Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5677229 | Method for manufacturing semiconductor device isolation region | Fumitomo Matsuoka, Hisao Yoshimura, Takeo Maeda | 1997-10-14 |
| 5609344 | Spiral gasket having a centering spring | Kenji Tamaoki, Hideaki Shimamoto, Masaki Kawada, Michio Fujino, Youzi Hamazaki | 1997-03-11 |