Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11154803 | Electret fiber sheet | Yuji Iyama, Takuji Kobayashi | 2021-10-26 |
| 9691935 | Impurity-diffusing composition and method for producing semiconductor element | Seiichiro Murase, Hiroji Shimizu, Kouichi Dan, Mitsuhito Suwa | 2017-06-27 |