Company profile
About HISANAGA
Hisanaga Seisakusho’s crown mark got its start back in 1947. Four years later in 1952, we entered the metal fastener industry and began manufacturing spring snap fasteners. Later, we would bring many new products to market, including the American snap fastener for which we acquired a product development patent. In the years that followed, we went on to establish a leading presence in the metal snap fastener industry as a manufacturer with modern precision presses and plastic machining technologies. Today, the crown mark can be found on snap fasteners around the world. Recently, we have expanded operations into the precision device and healthcare fields to expand the business opportunities offered by our proprietary precision press plastic machining technologies.
Corporate Profile
Company name :
Hisanaga Seisakusho Co., Ltd.
Location:
598 Monoi, Yotsukaido City, Chiba 284-0012 Japan
Contact :
Tel. +81-43-422-2112
Incorporated :
March 1947
Visiting Us
CROWN SHOWROOM KURAMAE
1/F Ishikawa Bldg., 4-25-1, Kuramae, Taito-Ku, Tokyo 111-0051
Tel 03-5809-3216 / Fax 03-5809-3217
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.
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.
May 2001 :
Koyu Shimizu named president. Keiyo Shimizu named chairman.
March 2002 :
Acquired ISO14001 certification.
2006 :
Installs plating facilities in the factory.
May 2007 :
Keiyo Shimizu named representative director, chairman and president.
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.
January 2026 :
Our company’s chairman, Keiyo Shimizu, was honored with an awarded by the Governor of Chiba Prefecture for his long-standing contributions as chairman of the Yotsukaido Industrial Park Cooperative Association.
(As of January, 2026)
Contact
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