Inventor
HITOSUGI HIDESHI
JP8 patents
⚠️ This page may combine multiple inventors who share the name “HITOSUGI HIDESHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
NIPPON PISTON RING CO LTD
6 patentsUS9528606B2Dec 27, 2016
Combined oil ring
NIPPON PISTON RING CO LTD6 citations72
US10724636B2Jul 28, 2020
Combined oil ring
NIPPON PISTON RING CO LTD2 citations67
US6726218B2Apr 27, 2004
Compression piston ring for use in internal combustion engine
NIPPON PISTON RING CO LTD3 citations59
US6682078B2Jan 27, 2004
Ring groove for oil ring with coil expander of piston
NIPPON PISTON RING CO LTD4 citations58
US6547251B1Apr 15, 2003
Ring groove for oil ring with coil expander of piston
NIPPON PISTON RING CO LTD4 citations58
US10520085B2Dec 31, 2019
Combined oil ring
NIPPON PISTON RING CO LTD0 citations31