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Inventor
HAYAMI REIKO
JP
2 patents
⚠️ This page may combine multiple inventors who share the name “HAYAMI REIKO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HITACHI LTD
1 patent
US6600178B1
Jul 29, 2003
Heterojunction bipolar transistor
HITACHI LTD
19 citations
91
HITACHI DEVICE ENG
1 patent
US6974977B2
Dec 13, 2005
Heterojunction bipolar transistor
HITACHI DEVICE ENG
11 citations
72