Kokai

For the historical Korean province, see Kokai, Korea.

A kokai or kokai tokkyo koho is a published, unexamined Japanese patent application, in contrast to the kokoku or tokkyo koho, the examined and approved Japanese patent application.[1] Kokai means "open to the public", or "laid-open". Kokai are published eighteen months after the earliest priority date.

Tokukai is another shorthand for "kokai tokkyo koho". Tokkyo (patent) + kokai (open to the public) = tokukai.

See also

References

  1. ↑ Kotler, Mindy L.; Hamilton, Gary W. (November 1995). "A guide to Japan's patent system". p. 19. CiteSeerX 10.1.1.124.6834Freely accessible.


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