Inventor

YAMAMURA HISAE

JP5 patents

⚠️ This page may combine multiple inventors who share the name “YAMAMURA HISAE”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

HITACHI LTD

4 patents

US5780866AJul 14, 1998

Method and apparatus for automatic focusing and a method and apparatus for three dimensional profile detection

HITACHI LTD62 citations95

US5373471ADec 13, 1994

Semiconductor memory device having redundancy memory cells for replacing defective

HITACHI LTD31 citations92

US6333992B1Dec 25, 2001

Defect judgement processing method and apparatus

HITACHI LTD47 citations91

US6622054B1Sep 16, 2003

Method monitoring a quality of electronic circuits and its manufacturing condition and system for it

HITACHI LTD36 citations90

(unassigned)

1 patent

US5459794AOct 17, 1995

Method and apparatus for measuring the size of a circuit or wiring pattern formed on a hybrid integrated circuit chip and a wiring board respectively