Inventor
SUWA KYOICHI
JP39 patents
⚠️ This page may combine multiple inventors who share the name “SUWA KYOICHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
NIPPON KOGAKU KK
17 patentsUS4650983AMar 17, 1987
Focusing apparatus for projection optical system
NIPPON KOGAKU KK198 citations99
US4465368AAug 14, 1984
Exposure apparatus for production of integrated circuit
NIPPON KOGAKU KK474 citations98
US4748478AMay 31, 1988
Projection exposure apparatus
NIPPON KOGAKU KK61 citations96
US4734746AMar 29, 1988
Exposure method and system for photolithography
NIPPON KOGAKU KK72 citations96
US4677301AJun 30, 1987
Alignment apparatus
NIPPON KOGAKU KK90 citations96
US4666273AMay 19, 1987
Automatic magnification correcting system in a projection optical apparatus
NIPPON KOGAKU KK132 citations95
US4657379AApr 14, 1987
Photomask and exposure apparatus using the same
NIPPON KOGAKU KK34 citations93
US4390279AJun 28, 1983
Alignment device in an IC projection exposure apparatus
NIPPON KOGAKU KK30 citations93
US4741622AMay 3, 1988
Method and apparatus for detecting diversion
NIPPON KOGAKU KK40 citations92
US4704020ANov 3, 1987
Projection optical apparatus
NIPPON KOGAKU KK32 citations92
US4699515AOct 13, 1987
Process of transfer of mask pattern onto substrate and apparatus for alignment therebetween
NIPPON KOGAKU KK50 citations92
US4679942AJul 14, 1987
Method of aligning a semiconductor substrate and a photomask
NIPPON KOGAKU KK27 citations92
US4592625AJun 3, 1986
Double-conjugate maintaining optical system
NIPPON KOGAKU KK35 citations92
US4531060AJul 23, 1985
Positioning method
NIPPON KOGAKU KK112 citations92
US4423959AJan 3, 1984
Positioning apparatus
NIPPON KOGAKU KK40 citations89
US4566795AJan 28, 1986
Alignment apparatus
NIPPON KOGAKU KK21 citations82
US4770533ASep 13, 1988
Apparatus for detecting position of an object such as a semiconductor wafer
NIPPON KOGAKU KK11 citations74
NIKON CORP
15 patentsUS4908656AMar 13, 1990
Method of dimension measurement for a pattern formed by exposure apparatus, and method for setting exposure conditions and for inspecting exposure precision
NIKON CORP152 citations99
US5402224AMar 28, 1995
Distortion inspecting method for projection optical system
NIKON CORP150 citations98
US4931830AJun 5, 1990
Projection exposure apparatus
NIKON CORP108 citations96
US5777729AJul 7, 1998
Wafer inspection method and apparatus using diffracted light
NIKON CORP86 citations95
US5615006AMar 25, 1997
Imaging characteristic and asymetric abrerration measurement of projection optical system
NIKON CORP89 citations95
US6449031B1Sep 10, 2002
Method for use of a critical dimensional test structure
NIKON CORP17 citations92
US5870197AFeb 9, 1999
Precision stage interferometer system with local single air duct
NIKON CORP23 citations92
US5741614AApr 21, 1998
Atomic force microscope measurement process for dense photoresist patterns
NIKON CORP26 citations92
US5666205ASep 9, 1997
Measuring method and exposure apparatus
NIKON CORP25 citations91
US5434026AJul 18, 1995
Exposure condition measurement method
NIKON CORP47 citations91
US4965630AOct 23, 1990
Projection exposure apparatus
NIKON CORP50 citations91
US6855997B2Feb 15, 2005
Mask, exposure method, line width measuring method, and method for manufacturing semiconductor devices
NIKON CORP10 citations74
US4806987AFeb 21, 1989
Projection-exposing apparatus
NIKON CORP8 citations74
US6610460B2Aug 26, 2003
Exposure method
NIKON CORP2 citations62
US12019225B2Jun 25, 2024
Optical system, optical apparatus, imaging apparatus, and method for manufacturing optical system and imaging apparatus
NIKON CORP0 citations59
NIKON PRECISION INC
5 patentsUS5825043AOct 20, 1998
Focusing and tilting adjustment system for lithography aligner, manufacturing apparatus or inspection apparatus
NIKON PRECISION INC1,714 citations99
US6094256AJul 25, 2000
Method for forming a critical dimension test structure and its use
NIKON PRECISION INC29 citations92
US5838450ANov 17, 1998
Direct reticle to wafer alignment using fluorescence for integrated circuit lithography
NIKON PRECISION INC34 citations92
US5698069ADec 16, 1997
Technique for detecting particles on a wafer support surface
NIKON PRECISION INC20 citations92
US5835227ANov 10, 1998
Method and apparatus for determining performance characteristics in lithographic tools
NIKON PRECISION INC48 citations91