Company ProfileARCHITECTURAL

Metals augment the creativity of architecture.
The very first metal that humans worked was bronze, which is easy to handle.
This was followed by strong iron, which was spread throughout the world by horseback tribes.
The discovery of metals was a breakthrough in the history of humankind.
Exquisitely decorated objects have been passed on to the present day, while modern processed
metals are now a ubiquitous part of daily life; both express the artistic styles of their respective eras.
Sanwa Tajima has made outstanding contributions to architecture by using various metal materials andprocessing techniques. In our modern designs, we produce a variety of metal products such as curtain walls,
entrance fittings, interior and exterior decorations and environmental designs.

Minatomachi River Place(Osaka)／Exterior Panel : Titanium, textured finish

Stainless steel
Aluminum, Cast aluminum
Bronze, Cast bronze, Brass, Copper
Titanium
Steel2Custom-made products● Curtain Wall
● Metal fronts and screen● Metal interior and exterior decorations● Ornamental metals etc.

METALS

Jimbo-cho mitsui Bldg.(Tokyo) Canopy : Aluminum painted finish / Entrance : Stainless steel mirror finish

Nissan Global Headquarters Gallery (Yokohama) Interior panel : Aluminum anodized, dyed and painted finish

Standard products

Artworks● Stainless steel front● Slide system● Revolving door series● Circle door
● Balanced door
● Slim framed tempered glass door
● Soundproof door
● Radiation shielding door etc.

● monument● Relief● Clock tower● Sign etc.

3Sanwa Tajima’s technologies allow unlimited creativity
Company ProfileCompany Name :Sanwa Tajima CorporationPresident and representative director : Toshihiro Shinomiya
Establishment :June, 1918

Capital :￥ 100,000,000

History
1918 Under leaderships of Junzo Tajima, Founder and first president,
manufacture of the first architectural metalworks and metal art
works in Japan began.
1938 Reorganized as a joint-stock company.
1954 Osaka branch Office was established.
1957 Nagoya branch Office was established.
1961 Moroyama Factory opened at Moroyamamachi, Saitama.

Ceiling & Interior Metals — 14

1965 Nagoya Factory opened at Inuyama city, Aichi.
1979 Main factory moved to Moroyama Factory and designatedas Saitama Factory.
1999 Head Office moved to Ikebukuro, Toshima-ku,Tokyo.
2006 The name of comany was changed to Sanwa Tajima corporation.
2007 Became a group company of Sanwa Holdings Corporation when
Sanwa Shutter Corporation was reorganized to become a holding
company.

Group company
Sanwa Holdings Corporation

Okinawa Sanwa Shutter Corporation

Sanwa Shutter Corporation

Venix Co., Ltd.

Showa Front Co., Ltd.

Sanwa Exterior Niigata Plant Co., Ltd.

Showa Kensan Co., Ltd.

Metalwork Kansai Co., Ltd.

Yoshida Seisakusho Co., Ltd.

Hayashi Kogyo Co., Ltd.

Tajima Metalwork Co., Ltd.

Sanwa System Wall Co., Ltd.

Sanwa Mitaka K.K.

Sanwa Eletronics Engineering Co., Ltd.

Suzuki Shutter Corporation

Living 110.com Co., Ltd.

〈Overseas〉

Overhead Door Corporation〈U.S.A.〉
Novoferm Group〈Europe〉

Shanghai Baosteel-Sanwa Door Co., Ltd.〈China〉
Novoferm (Shanghai) Co., Ltd.〈China〉
Sanwa Shutter (HK) Ltd.〈China〉

An-Ho Metal Industrial Co., Ltd.〈Taiwan〉

Vina-Sanwa Company Liability Ltd.〈Vietnam〉
Pt. Sanwamas Metal Indutry〈Indonesia〉
Dongbang Novoferm Inc.〈Korea〉
Sun Metal Co., Ltd.〈Thailand〉

4

Grillwork & Railing — 16

Curtain Wall
The specially-engineered, functional beauty of our custom curtain walls
nearly leads the casual observer to forget that these high-precision
products are designed to withstand the most severe wind, rain, snow
and the most extreme temperature fluctuations.
Whether of stainless steel, bronze or other superior metal, these systems
are striking examples of intelligent architectural space.

