①The amount of an employees' disability pension is an amount calculated pursuant to the provisions of Article 43, paragraph (1). If the number of months in the insured period that constitutes the basis for calculating the amount of the employees' disability pension in such a case is under 300, it is regarded as 300.

②Notwithstanding the provisions of the preceding paragraph, the amount of employees' disability pension to be paid to a person who has a disability of a degree of severity that is classified as Grade 1 of the disability grades is an amount equal to 125/100 of the amount provided for in that paragraph.

③Notwithstanding the provisions of the preceding two paragraphs, if a disability constituting the grounds for benefits under an employees' disability pension is not one for which a basic disability pension under the National Pension Act may be received, and the amount of the employees' disability pension is less than the amount arrived at when the amount of a basic disability pension provided for in Article 33, paragraph (1) of the National Pension Act is multiplied by three-quarters (3/4) (this amount is rounded to the nearest hundred, with amounts less than 50 yen being rounded down, and amounts between 50 yen and 99 yen being rounded up), the relevant amount is the amount provided for in these paragraphs.

④Notwithstanding the provisions of paragraphs (1) and (2), if the amount of an employees' disability pension under the provisions of Article 48, paragraph (1) is lower than the amount of the employees' disability pension that has ceased to exist pursuant to the provisions of paragraph (2) of that Article, the amount of the employees' disability pension is an amount equal to the amount of the prior employees' disability pension.