The JTC1/SC34 Japan has a responsibility to make a Japanese position on all the issues to be discussed in ISO/IEC JTC1/SC34 regarding Document Description and Processing Languages and submit its contributions to JTC1/SC34. The major activities are:
The following members participate discussions in the JTC1/SC34 Japan:
| Position | Name | Company/Organization |
| Chair | Yushi Komachi | Panasonic Communications |
| Secretariat | Mitsukazu Uchiyama | Toshiba |
| Secretariat | Yasuhiro Okui | Nihon Unitech |
| Member | Toru Takahashi | Hitachi |
| Member | Jun Adachi | Oki Data |
| Member | Hiroshi Naitoh | Osaka Inst.Tech |
| Member | Satoshi Imago | Ricoh |
| Member | Toru Takasawa | Dainippon Screen |
| Member | Hirohito Inagaki | NTT |
| Member | Nobuo Saito | Toppan Printing |
| Member | Osamu Ogasawara | JAGAT |
| Member | Gen Nagamura | Next Solution |
| Member | Takashige Noguchi | Next Solution |
| Member | Akinori Okubo | Ricoh |
| Member | Makoto Murata | International University of Japan |
| Member | Motomu Naito | Synergy |
| Member | Mary Y. Nishikawa | ISS |
| Member | Norimitsu Kubono | TEPCO |
| Member | Hiroyuki Kato | NII |
| Member | Kazuhide Horisaka | METI |
| Member | Saori Narita | ITSCJ |
| Observer | Masayuki Yamanaka | JSA |