Inventor
OKUMACHI EIJI
JP7 patents
⚠️ This page may combine multiple inventors who share the name “OKUMACHI EIJI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
NIPPON PILLAR PACKING
6 patentsUS5664787ASep 9, 1997
Non-contacting shaft sealing device
NIPPON PILLAR PACKING72 citations94
US5501470AMar 26, 1996
Non-contacting shaft sealing device with grooved face pattern
NIPPON PILLAR PACKING64 citations94
US6431551B1Aug 13, 2002
Non-contact type mechanical seal
NIPPON PILLAR PACKING32 citations91
US6325378B1Dec 4, 2001
Shaft seal apparatus
NIPPON PILLAR PACKING25 citations91
US5529318AJun 25, 1996
Non-contacting shaft sealing device
NIPPON PILLAR PACKING44 citations91
US5398943AMar 21, 1995
Seal device of the non-contact type
NIPPON PILLAR PACKING19 citations72