Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6310026 | Method of cleaning and surface processing of inorganic filler utility | Hideaki Shintani, Yasuhiro Yoshida, Kenichi Shirai, Bart Van Meerbeek, Daisuke Usuki | 2001-10-30 |
| 4793923 | Gradient density filter medium | Teruichi Kadoya, Tatsuo Ohta, Takashi Nagashima, Daisuke Horiuchi, Naoki Ebisui | 1988-12-27 |
| 4744162 | Container and clip assembly | — | 1988-05-17 |