YT

Yukio Tokunaga

FC Fuji Kagakushi Kogyo Co.: 1 patents #1 of 3Top 35%
NP Nippon Telegraph And Telephone Public: 1 patents #36 of 171Top 25%
OC Oki Electric Industry Co.: 1 patents #8 of 33Top 25%
Overall (1982): #5,809 of 81,411Top 8%
2
Patents 1982

Issued Patents 1982

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4318597 Optical print head for optical printing devices Shintaro Kotani, Ichimatsu Abiko, Rikuo Takano, Yasushi Hoshino, Kazuyoshi Tateishi 1982-03-09
4315643 Heat-sensitive transfer element Kiyoshi Sugiyama, Tadao Seto 1982-02-16