SI

Shiro Iwakura

KL Kenwood Limited: 6 patents #17 of 319Top 6%
NC Namiki Precision Jewel Co.: 1 patents #12 of 47Top 30%
TK Toyo Boseki Kabushiki Kaisha: 1 patents #541 of 1,085Top 50%
TK Trio Kabushiki Kaisha: 1 patents #22 of 70Top 35%
Overall (All Time): #764,618 of 4,157,543Top 20%
7
Patents All Time

Issued Patents All Time

Showing 1–7 of 7 patents

Patent #TitleCo-InventorsDate
5594805 Loudspeaker Yoshio Sakamoto, Akio Tanase, Kaoru Yamazaki 1997-01-14
5253301 Nondirectional acoustic generator and speaker system Masakatsu Sakamoto, Kaoru Yamazaki 1993-10-12
5091958 Wiring structure of loudspeaker Yoshio Sakamoto 1992-02-25
5031720 Speaker diaphragm Shuhei Ohta, Masakatu Sakamoto, Yoshikazu Shirasaki, Ichiro Yoshida 1991-07-16
4772513 Method for forming a hard carbon thin film on article and applications thereof Masakatsu Sakamoto, Shuhei Ohta, Kaoru Yamazaki, Yoichi Yaguchi, Hiroaki Toshima +1 more 1988-09-20
4752963 Electroacoustic converter having a recessed step on the center pole Kaoru Yamazaki, Masatoshi Kunii, Toshihiro Hayashi, Yoshio Sakamoto 1988-06-21
4725345 Method for forming a hard carbon thin film on article and applications thereof Masakatsu Sakamoto, Shuhei Ohta, Kaoru Yamazaki, Yoichi Yaguchi, Hiroaki Toshima +1 more 1988-02-16