Takahiro Sugiyama

HI Hitachi: 41 patents #472 of 28,497Top 2%

HK Hamamatsu Photonics K.K.: 30 patents #55 of 1,436Top 4%

HC Hitachi Cable: 22 patents #10 of 1,086Top 1%

DK Daiwa Kasei Kogyo: 11 patents #3 of 51Top 6%

PE Pentax: 8 patents #212 of 761Top 30%

KU Kyoto University: 8 patents #41 of 1,688Top 3%

TO Toyota: 4 patents #6,703 of 26,838Top 25%

PR Proterial: 4 patents #28 of 267Top 15%

NL Noritake Co., Limited: 3 patents #34 of 334Top 15%

HC Hitachi Media Electronics Co.: 2 patents #79 of 214Top 40%

KT Kabushiki Kaisha Toshiba: 1 patents #13,537 of 21,451Top 65%

DC Daiwa Kasei Industry Co.: 1 patents #31 of 61Top 55%

NE Nec: 1 patents #7,889 of 14,502Top 55%

CC Clarion Co.: 1 patents #397 of 721Top 60%

TG Tyco Electronics Japan G.K.: 1 patents #122 of 248Top 50%

HF Hitachi Cable Fine-Tech: 1 patents #10 of 33Top 35%

HC Howa Plastics Co.: 1 patents #7 of 26Top 30%

Overall (All Time): #8,968 of 4,157,543Top 1%

126

Patents All Time

Issued Patents All Time

Showing 126–126 of 126 patents

Patent #	Title	Co-Inventors	Date
4217034	Retrofocus type wide angle photographic lens	—	1980-08-12