Takeshi Kuwahara

NT NTT: 20 patents #125 of 4,871Top 3%

TO Toyota: 13 patents #2,130 of 26,838Top 8%

TK Tanaka Denshi Kogyo K. K.: 4 patents #3 of 31Top 10%

AC Aisin Aw Co.: 4 patents #484 of 2,011Top 25%

IBM: 4 patents #21,733 of 70,183Top 35%

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

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

FL Fujitsu Hitachi Plasma Display Limited: 2 patents #76 of 166Top 50%

RI Riken: 1 patents #679 of 1,824Top 40%

NE Nec Electronics: 1 patents #715 of 1,789Top 40%

LG: 1 patents #17,402 of 26,165Top 70%

HH Hitachi Mitsubishi Hydro: 1 patents #10 of 24Top 45%

Overall (All Time): #51,416 of 4,157,543Top 2%

Patents All Time

Issued Patents All Time

Showing 51–51 of 51 patents

Patent #	Title	Co-Inventors	Date
5974871	Tension measuring apparatus and method for piston ring	Hiroyuki Kanda	1999-11-02