As you can see in the illustration below, Company Ｉ, a large manufacturer of PC (personal computer) components, required five manufacturers of PCs in Japan not to use CPUs (electronic circuits that function as the central processing unit of a computer) which are manufactured by companies other than Company I. In order to make them use the CPU the Company I made, Company Ｉ promised these manufacturers that it would offer rebates and funds if they purchased more CPUs from Company I.
This act causes a substantial restraint of competition in the market for CPUs for PCs.

As a result of the investigation by the Fair Trade Commission, the act by the manufacturer of PC components was found to come under private monopolization. Accordingly, a recommendation to stop the act was issued against Company I (Note).

(Note) In January 2004, the recommendation system was abandoned.