Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7366751 | Framework system | Kunihito Ishibashi, Mitsuru Maeshima, Narihiro Okumura, Isao Sakashita | 2008-04-29 |
| 7177899 | Framework system | Kunihito Ishibashi, Mitsuru Maeshima, Narihiro Okumura, Isao Sakashita | 2007-02-13 |