Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12331408 | Surface-treated steel sheet | Atsuo Shimizu, Yoshikatsu NISHIDA, Hiromasa Shoji | 2025-06-17 |
| 11280004 | Water-based treatment solution, chemical conversion treatment method, and chemical-conversion-treated steel sheet | Masanori Matsuno | 2022-03-22 |
| 10788472 | Method for evaluating the quality of steam-treated products | Tadashi Nakano | 2020-09-29 |
| 10697053 | Method for manufacturing black plated steel sheet, apparatus for manufacturing black plated steel sheet, and system for manufacturing black plated steel sheet | Tadashi Nakano, Masaya Yamamoto | 2020-06-30 |