Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6099731 | Method and apparatus for treating water | Hiroo Uchiyama, Masayoshi Kitagawa, Tatsuo Shimomura, Takeshi Hasegawa | 2000-08-08 |
| 4182765 | Oil soluble fungicide obtained from the reaction of a quaternary ammonium salt and an alkyl benzene sulfonic acid | Yasuo Fujiwara | 1980-01-08 |