• Message from the President

  • Katsuhiko Hara, President of Seiwa Industrial Corporation
  • Our company has, since its founding, focused its attention on the potential of stainless steel, and has manufactured a variety of welded products using stainless materials.
    Now, the societal environment around us is changing at a bewildering pace, and the social responsibility and functionality required of our products is growing and becoming more complex every day. Our company has established welding technique as its core competency, and consistently striven to better our welding process. It is my hope that, through application and use of our many years of experience and the latest materials and manufacturing techniques, we can provide not simply welded goods but goods with a real, new added value.
    I desire for our company to be the kind of company that turns today's problems into tomorrow's possibilities, the kind of company whose growth and improvement is truly visible to all around.
    In the society in which we live, no one can live on their own. We are all affected by many people, and even unintentionally influence those around us. Our company will strive to treasure its bonds with all of you, make every effort to continue creating products that serve the good of society, and work to share the joy we have received.
    I hope we can look forward to your continued support and encouragement in the years to come.

    Katsuhiko Hara, President of Seiwa Industrial Corporation

  • Company Outline

  • Name

    Seiwa Industrial Corporation

    Business established

    April,1962

    Company founded

    December 15, 1965

    Head office and Main Plant

    3-105 Kitahonmachi, Itami, Hyogo 664-0836 Japan
    Phone:+81-72-782-0281

    Nara plant

    Showa Industrial Park, 1 Shigicho,
    Yamatokoriyama, Nara 639-1039 Japan
    Phone:+81-743-56-1062

    Fukuchiyama plant

    2758, Aza Osada Oono Shimo, Fukuchiyama, Kyoto 620-0851 Japan
    Phone:+81-773-20-1135

    Capitalization

    24,000,000yen

    Corporate officers

    Chairman : Seiichi Yamashita
    President : Katsuhiko Hara
    Managing director : Kazuo Kashiwamura
    Director : Mitsuo Hara
    Auditor : Yukari Yamashita

    Annual Sales

    4.4 billion yen (2019)

    Number of employees

    240

    Bank references

    Senshu Ikeda Bank, Mukonoso Branch / Mitsui Sumitomo Bank, Itami Branch / Risona Bank, Kawanishi Branch

    Primary businesses

    Manufacture of residential equipment
    (Electric water heaters, water heaters, commercial hot water tanks, etc.)

    Manufacture of industrial environment equipment
    (Environment testers and testing equipment for research facilities, medical stainless steel products,etc.)

    Manufacture of equipment for space travel
    (Battery cases, etc.)

  • Corporate History

  • 1962

    Stainless steel processing and commercial kitchen equipment Manufacturing business is established.

    1965

    Company is incorporated.

    1968

    Manufacturing of tanks for small stainless steel electric water heaters begins.
    Company enters the electric appliance market

    1971

    Production of mid-size enamel-lined tanks for electric water heaters begins(with development of inner-surface welding technology.)

    1974

    Japanese Defense Agency awards the company MIL certification for stainless steel spot welding. Nara Plant is opened.

    1977

    Company is registered as a manufacturer of electric heating appliances.

    1978

    Assembly of small water heaters begins.

    1983

    Sterilizing hand washer is marketed.

    1985

    Company is granted a practical-use patent for its sterilizing hand washer.
    Small stainless steel electric water heater is developed.
    Production of mid-size cylindrical stainless steel electric water heater begins.
    Inner-surface welding technique is refined.

    1990

    Company is granted a patent for its high-grade ferrite stainless steel cylinder manufacturing technique.

    1996

    Main Office plant No.2 begins operation.

    2000

    Main plant is awarded certification of registration with ISO14001.
    Production of a high-pressure electric water heater begins.

    2004

    Main Office and Nara plant is awarded certification of registration with ISO9001

    2005

    Production of parts for fuel cells begins.
    Nara Plant is awarded certification of registration with ISO 14001.

    2006

    Main Office plant No.2 expanded

    2007

    Fukuchiyama plant starts construction
    Patent received for structural welding of cylinders

    2008

    High-volume production of steam reformers for fuel cells begins
    Production of water heaters for aircraft begins

    2009

    Assembly of household heat pump-type water heaters begins

    2011

    Assembly of industrial heat pump-type water heaters begins

    2013

    Hot beer server commercialization.

    2014

    Production of fuel cell power generation module housings begins

    2015

    Fukuchiyama plant is awarded certification of registration with ISO 14001,ISO 9001

    2016

    High-volume production of HYDOROTYZER begins

    2019

    Production of "Broth Dispenser" begins.

  • The Driving Company for the regional future

  • The Driving Company for the regional future
  • The Driving Company for the regional future

  • Quality Policy / Environmental Policy

  • 品質・環境方針
  • Major Customers

  • Panasonic Corporation / Aisin Seiki Co.,Ltd. / TOTO AQUA TECHNO LTD. / Espec Corporation / LIXIL Corporation / YAMAMOTO VINITA CO.,LTD. / Nihon Itomic Co.,LTD. / Yamato Scientific Co.,Ltd. / SAKAE CORPORATION / Rinnai Corporation / Takara Standard Co.,Ltd. / PURPOSE CO.,LTD. / SHIHEN TECHNICAL Corporation / GASTAR Co.,Ltd. / SANDEN RETAIL SYSTEMS CORPORATION / MINATO MEDICAL SCIENCE CO., LTD. / MITSUBISHI ELECTRIC CORPORATION / GS-Yuasa Corporation etc. / DENSO CORPORATION

  • Office information

  • Head office and Main Plant

  • ■Location

    3-105 Kitahonmachi, Itami, Hyogo 664-0836 Japan

  • ■Access

    [By JR] Get off at "Itami" station, about 15 minutes on foot
    [By Hankyu train] Get off at "Hankyu Itami" station and walk for about 20 minutes

  • Nara plant

  • ■Location

    Showa Industrial Park, 1 Shigicho,
    Yamatokoriyama, Nara 639-1039 Japan

  • ■Access

    [By Car] Nearest IC from the Osaka area. About 20 minutes from "Horyuji IC." On the Nishi-Meihan Expressway.
    [By JR] Get off at Yamato Koizumi Station, about 10 minutes on foot
    [By Kintetsu Railway] Get off at "Tsutsui" station → Get off at Nara Kotsu bus "Imagokufu" bus stop, about 10 minutes on foot

  • Fukuchiyama plant

  • ■Location

    2758, Aza Osada Oono Shimo, Fukuchiyama, Kyoto 620-0851 Japan

  • ■Access

    [By car] About 5 minutes from "Fukuchiyama IC." On the Maizuru Wakasa Expressway
    [By JR] Get off at Fukuchiyama Station on the Fukuchiyama Line, and take a taxi for about 15 minutes