Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4998245 | Information transmission system having collective data transmission and collection devices | Shotaro Tanaka, Masao Ikezaki, Takeshi Goto | 1991-03-05 |
| 4872162 | Communication system | Shotaro Tanaka, Masao Ikezaki, Hiroshi Sasanuma | 1989-10-03 |