P

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 patents
US6411377B1Jun 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 patents
US7248352B2Jul 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 patents

RENESAS TECH CORP

2 patents

HITACHI HIGH TECH ELECT ENG CO

1 patent

UTO SACHIO

1 patent

Showing the top 50 of 53 patents by PatentIndex Score.