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Inventor
AKIMOTO NAOYUKI
JP
3 patents
⚠️ This page may combine multiple inventors who share the name “AKIMOTO NAOYUKI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
NIPPON PISTON RING CO LTD
2 patents
US11047479B2
Jun 29, 2021
Method for producing piston ring with recess
NIPPON PISTON RING CO LTD
0 citations
59
US10514097B2
Dec 24, 2019
Method for producing piston ring with recess
NIPPON PISTON RING CO LTD
0 citations
48
ITO MICHIHIRO
1 patent
US9464717B2
Oct 11, 2016
Piston ring
ITO MICHIHIRO
3 citations
64