Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8714562 | Lip type end face sealing device | Takehiro Nakagawa, Akihiro Sato, Tetsuo Tasaki, Hiromi Takahashi, Hiroshi Okubo +1 more | 2014-05-06 |
| 8101096 | Conductive rubber member | — | 2012-01-24 |
| 7875331 | Conductive rubber member | Naoki Hirakawa | 2011-01-25 |
| 7806412 | Lip type end face sealing device | Takehiro Nakagawa, Akihiro Sato, Tetsuo Tasaki, Hiromi Takahashi, Hiroshi Okubo +1 more | 2010-10-05 |
| 7638196 | Conductive rubber member | Naoki Hirakawa | 2009-12-29 |
| 7537717 | Method of manufacturing two-layer roll and method of manufacturing cylindrical member | Takashi Noda, Takeshi Yanobe, Shinobu Hasegawa | 2009-05-26 |
| 6534180 | Charge-imparting member | — | 2003-03-18 |