Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7404487 | Commodity package | Katsuhiko Kumakura, Masaru Kanda | 2008-07-29 |
| D508849 | Container for dry batteries | Katsuhiko Kumakura, Futoshi Tada | 2005-08-30 |
| D507484 | Container for dry batteries | Katsuhiko Kumakura, Futoshi Tada | 2005-07-19 |
| D497547 | Container for dry batteries | Katsuhiko Kumakura, Masaru Kanda | 2004-10-26 |
| D494464 | Container for dry batteries | Katsuhiko Kumakura, Masaru Kanda | 2004-08-17 |
| D489253 | Container for dry batteries | Katsuhiko Kumakura, Masaru Kanda | 2004-05-04 |