JT

Junichi Takahashi

NT NTT: 1 patents #50 of 267Top 20%
Ricoh Company: 1 patents #267 of 684Top 40%
Sumitomo Electric Industries: 1 patents #1,404 of 3,885Top 40%
Overall (2003): #27,548 of 273,478Top 15%
3
Patents 2003

Issued Patents 2003

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
6665239 Optical information recording and reproducing apparatus Koichi Kudou, Nobuaki Toyoshima 2003-12-16
6643439 Photonic crystal waveguide Masaya Notomi, Koji Yamada, Akihiko Shinya, Chiharu Takahashi, Itaru Yokohama 2003-11-04
6605896 Low pressure mercury vapor discharge lamp and manufacturing method therefor Takeshi Matsumura, Masao Yukawa 2003-08-12