Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10604477 | Urea manufacturing method and urea manufacturing apparatus | Keishi Sato, Kenji Yoshimoto | 2020-03-31 |
| 10501407 | Urea manufacturing method and urea manufacturing apparatus | Maghfuri Baharuddin, Genshi Nishikawa | 2019-12-10 |
| 10173972 | Method for producing high-purity aqueous urea solution in urea production process | Shuhei Nakamura, Keishi Sato | 2019-01-08 |
| 7582237 | Process for preparing granular urea product | Eiji Sakata, Genshi Nishikawa | 2009-09-01 |
| 7153693 | Method and apparatus for determining urea concentration | Yoshihiro Tajiri, Takuya Hayabuchi, Naohiro Teramoto, Yasuhiko Kojima, Eiji Sakata | 2006-12-26 |
| 5965071 | Process for preparing granular urea | Hidetsugu Fujii | 1999-10-12 |
| 4504679 | Process for synthesizing urea | Shigeru Inoue, Hiroshi Ono, Akito Fukui, Hidetsugu Fujii, Suguru Watanabe | 1985-03-12 |
| 4321410 | Method of stripping unreacted materials in urea synthesis process | Hiroshi Ono, Hidetsugu Fujii, Akito Fukui | 1982-03-23 |
| 4311856 | Process for synthesizing urea | Shigeru Inoue, Hiroshi Ono, Akito Fukui | 1982-01-19 |