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6

GOLD
Since ancient times, gold has been widely used for coins, accessories and ornaments.
It oﬀers excellent corrosion resistance and ductility: it can be beaten into foil a mere 0.0001-mm
thick, and just a single gram is suﬃcient to form a three-kilometer wire.Gold is considered themost valuable interior and exterior decoration material for architecture as an alloy, casting, inlay,or gold foil. In recent years, pure gold is also frequently used for plating.

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1 - Showa-kan Peace Museum (Tokyo) Titanium, alumina blast finish
2 - Tasaki & Co., Ltd. Ginza Flagship store (Tokyo)
Stainless steel, painted, mirror and vibration finish
3 - Yoyogi seminar prepschool Tower (Tokyo) Stainless steel, hairline finish
4 - Nakanoshima Mitsui Bldg.(Osaka) Stainless steel, hairline finish

47Entrance & Screen
To both tenants and passers by the image of a building, sometimes
the image of an enterprise, is projected most clearly and immediatelyby the quality and the distinction of its entrance.
Sanwa Tajima’s expertise in all facets of entrances and storefronts,
including framing, revolving doors, canopies, grilles and others,
allows you to entrust this most important space to a single source
accustomed to producing metals of unparalleled excellence.

114

COPPER
Copper is a soft reddish metal with great ductility. Very rarely, it is found in thecrystalline state as natural copper, but it usually exists as a compound such ascopper pyrites and azurite. Verdigris, which is formed by the reaction withmoisture in the air and carbon dioxide gas, has been used as a pigment sinceancient times; indeed, it was used as make-up by beautiful women in olden times.

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1 - Mitsukoshi Ginza Department Store Annex (Tokyo) Entrance & screen: Color stainless steel, hairline finish
2 - Sapporo Odori nishi 4 Bldg. Ishiya shop (Sapporo) Entrance : Color stainless steel, hairline finish
3 - Nakanoshima Mitsui Bldg. (Osaka) Entrance & screen: Stainless steel, mirror finish
4 - TBS Biz Tower (Tokyo) Entrance & screen: Stainless steel, hairline finish

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IRON
Iron is seldom found as an element on its own except in meteorites; it is usually present as a compoundsuch as magnetite and hematite. When it is red hot, it becomes soft, and when white hot, it melts. Iron
used in practical applications contains a little carbon, and the amount of carbon confers a range ofproperties, ranging from those of cast iron to those of steel. Iron is often used for supporting structuresand connecting materials because of its strength and heat resistance.

3
1 - Jimbo-cho Mitsui Bldg. (Tokyo) Canopy: Aluminum, painted finish
2 - Ishikawa Pref. Music Hall (Kanazawa)
Entrance & Columun Cover: Bronze, surfurized finish
3 - AT Group Headquarters Bldg.(Nagoya)
Entrance & screen: Stainless Steel, painted & hairline finish
4 - Izumu Headquarters Bldg.(Kobe) Entrance : Stainless Steel, hairline finish
5 - The Penninsula Tokyo (Tokyo)
Canopy : Cast bronze, surfurized finish / Canopy Ceiling: Brass, surfurized finish

4517

ST SLIDE SYSTEM

1 - Sumitomo Fudosan Akihabara Bldg.(Tokyo)
Large size slide door ( 2 roller type, DH:6,000 ) : Stainless steel, hairline finish
2 - UDX Bldg.(Tokyo)
Large size slide door ( 1 roller type, DH:4,750 ) : Stainless steel, hairline finish

3 - Dokkyo University Student Center (Soka,Saitama)
Large size slide door ( 2 roller type, DH:9,740 ): Stainless steel, vibration finish
4 - Nishi Gotanda 2-chome project (Tokyo)
Large size slide door ( 2 roller type, DH:2,660 ) : Stainless steel, vibration finish

Ceiling & Interior Metals
From fashionable hotels to commercial buildings, from national andlocal governmental offices to large sports and cultural complexes,
Sanwa Tajima uses the diverse properties of metals, both technicaland artistic, to create entrances, lobbies, halls, and ceilings
appropriate to the design concept of each interior space.

120

STAINLESS STEEL
Research and development on stainless steel was prompted by the need for a heat insulating
material for airplanes in many nations just before the First World War. The 18/8 stainless steel
was an alloy invented in Germany, containing 18% chromium and 8% nickel with an iron base.
It has excellent resistance to air, water, acids and chemicals. The beautiful ﬁnish of architectures
made using stainless steel will last almost forever.

