| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 4 | |
| #2 | United States | 4 | |
| #3 | France | 2 | |
| #4 | United Kingdom | 2 | |
| #5 | Italy | 2 | |
| #6 | USSR (Union of Socialist Soviet Republics) | 2 | |
| #7 | Australia | 1 | |
| #8 | Belgium | 1 | |
| #9 | Canada | 1 | |
| #10 | EPO (European Patent Office) | 1 | |
| #11 | Netherlands | 1 | |
| #12 | New Zealand | 1 |
| # | Industry | |
|---|---|---|
| #1 | Basic materials chemistry | |
| #2 | Chemical engineering | |
| #3 | Environmental technology | |
| #4 | Machines |
| # | Name | Total Patents |
|---|---|---|
| #1 | Shimizu Hirozo | 5 |
| #2 | Takahashi Chigo | 5 |
| #3 | Fujita Toshio | 5 |
| #4 | Yasuhara Minoru | 3 |
| #5 | Yagyu Yoshinobu | 3 |
| #6 | Yoshida Shigemitsu | 3 |
| #7 | Ushioda Tsunezo | 2 |
| #8 | Fujita T | 2 |
| #9 | Ohshima Masanari | 2 |
| #10 | Takakhasi Tigo | 1 |
| Publication | Filing date | Title |
|---|---|---|
| EP0976699A1 | Granular fertilizer coated with decomposable coating film and process for producing the same | |
| NZ188099A | Coated granular fertilizers | |
| GB1485812A | Method for producing coated fertilizer |