Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10662339 | Silica sol containing phenylphosphonic acid and applications thereof | Yoshiyuki Kashima, Daisuke Shimizu | 2020-05-26 |
| 10550300 | Method for producing purified active silicic acid solution and silica sol | Kiyomi Ema, Tohru Nishimura, Naoki Kawashita, Kouji Yamaguchi | 2020-02-04 |
| 10400147 | Method for producing purified active silicic acid solution and silica sol | Kiyomi Ema, Tohru Nishimura, Naoki Kawashita, Kouji Yamaguchi | 2019-09-03 |
| 9938155 | Method for producing purified alkali silicate aqueous solution and silica sol | Kiyomi Ema, Tohru Nishimura, Naoki Kawashita, Kouji Yamaguchi | 2018-04-10 |
| 9108855 | Method for producing purified alkali silicate aqueous solution and silica sol | Kiyomi Ema, Tohru Nishimura, Naoki Kawashita, Kouji Yamaguchi | 2015-08-18 |
| 8323368 | Production method of polishing composition | Isao Ota, Kenji Tanimoto | 2012-12-04 |
| 7484679 | Method of milling cerium compound by means of ball mill | Isao Ota, Kenji Tanimoto, Gen Yamada | 2009-02-03 |
| 7431758 | Cerium oxide particles and production method therefor | Isao Ota, Kenji Tanimoto | 2008-10-07 |