Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025
AM

Akira Matsui — 130 Patents

Sony: 29 patents #1,229 of 25,231Top 5%
OLOlympus: 29 patents #54 of 3,097Top 2%
Toyota: 13 patents #2,130 of 26,838Top 8%
Aisin Seiki Kabushiki Kaisha: 13 patents #206 of 3,782Top 6%
Canon: 10 patents #6,241 of 19,416Top 35%
OMOmron: 9 patents #296 of 3,089Top 10%
JMJ. Morita Mfg.: 8 patents #20 of 136Top 15%
OSOlympus Medical Systems: 7 patents #82 of 833Top 10%
OCOlympus Optical Co.: 6 patents #576 of 2,334Top 25%
Kabushiki Kaisha Toshiba: 5 patents #5,683 of 21,451Top 30%
Hitachi: 5 patents #7,555 of 28,497Top 30%
RORoland: 4 patents #55 of 292Top 20%
NTNtn: 3 patents #452 of 1,364Top 35%
AEAida Engineering: 3 patents #33 of 163Top 25%
MCMayekawa Mfg. Co.: 3 patents #47 of 273Top 20%
UNUnknown: 3 patents #7,366 of 83,584Top 9%
NCNippon Electric Glass Co.: 2 patents #174 of 437Top 40%
ACAcr Co.: 1 patents #6 of 16Top 40%
AKAsahi Denka Kogyo K.K.: 1 patents #47 of 162Top 30%
São Paulo, BR: #1 of 1,773 inventorsTop 1%
Overall (All Time): #8,403 of 4,157,543Top 1%
130 Patents All Time

Issued Patents All Time

Showing 126–130 of 130 patents

Patent #TitleCo-InventorsDate
4783429 No alkali containing biocompatible glass ceramic with apatite, wollastonite and diopside crystals mixed Takehiro Shibuya, Yoshinori Morita 1988-11-08
4697466 Drive device for press Masayoshi Sugawara, Yuichi Nakamura 1987-10-06
4689390 Curable epoxy resin composition Hiroshi Suzuki, Yutaka Asakawa 1987-08-25
4674357 Balancing device for press Masayoshi Sugawara, Yuichi Nakamura 1987-06-23
4606255 Guitar for guitar synthesizer Yoshiaki Hayashi 1986-08-19