SM

Susumu Matsumoto

CO Combi: 28 patents #5 of 161Top 4%
Sumitomo Electric Industries: 13 patents #1,957 of 21,551Top 10%
MC Mitsubishi Chemical: 3 patents #118 of 716Top 20%
RT Renesas Technology: 3 patents #990 of 3,337Top 30%
SC Sekinos Co.: 3 patents #3 of 10Top 30%
PA Panasonic: 3 patents #7,617 of 21,108Top 40%
NK Nippon Kayaku: 2 patents #345 of 1,103Top 35%
TC Tsuchiya Mfg. Co.: 1 patents #7 of 40Top 20%
HO Horiba: 1 patents #319 of 604Top 55%
KT Kabushiki Kaisha Toshiba: 1 patents #13,537 of 21,451Top 65%
ME Mitsubishi Engineering-Plastics: 1 patents #79 of 163Top 50%
MK Mitsubishi Kasei: 1 patents #404 of 911Top 45%
Overall (All Time): #43,321 of 4,157,543Top 2%
57
Patents All Time

Issued Patents All Time

Showing 51–57 of 57 patents

Patent #TitleCo-InventorsDate
D265666 Educational toy rattle Shinroku Nakao, Yoshiyasu Ishii 1982-08-03
D265491 Toy animal Shinroku Nakao, Yoshiyasu Ishii 1982-07-20
4339149 Child's automotive safety seat Shinroku Nakao, Yoshiyasu Ishii, Kiyoshi Hoshino 1982-07-13
D264528 Baby seat Shinroku Nakao, Yoshiyasu Ishii, Kiyoshi Hoshino 1982-05-25
D261783 Musical toy Shinroku Nakao, Yoshiyasu Ishii 1981-11-10
D258301 Musical toy Shinroku Nakao, Yoshiyasu Ishii 1981-02-17
D256705 Simulative tumbling toy Shinroku Nakao, Yoshiyasu Ishii 1980-09-02