Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6667551 | Semiconductor device and manufacturing thereof, including a through-hole with a wider intermediate cavity | Terunao Hanaoka, Kenji Wada, Nobuaki Hashimoto, Kazushige Umetsu, Fumiaki Matsushima | 2003-12-23 |
| 6608371 | Semiconductor device and method of manufacturing the same, circuit board, and electronic equipment | Yohei Kurashima, Kazushige Umetsu | 2003-08-19 |