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Inventor
NISHIKITA KAZUYUKI
JP
2 patents
⚠️ This page may combine multiple inventors who share the name “NISHIKITA KAZUYUKI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
KOYO SEIKO CO
1 patent
US6745472B2
Jun 8, 2004
Manufacturing method of steel ball for rolling bearing
KOYO SEIKO CO
11 citations
71
TSUBAKI NAKASHIMA CO LTD
1 patent
US6423111B1
Jul 23, 2002
Ball for ball-point pen
TSUBAKI NAKASHIMA CO LTD
4 citations
58