NK

Naoyuki Kofuji

HH Hitachi High-Technologies: 15 patents #211 of 1,917Top 15%
HI Hitachi: 11 patents #3,813 of 28,497Top 15%
EM Elpida Memory: 2 patents #267 of 692Top 40%
HM Hitachi Maxell: 1 patents #659 of 1,211Top 55%
MA Maxell: 1 patents #286 of 437Top 70%
📍 Tama, JP: #16 of 402 inventorsTop 4%
Overall (All Time): #122,813 of 4,157,543Top 3%
30
Patents All Time

Issued Patents All Time

Showing 26–30 of 30 patents

Patent #TitleCo-InventorsDate
6677244 Specimen surface processing method Tetsuo Ono, Yasuhiro Nishimori, Takashi Sato, Masaru Izawa, Yasushi Goto +7 more 2004-01-13
6573190 Dry etching device and dry etching method Masaru Izawa, Shinichi Tachi, Kenetsu Yokogawa, Nobuyuki Negishi 2003-06-03
6492277 Specimen surface processing method and apparatus Tetsuo Ono, Yasuhiro Nishimori, Takashi Sato, Masaru Izawa, Yasushi Goto +7 more 2002-12-10
6332425 Surface treatment method and system Shin Arai, Kazunori Tsujimoto, Tatsumi Mizutani, Keizo Suzuki, Kenichi Mizuishi 2001-12-25
6231777 Surface treatment method and system Shin Arai, Kazunori Tsujimoto, Tatsumi Mizutani, Keizo Suzuki, Kenichi Mizuishi 2001-05-15