Issued Patents 1982
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4314216 | Mechanical filter | Takashi Gounji, Kenji Shirai | 1982-02-02 |
YK
Yoshihiko Kasai
Overall (1982): #22,105 of 81,411Top 30%
1
Patents 1982