YH

Yokichi Hayashi

AD Advantest: 3 patents #330 of 1,193Top 30%
Overall (All Time): #1,639,390 of 4,157,543Top 40%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
5764093 Variable delay circuit Hiroshi Tsukahara, Katsumi Ochiai, Masuhiro Yamada, Naoyoshi Watanabe 1998-06-09
5495197 Variable delay circuit Hiroshi Tsukahara, Katsumi Ochiai, Masuhiro Yamada, Naoyoshi Watanabe 1996-02-27
5440260 Variable delay circuit Hiroshi Tsukahara, Katsumi Ochiai, Mashuhiro Yamada, Naoyoshi Watanabe 1995-08-08