TK

Takaaki Kumazawa

HI Hitachi: 7 patents #5,859 of 28,497Top 25%
Sumitomo Electric Industries: 1 patents #13,249 of 21,551Top 65%
PA Panasonic: 1 patents #13,264 of 21,108Top 65%
Overall (All Time): #564,324 of 4,157,543Top 15%
9
Patents All Time

Issued Patents All Time

Showing 1–9 of 9 patents

Patent #TitleCo-InventorsDate
10789974 Tonearm unit and playback device Tomoyuki Yamashiro, Takeru SAKAMOTO 2020-09-29
7899567 Method and program for selecting product to be inspected Masataka Tanaka, Masayuki ICHINOHE 2011-03-01
7840361 Method for calculating environmental load, program for calculating environmental load, and method for converting units Noriaki Yamamoto, Yoshiharu Sekiya 2010-11-23
6895346 Method for test conditions Yuichi Hamamura, Hisao Asakura, Kazuyuki Tsunokuni, Aritoshi Sugimoto 2005-05-17
6841405 Photomask for test wafers Yuichi Hamamura, Hisao Asakura, Aritoshi Sugimoto, Kazuyuki Tsunokuni 2005-01-11
6780660 System for testing electronic devices Yuichi Hamamura, Hisao Asakura, Aritoshi Sugimoto, Kazuyuki Tsunokuni 2004-08-24
6770496 Method of testing electronic devices Yuichi Hamamura, Hisao Asakura, Aritoshi Sugimoto, Kazuyuki Tsunokuni 2004-08-03
6771077 Method of testing electronic devices indicating short-circuit Yuichi Hamamura, Hisao Asakura, Aritoshi Sugimoto, Kazuyuki Tsunokuni 2004-08-03
6704495 Audio-video device reproducing apparatus Genichi Yamada, Ko Hamano, Tadashi Maeoka, Yoshihiro Fujimoto, Takamichi Nakagawa 2004-03-09