Injection molding method and injection molding device

An injection molding method, comprising:

• putting a mold into a mold-closing state in which the mold is closed under predetermined pressure;
• and
• holding the mold in a micro mold-open state in which the mold is open by a predetermined amount from the mold-closing state mold-closed under predetermined pressure;
• the injection molding method further comprising:
• holding the mold in the micro mold-open state via the mold-closing state, injecting a molding material into the mold in the micro mold-open state, and molding a molded product by closing the mold under the predetermined pressure;
• or
• putting the mold in the mold-closed state from a mold-open state, injecting the molding material into the mold in the mold-closed state, and molding a molded product by holding the mold in the micro-open state subsequently, wherein
• a stop position of the mold in the micro mold-open state is changed in accordance with a change of a mold-closing position in the mold-closing state when the mold-closing position of the mold in the mold-closing state is changed.