Issued Patents 2002
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6406204 | Oily ink for writing instrument | Hiroshi Inoue | 2002-06-18 |
| 6336964 | Ozone indicator and ozone sensor ink | Hiroshi Inoue | 2002-01-08 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6406204 | Oily ink for writing instrument | Hiroshi Inoue | 2002-06-18 |
| 6336964 | Ozone indicator and ozone sensor ink | Hiroshi Inoue | 2002-01-08 |