Inventor
YAMASHITA SHIGEO
JP15 patents
⚠️ This page may combine multiple inventors who share the name “YAMASHITA SHIGEO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HITACHI LTD
7 patentsUS4337443AJun 29, 1982
Semiconductor laser device with facet passivation film
HITACHI LTD53 citations96
US4506366AMar 19, 1985
Semiconductor laser device
HITACHI LTD29 citations92
US4257011AMar 17, 1981
Semiconductor laser device
HITACHI LTD24 citations82
US4288757ASep 8, 1981
Semiconductor laser device
HITACHI LTD17 citations73
US4780879AOct 25, 1988
Semiconductor laser device having little astigmatism
HITACHI LTD14 citations72
US4361887ANov 30, 1982
Semiconductor light emitting element
HITACHI LTD18 citations72
US4426702AJan 17, 1984
Semiconductor laser device
HITACHI LTD11 citations71