JOLs (Japanese Operating Lease) and JOLCOs (Japanese Operating Lease with Call Option) can be identified as follows:
1. Aircraft - Detail search
Apply the filters Manager - Company Types = "Operating Lessor" and "Operating Sub Lessor", together with Owner - Countries = "Japan" and Owner - Company Types = "Special Purpose Company".
2. Deals - Aircraft in Deals (where the deal details are known)
Apply the filters Deal Dates & Identification - Deal Structure = "Tax Lease" and Equity Provider - Country = "Japan".
Also see What are JOLCOs and JOLs?