Issued Patents 2021
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 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 |