YI

Yasuyoshi Imai

NI Ngk Insulators: 2 patents #947 of 2,083Top 50%
Overall (All Time): #2,145,144 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
7416793 Electrostatic chuck and manufacturing method for the same, and alumina sintered member and manufacturing method for the same Hiroto Matsuda, Kazuhiro Nobori, Tetsuya Kawajiri 2008-08-26
7353979 Method of fabricating substrate placing stage Tomoyuki Fujii, Tetsuya Kawajiri 2008-04-08