Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9457120 | Air purifier | — | 2016-10-04 |
| 9303841 | Ultraviolet light-emitting module and ultraviolet irradiation device | — | 2016-04-05 |
| 7090221 | Seal device | Yoshiaki Takigahira | 2006-08-15 |
| 5447316 | Gas seal | — | 1995-09-05 |
| 4728505 | Process for producing gallium-containing solution from the aluminum smelting dust | Akio Era, Hidetsugu Ikeda | 1988-03-01 |
| 4725414 | Process for producing gallium-containing solution from aluminum smelting dust | Hidetsuga Ikeda, Akio Era | 1988-02-16 |
| 4639355 | Process for recovering gallium from aluminum smelting dust | Hidetsugu Ikeda, Akio Era, Sanji Nishimura | 1987-01-27 |