Lead-Free Program


Report of our Lead-Free Promotion

We have been demonstrating development and manufacture of products gentle to the earth as part of our environmental preservation activities.Here, we would like to report about the advancement of the situation of the lead-free corresponding products.

We had traditionally applied solder-plating method for the surface treatment of terminal related parts and products. We have elaborated to improve products with changing the plating method in which lead is replaced by tin, i.e. lead is not contained. We have now found this new method we have employed is also excellent in economical efficiency.

However, there was a problem called "whisker" which created a peculiar phenomenon for tin-plating. The plating process was reexamined and the problem has been cleared, which enabled the process to the mass-production.


Lead-free Procedure

Manufacturing all the products lead-free have been accomplished at the end of 2004.