Issued Patents All Time
Showing 1–18 of 18 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12227674 | Polishing composition comprising polishing particles having high water affinity | Shigeru Mitsui, Eiichiro ISHIMIZU | 2025-02-18 |
| 10550300 | Method for producing purified active silicic acid solution and silica sol | Kiyomi Ema, Noriyuki Takakuma, Naoki Kawashita, Kouji Yamaguchi | 2020-02-04 |
| 10400147 | Method for producing purified active silicic acid solution and silica sol | Kiyomi Ema, Noriyuki Takakuma, Naoki Kawashita, Kouji Yamaguchi | 2019-09-03 |
| 9938155 | Method for producing purified alkali silicate aqueous solution and silica sol | Kiyomi Ema, Noriyuki Takakuma, Naoki Kawashita, Kouji Yamaguchi | 2018-04-10 |
| 9108855 | Method for producing purified alkali silicate aqueous solution and silica sol | Kiyomi Ema, Noriyuki Takakuma, Naoki Kawashita, Kouji Yamaguchi | 2015-08-18 |
| 7887714 | Cerium oxide sol and abrasive | Isao Ota, Kenji Tanimoto | 2011-02-15 |
| 7578862 | Abrasive compound for glass hard disk platter | Isao Ota, Kenji Tanimoto | 2009-08-25 |
| 6887289 | Cerium oxide sol and abrasive | Isao Ota, Kenji Tanimoto | 2005-05-03 |
| 6719819 | Polishing composition | Isao Ota, Gen Yamada | 2004-04-13 |
| 6706082 | Crystalline ceric oxide sol and process for producing the same | Isao Ota, Kenji Tanimoto | 2004-03-16 |
| 6522872 | Up/Down tuner | Masanori Kitaguchi | 2003-02-18 |
| 6440187 | Alumina powder, process for producing the same and polishing composition | Toshio Kasai, Kiyomi Ema, Isao Ota | 2002-08-27 |
| 6398827 | Polishing composition | Isao Ota, Yoshitane Watanabe, Yoshiyuki Kashima, Kiyomi Ema, Yutaka Ohmori | 2002-06-04 |
| 6372003 | Polishing abrasive of crystalline ceric oxide particles having surfaces modified with hydroxyl groups | Toshio Kasai, Isao Ota, Takao Kaga, Kenji Tanimoto | 2002-04-16 |
| 6007592 | Polishing composition for aluminum disk and polishing process therewith | Toshio Kasai, Isao Ota, Takao Kaga | 1999-12-28 |
| 5962343 | Process for producing crystalline ceric oxide particles and abrasive | Toshio Kasai, Isao Ota, Takao Kaga, Kenji Tanimoto | 1999-10-05 |
| 5790220 | Liquid crystal display and method of fabricating same with a black resin film covered an exposed portion of the wiring region on the outside of the sealing layer | Kazunori Sakamoto | 1998-08-04 |
| 5543126 | Process for preparing crystalline ceric oxide | Isao Ota | 1996-08-06 |