Issued Patents 2002
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6478040 | Gas supplying apparatus and gas substitution method | Tsutomu Kikuchi, Akira Nishina, Tetsuya Kimijima | 2002-11-12 |
| 6474136 | Method and apparatus for analyzing impurities in gases | Akira Nishina, Makoto Tanaka | 2002-11-05 |
| 6391482 | Organic material for electroluminescent device and electroluminescent device using the same | Mikiko Matsuo, Yoshio Kishimoto, Hitoshi Hisada, Hisanori Sugiura | 2002-05-21 |