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 101–125 of 130 patents

Patent #TitleCo-InventorsDate
6493102 Facsimile method and apparatus for communicating and storing receiving station communication information Makoto Kobayashi, Toru Maeda, Seiji Ohmori 2002-12-10
6489550 Musical apparatus detecting maximum values and/or peak values of reflected light beams to control musical functions Shigeru Takahashi 2002-12-03
6408106 Information reading system Seiji Tatsuta 2002-06-18
6364209 Data reading apparatus Seiji Tatsuta 2002-04-02
6175074 Musical apparatus detecting maximum values and/or peak values of reflected light beams to control musical functions Shigeru Takahashi 2001-01-16
6164831 Rolling bearing for high-speed rotating equipment Yoshinori Morita 2000-12-26
6122072 Data communication apparatus Toru Maeda, Hitoshi Saito, Makoto Kobayashi, Seiji Ohmori 2000-09-19
6028734 Cassette display viewer device 2000-02-22
6023539 Code reading apparatus having optimal battery voltage detection function Yoshikazu Ohnami, Takeshi Mori, Akira Matsueda 2000-02-08
6005675 Facsimile apparatus for transmitting and receiving data and commands relating to the apparatus Toru Maeda, Hitoshi Saito, Akemi Sato, Kazuhiro Sugawara 1999-12-21
6001778 Lubricating oil for rolling bearing in high-speed rotating equipment, and bearing lubricated with the same lubricating oil Yoshinori Morita 1999-12-14
5990409 Musical apparatus detecting maximum values and/or peak values of reflected light beams to control musical functions Shigeru Takahashi 1999-11-23
5981448 Lubricating oil for rolling bearing in high-speed rotating equipment and bearing lubricated with the same lubricating oil Yoshinori Morita 1999-11-09
5918986 Bearing for high-speed rotating equipment Yoshinori Morita, Masahiro Kato, Masaharu Hori 1999-07-06
5907409 Device control apparatus and method for controlling a device in accordance with set data Kazuhiro Sugawara, Toru Maeda, Hitoshi Saito, Akemi Sato 1999-05-25
5900197 Production process of porous retainer for rolling bearing Yoshinori Morita, Fuminori Satoji, Masayuki Yamazaki 1999-05-04
5772436 Odontotherapeutic hand piece Fuminori Satoji, Yoshinori Morita, Shigeo Kobayashi 1998-06-30
5729354 Device control apparatus and method storing historical setting data Kazuhiro Sugawara, Toru Maeda, Hitoshi Saito, Akemi Sato 1998-03-17
5562446 Small handpiece with fluid driven turbine Yoshinori Morita 1996-10-08
5480844 Crystallized-glass-made artificial nucleus for pearl, production process of the artificial nucleus, and pearl produced using the artificial nucleus Yoshinori Morita, Hiroyuki Inoue, Yoshiaki Inoue 1996-01-02
5477339 Facsimile machine capable of controllably permitting remote entry of data Kazuhiro Sugawara, Toru Maeda, Hitoshi Saito, Akemi Sato 1995-12-19
5460495 Screw rotor for fluid handling devices Takayuki Kishi, Toshio Nishio, Keisuke Kasahara 1995-10-24
5351576 Apparatus for adjusting slide stroke of press Shozo Imanishi 1994-10-04
5034353 Biocompatible glass ceramics Takehiro Shibuya, Yoshinori Morita, Kiyoyuki Okunaga, Masayuki Ninomiya 1991-07-23
4903152 Magnetic recording and reproducing apparatus capable of containing a plurality of recording cassettes 1990-02-20