TM

Tsukasa Maruyama

DC Dowa Mining Co.: 2 patents #1 of 34Top 3%
The Yokohama Rubber Co.: 1 patents #28 of 78Top 40%
Overall (2002): #19,150 of 266,432Top 8%
3
Patents 2002

Issued Patents 2002

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
6483623 Lamp apparatus for use in optical communication and a process for producing the same 2002-11-19
6346701 Photodetection method and photodetection device and photodetection/light emission device 2002-02-12
6344510 Rubber vulcanization agent and rubber composition containing the same Kazunori Ishikawa 2002-02-05