YI

Yukio Ishigaki

AD Advantest: 2 patents #26 of 141Top 20%
HI Hitachi: 1 patents #1,533 of 3,950Top 40%
Overall (2002): #17,916 of 266,432Top 7%
3
Patents 2002

Issued Patents 2002

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
6442938 Waste processing system and fuel reformer used in the waste processing system Tsutomu Okusawa, Kazuhito Koyama, Masahiko Yamagishi, Shigeo Hatamiya, Taiko Ajiro +2 more 2002-09-03
6417682 Semiconductor device testing apparatus and its calibration method Toshikazu Suzuki, Hiroyuki Nagai, Noriyoshi Kozuka, Shigeru Matsumura, Takashi Sekizuka +3 more 2002-07-09
6369601 Method of measuring a propagation delay time through a transmission path in a semiconductor integrated circuit testing apparatus and semiconductor integrated circuit testing apparatus using the same 2002-04-09