Masaaki Matsumoto

HI Hitachi: 29 patents #976 of 28,497Top 4%

TS Toshiba Industrial Products And Systems: 11 patents #1 of 65Top 2%

HG HGST: 9 patents #11 of 483Top 3%

TS Toshiba Infrastructure Systems & Solutions: 6 patents #9 of 424Top 3%

CC Cateye Co.: 5 patents #9 of 37Top 25%

TC Tsubakimoto Chain: 4 patents #110 of 593Top 20%

Mitsubishi Electric: 3 patents #8,691 of 25,717Top 35%

KC Koyo Seiko Co.: 3 patents #150 of 749Top 25%

DC Dai-Ichi Kogyo Seiyaku Co.: 2 patents #87 of 288Top 35%

ML Mitsubishi Pencil Company, Limited: 2 patents #127 of 302Top 45%

Pioneer: 2 patents #761 of 1,730Top 45%

TM Tsuyama Mfg.: 2 patents #3 of 8Top 40%

PA Panasonic: 2 patents #9,678 of 21,108Top 50%

DC Dks Co.: 1 patents #6 of 15Top 40%

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

📍 Shimabara, JP: #13 of 395 inventorsTop 4%

Overall (All Time): #24,828 of 4,157,543Top 1%

Patents All Time

Issued Patents All Time

Showing 76–76 of 76 patents

Patent #	Title	Co-Inventors	Date
4479693	Device for detachably attaching electric appliances	Takashi Uyeda	1984-10-30