Classification

FI and F-term lists( External link )

For browsing FI and F-term list. FI [File Index] and F-term [File forming term] are Japanese patent classification systems consisting of approx. 190,000 and 330,000 entries respectively, which enable the efficient search of patent documents. It is also noted that FI is based on IPC [International Patent Classification]. For more detailed information on FI and F-term (PDF:7,383KB).

IPC-FI-CPC scheme parallel viewer

For browsing IPC, FI and CPC in parallel. In this viewer, you can find the relevant entries among IPC, FI and CPC.

Bulk data

FI revision information

For obtaining information regarding FI revisions. FI scheme is revised once a year.

F-term revision information

For obtaining information regarding F-term revisions. F-term scheme is revised once a year.

List of all theme information(Excel:244KB)

For obtaining the list of all theme information. The explanation of items in the list is here(PDF:191KB). JPO has maintained Japanese patent documents by uniquely dividing them into technical fields. Each technical field is called “Theme”.

[Last updated 5 April 2024]

Contact

<IPC, FI>

Patent Classification Policy Planning Section

Administrative Affairs Division

Japan Patent Office

Fax:+81-3-3580-8122

E-mail：PA0L10@jpo.go.jp

<F-term, Theme>

Search Information Policy Planning Section

Administrative Affairs Division

Japan Patent Office