Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025
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Akira Aoki — 64 Patents

Rohm Co.: 16 patents #143 of 2,292Top 7%
MCMax Co.: 9 patents #48 of 321Top 15%
TCTachi-S Co.: 6 patents #41 of 398Top 15%
HCHitachi High-Tech Instuments Co.: 4 patents #7 of 77Top 10%
TCTachikawa Spring Co.: 3 patents #9 of 77Top 15%
UNUnknown: 3 patents #7,366 of 83,584Top 9%
Honda Motor Co.: 2 patents #8,527 of 21,052Top 45%
Sumitomo Electric Industries: 2 patents #9,741 of 21,551Top 50%
Kabushiki Kaisha Toshiba: 2 patents #9,982 of 21,451Top 50%
Kioxia: 2 patents #693 of 1,813Top 40%
Mitsubishi Electric: 2 patents #11,187 of 25,717Top 45%
Fujitsu Limited: 2 patents #10,930 of 24,456Top 45%
Toyota: 1 patents #15,335 of 26,838Top 60%
HDHitachi Denshi: 1 patents #119 of 275Top 45%
ICIdemitsu Petrochemical Co.: 1 patents #305 of 578Top 55%
KOKonica: 1 patents #1,290 of 1,958Top 70%
MCMitsui Mining & Smelting Co.: 1 patents #444 of 838Top 55%
OGOsaka Prefectural Government: 1 patents #18 of 63Top 30%
ACAsahi Kasei Kogyo Co.: 1 patents #565 of 1,395Top 45%
Overall (All Time): #34,386 of 4,157,543Top 1%
64 Patents All Time

Issued Patents All Time

Showing 51–64 of 64 patents

Patent #TitleCo-InventorsDate
5069815 Powder electroluminescent element comprising inorganic electroluminescent particles and a polyurethane binder Yukio Fujishima, Yusuke Makio, Susumu Kusakawa, Sadaaki Tsuji, Tadashi Okamura 1991-12-03
5060069 Electronic still camera with less electric consumption 1991-10-22
4998176 Liner for floppy disk and process for producing the same Sigeru Takemae, Tatsuhiro Kato, Tadakatu Nozawa, Isamu Makihara, Masanori Ito 1991-03-05
4865379 Automotive seat with heating device Kunihiko ITOH 1989-09-12
4832400 Vehicle seat with lumbar support device Yoshihiro Mizushima, Toshiya Kuroyanagi 1989-05-23
D299724 Binoculars 1989-02-07
4692804 Image distortion correcting apparatus for television camera combining global and local corrections Fumio Ukigaya 1987-09-08
4582129 Heat exchanging system Nobuyuki Yano 1986-04-15
4574872 Heat exchanger apparatus Nobuyuki Yano, Takuro Kotera, Toshio Utagawa, Kazufumi Watanabe, Masao Wakai 1986-03-11
4575153 Back frame in a seat back for a vehicle seat Hideo Shimbori 1986-03-11
4571763 Cushion member for a vehicle seat Tomio Suzuyama 1986-02-25
4514869 Top member for a vehicle seat Kunihiko Ito 1985-05-07
4478053 Air-conditioning machine Nobuyuki Yano, Takuro Kotera, Toshio Utagawa 1984-10-23
4304881 Alkenyl aromatic resin composition having an excellent impact strength Toshinori Shiraki, Toshio Ibaragi 1981-12-08