Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5360156 | Welding management apparatus | Yuji Ishizaka, Osamu Masuda, Hiroyasu Kimura | 1994-11-01 |
| 5265787 | Welding management apparatus | Yuji Ishizaka, Osamu Masuda, Hiroyasu Kimura | 1993-11-30 |