Japanese invention patent examination is similar to China invention patent examination, and it also adopts the principle of first application. Early disclosure principle and request review principle. The patent application was published 18 months after the filing date (priority date). Request substantive examination within 3 years from the date of application (or priority date).
Japanese utility model patent examination is also similar to China's new patent examination, which adopts the registration system, and can obtain the patent right without substantive examination, and the patent certificate can be obtained if the registration is granted within 5-7 months.