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Inventor
YASUDA SUMIHIRO
JP
2 patents
⚠️ This page may combine multiple inventors who share the name “YASUDA SUMIHIRO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
TDK INC
1 patent
US4874924A
Oct 17, 1989
PTC heating device
TDK INC
117 citations
88
TDK CORP
1 patent
US4728779A
Mar 1, 1988
PTC heating device
TDK CORP
34 citations
88