AY

Akiyoshi Yamazaki

TC Tokyo Ohka Kogyo Co.: 2 patents #8 of 59Top 15%
Overall (2002): #74,614 of 266,432Top 30%
2
Patents 2002

Issued Patents 2002

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
6485887 Positive-working photoresist composition Katsumi Oomori, Hiroto Yukawa, Kazuo Tani, Yohei Kinoshita, Tomotaka Yamada 2002-11-26
6340553 Positive-working photoresist composition Katsumi Oomori, Hiroto Yukawa, Kazuo Tani, Yohei Kinoshita, Tomotaka Yamada 2002-01-22