| 1963-06 |
Founding |
| 1963-06 |
Started bento school lunch business under the name Higuchi Foods (now the Lunch Service Division) |
| 1963-06 |
June 1963 (Showa 38). |
| 1977-11 |
Established Higuchi Foods Inc. |
| 1978 |
Yoshikei Development Co., Ltd. entered into a franchise agreement and began a home delivery business of dinner ingredients and the like. |
| 1978-06 |
Signed a franchise agreement with Yoshikei Development Inc. and started dinner ingredient delivery business |
| 1978-06 |
Higuchi Foods Co., Ltd. was established. |
| 1978-11 |
Established Yoshikei Niigata Inc. (now the Delivery Division) |
| 1978-11-01 |
Establishment |
| 1978-11-01 |
Established Higurashi Foods Co., Ltd. on November 1, 1978 (Showa 53). |
| 1978-11-01 |
On November 1, 1978 (Showa 53), Yoshikei Niigata Co., Ltd. was established (now the Delivery Division). |
| 1987-10 |
Signed a franchise agreement with Sun-You All Japan and Fresh Lunch 39 |
| 1988-11 |
Commenced operation of employee cafeteria (now the Contract Food Service Division) |
| 1991-12 |
Opened Challenger Tsubame Sanjo store (now the Challenger Division) |
| 1991-12 |
Challenger Tsubame Sanjo store opened, and a food supermarket was launched (now the Challenger Division). |
| 1994-07 |
Opened Kaikuitei Teramachi Nihonkai and started ryokan business |
| 1998-04 |
Yoshikei Niigata Co., Ltd. was retained as the surviving company, absorbing six affiliated companies, and the corporate name was changed to Ocean System Co., Ltd. |
| 2000-04 |
Sunkee All Japan Co., Ltd. was made a 100% subsidiary. |
| 2001-12 |
Opened the first Gyomu Super store (now the Gyomu Super division). |
| 2001-12 |
Business Supermarket No.1 store opened, launching the Business Supermarket (now the Business Supermarket Division). |
| 2002-01 |
Signed an area license agreement between Kobe Bussan Co., Ltd. and Gyomu Super. |
| 2002-04 |
Received the Niigata Prefecture Economic Promotion Award. |
| 2005-06 |
Received the Minister of Agriculture, Forestry and Fisheries Award. |
| 2008-03 |
Listed shares on the JASDAQ Stock Exchange. |
| 2009-11 |
Opened the Hyakumei Chiba factory (now the Delicafoods division). |
| 2010-11 |
Made Foodie Co., Ltd. a 100% subsidiary. |
| 2013-08 |
Obtained HACCP certification from the Comprehensive Hygiene Management HACCP Certification Association. |
| 2014-06 |
Opened Kirakira Restaurant (now Kirakira Restaurant Yakiniku Kuroma). |
| 2017-10 |
Made Kawasaki Co., Ltd. a 100% subsidiary. |
| 2020-02 |
Obtained JFS compliance certification (Japan Food Safety Management Association). |
| 2022-04 |
Moved to the Standard market of the Tokyo Stock Exchange due to a review of market classifications. |
| 2023-04 |
Made Yoshikei Ryōmō Co., Ltd. a 100% subsidiary. |
| 2024-04 |
Absorbed Yoshikei Ryōmō Co., Ltd. into the company. |
| 2025-04 |
Absorbed Foodie Co., Ltd. into the company. |
| 2025-10 |
Signed a franchise agreement with Hi-Die Hidaka Co., Ltd. and Netsu-ryō Chinese Restaurant Hidaka-ya. |
