Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5580847 | Aqueous ammonia composition | Fumihiro Morikawa, Akihisa Yoshikawa, Norio Ishikawa | 1996-12-03 |
| 5326490 | Surface tension sulfuric acid composition | Kiyoto Mori, Hisao Hara | 1994-07-05 |