Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6383646 | Sanitary ware and process for producing same | Yutaka Tomioka, Satoshi Horiuchi, Shingo Kasahara, Katsuhiro Kawakami, Hiroyuki Takada +3 more | 2002-05-07 |
| 5973096 | Process for purifying a polyether | Takashi Watabe, Hiroshi Hatano, Kazunori Chiba, Takao Doi, Etsuko Sakai +4 more | 1999-10-26 |
| 5929292 | Distillation column type production method | Toru Shimoyama, Kazuya Oharu, Seisaku Kumai | 1999-07-27 |
| 5811566 | Process for purifying a polyether | Takashi Watabe, Hiroshi Hatano, Kazunori Chiba, Takao Doi, Etsuko Sakai +4 more | 1998-09-22 |