Inventor

UNOZAWA HEIICHI

JP3 patents

⚠️ This page may combine multiple inventors who share the name “UNOZAWA HEIICHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

FERROTEC CORP

2 patents

US6305694B1Oct 23, 2001

Ferrofluid sealing device

FERROTEC CORP29 citations83

US8007176B2Aug 30, 2011

Dynamic pressure bearing and rotation machine employing same

FERROTEC CORP0 citations38

(unassigned)

1 patent

US6290233B1Sep 18, 2001

Sealing apparatus

19 citations88