Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025
MI

Masafumi Ito

TETeac: 188 patents #1 of 440Top 1%
Yamaha: 38 patents #17 of 2,001Top 1%
TIToyota Industries: 11 patents #904 of 1,610Top 60%
SLSemiconductor Energy Laboratory: 7 patents #603 of 1,113Top 55%
Bridgestone: 5 patents #476 of 2,860Top 20%
Brother Kogyo: 5 patents #1,308 of 2,767Top 50%
NCNu Eco Engineering Co.: 4 patents #3 of 12Top 25%
Sharp Kabushiki Kaisha: 4 patents #3,475 of 10,731Top 35%
ASAsics: 4 patents #79 of 285Top 30%
MUMeijo University: 2 patents #21 of 103Top 25%
TLTokyo Electron Limited: 2 patents #2,602 of 5,567Top 50%
BIBrother Industries: 1 patents #24 of 45Top 55%
KCKatagiri Engineering Co.: 1 patents #6 of 11Top 55%
MMMitsubishi Materials: 1 patents #812 of 1,543Top 55%
NUNagoya University: 1 patents #34 of 109Top 35%
Nissan Motor Co.: 1 patents #4,519 of 8,689Top 55%
NCNpc Co.: 1 patents #7 of 17Top 45%
UNUnknown: 1 patents #29,356 of 83,584Top 40%
Hamamatsu, JP: #4 of 41 inventorsTop 10%
Overall (All Time): #1,610 of 4,157,543Top 1%
273 Patents All Time

Issued Patents All Time

Showing 51–75 of 273 patents

Patent #TitleCo-InventorsDate
D613147 Slider knob 2010-04-06
D610574 Audio mixer 2010-02-23
D609220 Audio mixer 2010-02-02
D609219 Audio mixer 2010-02-02
D609218 Audio mixer 2010-02-02
D607438 Audio mixer 2010-01-05
7530797 Variable displacement compressor Sokichi Hibino, Shiro Hayashi, Junichi Takahata, Takayuki Ohara 2009-05-12
7416330 Method and apparatus for measuring temperature of substrate Yasuyuki Okamura, Tatsuo Shiina, Nobuo Ishii, Tomohiro Suzuki, Chishio Koshimizu 2008-08-26
D566165 Electronic piano 2008-04-08
D565642 Electronic piano 2008-04-01
D518086 Musical signal controller 2006-03-28
D507589 Electronic drum 2005-07-19
D507014 Electronic drum 2005-07-05
6629823 Compressors Masaki Ota, Tomoji Tarutani, Tomohiro Wakita, Kenta Nishimura, Yoshinori Inoue 2003-10-07
6501082 Plasma deposition apparatus and method with controller Toshio Goto, Masaru Hori, Nobuo Ishii, Satoru Kawakami 2002-12-31
D459336 Combined radio receiver and digital audio disc player Keiji Tsunoda 2002-06-25
D458242 Digital audio disc player Shigeru Hasegawa 2002-06-04
D451083 Combined amplifier and tuner Hiroyuki Watanabe, Minoru Sube 2001-11-27
D450670 Digital video disc player Shigeru Hasegawa, Tooru Katayama 2001-11-20
D448354 Digital video disc player Shigeru Hasegawa, Tooru Katayama 2001-09-25
D447469 Digital audio disc player Minoru Sube, Hiroyuki Watanabe, Yukio Iikura 2001-09-04
D445791 Optical disc drive Shigeru Hasegawa, Hiroyuki Watanabe, Katsuhiro Takashima 2001-07-31
D444778 Combined amplifier and tuner Hiroyuki Watanabe, Minoru Sube 2001-07-10
D444138 Combined amplifier and tuner Minoru Sube, Yukio Iikura 2001-06-26
D443868 Combined digital audio disc player, amplifier and tuner Hiroyuki Watanabe, Yukio Iikura 2001-06-19