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Inventor
URASHIMA CHIKAYUKI
JP
2 patents
⚠️ This page may combine multiple inventors who share the name “URASHIMA CHIKAYUKI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
NIPPON STEEL BOLTEN CO LTD
1 patent
US4189975A
Feb 26, 1980
Screwed connection having improved fatigue strength
NIPPON STEEL BOLTEN CO LTD
32 citations
84
OMI KOGYO KK
1 patent
US5938378A
Aug 17, 1999
Apparatus for boring webs of steel sections
OMI KOGYO KK
9 citations
69