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Osaka Obayashi Building, registered headquarters of Obayashi Corp. in Chuo-ku, Osaka, Japan

Obayashi Corporation (株式会社大林組, Kabushiki-gaisha Ōbayashi Gumi^?) (TYO: 1802) is one of five major Japanese construction companies along with Shimizu Corporation, Takenaka Corporation, Kajima Corporation, and Taisei Corporation. It is one of the Nikkei 225 corporations. Headquarters are in Minato, Tokyo.

Established in 1892 in Osaka, Obayashi operates in Japan and other countries, especially Southeast Asia and Australia, as well as the United States and Europe. Major landmarks in Japan include the Kyoto Station Building and Tokyo Broadcasting System (TBS) Center in Tokyo, as well as the Tokyo Skytree.

In February 2012 it announced plans to build a space elevator by 2050.^[1]

Corporate timeline[link]

• 1892: Obayashi, a Building Construction and Civil Engineering Construction Contractor founded by Yoshigoro Obayashi in Osaka
• 1936: Obayashi Corporation (OC) established
• 1969: Surfrider Hotel, HI completed
• 1970: Princess Kaiulani Hotel, HI completed
• 1972: Obayashi America Corporation (OAC) established in Los Angeles
• 1975: Hotel Kyoto Inn San Francisco, CA completed
• 1978: James E. Roberts - Obayashi Corporation (RO) joins the Obayashi Group
• 1981: Obayashi Corporation San Francisco Office established (Civil Engineering Construction)
• 1982: Obayashi Corporation opens office in New York
• 1988: Toyota Manufacturing Facility, KY completed
• 1989: E.W. Howell Co., Inc. (EWH) joins the Obayashi Group
• 1991: NEC Roseville Semiconductor Plant Mega-Line, CA completed
• 1991: Delta Center/Utah Jazz Arena, UT completed
• 1993: OC America Construction Inc. (OCAC) established in Los Angeles
• 1994: OC Real Estate Management, LLC (OCREM) organized in Los Angeles
• 1997: Sumitomo Sitix of Phoenix, AZ completed
• 1997: Matsushita Semiconductor (MASCA), WA completed
• 1998: Komatsu Silicon America, OR completed
• 1998: San Bernardino (Arrowhead) Medical Center, CA completed
• 2001: Applied Materials (AMAT), CA completed
• 2002: Obayashi USA, LLC (OUSA) established in Los Angeles
• 2002: Obayashi Construction, Inc. (OCI) established in Los Angeles
• 2003: Cedars-Sinai Medical Center Central Plant, CA completed
• 2003: Interstate Distributors, CA completed
• 2005: John S. Clark Company, LLC (JSC) joins the Obayashi Group
• 2007: Webcor, LP joins the Obayashi Group

Notable Constructions[link]

• Mike O'Callaghan – Pat Tillman Memorial Bridge, also known as the Hoover Dam Bypass
• Koshien Stadium
• Kyoto Station
• TBS redevelopment
• Osaka Dome
• Namba Parks
• Osaka WTC Building
• Shinjuku Takashimaya Times Square
• Marunouchi Building
• Roppongi Hills Mori Tower
• Tokyo Skytree

References[link]

External links[link]

• Obayashi Corporation
• Obayashi United States Operations

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Wally Wallington is a retired construction worker from Lapeer County, Michigan who demonstrated a method for a person to construct a Stonehenge-like structure using only materials and techniques that do not rely on any modern technology. He has demonstrated this technique^[1] on the Canadian science television program Daily Planet,^[2][3] and is building a full-scale concrete replica of Stonehenge single-handedly.

His technique uses simple machines such as levers aided by counterweights and pivots. He has successfully singlehandedly "walked" a barn and multi-thousand pound concrete blocks using a beam lever and two pivots under the object and near the center of mass. These techniques might be comparable to those used by Edward Leedskalnin when he single-handedly constructed his massive Coral Castle in Florida.^[4]

References[link]

1. ^ Mike Wendland (2004-10-04). "Web Site Shows Old Skills Moving Mountain Of Rock". Knight Ridder/Tribune Business News. http://www.accessmylibrary.com/premium/0286/0286-6259563.html. 
2. ^ "Daily Planet clip". http://www.youtube.com/watch?v=pCvx5gSnfW4. 
3. ^ "same Daily Planet clip with moving pictures". http://sciencestage.com/v/951/building-stonehenge.html. 
4. ^ "The Mysterious Coral Castle". http://www.livescience.com/history/060328_coral_castle.html. 

External links[link]

• The Forgotten Technology, Wally Wallington's website dedicated to his techniques. Includes short videos.