Issued Patents 2018
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10130914 | Pleat cartridge filter | Yoshiichi Masuda, Takumi Kojima | 2018-11-20 |
| 10052717 | Underwater welding apparatus and underwater welding method | Tatsuya Ishigaki, Takuya Uehara, Yoshio Hamamoto, Takeshi Maehara, Hiromi Kato | 2018-08-21 |
| 9987597 | Microporous membrane and manufacturing process therefor | Osamu Kojima, Tadashi NAGASAKO | 2018-06-05 |