Inventor
OHSHIMA YOSHIMASA
JP53 patents
⚠️ This page may combine multiple inventors who share the name “OHSHIMA YOSHIMASA”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HITACHI LTD
27 patentsUS6411377B1Jun 25, 2002
Optical apparatus for defect and particle size inspection
HITACHI LTD174 citations99
US5463459AOct 31, 1995
Method and apparatus for analyzing the state of generation of foreign particles in semiconductor fabrication process
HITACHI LTD145 citations99
US5274434ADec 28, 1993
Method and apparatus for inspecting foreign particles on real time basis in semiconductor mass production line
HITACHI LTD218 citations99
US5233191AAug 3, 1993
Method and apparatus of inspecting foreign matters during mass production start-up and mass production line in semiconductor production process
HITACHI LTD145 citations98
US4740079AApr 26, 1988
Method of and apparatus for detecting foreign substances
HITACHI LTD72 citations96
US7940383B2May 10, 2011
Method of detecting defects on an object
HITACHI LTD42 citations95
US7417721B2Aug 26, 2008
Defect detector and defect detecting method
HITACHI LTD20 citations93
US7417723B2Aug 26, 2008
Method of inspecting a semiconductor device and an apparatus thereof
HITACHI LTD10 citations93
US7332359B2Feb 19, 2008
Semiconductor device inspection method
HITACHI LTD20 citations93
US6936835B2Aug 30, 2005
Method and its apparatus for inspecting particles or defects of a semiconductor device
HITACHI LTD34 citations93
US5135303AAug 4, 1992
Method of and apparatus for inspecting surface defects
HITACHI LTD39 citations93
US4922308AMay 1, 1990
Method of and apparatus for detecting foreign substance
HITACHI LTD43 citations93
US7692779B2Apr 6, 2010
Apparatus and method for testing defects
HITACHI LTD12 citations92
US7639350B2Dec 29, 2009
Apparatus and method for testing defects
HITACHI LTD25 citations92
US7443496B2Oct 28, 2008
Apparatus and method for testing defects
HITACHI LTD16 citations92
US6731384B2May 4, 2004
Apparatus for detecting foreign particle and defect and the same method
HITACHI LTD44 citations92
US6650409B1Nov 18, 2003
Semiconductor device producing method, system for carrying out the same and semiconductor work processing apparatus included in the same system
HITACHI LTD39 citations92
US6597448B1Jul 22, 2003
Apparatus and method of inspecting foreign particle or defect on a sample
HITACHI LTD44 citations92
US5225886AJul 6, 1993
Method of and apparatus for detecting foreign substances
HITACHI LTD54 citations92
US4614430ASep 30, 1986
Method of detecting pattern defect and its apparatus
HITACHI LTD40 citations92
US4460273AJul 17, 1984
Test apparatus for defects of plate
HITACHI LTD30 citations92
US7426023B2Sep 16, 2008
Method and apparatus for detecting defects
HITACHI LTD13 citations84
US7643138B2Jan 5, 2010
Method of inspecting a semiconductor device and an apparatus thereof
HITACHI LTD5 citations74
US4814596AMar 21, 1989
Detection of surface particles by dual semiconductor lasers having stable illumination intensities
HITACHI LTD16 citations74
US4433235AFeb 21, 1984
Focusing position detecting device in optical magnifying and observing apparatus
HITACHI LTD14 citations74
US8040503B2Oct 18, 2011
Method of inspecting a semiconductor device and an apparatus thereof
HITACHI LTD2 citations63
US7411207B2Aug 12, 2008
Method and its apparatus for inspecting particles or defects of a semiconductor device
HITACHI LTD4 citations63
HITACHI HIGH TECH CORP
15 patentsUS7248352B2Jul 24, 2007
Method for inspecting defect and apparatus for inspecting defect
HITACHI HIGH TECH CORP66 citations98
US7098055B2Aug 29, 2006
Apparatus and method for testing defects
HITACHI HIGH TECH CORP36 citations96
US7037735B2May 2, 2006
Apparatus and method for testing defects
HITACHI HIGH TECH CORP43 citations96
US7315363B2Jan 1, 2008
Inspection method and inspection apparatus
HITACHI HIGH TECH CORP14 citations93
US7061602B2Jun 13, 2006
Method of inspecting a semiconductor device and an apparatus thereof
HITACHI HIGH TECH CORP18 citations93
US7369223B2May 6, 2008
Method of apparatus for detecting particles on a specimen
HITACHI HIGH TECH CORP25 citations92
US8013989B2Sep 6, 2011
Defects inspecting apparatus and defects inspecting method
HITACHI HIGH TECH CORP7 citations84
US7643139B2Jan 5, 2010
Method and apparatus for detecting defects
HITACHI HIGH TECH CORP8 citations84
US7262425B2Aug 28, 2007
Method and its apparatus for inspecting particles or defects of a semiconductor device
HITACHI HIGH TECH CORP13 citations84
US7903244B2Mar 8, 2011
Method for inspecting defect and apparatus for inspecting defect
HITACHI HIGH TECH CORP3 citations74
US7586594B2Sep 8, 2009
Method for inspecting defect and apparatus for inspecting defect
HITACHI HIGH TECH CORP4 citations74
US7817261B2Oct 19, 2010
Method of apparatus for detecting particles on a specimen
HITACHI HIGH TECH CORP4 citations73
US7768634B2Aug 3, 2010
Defects inspecting apparatus and defects inspecting method
HITACHI HIGH TECH CORP3 citations63
US7567343B2Jul 28, 2009
Method and apparatus for detecting defects on a wafer
HITACHI HIGH TECH CORP4 citations63
US7952700B2May 31, 2011
Method of apparatus for detecting particles on a specimen
HITACHI HIGH TECH CORP2 citations62
HAMAMATSU AKIRA
4 patentsUS8274651B2Sep 25, 2012
Method of inspecting a semiconductor device and an apparatus thereof
HAMAMATSU AKIRA3 citations74
US8094295B2Jan 10, 2012
Inspection method and inspection apparatus
HAMAMATSU AKIRA1 citations63
US8289507B2Oct 16, 2012
Method of apparatus for detecting particles on a specimen
HAMAMATSU AKIRA2 citations62
US8559000B2Oct 15, 2013
Method of inspecting a semiconductor device and an apparatus thereof
HAMAMATSU AKIRA0 citations52
RENESAS TECH CORP
2 patentsUS7177020B2Feb 13, 2007
Method and apparatus for analyzing the state of generation of foreign particles in semiconductor fabrication process
RENESAS TECH CORP15 citations92
US6894773B2May 17, 2005
Method and apparatus for analyzing the state of generation of foreign particles in semiconductor fabrication process
RENESAS TECH CORP11 citations74
HITACHI HIGH TECH ELECT ENG CO
1 patentUTO SACHIO
1 patentShowing the top 50 of 53 patents by PatentIndex Score.