| 1946-03 |
北洋皮革工業(株)（資本金19万円）を山形市長谷堂に設立タンニン鞣を主とする本革製造を開始 |
| 1946-03-28 |
Hokuyo Leather Industries Co., Ltd. (capital of 190 thousand yen) was established at Hasedo, Yamagata City. Began manufacturing genuine leather primarily by tanning using tannins. |
| 1961-06 |
両羽協和(株)（現両銀不動産(株)）に全株譲渡 |
| 1961-06 |
Handed over all stocks to Ryou Kyowa Co., Ltd. (presently Ryogin Fudosan Co., Ltd.) |
| 1968-07 |
ミドリ安全工業(株)と業務提携、労働災害防止安全靴用甲革の大量生産開始 |
| 1968-07 |
Formed business alliance with Midori Anzen Industries Co., Ltd. Began mass production of upper leather for safety shoes for preventing workplace injuries. |
| 1968-11 |
ミドリ安全工業(株)が全体を引き継ぎ、北洋化成工業(株)に商号変更 |
| 1968-11 |
Midori Anzen Industries Co., Ltd. took over the entire operation. Changed trade name to Hokuyo Kasei Industries Co., Ltd. |
| 1973-04 |
ブラジル、アトランティカ社への資本参加と技術者派遣開始 |
| 1973-04 |
Provided capital and began dispatching engineers to Atlantica, Brazil. |
| 1980-07 |
北洋化成工業(株)をホクヨー(株)に商号変更 |
| 1980-07 |
Changed trade name from Hokuyo Kasei Industries Co., Ltd. to Hokuyo Co., Ltd. |
| 1996-11 |
ミドリ安全(株)がミドリ安全工業(株)を合併 |
| 1996-11 |
Midori Anzen Co., Ltd. amalgamated Midori Anzen Industries Co., Ltd. |
| 2000-08 |
広州緑北洋皮革制品有限公司設立 |
| 2000-08 |
Established Guangzhou Midori Hokuyo Leather Products Co., Ltd. |
| 2002-06 |
MIDORI AUTO LEATHER NORTH AMERICA,INC. 設立 |
| 2002-06 |
Established Midori Auto Leather North America, Inc. |
| 2003-04 |
嘉興緑北洋皮革有限公司設立 |
| 2003-04 |
Established Jiaxing Midori Hokuyo Leather Co., Ltd. |
| 2005-10 |
MIDORI AUTO LEATHER MEXICANA S.A. DE C.V. 設立 |
| 2005-10 |
Established Midori Auto Leather Mexicana S.A. de C.V. |
| 2007-06 |
ミドリホクヨー(株)へ社名変更 |
| 2007-06 |
Changed company name to Midori Hokuyo Co., Ltd. |
| 2015-11 |
ミドリオートレザー(株)へ社名変更 |
| 2015-11 |
Changed company name to Midori Auto Leather Co., Ltd. |
| 2016-12 |
MIDORI AUTO LEATHER GERMANY GMBH設立 |
| 2016-12 |
Established Midori Auto Leather Germany GmbH |
| 2020-10 |
MIDORI AUTO LEATHER GERMANY GMBHをMIDORI AUTO LEATHER EUROPE GMBHへ社名変更 |
| 2020-10 |
Company name changed from MIDORI AUTO LEATHER GERMANY GMBH to MIDORI AUTO LEATHER EUROPE GMBH |
