Masao Matsumoto

SO Sony: 9 patents #4,874 of 25,231Top 20%

YK Yoshida Kogyo K.K.: 4 patents #104 of 468Top 25%

PA Panasonic: 4 patents #6,180 of 21,108Top 30%

YK Ykk: 3 patents #225 of 845Top 30%

UB Unilever Patent Holdings B.V.: 2 patents #73 of 552Top 15%

DE Denso: 1 patents #6,940 of 11,792Top 60%

OC Otsuka Chemical Co.: 1 patents #131 of 269Top 50%

FC Fuji Kagakushi Kogyo Co.: 1 patents #13 of 37Top 40%

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

NS Nippon Cable System: 1 patents #25 of 90Top 30%

Nissan Motor Co.: 1 patents #4,519 of 8,689Top 55%

📍 Tokushima, JP: #50 of 1,059 inventorsTop 5%

Overall (All Time): #155,708 of 4,157,543Top 4%

Patents All Time

Issued Patents All Time

Showing 26–26 of 26 patents

Patent #	Title	Co-Inventors	Date
4220528	Process for disoxidating gas or water	Isao Manabe	1980-09-02