SI

Seiichi Ishihara

CC Citizen Watch Co.: 2 patents #1 of 59Top 2%
DT Director-General Of Agency Of Industrial Science And Technology: 1 patents #6 of 64Top 10%
MI Ministry Of International Trade & Industry: 1 patents #3 of 62Top 5%
RJ Research Development Corporation Of Japan: 1 patents #14 of 52Top 30%
AT Agency Of Industrial Science And Technology: 1 patents #3 of 135Top 3%
Overall (1989): #16,239 of 140,708Top 15%
2
Patents 1989

Issued Patents 1989

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4868632 Nonvolatile semiconductor memory Yutaka Hayashi, Itsunari Hayabuchi, Tatsuo Tsuchiya 1989-09-19
4818867 Optical information processing device using optical shutter elements Yutaka Hayashi, Hisato Hiraishi 1989-04-04