Yūgen gaisha

A yūgen gaisha or yūgen kaisha (有限会社 ("limited company," abbreviated in English as Y.K. or Co., Ltd.^?)) is a form of business organization in Japan.

Yūgen gaisha are based on the German GmbH and were implemented in Japan in the Limited Company Act (有限会社法) of 1940. Companies Act, implemented on May 1, 2006, replaced the yūgen gaisha with a new form of company called gōdō gaisha, based upon the American limited liability company. Following the implementation, no new YKs were allowed in Japan, but pre-existing YKs were allowed to continue their operations as kabushiki gaisha under special rules.

Whether the term is pronounced as yūgen gaisha or yūgen kaisha is up to the local dialect or the company's preference when it is part of the company's name. While it is pronounced yūgen gaisha in standard Japanese, the alphabetic abbreviation is always Y.K. by standard.

As of 2005, a Y.K. can have up to 50 investors, called members (社員, shain^?). The members were required to provide at least ¥3 million in capital contributions, with each investment unit (持分, mochibun^?) valued at no less than ¥50,000. The minimum capital amount was much more permissive than the ¥10 million minimum for a kabushiki gaisha. A Y.K. was also not required to issue certificates for investment units, whereas stock certificates were required for a K.K.

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