MT

Michio Tokunaga

HI Hitachi: 4 patents #8,942 of 28,497Top 35%
NP Nippon Telegraph And Telephone Public: 2 patents #129 of 842Top 20%
Fujitsu Limited: 1 patents #14,843 of 24,456Top 65%
NC Nippon Electric Co.: 1 patents #251 of 792Top 35%
OC Oki Electric Industry Co.: 1 patents #1,459 of 2,807Top 55%
📍 Zushi, JP: #83 of 187 inventorsTop 45%
Overall (All Time): #1,308,772 of 4,157,543Top 35%
4
Patents All Time

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
4465967 Current supply circuit Junjiro Kitano, Akio Sagawa, Toshio Hayashi, Kazuo Hamazato 1984-08-14
4315206 Current supply circuit for telephone exchange Ryoichi Okada, Hideo Mizutani, Koichi Hasegawa, Takaaki Osaki 1982-02-09
4277696 Semiconductor switch circuit Junjiro Kitano 1981-07-07
4232234 Semiconductor switch circuit Shinzi Okuhara, Ichiro Ohhinata 1980-11-04