Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5660648 | Microalloyed steel for hot forging free of subsequent quenching and tempering, process for producing hot forging, and a hot forging | Hiromasa Takada, Yoshiro Koyasu, Motohide Mori | 1997-08-26 |
| 5627680 | Eyepiece including an aspherical lens surface | — | 1997-05-06 |