Inventor
TSUCHIYA TAKEJI
JP6 patents
⚠️ This page may combine multiple inventors who share the name “TSUCHIYA TAKEJI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
NIPPON PISTON RING CO LTD
5 patentsUS5104132AApr 14, 1992
Piston ring having nitriding layer and composite ni-b plating layer
NIPPON PISTON RING CO LTD23 citations90
US5124007AJun 23, 1992
Composite plating bath
NIPPON PISTON RING CO LTD7 citations72
US4473232ASep 25, 1984
Oil scraper ring with controlled gap arrangement
NIPPON PISTON RING CO LTD15 citations71
US5193820AMar 16, 1993
Three-piece type oil ring assembly
NIPPON PISTON RING CO LTD9 citations67
US5552030ASep 3, 1996
Method of making a magnetic material in the form of a multilayer film by plating
NIPPON PISTON RING CO LTD0 citations51