Corporate Profile
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Corporate History
| March 1947 | Hisanaga Shimizu, the founder and former president establishes Hisanaga Seisakusho Limited at Minatoshinden, Ichikawa-city in Chiba. Begins manufacturing and selling snap fasteners under the registered CROWN mark trademark. |
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| April 1949 | Started manufacture of gold flutes and pink bells for exported toys. |
| March 1951 | Started manufacture of metal spring hooks. |
| March 1956 | Successfully developed and started mass-production of America hooks for export, and acquired patents for spring hooks and American hooks. |
| November 1956 | Received Tokyo MITI Bureau Award for business innovation. |
| September 1964 | Reorganized as Hisanaga Seisakusyo Co., Ltd., and introduced state-of-the-art presses and machine tools. |
| February 1969 | Built factory in Yotsukaido, Chiba, successfully developed various products and increased production of Crown brand products for export. |
| September 1973 | Successfully developed round spring for American hook. |
| February 1975 | Developed ring hook and started productuin of compaques. |
| December 1979 | Expanded Chiba factory, introduced new presses and completed primary streamlining. |
| April 1980 | Hisanaga Shimizu conferred the Yellow Medal of Honor successes in trade promotion. |
| August 1986 | Consolidated headquarter functions at Chiba factory. |
| February 1989 | Completed construction of second Chiba factory. |
| May 1991 | Keiyo Shimizu named president. Hisanaga Shimizu named chairman. |
| April 1992 | Started making medals for amusements. |
| July 1993 | Developed "Erix" antistatic band. |
| 1998 | Developed semiconductor chip test tool. |
| 1999 | Developed Compact Flash (CF) cardcases. |
| September 2000 | Acquired ISO9001 certification. |
| March 2002 | Acquired ISO14001 certification. |
| 2006 | Installs plating facilities in the factory. |
| 2010 | Successfully establishes a new mass production technology for non-cyan copper alloy plating utilizing a food additive. The non-cyan ECOW (Eco-White) and ECOB (Eco-Black) plating obtain the STANDARD 100 by OEKO TEX®. |
| August 2011 | Establishes a new factory in Kazo city, Saitama to develop and manufacture automatic press machines. |
| February 2015 | Opens “CROWN SHOWROOM Kuramae” in Taito-ward, Tokyo. |
| March 2023 | Yoko Tsurukawa named president. Keiyo Shimizu named chairman. |
(As of April 30, 2023)