Shigeki Yamada

Canon: 13 patents #5,080 of 19,416Top 30%

AK Aisan Kogyo Kabushiki Kaisha: 7 patents #60 of 642Top 10%

Bridgestone: 5 patents #476 of 2,860Top 20%

TC Tanabe Seiyaku Co.: 5 patents #58 of 389Top 15%

KC Kyoto Daiichi Kagaku Co.: 4 patents #22 of 118Top 20%

HI Hitachi: 4 patents #8,942 of 28,497Top 35%

Kyocera: 3 patents #999 of 3,732Top 30%

HC Hitachi Car Engineering Co.: 2 patents #204 of 465Top 45%

MC Mita Industrial Co.: 2 patents #508 of 891Top 60%

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

NT NTT: 2 patents #2,095 of 4,871Top 45%

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

SC Sanwa Kagaku Kenkyusho Co.: 1 patents #101 of 223Top 50%

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

HS Hitachi Automotive Systems: 1 patents #965 of 1,636Top 60%

Fujitsu Limited: 1 patents #14,843 of 24,456Top 65%

AR Arkray: 1 patents #203 of 354Top 60%

Overall (All Time): #50,436 of 4,157,543Top 2%

Patents All Time

Issued Patents All Time

Showing 51–52 of 52 patents

Patent #	Title	Co-Inventors	Date
4309362	Process for the optical resolution of DL-p-hydroxy-phenylglycine	Ichiro Chibata, Chikara Hongo	1982-01-05
4307314	Barrel-shaped claw-pole rotor for induction type AC generator	Akira Tokairin	1981-12-22