Issued Patents All Time
Showing 1–21 of 21 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4985816 | Vehicle headlamp | Tomoko Saito | 1991-01-15 |
| 4967319 | Headlight apparatus for automotive vehicle | — | 1990-10-30 |
| 4846555 | System for improving visibility of objects within visual field | Yuuichi Abe, Hiroshi Tsuda | 1989-07-11 |
| 4692798 | Apparatus and process for improving visibility of object within visual field | Yuichi Abe | 1987-09-08 |
| 4611199 | Alarm system and method for sensing a stand-by state in a driver drowsiness detection system | Haruhiko Iizuka, Takayuki Yanagishima, Hideo Obara | 1986-09-09 |
| 4604611 | System and method for detecting driver drowsiness including detection of steering rotation and reversal | Haruhiko Iizuka, Takayuki Yanagishima, Hideo Obara | 1986-08-05 |
| 4602247 | Method and system for detecting driver fatigue including differentiation of effects of rest periods | Haruhiko Iizuka, Takayuki Yanagishima, Hideo Obara | 1986-07-22 |
| 4594583 | Method and system for detection of driver drowsiness by an abrupt steering change following no steering movement | Haruhiko Iizuka, Takayuki Yanagishima, Hideo Obara | 1986-06-10 |
| 4586032 | Warning system for dozing at wheel | Takayuki Yanagishima, Noburu Fukasawa | 1986-04-29 |
| 4581607 | System and method for detecting driver drowsiness of a vehicle | Haruhiko Iizuka, Takayuki Yanagishima, Hideo Obara | 1986-04-08 |
| 4565997 | Warning device for a vehicle | Takayuki Yanagishima | 1986-01-21 |
| 4564833 | Dozing warning system for a vehicle | Takayuki Yanagishima | 1986-01-14 |
| 4555694 | Display device for a vehicle | Takayuki Yanagishima | 1985-11-26 |
| 4518954 | Dozing warning device for a vehicle | Takayuki Yanagishima | 1985-05-21 |
| 4509040 | Alarm system for preventing an automotive vehicle driver from dozing at the wheel | Masami Inoue, Takayuki Yanagishima | 1985-04-02 |
| 4502122 | Method and apparatus for measuring vehicle driver's fatigue to give an alarm | Takayuki Yanagishima | 1985-02-26 |
| 4496938 | Drowsiness alarm system for a vehicle | Takayuki Yanagishima, Masami Inoue | 1985-01-29 |
| 4463347 | Drowsiness alarm system for a vehicle | Takayuki Yanagishima | 1984-07-31 |
| 4450438 | Drowsiness alarm system for a vehicle | Takayuki Yanagishima, Noburu Fukasawa | 1984-05-22 |
| 4348663 | Safety assurance system for road vehicles | Takayuki Yanagishima | 1982-09-07 |
| 4342279 | Device for detecting steering angle and direction | Takayuki Yanagishima | 1982-08-03 |