Copyright © Philip M. Parker, INSEAD. Terms of Use.
| Year | Description |
| 1997 | Invention patented by Katsuro Tsukamoto and Susumu Ishikawa on February 6th, 1997. Abstract: The present invention provides a clad steel plate of a base material and a cover material attached to the base material. The base material has holes with rising rims and the rims pass through the covering material and expand over its surface to unite the base and covering materials. |
| Source: selected by the editor from original sources. | |
Copyright © Philip M. Parker, INSEAD. Terms of Use.
