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Company Name Nihon Bronze Co.,Ltd.
Head Office 2-14-8 Higashi-Nippori, Arakawa-ku, Tokyo 116-0014, Japan
TEL:03-3802-3851
FAX:03-3806-7138
Representative Futoshi Sasaki, President and Representative Director
Established October 20, 1951
Capital 100 million yen
Shareholder NBC Holdings Co., Ltd. (100%)
Business Description Manufacture and sales of copper alloy ingots, continuous cast products (Vulcan Bronze), and machined components
Sales of cast products including sand mold casting, centrifugal casting, forged products
Implementation of quantitative analysis, tensile testing, and hardness testing for copper alloys
Executive Directors
Futoshi Sasaki President and Representative Director
Hideaki Kobayashi Senior Managing Director
Katsuya Sato Managing Director
Atsuyuki Susuda Director
Affiliated Organizations Japan Foundry Society, Inc.
JIS Drafting Committee for Copper and Copper Alloys
Tokyo Non-Ferrous Metal Industry Cooperative Association
Japan Federation of Non-Ferrous Metal Recycling Associations

Executives

  • President and
    Representative Director    Futoshi Sasaki

  • Senior Managing DirectorHideaki Kobayashi

  • Managing DirectorKatsuya Sato

  • DirectorAtsuyuki Susuda

Organization

History

  • October 1951

    Masuzawa Shoten Co., Ltd. was founded by Mitsuaki Masuzawa in 3080 Kamisuwa, Suwa City, Nagano Prefecture.

  • August 1953

    The head office was relocated to a newly constructed office at 1032 Koryu-cho, Suwa City, Nagano Prefecture

  • January 1957

    The Tokyo sales office was established in a newly constructed building at 2-34 Nippori, Arakawa-ku, Tokyo.

  • September 1959

    The head office was relocated to 2-9 Koamicho, Nihonbashi, Chuo-ku, Tokyo.

  • September 1960

    A copper alloy ingot casting plant was built at 1-3-30 Horinouchi, Okaya City, Nagano Prefecture.

  • November 1964

    The company name was changed from Masuzawa Shoten Co., Ltd. to Nihon Bronze Co., Ltd.

  • December 1967

    The head office was relocated to 1-3 Yoshicho, Chuo-ku, Tokyo.

  • October 1968

    A sales office and warehouse were constructed at 2-14-8 Higashi-Nippori, Arakawa-ku, Tokyo.

  • June 1969

    Authorized to display JIS (Japanese Industrial Standards) mark for bronze alloy ingots for casting.

  • June 1973

    A five-story administrative building was constructed at the Okaya Factory.

  • April 1975

    A continuous casting plant was constructed at the Okaya Factory.

  • March 1977

    The head office was relocated to its current location at 2-14-8 Higashi-Nippori, Arakawa-ku, Tokyo.

  • April 1990

    A production center was built at 2-11-17 Daiei-cho, Okaya City, Nagano Prefecture.

  • December 1999

    Certified to ISO 9001 international standard.

  • May 2000

    Built a precision-machined components warehouse.

  • March 2006

    Developed RoHS-compliant Rose Bronze (CAC408) compliant with EU reguations.

  • March 2016

    Constructed an advanced refining casting line and developed a casting conveyor system.

  • September 2018

    Constructed Distribution Center Buildings A and B.

  • April 2019

    Updated palletizing robot for ingot loading.

  • February 2025

    Established the Ueno Office at 3-28-7 Ueno, Taito-ku, Tokyo.
    Becomes a subsidiary of NBC Holdings Co., Ltd.

  • August 2025

    Opened an Osaka Sales Branch at 4-1-1 Doshomachi, Chuo-ku, Osaka-shi, Osaka

Chairmen and Presidents

Position Name Term of Office
Founder Representative
Director		 Mitsuaki Masuzawa October 1951 – January 1990 (President)
February 1990 – February 2000 (Chairman)
2nd Representative
Director		 Heijiro Masuzawa February 2000 – March 2002
3rd Representative
Director		 Noboru Ando April 2002 – January 2013 (President)
February 2013 – Present (Chairman)
February 2022 – Present (Honorary Chairman)
4th Representative
Director		 Soichi Masuzawa February 2013 – January 2020
5th Representative
Director		 Futoshi Sasaki February 2020 – Present

Access

Head Office

Address 2-14-8 Higashi-Nippori, Arakawa-ku, Tokyo 116-0014, Japan
Tel: 03-3802-3851
Fax: 03-3806-7138
Access 10-minute walk from Minowa Station (Tokyo Metro Hibiya Line)

Osaka Office

Address 2F, Takeda Midosuji Bldg., 4-1-1 Doshomachi, Chuo-ku, Osaka-shi, Osaka 541-0045, Japan
Tel: 06-7712-1219
FAX 03-3806-7138
Access 1-minute walk from Yodoyabashi Station (Osaka Metro Midosuji Line)

Ueno Office

Address 4th Floor, Ueno 3-chome Building 3-28-7 Ueno, Taito-ku, Tokyo 110-0005, Japan
Tel: 03-3802-3852
Fax: 03-5817-4626
Access 1-minute walk from the North Exit of Okachimachi Station (JR)
1-minute walk from Ueno-Hirokoji Station or Ueno-Okachimachi Station

Okaya Plant (ISO 9001 Certified)

Address 1-3-30 Horinouchi, Okaya-shi, Nagano 394-0024, Japan
Tel: 0266-23-4831
Fax: 0266-23-4830
Access Approx. 5 minutes by car or 25 minutes on foot from Okaya Station (Chuo Main Line)

Distribution Center (ISO 9001 Certified)

Address 2-11-17 Daiei-cho, Okaya-shi, Nagano 394-0025, Japan
Access 1-minute walk from our Okaya Plant