P

Inventor

HORAI IZUO

JP7 patents
⚠️ This page may combine multiple inventors who share the name “HORAI IZUO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

HITACHI ELECTR ENG

4 patents
US5245403ASep 14, 1993

Apparatus for detecting extraneous substances on a glass plate

HITACHI ELECTR ENG71 citations95
US5898491AApr 27, 1999

Surface defect test method and surface defect tester

HITACHI ELECTR ENG41 citations92
US6057926AMay 2, 2000

Magnetic disk testing method and surface defect testing device

HITACHI ELECTR ENG29 citations91
US5875027AFeb 23, 1999

Sensitivity calibration disk for surface defect tester

HITACHI ELECTR ENG16 citations73

HITACHI HIGH TECH CORP

1 patent
US7777876B2Aug 17, 2010

Inspection method and inspection device

HITACHI HIGH TECH CORP27 citations90

HORAI IZUO

1 patent
US9007581B2Apr 14, 2015

Inspection method and inspection device

HORAI IZUO13 citations78

HITACHI HIGH TECH ELECT ENG CO

1 patent
US6888918B2May 3, 2005

Surface inspection method and surface inspection apparatus

HITACHI HIGH TECH ELECT ENG CO11 citations70