Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9040094 | Flaky particle and cosmetic | Keiji Ono, Takuro Ashida, Hiroyuki Izumikawa | 2015-05-26 |
| 7985289 | Ultrafine barium sulfate particle, water-based coating composition, and water-based ink composition | Keiji Ono, Hiroyuki Izumikawa | 2011-07-26 |
| 5580377 | Plate barium sulfate and process for producing the same | Koichi Ohtsu, Noriaki Sato | 1996-12-03 |