Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5853948 | Positive photoresist compositions and multilayer resist materials using the same | Atsushi Sawano, Kousuke Doi, Hidekatsu Kohara, Toshimasa Nakayama | 1998-12-29 |
| 4473046 | Direct injection type internal combustion engine | Taro Aoyama, Yujiro Oshima, Kiyokazu Sunami | 1984-09-25 |