Koichi Nakagawa

Canon: 21 patents #3,043 of 19,416Top 20%

JS Jfe Steel: 9 patents #195 of 1,401Top 15%

Mitsubishi Electric: 7 patents #4,301 of 25,717Top 20%

NC Nippon Shokubai Co.: 5 patents #248 of 1,108Top 25%

NE Nec: 5 patents #2,830 of 14,502Top 20%

Foxconn: 4 patents #1,314 of 5,504Top 25%

FC Fine M-Tec Co.: 4 patents #10 of 97Top 15%

TE Tencent: 4 patents #1,478 of 8,131Top 20%

OC Oki Electric Industry Co.: 3 patents #700 of 2,807Top 25%

AC Alps Electric Co.: 3 patents #607 of 2,177Top 30%

HI Hitachi: 3 patents #10,712 of 28,497Top 40%

Fujitsu Limited: 2 patents #10,930 of 24,456Top 45%

AC Awa Paper Mfg. Co.: 2 patents #3 of 27Top 15%

TC Toyo Jidoki Co.: 2 patents #18 of 43Top 45%

NC Nippon Shokubai Kagaku Kogyo Co.: 1 patents #186 of 341Top 55%

NP Nippon Telegraph And Telephone Public: 1 patents #297 of 842Top 40%

NN Nippon Television Network: 1 patents #15 of 33Top 50%

NE Ntt Electronics: 1 patents #160 of 358Top 45%

MB Mitsuboshi Belting: 1 patents #183 of 333Top 55%

PC Pacraft Co.: 1 patents #3 of 17Top 20%

SC Seitetsu Kagaku Co.: 1 patents #38 of 86Top 45%

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

SC Sumitomo Metal Mining Co.: 1 patents #385 of 736Top 55%

Kubota: 1 patents #1,212 of 2,059Top 60%

DC Duskin Co.: 1 patents #10 of 20Top 50%

AG Agc: 1 patents #509 of 954Top 55%

Overall (All Time): #23,654 of 4,157,543Top 1%

Patents All Time

Issued Patents All Time

Showing 76–78 of 78 patents

Patent #	Title	Co-Inventors	Date
4614144	Music card system	Iwao Sagara, Shintaro Hotta	1986-09-30
4535356	Music information transmission system	Yoshio Sugimori, Yoshihide Kimata, Yosai Araki, Tomoji Arai	1985-08-13
4497759	Drawing of polyoxymethylene using dielectric heating	Osamu Maeda, Shinzo Yamakawa	1985-02-05