SF

Satoru Fujiwara

HO Hosiden: 18 patents #17 of 328Top 6%
MI Mitsubishi Cable Industries: 6 patents #21 of 372Top 6%
EB Ebara: 3 patents #598 of 1,611Top 40%
FS Furukawa Automotive Systems: 1 patents #140 of 269Top 55%
FC Furukawa Electric Co.: 1 patents #1,242 of 2,370Top 55%
NE Nec: 1 patents #7,889 of 14,502Top 55%
Yamaha: 1 patents #1,232 of 2,001Top 65%
Overall (All Time): #130,331 of 4,157,543Top 4%
29
Patents All Time

Issued Patents All Time

Showing 1–25 of 29 patents

Patent #TitleCo-InventorsDate
11800292 Sound producing device and method of manufacturing sound producing device Ryo Inoue, Tadashi Hanai 2023-10-24
9253577 Multi-coil unit, voice coil, and electro-acoustic transducer using the same Masaaki Miyamoto, Yoshiyuki Shinoda 2016-02-02
9103484 Connection device Toyofumi Hayashi, Tomohiko Kamimura, Hiroyoshi Shinozuka, Takuro Michinomoto 2015-08-11
D707204 Speaker Masaaki Miyamoto, Takeshi Terazono 2014-06-17
8698043 Handle grip with heater Yuichi Fukuda, Michiyasu Watanabe, Kouzo Sasaki 2014-04-15
8481889 Hand grip member with electric heater Kouzou Sasaki, Yuichi Fukuda 2013-07-09
8378214 Harness connection member Tsugio Ambo, Yoshikazu Tanaka, Tomokazu Matsumoto 2013-02-19
8362366 Circuit board, its manufacturing method, and joint box using circuit board Tsugio Ambo, Yoshikatsu Hasegawa, Chihiro Nakagawa, Takeshi Ono, Atsushi Urushidani +2 more 2013-01-29
8107650 Piezoelectric electroacoustic transducing device Yuka Nagata 2012-01-31
7943859 Circuit board, its manufacturing method, and joint box using circuit board Tsugio Ambo, Yoshikatsu Hasegawa, Chihiro Nakagawa, Takeshi Ono, Atsushi Urushidani +2 more 2011-05-17
7629730 Piezoelectric electroacoustic transducing device Yuka Nagata 2009-12-08
D598428 Speaker Masahide Suzuki, Yuka Asano, Masahito Fukada 2009-08-18
7550899 Piezoelectric electroacoustic transducing device Yuka Nagata 2009-06-23
D592643 Speaker Masahide Suzuki, Yuka Asano, Masahito Fukada 2009-05-19
D591265 Speaker Masahide Suzuki, Shouhei Takagaki 2009-04-28
D575270 Speaker Masahide Suzuki, Shouhei Takagaki 2008-08-19
D572238 Speaker Masahide Suzuki, Yuka Nagata, Masahito Fukada 2008-07-01
D562804 Speaker Masahide Suzuki, Yuka Nagata 2008-02-26
D533813 Heater for handle grip of a motorcycle Yuichi Fukuda, Kouzo Sasaki 2006-12-19
D529482 Speaker Tomohiko Kamimura, Tomohiro Oda 2006-10-03
D519986 Speaker Tomohiko Kamimura, Tomohiro Oda 2006-05-02
6841114 Molding method and apparatus for resin long body Akihiro Yamamoto, Atsushi Ohhori 2005-01-11
6842530 Electric acoustic converter having a rear surface terminal Kenji Fukazawa, Tomohiko Kamimura, Naoya Fujimoto 2005-01-11
6526635 Cord clip Koji Nasu 2003-03-04
6438248 Hand-free apparatus Tomohiko Kamimura, Koji Nasu, Shingo Sato 2002-08-20