P

Inventor

OKA KENJI

JP71 patents
⚠️ This page may combine multiple inventors who share the name “OKA KENJI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

HITACHI LTD

19 patents
US6947587B1Sep 20, 2005

Defect inspection method and apparatus

HITACHI LTD88 citations99
US5774222AJun 30, 1998

Manufacturing method of semiconductor substrative and method and apparatus for inspecting defects of patterns on an object to be inspected

HITACHI LTD167 citations99
US6690469B1Feb 10, 2004

Method and apparatus for observing and inspecting defects

HITACHI LTD98 citations98
US6169282B1Jan 2, 2001

Defect inspection method and apparatus therefor

HITACHI LTD107 citations98
US6091075AJul 18, 2000

Automatic focus detection method, automatic focus detection apparatus, and inspection apparatus

HITACHI LTD99 citations98
US6456951B1Sep 24, 2002

Method and apparatus for processing inspection data

HITACHI LTD58 citations96
US6404498B1Jun 11, 2002

Manufacturing method of semiconductor substrate and method and apparatus for inspecting defects of patterns on an object to be inspected

HITACHI LTD38 citations96
US6263099B1Jul 17, 2001

Manufacturing method of semiconductor substrate and method and apparatus for inspecting defects of patterns of an object to be inspected

HITACHI LTD56 citations96
US7417723B2Aug 26, 2008

Method of inspecting a semiconductor device and an apparatus thereof

HITACHI LTD10 citations93
US7274813B2Sep 25, 2007

Defect inspection method and apparatus

HITACHI LTD18 citations93
US7221486B2May 22, 2007

Method and apparatus for picking up 2D image of an object to be sensed

HITACHI LTD33 citations93
US6674890B2Jan 6, 2004

Defect inspection method and apparatus therefor

HITACHI LTD41 citations93
US6507417B1Jan 14, 2003

Method and apparatus for picking up 2D image of an object to be sensed

HITACHI LTD23 citations93
US7092095B2Aug 15, 2006

Method and apparatus for observing and inspecting defects

HITACHI LTD11 citations84
US7916929B2Mar 29, 2011

Defect inspection method and apparatus

HITACHI LTD5 citations74
US7643138B2Jan 5, 2010

Method of inspecting a semiconductor device and an apparatus thereof

HITACHI LTD5 citations74
US7512259B2Mar 31, 2009

Defect inspection method and apparatus

HITACHI LTD7 citations74
US8040503B2Oct 18, 2011

Method of inspecting a semiconductor device and an apparatus thereof

HITACHI LTD2 citations63
US7499162B2Mar 3, 2009

Method and apparatus for observing and inspecting defects

HITACHI LTD2 citations63

FUJITSU TEN LTD

6 patents

HITACHI HIGH TECH CORP

4 patents

RENESAS TECH CORP

3 patents

TSUKIZAWA SOTARO

3 patents

OKA KENJI

2 patents

DAICEL CHEM

2 patents

HITACHI HIGH TECH ELECT ENG CO

1 patent

MAEDA SHUNJI

1 patent

MAZDA MOTOR

1 patent

NICHIA CORP

1 patent

WAKAI YOHEI

1 patent

PANASONIC CORP

1 patent

NEMOTO KAZUNORI

1 patent

HAMAMATSU AKIRA

1 patent

TOKICO LTD

1 patent

LENOVO SINGAPORE PTE LTD

1 patent

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD

1 patent

Showing the top 50 of 71 patents by PatentIndex Score.