| Skart | 8 Dec. 2004 | [ J ] Lecture: "Nothing for Beginning", A.I.T., Ebisu, Tokyo |
| Keiichi Tanaka + | 4 Dec. 2004 - 30 Jan 2005 | Light Art: [ J ] Kushiro Art Museum, Hokkaido, Japan |
| Erina Kashihara | 6 - 18 Dec. 2004 | Jewelry Art for Body with Light: [ J ] "The Body Illuminant", Wacoal Ginza Art Space, Tokyo |
| Oshikane + Soeno + ... | 1 - 25 Dec. 2004 | Annual exhibition "Joyeux Noël", Gallery Kobo Chika, Tokyo |
| Japan-Macedonia Contemporary Art 2004 | 19 - 29 Dec. 2004 | [ J ] Excahnge exhibition, Yokohama |
| Yoshio Machida | Nov/Dec 2004 | [ J ] Sound Live, Tokyo / Nagoya / Kyoto |
| Takeo Kubota | 4 - 27 Nov. 2004 | Photographs "Reflex Time", Gallery Kobo Chika, Tokyo |
| Hiroshi Yoshimura + | 19 - 23 Oct. 2004 | A tribute to the memory of Hiroshi Yoshimura, Gallery Kobo Chika, Tokyo |
| [ J ] COLD_SCHOOL | 1 - 10 Oct. 2004 | MS004: "Art as Lecture", Toyoda Auditrium, Nagoya University, Japan |
| Riki Kato | 28 July - 7 Aug, 2004 | Installation "Light Box Work", gallery Chika, Tokyo |
| Keiichi Tanaka | 24 July - 5 Sept 2004 | Solo: Laser art, Kakegawa Ninomaru Museum of Art, Shizuoka, Japan |
| Keiichi Tanaka | 1 July - 17 Aug 2004 | Solo: Laser art, TEPCO Ginza gallery, Tokyo |
| Koshida + Yamamoto + Kubota | 7 - 24 July 2004 | Photographs "Still Time", gallery Chika, Tokyo |
| Kiyomi Sugawara | 1 - 25 June, 2004 | Solo: "a time of release", gallery inos, Tokyo |
| Keiko Sato + Akihiro Yonaiyama | 27 March - 4 April 2004 | [ J ] Performance "Sound+Colors", gallery Chika, Tokyo |
| ANIMANIA | 21 Jan. - 14 Feb. 2004 | [ J ] CHIKA 2004 VISION 1, gallery Chika, Tokyo |