Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11479737 | Water-soluble quenching oil composition | Katsumi Ichitani | 2022-10-25 |
| 11180817 | Water-based quenching liquid composition and method for manufacturing metal material using same | Takashi Kondo, Katsumi Ichitani | 2021-11-23 |
| 11015230 | Water-soluble quenching oil composition | Katsumi Ichitani | 2021-05-25 |