Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7109022 | Composition containing calcium carbonate particles dispersed in sulfur for removing nitrate nitrogen | Atsushi Yatagai, Tomomichi Gunji, Hiroshi Masujima, Takuma Yabe | 2006-09-19 |
| 7047186 | Voice decoder, voice decoding method and program for decoding voice signals | — | 2006-05-16 |