Issued Patents 1994
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5352953 | Gas-filled discharge tube | Seiichi Wakabayashi, Yukio Sone, Toshikazu Ashizawa | 1994-10-04 |
| 5350919 | Quantitative analyzing method by a secondary ion mass spectrometric method and a secondary ion mass spectrometer | Takeshige Tanigaki, Hideki Kimura | 1994-09-27 |