Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10328901 | User identification system and vehicular portable device | Kenichiro Sanji, Noritaka HIRAO, Suguru Matsushita, Takatoshi Sekizawa, Yasuhiro Tanaka | 2019-06-25 |
| 6640090 | Signal transmitter utilizing ask modulation wave | Takahide Kitahara, Noritoshi Furuta, Fumio Asakura | 2003-10-28 |
| 6218929 | Door entry control by wireless communication | Noritoshi Furuta, Fumio Asakura, Hiroto Uesaka, Yuji Kato | 2001-04-17 |
| 4551722 | Apparatus and method for detecting obstacles in the path of a moving vehicle | Tadashi Tsuda, Seiichiro Hiramatsu, Tsuyoshi Maeno | 1985-11-05 |
| 4490716 | Ultrasonic distance detector | Tadashi Tsuda, Seiichirou Hiramatsu, Tsuyoshi Maeno | 1984-12-25 |
| 4482889 | Device for detecting failure of ultrasonic apparatus | Tadashi Tsuda, Seiichiro Hiramatsu, Tsuyoshi Maeno | 1984-11-13 |