SI

Sunao Iwaki

HI Hitachi: 1 patents #17,742 of 28,497Top 65%
Overall (All Time): #854,056 of 4,157,543Top 25%
6
Patents All Time

Issued Patents All Time

Showing 1–6 of 6 patents

Patent #TitleCo-InventorsDate
9125609 Portable terminal having function of measuring mental fatigue, method for measuring same and server computer Nobuyoshi Harada 2015-09-08
8808196 Measuring device and measuring method for threshold of flicker Nobuyoshi Harada 2014-08-19
8579441 Measurement device and measurement method for flickering perception threshold Nobuyoshi Harada, Kouichi Sutani 2013-11-12
8485826 Portable terminal device having function of measuring mental fatigue and its measuring method Nobuyoshi Harada 2013-07-16
7891814 Mental fatigue detecting method and device Nobuyoshi Harada 2011-02-22
5522041 Data processor and data transfer method Tatsuya Murakami, Eiichi Hadano, Kazuyuki Kodama, Masaaki Fujinawa 1996-05-28