Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4777189 | Production of polyurethane foam | Kenji Shimomura, Toru Okuyama, Take Sato | 1988-10-11 |
| 4696952 | Production of polyurethane foam | Kenji Shimomura, Toru Okuyama, Take Sato | 1987-09-29 |
SK
Shigeaki Kouketsu
Ikeda Bussan Co.: 2 patents #63 of 235Top 30%
Overall (All Time): #2,339,077 of 4,157,543Top 60%
2
Patents All Time