Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5111377 | Interconnection for electric power system | Hiromasa Higasa, Fumihiko Ishikawa, Shigenori Matsumura, Masayoshi Kumano | 1992-05-05 |
| 5051375 | Method of producing semiconductor wafer through gettering using spherical abrasives | Yasunori Oka, Toshio Naritomi | 1991-09-24 |