about of companies had a reemployment system and had an employmentextension system in place about had both systems mhlw c a jilpt survey on human resource strategies shows that willingness to employ older workers is generally higher in the management office work and technical departments of firms than in the production and operating departments mitani only of surveyed companies implementing a continuous employment system in stated that they employed older workers having reached mandatory retirement age as fulltime regular workers most others offered them fixedterm jobs andor parttime jobs fujimoto furthermore in many cases employment contracts of older workers are changed even if they perform the same tasks and continue to work fulltime as a result the annual income of these older workers including corporate pension and public benefits as well as wages was commonly about to of their annual income at the mandatory retirement age