Issued Patents 2017
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9620323 | Vacuum tube | Tadami Maeda, Misa Yamanaka, Fumio Mieda | 2017-04-11 |
| 9589758 | Vacuum tube | Tadami Maeda, Misa Yamanaka | 2017-03-07 |
| 9583300 | Vacuum tube | Tadami Maeda, Misa Yamanaka, Fumio Mieda | 2017-02-28 |