Granted Patent
Utility
US 6,740,521 · App. 10/094,151
High-sensitive detection of environmental pollutants
Inventors:
Hiroko Isoda, Takashi Koyama, Masako Tasaki, Syuichi Oka, Norio Sugiura, Takaaki Maekawa, Yuhei Inamori, Shinichi Yokota, Mikio Kitahara, Kazuhiro Nagata
Patented Case
View Patent ↗
Granted: May 25, 2004
Filed: Mar 11, 2002
Inventors
Hiroko Isoda
Takashi Koyama
Masako Tasaki
Syuichi Oka
Norio Sugiura
Takaaki Maekawa
Yuhei Inamori
Shinichi Yokota
Mikio Kitahara
Kazuhiro Nagata
Assignees (at issue)
KANEKA CORPORATION
The Agency of Industrial Science and Technology
Ministry of International Trade & Industry
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.