TT

Toshikazu Tachikawa

TC Tokyo Ohka Kogyo Co.: 2 patents #2 of 58Top 4%
Overall (2005): #30,869 of 245,428Top 15%
2
Patents 2005

Issued Patents 2005

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
6936400 Negative resist composition Ryoichi Takasu, Miwa Miyairi, Jun Iwashita 2005-08-30
6864036 Negative-working photoresist composition Fumitake Kaneko, Naotaka Kubota, Miwa Miyairi, Takako Hirosaki, Koutaro Endo 2005-03-08