| 1941 | Founded by Harukichi Nakazawa, Counselor on the active list as a private concern |
|---|---|
| 1948 | Reorganized Yamani Seisakusho Ltd., after renaming |
| 1966 | Established Hickok Japan, Ltd., concluded T.A.L.A with Hickok U.S.A. |
| 1967 | Established Taiwan Yamani, Inc., in Taiwan |
| 1969 | Established Yamani Manufacturing Co., Inc., in Tokyo |
| 1974 | Constructed the headquarters building at Taito-ku, Tokyo |
| 1980 | Increased the capital to \90 million |
| 1983 | Launched out on a handbag business |
| 1984 | Move Yamani Manufacturing Co., Inc. to Honjo-shi, Saitama Established Yamani Metalworking Industries Co., Inc. Established Forum Co., Ltd. |
| 1986 | Launched out on a golf bag business |
| 1988 | Established Kronus, Inc. |
| 1989 | Established Honjo Second Physical Distribution Center Established Yamani Continental, Inc., in China |
| 1994 | Merged Hickok Japan Ltd., with Forum, Co., Ltd. |
| 1996 | Established Protex, Corp. |
| 1998 | Reorganized Yamani, Inc., as a wholesaler after consolidating Forum, Kronus and Protex Yamani Metalworking Industries merged with Yamani Manufacturing Established Y-2 Corporation |
| 2002 | Adopted SCM |
| 2003 | Merged Y-2 Corp. with Yamani Inc. |
| 2007 | Changed company name, Yamani Manufacturing Co., Inc. to Monoro Inc. |
| 2009 | Relocated Head Office |
