Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6488749 | Rust preventive | Yasuo Fukutani, Kikuko Fukutani, Yukio Wada, Shinya Fukushima, Eiichiro Nakayama | 2002-12-03 |
| 6448207 | Metal working fluid | Kikuko Fukutani, Mie Tanaka, Eiichiro Nakayama, Shinya Fukushima, Kosuke WADA +1 more | 2002-09-10 |