Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4313753 | Process for producing potassium silicate fertilizer and apparatus for practicing said process | Hiroshi Segawa | 1982-02-02 |
| 4293523 | Apparatus for producing potassium silicate fertilizer | Hiroshi Segawa | 1981-10-06 |