Akira Yokoyama

NC Nihon Medi-Physics Co.: 13 patents #5 of 201Top 3%

Canon: 8 patents #7,260 of 19,416Top 40%

Ricoh Company: 8 patents #2,692 of 9,818Top 30%

NC Nippon Carbon Co.: 5 patents #5 of 58Top 9%

MI Mitsui Petrochemical Industries: 3 patents #226 of 1,024Top 25%

Mitsubishi Electric: 2 patents #11,187 of 25,717Top 45%

TO Tosoh: 2 patents #354 of 1,042Top 35%

CC Chugai Ro Co.: 2 patents #16 of 127Top 15%

CC Citizen Watch Co.: 2 patents #460 of 1,225Top 40%

SI Shinwa Chemical Industries: 2 patents #4 of 23Top 20%

TO Toyota: 1 patents #15,335 of 26,838Top 60%

EA E.I. Du Pont De Nemours And: 1 patents #4,343 of 8,010Top 55%

FP Fujimoto Pharmaceutical: 1 patents #9 of 20Top 45%

Honda Motor Co.: 1 patents #12,035 of 21,052Top 60%

SC Showa Highpolymer Co.: 1 patents #45 of 102Top 45%

SC Sumitomo Chemical: 1 patents #2,469 of 4,033Top 65%

TI Toray Industries: 1 patents #2,000 of 3,690Top 55%

UN Unknown: 1 patents #29,356 of 83,584Top 40%

BY Bbf Yamate: 1 patents #4 of 7Top 60%

Overall (All Time): #51,916 of 4,157,543Top 2%

Patents All Time

Issued Patents All Time

Showing 51–51 of 51 patents

Patent #	Title	Co-Inventors	Date
4199931	Connection terminal construction for driving coils of electronic timepieces	—	1980-04-29