Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11496823 | Earpiece | — | 2022-11-08 |
| 4701473 | Catalyst for producing polyurethane foams coated with skin | Masazumi Hasegawa, Shoji Arai | 1987-10-20 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11496823 | Earpiece | — | 2022-11-08 |
| 4701473 | Catalyst for producing polyurethane foams coated with skin | Masazumi Hasegawa, Shoji Arai | 1987-10-20 |