赤坂研究所

Akasaka Technical Center:Panoramic view

OVERVIEW

Head office
338 Enami, Naka-ku, Okayama-city, Okayama, 702-8004, Japan
Head
quarters
2-1-10 Kobashi-chou, Naka-ku, Okayama-city, Okayama, 703-8588, Japan Phone:81-86-272-7557 FAX:81-86-272-1145
Founded
June 15, 1898
Establish
ment
October 15,1956
Paid-up Capital
Yen 120,000,000
Employees
1,006(September,2025)
7,114(The number of employees of the whole group / October,2025)
Sales
¥56.6billion(September,2025)
Productions
Seals&gaskets for the automotive industry and other general industries purposes, closures&sealing materials of bottles&containers for the food and beverage industries, construction materials, and packaging materials.
Board of Directors
President & CEO Kenzo Uchiyama
赤坂研究所

Akasaka Technical Center:Panoramic view

Contact

Headquarters Phone:81-86-272-7557 FAX:81-86-272-1145

Access

About 12 minutes tram ride bound for "Higashi-yama" from Okayama station. Get off at "Kobashi" and walk for a minute in an easterly direction.

HISTORY

In 1898, our company was founded as the Uchiyama Cork-Stopper Factory and began production of cork stoppers. Since then, it has developed a great many cork products and has grown into a top manufacturer in the cork industry. During this period, synthetic rubber and synthetic resin production divisions were added and presently gaskets and sealing materials for cars and industrial machines are our mainstay.

1890s

1898(Meiji 31st year)

Established Cork-Stopper Factory in Sayo, Hyogo Prefecture and started manufacturing cork stoppers.

1930s

1930(Showa 5st year)

eveloped the first oil-proof composition cork sheet in Japan, and started manufacturing cork-disk and gaskets.

1933(Showa 8st year)

Built a plant and started manufacturing insulation cork board.

1940s

1940(Showa 15st year)

Authorized by the Imperial Armed Forces to manufacture insulation corkboard and composition corkboard.

1944(Showa 19st year)

Established Toyo Cork, Ltd. taking over the cork department of Toyo Manufacturing Corp. (Mazda Motor Corp.)

1950s

1950(Showa 25st year)

Developed the first cork-rubber composition in Japan.

1951(Showa 26st year)

Started manufacturing oil seals, spinning-rollers, industrial products of synthetic rubber compounds and gaskets of cork-rubber compositions.

1953(Showa 28st year)

Developed expanded polystyrene products and steam-baking system for insulation cork board, first in Japan.

1955(Showa 30st year)

Established Uchiyama Kogyo, Ltd (Uchiyama Corporation Ltd.).

1956(Showa 31st year)

Changed the name to Uchiyama Cork Co., Ltd.

1959(Showa 34st year)

Developed bearing seals formed by core and synthetic rubber compounds.

1960s

1962(Showa 37st year)

Changed the Uchiyama Kogyo, Ltd. to Uchiyama Manufacturing Corp.

1966(Showa 41st year)

Started manufacturing crowns (bottle caps) and urethane foam at the Chigasaki Plant.

1969(Showa 44st year)

Started exporting bearing seals.

1970s

1972(Showa 47st year)

Developed and started manufacturing “TAMIRON FUSUMA”.

1973(Showa 48st year)

Developed and started manufacturing the first crowns having polyethylene liners “POLYMODE” in Japan.

1975(Showa 50st year)

Established Uchiyama America, Inc. in NJ, U.S.A.

1977(Showa 52st year)

Started manufacturing synthetic rubber gaskets by a rubber-injection machine.

1979(Showa 54st year)

Established NE Seal Corp. for bearing seal production.

1980s

1981(Showa 56st year)

Established U-SUN Gasket Corp. and started manufacturing O-pak gaskets.

1982(Showa 57st year)

Established U-SUN Precision Corp. for mold and tool production.

1984(Showa 59st year)

Developed and started manufacturing Agglomerated Cork Stoppers.

1986(Showa 61st year)

Established branch offices in Tokyo, Osaka, Toyama, Nagoya, and Hiroshima.

1988(Showa 63st year)

Established Dong-A Kigong Co. Ltd. (DongAh Uchiyama Manufacturing Corp.) by joint management in the Public of Korea.

1990s

1992(Heissei 4st year)

Established UMC Akasaka Technical Center for R&D in Okayama Prefecture.

1995(Heissei 7st year)

Established a European office in Germany.

1996(Heissei 8st year)

Established Uchiyama Portugal in Portugal and started manufacturing.

1997(Heissei 9st year)

Transferred Uchiyama America, Inc. to North Carolina and started manufacturing gaskets. Changed the name of the European office to Uchiyama Europe GmbH.

2000s

2000(Heissei 12st year)

Established Uchiyama Vietnam and started manufacturing.

2002(Heissei 14st year)

Established Qindao DongAh Manufacturing Corp. (by joint management) in China.

2003(Heissei 15st year)

Established Uchiyama (Shanghai) International Corp. in China.

2004(Heissei 16st year)

Established Guangzhou Uchiyama Manufacturing Co. Ltd. in China and started manufacturing.

2008(Heissei 20st year)

Established Uchiyama (Thailand) Co., Ltd. in Bangkok, Thailand.

2010s

2012(Heissei 24st year)

Uchiyama America Inc. opened Detroit Office.

2013(Heissei 25st year)

Established Uchiyama (India) Private Ltd. in India.

2016(Heissei 28st year)

Established Uchiyama Sudamérica SRL in Paraguay.

2020s

2021(Reiwa 28st year)

Established Uchiyama Manufacturing De Yucatan,S.A.De C.V. in Mexico and scheduled to start production.