Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7285688 | Proton type β zeolite, preparation method thereof and process for preparing phenol compound using the same | Tomonori Kanougi, Shigeru Yao | 2007-10-23 |
| 6541073 | Zirconium oxide and zirconium oxide precursor and process for producing them | Shigeru Yao, Yoshihisa Kakuta, Tomonori Kanougi | 2003-04-01 |
| 6441250 | Process for producing dihydric phenol | Shigeru Yao, Tomonori Kanougi | 2002-08-27 |