KY

Kenji Yokoyama

NS Nippon Gakki Seizo: 37 patents #1 of 332Top 1%
Yamaha: 15 patents #142 of 2,001Top 8%
Tdk: 14 patents #399 of 3,796Top 15%
TK Terumo Kabushiki Kaisha: 10 patents #119 of 1,558Top 8%
FM Flying Mole: 6 patents #1 of 3Top 35%
PA Panasonic: 6 patents #4,438 of 21,108Top 25%
TC Toppan Printing Co.: 6 patents #114 of 1,467Top 8%
Sharp Kabushiki Kaisha: 5 patents #3,007 of 10,731Top 30%
Canon: 5 patents #9,253 of 19,416Top 50%
SE Seiko Epson: 5 patents #2,973 of 7,774Top 40%
SO Sony: 4 patents #8,966 of 25,231Top 40%
NE Nec Environment Engineering: 4 patents #1 of 16Top 7%
TK Toshiba Tec Kabushiki Kaisha: 4 patents #629 of 1,664Top 40%
TA Tanita: 3 patents #51 of 216Top 25%
NP Nidec Pigeon: 3 patents #2 of 6Top 35%
NT NTT: 3 patents #1,627 of 4,871Top 35%
S( Sae Magnetics (H.K.): 3 patents #146 of 585Top 25%
TC Toagosei Chemical Industry Co.: 2 patents #16 of 115Top 15%
MI Mitsui Petrochemical Industries: 2 patents #322 of 1,024Top 35%
MB Mitsubishi Fuso Truck And Bus: 2 patents #35 of 114Top 35%
KI Katayanagi Institute: 2 patents #2 of 15Top 15%
KT Kabushiki Kaisha Toshiba: 2 patents #9,982 of 21,451Top 50%
HI Hitachi: 1 patents #17,742 of 28,497Top 65%
MI Mitsu Petrochemical Ind.: 1 patents #11 of 29Top 40%
KK Kanto Kagaku: 1 patents #73 of 181Top 45%
NE Ntt Electronics: 1 patents #160 of 358Top 45%
KC Konami Digital Entertainment Co.: 1 patents #313 of 611Top 55%
Overall (All Time): #7,870 of 4,157,543Top 1%
134
Patents All Time

Issued Patents All Time

Showing 126–134 of 134 patents

Patent #TitleCo-InventorsDate
4301421 Direct-coupled amplifier with output offset regulation 1981-11-17
4292468 Frequency selection circuit 1981-09-29
4290024 Voltage-to-current converter circuit 1981-09-15
4280102 Frequency response characteristic adjustable circuit 1981-07-21
4267521 Compound transistor circuitry 1981-05-12
4238737 Biasing arrangement for a push-pull amplifier 1980-12-09
4223273 Power amplifying device for driving loudspeakers 1980-09-16
4222012 Amplifier device 1980-09-09
4206419 Power amplifier 1980-06-03