Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5703778 | Traffic control method for relieving vehicle congestion on parallel roads | Kazunori Takahashi, Nobuhiro Hamada, Masao Takatoo, Tohru Nagai, Souichi Furukawa | 1997-12-30 |
| 5646853 | Traffic control system | Kazunori Takahashi, Nobuhiro Hamada, Masao Takatoo, Tohru Nagai | 1997-07-08 |
| 4740697 | Secondary ion mass spectrometer | — | 1988-04-26 |
| 4420548 | Electrophotographic member with hydrazone or ketazine compounds | Kiyoshi Sakai, Minoru Mabuchi, Yuji Egarashi, Shozo Ishikawa | 1983-12-13 |