| 1980年12月 |
Sugino Kosan Co., Ltd was founded to manage amusement centers. (Sennan City, Osaka: Capital three million yen) : Roller skating rink (with game arcades) opened in Izumiotsu City, Osaka. |
| 1980年12月 |
Sugino Kosan Co., Ltd was founded to manage amusement centers. (Sennan City, Osaka: Capital three million yen) : Roller skating rink (with game arcades) opened in Izumiotsu City, Osaka. (Izumiotsu Store's lease period ended in March 1997 and closed its doors.) |
| 1982年07月 |
Established bowling lanes (16 lanes) in Izumiotsu Store. (This is the beginning of operating bowling alley.) |
| 1988年10月 |
Removed roller skating rink in Izumiotsu Store and added bowling lanes (10 lanes). |
| 1990年12月 |
Rented previously used bowling alley in Sakai City, Osaka and opened indoor complex facility with amusement area. |
| 1990年12月 |
Rented previously used bowling alley in Sakai City, Osaka and opened indoor complex facility with amusement area. (Ishizu Store: Lease period ended in September 2001 and closed doors) |
| 1993年03月 |
Current President Masahiko Sugino established former ROUND ONE Corporation in Sakai City, Osaka by himself. (Capital : ten million yen) |
| 1993年09月 |
Relocated its head office to 3-267-16 Hamaderasuwamorichohigashi Nishi-ku, Sakai City. : Sugino Kosan Co., Ltd transferred its business to former ROUND ONE Corporation. |
| 1994年08月 |
Sugino Kosan Co., Ltd acquired all shares of former ROUND ONE Corporation (wholly owned subsidiary). |
| 1994年12月 |
Sugino Kosan Co., Ltd conducted a merger with former ROUND ONE Corporation and changed its trade name from Sugino Kosan Co., Ltd to ROUND ONE Corporation. : Started to make an equity participation to Fortune Corporation (Hakata-ku, Fukuoka City) and concluded a franchise agreement. The contract terminated in March 1998. |
| 1995年02月 |
Relocated its head office to Portus Center Building (4-45-1, Ebisujima-cho, Sakai-ku, Sakai City, Osaka). |
| 1997年06月 |
Concluded franchise agreement with BIGBOWL (Shiroishi-ku, Sapporo City) and its contract terminated in September 2001. |
| 1997年08月 |
Listed on the second section of the Osaka Securities Exchange. |
| 1998年12月 |
Listed on the second section of the Tokyo Stock Exchange. |
| 1999年09月 |
Appointed to list on the first section of the Osaka Securities Exchange and the Tokyo Stock Exchange. (Changes from the second section to the first section on the listed market ) |
| 1999年11月 |
Established Clubnets and Winners Nice Corp. (consolidated subsidiary) : Start building karaoke booth as a new feature of the complex facility. |
| 2001年03月 |
Merged with With ltd. which was the largest shareholder at that time. |
| 2002年03月 |
Liquidated Clubnets Corporation and sold Winners Nine Corp. |
| 2002年12月 |
Established Round One U.S.A. CORP. (subsidiary) (Planned to open stores in Hawaii, US.) : Introduced a new concept of "Leisure Stadium" where indoor sporting activities can be enjoyed with a time limit. |
| 2004年07月 |
Launched stadium type of stores with Spo-Cha floor. |
| 2006年09月 |
Liquidated Round One U.S.A. CORP. (subsidiary) (Canceled the plan to open stores in Hawaii, US.) |
| 2009年04月 |
Investment in Round One Entertainment Inc. (currently a consolidated subsidiary) |
| 2010年08月 |
Opened first overseas store, Puente Hills Store in California, US. |
| 2019年01月 |
Relocated its head office to NAMBA SkyO, 5-1-60 Namba, Chuo-ku, Osaka. |
| 2020年12月 |
Opened Russia's first store, Европейский Store in Moscow, Russia.(closed in April 2022) |
| 2021年04月 |
Launched online crane game Cre-Cha（the service finished in July 2023) |
| 2022年04月 |
Because the Tokyo Stock Exchange reviewed market segmentation, our segment changed from the first section of Tokyo Stock Exchange to Prime Market. |
| 2023年04月 |
Investment in Round One Japan Inc. (currently a consolidated subsidiary) for the transition to a holding company structure. |
| 2023年09月 |
Investment in Round One Delicious Inc. (a consolidated subsidiary; liquidated) : Transferred shares owned (50% of issued shares) of Kiddleton, Inc to GENDA Inc. and cancelled joint venture agreement. |
| 2024年04月 |
Transferred to a holding company structure. With absorption type split of operation business of indoor complex leisure facility, ROUND ONE Corporation succeeded the business. |
| 2024年06月 |
Investment in Round One Delicious Holdings, Inc. (currently a consolidated subsidiary) |
| 2025年02月 |
Transfer of the business of Round One Delicious Inc. to Round One Delicious USA, Inc. |
