He worked for twenty five years as analyst and manager for Hewlett Packard Company’s Inkjet Business Unit and the Calculator and Personal Computer divisions. Prior to working for Hewlett Packard he was the Budget Officer for the Siuslaw National Forest. Ishikawa also taught accounting and operations management at Oregon State University. First introduced to the Andean culture in 1985 after his wife, Sally trekked the Andes with Nilda Callañaupa, his first flight across the Andes and into Cusco was 2005.