2
1 - Ishikawa Pref. Music Hall (Kanazawa)
Large Size Swing & Slide door: Stainless steel, starlight finish
2 - Ishikawa Pref. Music Hall〈Japanese music〉(Kanazawa)
Column cover : Bronze sulfurized finish
3 - Ishikawa Pref. Music Hall〈Japanese music〉(Kanazawa)
Right door: Cast aluminum, gold leaf foiled finish
Left door: Brass etched, color painted finish
4 - Shin Marunouchi Bldg.(Tokyo)
Column Cover: Cast aluminum, anodized finish
5 - Muza Kawasaki Symphony Hall (Kawasaki)
Column Cover: Cast aluminum, painted finish

43521

11222

1 - Fukuoka Bar Association (Fukuoka)
Wall panel: Stainless steel, special vibration finish
2 - Round Terras Fushimi (Nagoya)Wall panel: Stainless steel, cross hairline45 finish
3 - Meiji Yasuda Life Insurance Co. Head Office Bldg. (Tokyo)
Ceiling: Aluminum, painted finish
4 - Nissan Global Headquarters gallery (Yokohama)
Louver & Wall panel: Aluminum anodized, dyed
and painted finish
5 - Tokyo Midtown Hibiya (Tokyo)
Wall panel: Steel, color film finish

3523

Grillwork & Railing
Intricate grillwork and custom railing systems both require
an attractive metal product, perfectly executed. These metalworks
demonstrate a depth and breadth of experience rarely seen
in today’s architectural metals and demonstrate once again thatthe 100 year heritage of traditional craftsmanship is not forgotten
at Sanwa Tajima.

124

ALUMINUM
Aluminum exists widely in nature, accounting for approximately 7.5% of the earth's crust.
It was ﬁrst used only in the late 19th century, and so is quite a new material compared withother metals. Aluminum alloy is light, soft and easy to process, and so it is used for wrought
products as well as for casting because of its low melting point. It is used as frequently as
stainless steel as both an interior and exterior facing material of architectures.

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1 - Tsunamachi Mitsui Club Bldg. (Tokyo)
Gate & Fence: Wrought Iron, painted finish
2 - Mitsukoshi Department Main Store (Tokyo)
Handrail: Bronze / Cast bronze, surfurized finish & gold-plated finish
3 - Suken Shuppan kanto branch Bldg. (Tokyo)
Grille: Cast aluminum, painted finish
4 - Osaka Securities Exchange (Osaka)
Grille: Cast aluminum, painted finish
5 - The Roppongi Tokyo Club Residence (Tokyo)
Grille: Aluminum, painted finish
6 - Gakushuin University West gate (Tokyo)
Gate & name plate: Cast aluminum, painted finish

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Restoration
Revitalizing cultural heritage
Architectures are grandiose monuments that endure long beyond the time of their creation, reflecting thespirit of the people who lived at that time as well as contemporary needs. We think it is important to passon the essence of architecture created by history to future generations as our common heritage.
Sanwa Tajima, which has long experience and many achievements, restores historically valuable
architectures based on extensive investigations of various source materials including the measurement
and analysis of existing properties. With careful consideration of the materials and finishing state, as wellas our skills and know-how backed by long tradition, we will reinstate the structure's original condition.
By tracing the thoughts of people in the past and utilizing our supreme craftsmanship, we revive both thespirits of citizens and the techniques of craftsmen embodied in old architectures.

1 - Isetan Department Main Store (Tokyo) Grille : Cast broze/bronze, sulfurized finish
2 - Mitsui Main Bldg. (Tokyo) Night door : Cast broze/bronze, sulfurized finish
3 - Meiji Life Insulance Main Bldg. (Tokyo) Entrance screen refresh work : Cast broze/bronze, sulfurized finish
4 - Yokohama City Memorial Hall of Open Port (Yokohama) Ornament of Roof : Cast broze, art patina finish
5 - Otemachi Nomura Bldg. (Tokyo) Clock tower,clumn cover,ornamental metalwork : Cast aluminum, painted finish

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BRONZE
Red brass is a copper-zinc alloy containing 3% to 20% zinc. In Japan, it refers to the alloy containing 90% copper and 10%
zinc and is used for architecture often speciﬁed as bronze. It is a reddish yellow in color and has excellent ductility, strain
hardening and corrosion resistance. It creates a unique luxurious feel in ﬁttings and metal works. Bronze is the oldest metal
known to humans, and has been used for several thousand years. It is a copper-tin alloy containing 2% to 35% tin and is stillused today for statues and temple bells. The metal is easy to cast and oﬀers excellent corrosion resistance.

