YK

Yoshiaki Kohama

NI Nikon: 12 patents #351 of 2,493Top 15%
EB Ebara: 2 patents #752 of 1,611Top 50%
Overall (All Time): #354,677 of 4,157,543Top 9%
14
Patents All Time

Issued Patents All Time

Showing 1–14 of 14 patents

Patent #TitleCo-InventorsDate
RE41665 Object observation apparatus and object observation Muneki Hamashima, Yoichi Watanabe 2010-09-14
7439502 Electron beam apparatus and device production method using the electron beam apparatus Mamoru Nakasuji, Tohru Satake, Nobuharu Noji, Hirosi Sobukawa, Tsutomu Karimata +6 more 2008-10-21
RE40221 Object observation apparatus and object observation Muneki Hamashima, Yoichi Watanabe 2008-04-08
7244932 Electron beam apparatus and device fabrication method using the electron beam apparatus Mamoru Nakasuji, Tohru Satake, Nobuharu Noji, Hirosi Sobukawa, Tsutomu Karimata +6 more 2007-07-17
6958477 Electron beam apparatus, and inspection instrument and inspection process thereof 2005-10-25
6953944 Scanning device and method including electric charge movement Akihiro Goto, Muneki Hamashima, Yukiharu Okubo 2005-10-11
6677587 Electron beam apparatus, and inspection instrument and inspection process thereof 2004-01-13
6670602 Scanning device and scanning method Akihiro Goto, Muneki Hamashima, Yukiharu Okubo 2003-12-30
6518582 Electron beam apparatus, and inspection instrument and inspection process thereof 2003-02-11
6479819 Object observation apparatus and object observation Muneki Hamashima, Yoichi Watanabe 2002-11-12
6184526 Apparatus and method for inspecting predetermined region on surface of specimen using electron beam Muneki Hamashima, Shigeru Takemoto 2001-02-06
5780853 Scanning electron microscope Futoshi Mori, Kazuhiko Fukazawa, Hiroshi Hirose 1998-07-14
5646403 Scanning electron microscope Futoshi Mori, Kazuhiko Fukazawa, Hiroshi Hirose 1997-07-08
5466936 Charged particle microscope Kaoru Ohmori 1995-11-14