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Inventor
KOBA AKIHIKO
JP
2 patents
⚠️ This page may combine multiple inventors who share the name “KOBA AKIHIKO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
NOK CORP
1 patent
US5165701A
Nov 24, 1992
Magnetic fluid seal apparatus
NOK CORP
26 citations
86
TOTO LTD
1 patent
US6966536B2
Nov 22, 2005
Flush valve device of flush toilet
TOTO LTD
35 citations
84