Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9378854 | Core catcher | Tomohisa Kurita, Mika Tahara, Mitsuo Komuro, Masashi Tanabe | 2016-06-28 |
| 9025721 | Holding device | Kunihiko Wada, Fumiyo Kuno, Yutaka Ishiwata, Tsuneji Kameda, Ryoichi Hamazaki | 2015-05-05 |