Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6627368 | Organic metal complex compound and electrostatic image developing toner using the same | Masaki Okubo, Masataka Sawano | 2003-09-30 |
| 6120958 | Electrostatic image developing toner | Masaki Ookubo, Kaoru Kasahara | 2000-09-19 |