Issued Patents 1997
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5661404 | Circuit network measurement device and calibration method | Koichi Yanagawa, Atsushi Ishihara, Tatsuo Furukawa | 1997-08-26 |
| 5645419 | Heat treatment method and device | Tetsu Ohsawa, Hisashi Kikuchi, Shingo Watanabe, Keiji Takano, Tsutomu Haraoka +1 more | 1997-07-08 |
| D380454 | Wafer boat | Katsutoshi Ishii, Hitoshi Kato | 1997-07-01 |
| D378675 | Wafer boat | — | 1997-04-01 |