AT

Akifumi Tosa

Ngk Spark Plug Co.: 2 patents #22 of 157Top 15%
Overall (2011): #113,909 of 364,097Top 35%
2
Patents 2011

Issued Patents 2011

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
8071496 Silicon nitride-melilite composite sintered body and device utilizing the same Yasushi Hara, Tetsuya Maeda, Takenori Sawamura 2011-12-06
7956454 Wiring board and ceramic chip to be embedded Hiroshi Yamamoto, Toshitake Seki, Shinji Yuri, Masaki Muramatsu, Motohiko Sato 2011-06-07