Novel Solar-Cell Power Supply System Using a Multiple-Input DC-DC Converter. - Kimiyoshi Kobayashi; Hirofumi Matsuo; Yutaka Sekine (IEEE Trans. Ind. Electron., 2005)

An excellent operating point tracker of the solar-cell power supply system. - Kimiyoshi Kobayashi; Hirofumi Matsuo; Yutaka Sekine (IEEE Trans. Ind. Electron., 2006)

IPPITSU: A one-stroke text entry method for touch panels using Braille system. - Keita Ushida; Yutaka Sekine; Sadao Hasegawa (GCCE, 2014)