Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5202546 | Root pass bead welding method | Shigeru Nakayama, Hisao Hasegawa, Masaki Tanaka | 1993-04-13 |
KM
Katsumi Miyagawa
Overall (All Time): #3,821,694 of 4,157,543Top 95%
1
Patents All Time