Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5537849 | Continuous dry drawing method and apparatus therefor | Heijiro Kawakami, Kozo Katsube, Yasuyuki Kanesada, Kohro Takatsuka | 1996-07-23 |
| 4253545 | Escape device for use in multistoried buildings | Makoto Yui, Hidemasa Okazaki | 1981-03-03 |
| 4209077 | Escape device for use in multistoried buildings | Makoto Yui, Hidemasa Okazaki | 1980-06-24 |