Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4309482 | Magnetic recording medium | Takashi Suzuki, Akihiro Imai | 1982-01-05 |
| 4214994 | Reverse osmosis membrane | Motoi Kitano, Yukio Sakamoto | 1980-07-29 |
IS
Isao Sumita
Overall (All Time): #2,364,871 of 4,157,543Top 60%
2
Patents All Time