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.