Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6640090 | Signal transmitter utilizing ask modulation wave | Takahide Kitahara, Mitsugi Ohtsuka, Fumio Asakura | 2003-10-28 |
| 6225889 | Method of producing rolling code and keyless entry apparatus using the same | Masahiro Goto | 2001-05-01 |
| 6218929 | Door entry control by wireless communication | Fumio Asakura, Hiroto Uesaka, Yuji Kato, Mitsugi Ohtsuka | 2001-04-17 |
| 5733047 | Enciphering system applicable to various keyless entry systems | Masahiro Goto | 1998-03-31 |