Issued Patents All Time
Showing 26–30 of 30 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4923206 | Trolley transfer unit for tunnel furnace | Keiji Yasuda | 1990-05-08 |
| 4913651 | Burner unit for firing furnace | Toyoshiro Miyajima | 1990-04-03 |
| 4897034 | Trucks for use in tunnel kilns | Keiji Yasuda | 1990-01-30 |
| 4856987 | Tunnel kiln for ceramic firing | Keiji Yasuda, Kazuo Nakasako | 1989-08-15 |
| 4786542 | Setters and firing of ceramic honeycomb structural bodies by using the same | Keiji Yasuda | 1988-11-22 |