1. (1) http://www.inscopix.com/
2. (4) M. Futagawa et al.: IEEE Trans. Electron Dev., Vol. 60, No. 8, pp. 2634-2639 (2013)
3. (5) H. Takehara et al.: IEEE BioCAS, Atlanta, USA (2015)
4. (6) J. Ohta et al.: “Implantable Microimaging Device for Observing Brain Activities of Rodents”, Proc. IEEE, Vol. 105, No. 1, pp. 158-166 (2017)
5. (7) J. Ohta : “Artificial Retina IC”, in Bio-Medical CMOS ICs (Eds. Hoi-Jun Yoo and Chris van Hoof), pp. 481-514, Springer-Verlag (2010)