SK

Shigeo Kondo

Sumitomo Electric Industries: 2 patents #54 of 557Top 10%
📍 Hirakata, JP: #1 of 4 inventorsTop 25%
Overall (1982): #7,806 of 81,411Top 10%
2
Patents 1982

Issued Patents 1982

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4348077 Electrochromic display device Nobuyuki Yoshiike 1982-09-07
4331385 Electrochromic display device Nobuyuki Yoshiike 1982-05-25