Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8349135 | Papermaking additive and filled paper | Tomohiko Nakata, Yoshiharu Hashiguchi, Takashi Yamaguchi, Masaki Ito, Yasunobu Ooka | 2013-01-08 |
| 8241462 | Papermaking internal sizing agent and use thereof | Takahiro Fujiwara, Kazushige Inaoka, Takashi Yamaguchi, Masaki Ito, Yasunobu Ooka | 2012-08-14 |
| 8171956 | Liquid supply method and apparatus | Toshikazu Suganuma, Yasushi Tomita, Naoki Hada, Katsuhiko Kazama | 2012-05-08 |
| 7902276 | Surface sizing agent and use thereof | Yoko Hayashi | 2011-03-08 |
| 6967003 | Artificial lung of membrane type | Toru Takehisa, Susumu Kashiwabara, Hidenori Tanaka, Masaki Satoh, Hisateru Takano +3 more | 2005-11-22 |
| 6884359 | Apparatus and method for controlling resistivity of ultra pure water | Toshio Kambe, Kazumi Oi, Koji Kawase | 2005-04-26 |
| 6158721 | Apparatus and method for adding carbon dioxide gas to ultra pure water | Hitoshi Katou, Toshio Kambe, Kazumi Oi | 2000-12-12 |
| 5236588 | Asymmetric polymer membrane and preparation thereof | Husheng Zhang, Takanori Anazawa | 1993-08-17 |
| 4907956 | Apparatus for manufacturing optical information recording medium | Kozo Ezaki, Sadaaki Shigeta, Noboru Murakami, Yasuyuki Tsuchiya, Yuichi Fujita | 1990-03-13 |
| 4788015 | Process for preparation of optical disk substrate | Yoshio Yokokawa | 1988-11-29 |