Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11279904 | Cleaning liquid composition | Areji Takanaka, Takuo Ohwada | 2022-03-22 |
| 9334470 | Cleaning liquid composition for electronic device | Yumiko Taniguchi, Chiyoko Horike, Takuo Ohwada | 2016-05-10 |