Akira Umezawa

A CMOS bandgap reference circuit with sub-1-V operation

H. Banba, H. Shiga, Akira Umezawa et al. · IEEE Journal of Solid-State Circuits · 1999 · 874 citations

Low-power Electronics, Electrical Engineering, Engineering +11

A 5-V-only operation 0.6- mu m flash EEPROM with row decoder scheme in triple-well structure

Akira Umezawa, S. Atsumi, M. Kuriyama et al. · IEEE Journal of Solid-State Circuits · 1992 · 147 citations

Non-volatile Memory, Electrical Engineering, Cell Size +15

Three-dimensional high-density culture of HepG2 cells in a 5-ml radial-flow bioreactor for construction of artificial liver

Tomokatsu Hongo, Mariko Kajikawa, Seiichi Ishida et al. · Journal of Bioscience and Bioengineering · 2005 · 53 citations

Tissue Engineering, Engineering, Bioengineering Model +12

A 16-Mb flash EEPROM with a new self-data-refresh scheme for a sector erase operation

S. Atsumi, M. Kuriyama, Akira Umezawa et al. · IEEE Journal of Solid-State Circuits · 1994 · 43 citations

Non-volatile Memory, Engineering, Emerging Memory Technology +17

Wordline voltage generating system for low-power low-voltage flash memories

Tôru Tanzawa, Akira Umezawa, M. Kuriyama et al. · IEEE Journal of Solid-State Circuits · 2001 · 27 citations

Low-power Electronics, Non-volatile Memory, Electrical Engineering +11