2453527

Ornamental Metal〈Temple & Shrine etc.〉

Religious architecture embodies the quintessence of the supreme skills
existing in each era. Metal has now become essential for the main
structure thanks to the progress in materials and construction methods.
Sanwa Tajima is now the leader in new religious architecture as materials
have shifted from wood to metal. Meticulous skills and craftsmanshipbacked by a long tradition are essential for creating metal work withtrue solemnity. We create splendid religious architecture withoutstanding quality and grandeur. Just as religious teachings remain inpeople's souls forever, our creativity will last eternally into the future.

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Artwork
With the advent of guidelines requiring a percentage of eachconstruction budget to be spent for natural and / or artisticenhancement, sculptures, monuments, reliefs, murals and otherornamental metalworks are gracing new developments inincreasing numbers. Whether of your own design or a distinctive
concept from our in-house Design Division, Sanwa Tajima artists,engineers, and craftsmen are at your disposal to fabricate andperfectly finish a custom metal artwork to meet the mostdiscriminating aesthetic criteria.

30BRASS
Adding a little zinc turns copper to golden brass, which is used for ornamental ﬁttings.
The formulation containing about 30% zinc has high ductility and malleability suitable forthin plates and wire, while that containing 40% zinc is mainly used as a building materialbecause of its hardness and strength. This metal, which has a wonderful luster, is often
used for entrances and interior decorations.

2

31 - Waterras (Tokyo) Monument: Cast aluminum, painted finish
2 - Ishii Dome (Tokushima) Solar and wind power generation’s Monument: Stainless steel, vibration finish & mirror finish
3 - Narita International Airport 1st Terminal (Narita,Chiba) Monument: Stainless steel, etching finish & sputtering coated finish
4 - Setouchi International Art Festival「OGIJIMA’S SOUL」(Takamatsu, Kagawa) Art roof: Stainless steel, painted finish431SANWA TAJIMA CORPORATION

https://www.tajima-st.co.jp/Head Office

2-77-5 Ikebukuro, Toshima-ku, Tokyo, 1710014, Japan

Branch Office

Nagoya, Osaka

Façade Promotion Dept.

3-28-6 Yoyogi, Shibuya-ku, Tokyo, 1510053, Japan

TEL: +81-3-5954-5880

TEL: +81-3-5539-8929

FAX: +81-3-5954-5869

FAX: +81-3-3377-5021

OVERHEAD DOOR CORPORATION

2501 South State Highway 121, suite 200, Lewisville, TX 75067, USA
TEL: +1-469-549-7110

NOVOFERM GROUP（Novoferm GmbH）
Isselburger Strasse 31 46459 Rees, Germany
TEL: +49-2850-910-624

SHANGHAI BAOSTEEL - SANWA DOOR CO.,LTD.
988 Yueluo Road, Baoshan, Shanghai, 200941 China
TEL: +86 21-5692-5550

NOVOFERM (SHANGHAI) CO.,LTD.

No. 118 Mingye Road, Shenshan Industrial Area, Songjiang,Shanghai, 201602 China
TEL: +86 21-5779-3335

SANWA SHUTTER (H.K.) LTD.

Room 1211-1213A, 12/F, Trade Square, 681 Cheung Sha Wan Road, Cheung Sha Wan,Kowloon, Hong Kong
TEL: +852-2833-6619

AN-HO METAL INDUSTRIAL CO., LTD.

7Fl., No. 27, Section 1, Chungshan North Road, Taipei, Taiwan, R.O.C.
TEL: +886-2-2521-0013

VINA-SANWA COMPANY LIABILITY LTD.

6th Floor, HEID Building, K3B, Alley 12, Lang Ha, Ba Dinh Dist, Ha Noi, Vietnam
TEL: +84 24-3772-8301

PT. SANWAMAS METAL INDUSTRY

Jl. Raya Bekasi Km. 27, Pondok Ungu Bekasi 17124, Jawa Barat - Indonesia
TEL: +62 21-888-0338

DONGBANG NOVOFERM INC.

15, Seoulsiripdae-ro, Dongdaemun-gu, Seoul, Republic of Korea
TEL: +82-2-2212-6442

SUN METAL CO.,LTD.

180-184 METRO Building 4F, Rajawongse Road, Bangkok 10100, Thailand
TEL: +66-2-222-5190

STA-002-C2023.07.00