Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9511905 | Synthetic resin container closure and combination of same and container | Youichi Tsujiguchi, Shinji Ooka, Shinji Oomori, Mitsuo Kumata, Hiroomi Matsutani +1 more | 2016-12-06 |
| 7575121 | Plastic cap featuring excellent sealing and venting | Shinji Ooka, Yuji Tomitaka, Shinya Matsumoto | 2009-08-18 |