|Late 1960||Original grout-filled splice sleeve was invented by Dr.Alfred A. Yee. Splice sleeves were first used in precast concrete column-tree connections for 38 story Ala Moana Hotel, Honolulu, Hawaii.|
|1973||Splice Sleeves were introduced to Japan by Nisso Master Builders(NMB) and gained approval from Building Center of Japan (BCJ).|
|1975||First 8 story precast shearwall type housings permitted in Japan because of outstanding performance of NMB Splice-Sleeves.|
|1977||Splice Sleeve Japan, Ltd.(SSJL) was established to exclusively manufacture
and sell NMB Splice-Sleeves.
Recognition from International Conference of Building Officials (ICBO) No. 3029.
Approval from New Zealand Government.
|1981||NMBs started dominating primary market of 5-story precast concrete housing projects under Housing and Urban Development Board (HUD) of Japan.|
|1982||Approval from Japan Society of Civil Engineers (JSCE).|
|1987||NMB's first application to high-rise, 30 story residence tower, Shin Kawasaki|
|1988||Splice Sleeve North America, Inc.(SSNA) was established as a California corporation in Sacramento.|
|1989||NMBs were used at 37-story Ohkawabata high-rise residence ( moment-frame) in downtown Tokyo.|
|1991||NMBs were used at 30-story, 5000+ room MGM Grand Hotel in Las Vegas.|
|1994||SSNA office moved to Los Angeles.
Richter Scale (RS)8.2 Earthquake on Island of Guam, all projects using NMB's had no damage.
|1995||R.S 7.9 earthquake in Kobe, Japan, all projects(over 100 buildings) using NMB's had no damage, and saved the lives of many people. SSJL received commendation from the Senate of the State of Hawaii.|
|1998||SSNA moved to Ontario, California
Splice Sleeve (S) Pte Ltd. Singapore established.
|1999||NMBs were used in precast columns in 39-story Paramount tower, San Francisco|
|2001||SSNA received PCI Associate Member Award
NMB Splice-Sleeve recognized as Type 2 coupler by ICBO ER-5645 and NER-217.
|2002||NMB's used in precast columns in 56-story Shiodome H residential tower in Tokyo.|
|2005||SSNA moved to Irvine, California.|
|2007||NMB's used in high-strength precast concrete columns in 59-story Park City Musashi-Kosugi residential tower near Tokyo.|
|2011||SSNA moved to Livonia, Michigan.|