Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8691741 | Liquid detergent composition | Hitoshi Ishizuka, Kyoko Okada, Toshio Miyake | 2014-04-08 |
| 7928048 | Softening detergent composition | Toshihiro Oki, Motomitsu Hasumi, Hiroshi Nishimura | 2011-04-19 |
| 5972074 | Method for reducing impurities in misch metal and alloys | Hiroshi Sumida, Masao Hidaka | 1999-10-26 |