Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5323839 | Mold for forming a collar on an external periphery of a metal cap | Hiroto Matsuo, Takashi Imakoma, Seiichi Kondo | 1994-06-28 |
| 5295529 | Method of forming zinc collar on insulator metal cap and mold therefor | Hiroto Matsuo, Takashi Imakoma, Seiichi Kondo | 1994-03-22 |
| 4922993 | Method of forming a zinc sleeve on an insulator pin | Hiroto Matsuo, Masamichi Ishihara, Takaaki Nakagawa | 1990-05-08 |