manufacturing same, ceramic ball be2004
Ceramic ball for bearing and ceramic ball bearing using the same2003
Conductive ceramic bearing ball, ball bearing, motor having bearing, hard disk d2003
Sintered silicon nitride member and ceramic ball2002
Method of manufacturing spherical bodies by rotation, spherical bodies made by t2002
Ceramic bearing ball2001
Sintered ceramic mainly composed of alumina and a sintered ceramic part consisti1999
Porous ceramic material and producing method of same, and valve unit1999
Porous ceramic material1997
Car kiln wheel having silicon nitride rotating members1997