Issued Patents All Time
Showing 26–26 of 26 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5439868 | Absorbents for removing low-concentration nitrogen oxides | Shigenori Onitsuka, Masayoshi Ichiki, Chikashi Inazumi, Takanobu Watanabe, Atsushi Fukuju +2 more | 1995-08-08 |