Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6767391 | Air filter | Minoru Tanaka, Jun Shimada, Haruko Sasaki | 2004-07-27 |
| 6730468 | Silver halide photographic emulsion and photographic light-sensitive material using the same | Katsumi Kobayashi, Takanori Hioki | 2004-05-04 |