Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10392283 | Method and apparatus for treating accompanied water from a well | Shigeki Fujiwara, Eri Watanabe, Yohei Tomida, Takeshi Tsuji, Yasuhiro Minamizato +2 more | 2019-08-27 |
| 7776224 | Apparatus for treating ballast water and method for treating ballast water | Yukihiko Okamoto, Shigeki Fujiwara, Keisuke Nakahara, Masakuni Inoko, Sho Ishida | 2010-08-17 |
| 6393463 | Electronic mail communication apparatus, electronic mail system, and electronic mail communication method | — | 2002-05-21 |