What are sony's net income?

Net operating income (must be a positive number, otherwise would be net operating loss) is the amount after expenses have been deducted out of sales, BUT before INTEREST and INCOME TAXES have been...

gross income less expenses

Net Income is equal to the income that a firm has after subtracting costs and expenses from the total revenue. It can refer to the total of all the flows involved or to only a subset of those flows.

if by annual income you mean sum of all type of incomes during the year then yup its the net income.

Yes