Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4812897 | Semiconductor element sealing structure | Ryoichi Narita, Toshio Sonobe, Hitoshi Ito, Junji Ishikawa, Junji Sugiura | 1989-03-14 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4812897 | Semiconductor element sealing structure | Ryoichi Narita, Toshio Sonobe, Hitoshi Ito, Junji Ishikawa, Junji Sugiura | 1989-03-14 |