You may also wish to search for items by Takegami.
Only one matching reference was found.
Takegami, Y.; Suzuki, T.; Shirai, T., The insertion reaction of icoprene into metal-ethyl bonds in various transition-metal salt-ethylaluminum compoud system, Bull. Chem. Soc. Japan, 1970, 43, 1478-84. [all data]