Kaisha, the Japanese pseudonym is written as: かいしゃ, which means company or business.

Japanese corporations (i.e., companies) are divided into the following types:

1. Co., Ltd. (かぶしきかいしゃ) Co., Ltd.

2 .Joint-stock company (ごうしかいしゃ) joint-stock company

3. Joint-stock company (ごうめいかいしゃ) joint-stock company (all investors are shareholders with unlimited liability)

4. Shoji-kaisha (しょうじ かいしゃ) Trading Co., Ltd.

5. Co., Ltd. (ゆうげんかいしゃ) Co., Ltd.