Western Digital Technologies Health Insurance Association

Overview of an Insurer

An “insurer” of health insurance refers to the health insurance association operating the health insurance business.

Overview of an Insured Person

An “insured person” refers to the person employed by the employer enrolled in the health insurance society who pays insurance premiums. Anyone employed by the employer eligible for health insurance becomes a mandatory insured person of the health insurance society where the employer is enrolled, except part-time employees and others who are working reduced hours.
However, part-time employees and others who are working reduced hours also become "insured persons" if they meet any of the following conditions.

1. When the number of scheduled daily working hours, weekly working hours or monthly working days is three-quarters or more of that of full-time employees
2. If they meet all the following five conditions
   1. The short-time employee works at least 20 hours per week
   2. The short-time employee earns at least 88,000 yen a month
   3. The short-time employee is expected to be at the company for at least two months
   4. The short-time employee is not a student
   5. The short-time employee works at a company with at least 51 employees, or a company with 50 employees or less which has a health insurance agreement between labor and management