Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4992714 | Band pass filter device and a method of filtering using such a device | Osami Matsushita, Michiyuki Takagi, Toyomi Yoshida, Naohiko Takahashi | 1991-02-12 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4992714 | Band pass filter device and a method of filtering using such a device | Osami Matsushita, Michiyuki Takagi, Toyomi Yoshida, Naohiko Takahashi | 1991-02-12 |