Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5455081 | Process for coating diamond-like carbon film and coated thin strip | Morihiro Okada, Kiyoshi Yoshikawa, Yasushi Yamamoto | 1995-10-03 |
| 4703222 | Hall accelerator with preionization discharge | Kiyoshi Yoshikawa, Makoto Ueda, Hiroshi Tamagaki | 1987-10-27 |