Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8893686 | Suction filter | Katsuhisa Yamada, Tetsuro Okazono, Hironobu Oki, Akihiro Ishitoya | 2014-11-25 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8893686 | Suction filter | Katsuhisa Yamada, Tetsuro Okazono, Hironobu Oki, Akihiro Ishitoya | 2014-11-25 |