KT

Koji Tsukahara

Ricoh Company: 2 patents #5,693 of 9,818Top 60%
TC Tohoku Ricoh Co.: 2 patents #69 of 204Top 35%
Overall (All Time): #2,268,346 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
5606448 Polygon scanner and production process thereof Mitsuo Suzuki, Yukio Itami, Yoshio Hashimoto, Yoshihiro Takahashi, Takao Abe 1997-02-25
5574591 Polygon scanner and production process thereof Mitsuo Suzuki, Yukio Itami, Yoshio Hashimoto, Yoshihiro Takahashi, Takao Abe 1996-11-12