Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4794221 | Apparatus and method for exchanging electrode chips used for resistance welding | Masashi Kitadate, Makoto Sumiyoshi, Kiyohiko Igarashi, Kazuo Suzuki, Takashi Akita | 1988-12-27 |