Kokoku (patent law)

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A kokoku or kokoku tokkyo koho is an examined and approved Japanese patent application, published for opposition, in contrast to the kokai , the published ("laid-open"), unexamined Japanese patent application. [1] The kokoku system of publishing for opposition was abolished in 1996. [2]

Japan Constitutional monarchy in East Asia

Japan is an island country in East Asia. Located in the Pacific Ocean, it lies off the eastern coast of the Asian continent and stretches from the Sea of Okhotsk in the north to the East China Sea and the Philippine Sea in the south.

A patent application is a request pending at a patent office for the grant of a patent for an invention described in the patent specification and a set of one or more claims stated in a formal document, including necessary official forms and related correspondence. It is the combination of the document and its processing within the administrative and legal framework of the patent office.

A kōkai (公開), short for kōkai tokkyo kōhō (公開特許公報), is a published, unexamined Japanese patent application, in contrast to the kokoku or tokkyo kōhō, the examined and approved Japanese patent application. Kōkai means "open to the public", or "laid-open". Kōkai are published eighteen months after the earliest priority date.

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References

  1. Kotler, Mindy L.; Hamilton, Gary W. (November 1995). "A guide to Japan's patent system". p. 19. CiteSeerX   10.1.1.124.6834 Lock-green.svg.
  2. Thomson Reuters, The Japanese patenting system.