Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12312552 | Agent for forming solid lubricating coating film, oil country tubular goods, threaded joint for oil country tubular goods, and method for manufacturing oil country tubular goods | Yasuhide Ishiguro, Seigo Goto, Takashi Koga, Takamasa Kawai, Seiji Ozaki +6 more | 2025-05-27 |