AT

Akiyoshi Tsuchida

DC Dainippon Ink And Chemicals: 1 patents #446 of 1,002Top 45%
SC Shin-Etsu Quartz Products Co.: 1 patents #77 of 149Top 55%
Overall (All Time): #1,693,282 of 4,157,543Top 45%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
12215052 Silica glass disc having dimples formed thereon Kyoichi Inaki, Norikazu Fujii 2025-02-04
4927734 Silver halide photographic light-sensitive material and a process for forming a high contrast photographic image Shuji Rokutanda, Yasuo Higemitsu, Yukihiro Yamakoshi 1990-05-22