Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8652437 | Method of manufacturing artificial zeolite | Takayuki Nakamura, Toshiaki Ubukata, Hirokuni Matsuda, Shuji Tada | 2014-02-18 |
| 8568687 | Method of manufacturing solid acid catalyst | Toru Tonegawa, Toshiaki Ubukata, Hirokuni Matsuda, Shuji Tada | 2013-10-29 |
| 6692722 | Manufacturing method of zeolite from waste | Takao Ando, Yoshihisa Asada | 2004-02-17 |
| 6299854 | Method of producing artificial zeolite | Etsuro Sakagami | 2001-10-09 |