Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5315220 | Memory method of door opening and shutting stroke value in automatic door | Tamotsu Tanaka, Yukio Yoshida | 1994-05-24 |
| 4991347 | Opening/closing mechanism for the use in circular-arc shaped sliding doors | Kenzo Ono, Yuichi Noguchi | 1991-02-12 |
| 4959598 | Method and apparatus for controlling torque of a door opening and closing motor for an automatic door | Yukio Yoshida, Shigenobu Murai | 1990-09-25 |
| 4918443 | Method for determining a rotational angle of a rotary body | Yukio Yoshida, Shigenobu Murai | 1990-04-17 |
| 4775823 | Method for controlling opening/closing operation of automatic door in its accidental condition | Yukio Yoshida, Kenzo Ono, Kiyotada Nishikawa, Toshio Oura | 1988-10-04 |
| 4742245 | Method for controlling automatic door in turning-on time of its power supply | Yukio Yoshida, Kenzo Ono, Kiyotada Nishikawa, Toshio Oura | 1988-05-03 |