Nippon Institute for Biological Science (NIBS) was founded as an Incorporated Association
Nisseiken Co., Ltd. (NISSEIKEN) was established in Tachikawa, Tokyo.
NISSEIKEN has been formed from the profit earning department of NIBS.
NISSEIKEN's Kobuchisawa Branch (Laboratory for animal and feed production) was launched in Kobuchisawa, Yamanashi.
NISSEIKEN's Ome Branch was launched in Ome, Tokyo to transfer and expanded the department for manufacturing of poultry vaccines.
Started safety evaluation tests on a contract basis together with providing laboratory animals and feeds.
Transferred and integrated NISSEIKEN's head office in Ome.
Started outsourcing of manufacturing NISSEIKEN's veterinary medicinal products to NIBS.
Transferred to NISSEIKEN were Manufacturing, Quality Control and Laboratory Animal Department of NIBS.
Work for bottling vaccine
Ome Branch in 1970's