RT

Ryoichi Takayama

Sumitomo Electric Industries: 4 patents #204 of 3,632Top 6%
📍 Suita, JP: #4 of 86 inventorsTop 5%
Overall (2005): #9,676 of 245,428Top 4%
4
Patents 2005

Issued Patents 2005

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
6969157 Piezoelectric element, ink jet head, angular velocity sensor, method for manufacturing the same, and ink jet recording apparatus Atsushi Tomozawa, Eiji Fujii, Hideo Torii, Akiko Murata, Taku Hirasawa 2005-11-29
6909341 Surface acoustic wave filter utilizing a layer for preventing grain boundary diffusion Hidekazu Nakanishi, Tetsuo Kawasaki, Toru Sakuragawa, Yasuhiko Yokota 2005-06-21
6891449 Antenna duplexer Tetsuo Kawasaki, Yuki Satoh, Kozo Murakami, Toru Sakuragawa 2005-05-10
6886922 Liquid discharge head and manufacturing method thereof Taku Hirasawa, Akiko Murata, Atsushi Tomozawa, Eiji Fujii, Hideo Torii 2005-05-03