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Naoto Nakashima

HI Hitachi: 8 patents #5,191 of 28,497Top 20%
Overall (All Time): #670,475 of 4,157,543Top 20%
8
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
5008702 Exposure method and apparatus Tsutomu Tanaka, Yoshitada Oshida, Masataka Shiba, Ryuichi Funatsu 1991-04-16
4993837 Method and apparatus for pattern detection Yoshitada Oshida, Yasuhiro Yoshitake, Masataka Shiba 1991-02-19
4862008 Method and apparatus for optical alignment of semiconductor by using a hologram Yoshitada Oshida, Yasuhiro Yoshitake 1989-08-29
4819033 Illumination apparatus for exposure Yasuhiro Yoshitake, Yoshitada Oshida, Masataka Shiba 1989-04-04
4779986 Reduction projection system alignment method and apparatus Yoshitada Oshida 1988-10-25
4744666 Alignment detection optical system of projection type aligner Yoshitada Oshida, Toshihiko Nakata 1988-05-17
4701050 Semiconductor exposure apparatus and alignment method therefor Yoshitada Oshida, Masataka Shiba, Toshihiko Nakata, Sachio Uto 1987-10-20
4668089 Exposure apparatus and method of aligning exposure mask with workpiece Yoshitada Oshida, Masataka Shiba, Toshihiko Nakata, Mitsuyoshi Koizumi 1987-05-26