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Inventor
HARAKAWA MICHIHARU
JP
3 patents
⚠️ This page may combine multiple inventors who share the name “HARAKAWA MICHIHARU”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
NIPPON OIL CO LTD
2 patents
US4717331A
Jan 5, 1988
Spinning nozzle
NIPPON OIL CO LTD
14 citations
69
US4579645A
Apr 1, 1986
Starting pitch for carbon fibers
NIPPON OIL CO LTD
6 citations
61
NIPPON STEEL CORP
1 patent
US5968435A
Oct 19, 1999
Process for manufacturing pitch-type carbon fiber
NIPPON STEEL CORP
8 citations
72