Masahiro Nakagawa

NI Nikon: 13 patents #314 of 2,493Top 15%

NT NTT: 13 patents #292 of 4,871Top 6%

Sumitomo Electric Industries: 6 patents #4,612 of 21,551Top 25%

FC Fukuda Metal Foil & Powder Co.: 4 patents #10 of 95Top 15%

TO Toyota: 3 patents #8,352 of 26,838Top 35%

HO Hoya: 2 patents #523 of 1,290Top 45%

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

OC Oji Paper Co.: 2 patents #101 of 423Top 25%

SS Sakata Seed: 2 patents #30 of 54Top 60%

TK Toshiba Kikai: 1 patents #381 of 713Top 55%

YA Yazaki: 1 patents #2,077 of 3,427Top 65%

NT Nagaoka University Of Technology: 1 patents #15 of 81Top 20%

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

TC Toho Beslon Co.: 1 patents #18 of 50Top 40%

NT National University Corporation Magaoka University Of Technology: 1 patents #39 of 96Top 45%

MC Mitsui Engineering & Shipbuilding Co.: 1 patents #166 of 496Top 35%

NC Nippon Kokan Co.: 1 patents #290 of 735Top 40%

Overall (All Time): #49,693 of 4,157,543Top 2%

Patents All Time

Issued Patents All Time

Showing 51–52 of 52 patents

Patent #	Title	Co-Inventors	Date
4438738	Rocker arm and process for producing the same	Hiroyuki Kosuda, Yasuo Kogo, Yasuhiro Mishima	1984-03-27
4299524	Devices for automatically supplying tubular workpieces	Kiyoshi Sawada, Nobuo Ozawa, Katsuhiko Oota, Takefumi Narahara, Yoshinobu Fujimori, deceased +1 more	1981-11-10