Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6472604 | Seal construction of polymer insulator | Itsushi Nakamura | 2002-10-29 |
| 5323839 | Mold for forming a collar on an external periphery of a metal cap | Hiroto Matsuo, Iwaji Kawamoto, Seiichi Kondo | 1994-06-28 |
| 5295529 | Method of forming zinc collar on insulator metal cap and mold therefor | Hiroto Matsuo, Seiichi Kondo, Iwaji Kawamoto | 1994-03-22 |
| 5172297 | Lightning arrestor | Tetsuya Nakayama | 1992-12-15 |