Hisashi Okada

Fujitsu Limited: 75 patents #93 of 24,456Top 1%

FU Fujifilm: 14 patents #627 of 4,519Top 15%

NS Nippon Gakki Seizo: 3 patents #74 of 332Top 25%

SC Sanyo Electric Co.: 2 patents #2,557 of 6,347Top 45%

SH Shofu: 2 patents #57 of 145Top 40%

Sumitomo Electric Industries: 1 patents #13,249 of 21,551Top 65%

UL Udc Ireland Limited: 1 patents #96 of 148Top 65%

FC Fuji Photo Co.: 1 patents #1 of 51Top 2%

PA Panasonic: 1 patents #13,264 of 21,108Top 65%

FL Fujitsu Hitachi Plasma Display Limited: 1 patents #106 of 166Top 65%

Kawasaki: 1 patents #1,551 of 2,943Top 55%

KY Kyulux: 1 patents #44 of 91Top 50%

RJ Research Development Corporation Of Japan: 1 patents #170 of 402Top 45%

Overall (All Time): #14,021 of 4,157,543Top 1%

102

Patents All Time

Issued Patents All Time

Showing 101–102 of 102 patents

Patent #	Title	Co-Inventors	Date
4281225	Pickup cartridge for reproducing signals recorded on a 45-45 stereophonic record disk	Tsugio Ito, Kenshiro Aizawa	1981-07-28
4238646	Pickup cartridge for reproducing signals recorded on a 45--45 stereophonic record disk	Kenshiro Aizawa	1980-12-09