Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5518627 | Method for treating water or an aqueous solution | Masao Tomoi, Teruo Onozuka, Manabu Shindo, Hideaki Kiniwa, Hirohisa Kubota | 1996-05-21 |
| 5369132 | Method for producing a spherical acrylonitrile crosslinked copolymer | Tsuyoshi Ito, Junya Watanabe | 1994-11-29 |
| 5314974 | Method for producing a spherical acrylonitrile crosslinked copolymer | Tsuyoshi Ito, Junya Watanabe | 1994-05-24 |
| 5248435 | Ion exchange resin, process for producing the same, and method for removing impurities from condensate | Takamitsu Morita, Junya Watanabe | 1993-09-28 |