Search gender: all male female ライクウ Japanese Names Variations. 1 names found. gender: all male female Name: raiku Katakana: ライクウ 0 Kanji: 来空 Meaning: 来Come. From now on. Until now. 空Sky. Atmosphere. Heaven. Big. Wide. Empty. No substance. Meaningless. Useless. In Buddhism, something without substance or essence. A thing related to aviation. You can save your favorite names with NAZUKE PON > About Japanese Names > Search Japanese Names By Kanji > ライクウ Japanese Names Variations.