Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025
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Tetsuya Sano — 46 Patents

Canon: 28 patents #2,044 of 19,416Top 15%
LPLenovo (Singapore) Pte.: 8 patents #202 of 1,301Top 20%
FUFujifilm: 2 patents #2,431 of 4,519Top 55%
Fujitsu Limited: 2 patents #10,930 of 24,456Top 45%
ACAisin Aw Co.: 1 patents #1,133 of 2,011Top 60%
Sony: 1 patents #17,262 of 25,231Top 70%
ACAmada Co.: 1 patents #242 of 479Top 55%
Denso: 1 patents #6,940 of 11,792Top 60%
TOToshiba: 1 patents #1,121 of 2,688Top 45%
Overall (All Time): #61,737 of 4,157,543Top 2%
46 Patents All Time

Issued Patents All Time

Showing 26–46 of 46 patents

Patent #TitleCo-InventorsDate
6961533 Image heat apparatus with first and second rotatable members forming nip together with external heating rotatable member Hideki Kotsuka 2005-11-01
6738593 Developing device with developer bearing member overlying developer containing chamber Takeshi Kawamura, Ken Nakagawa, Hikaru Osada, Shuji Moriya, Kenji Kanari 2004-05-18
6654571 Image heating device with temperature sensors provided in sheet passing portion and non-sheet passing portion Hideo Nanataki, Takao Kume, Katsuhito Shiratori, Takashi Nomura 2003-11-25
6347201 Image heating apparatus Masao Umezawa, Hideo Nanataki, Takao Kume, Takashi Nomura 2002-02-12
6343195 Image heating apparatus with core for guiding magnetic flux and temperature sensor to control power supply Atsuyoshi Abe, Hideo Nanataki 2002-01-29
6298215 Image heating apparatus Takashi Nomura, Hideo Nanataki, Takao Kume 2001-10-02
6246843 Image heating apparatus Hideo Nanataki, Hiroshi Mano, Minoru Hayasaki, Takashi Nomura 2001-06-12
6172727 Liquid crystal cell having alignment films rubbed with differing rubbing densities Masaaki Ozaki, Takayuki Fujikawa, Norio Yamamoto 2001-01-09
6072964 Image heating apparatus with temperature detecting means Atsuyoshi Abe, Hideo Nanataki 2000-06-06
6049691 Image heating apparatus Atsuyoshi Abe, Tohru Saito, Hideo Nanataki 2000-04-11
6031215 Image heating device using induction heating for image heating Hideo Nanataki, Koichi Tanigawa, Atsuyoshi Abe 2000-02-29
6014539 Image heating device Hiroki Kisu, Hideo Nanataki, Atsuyoshi Abe 2000-01-11
5970299 Image heating apparatus Koichi Tanigawa, Hideo Nanataki, Atsuyoshi Abe 1999-10-19
5940655 Image heating apparatus Hiroshi Mano, Atsuyoshi Abe, Kiyofumi Nakane 1999-08-17
5918096 Image transfer apparatus Koichi Tanigawa, Hideo Nanataki, Atsuyoshi Abe 1999-06-29
5881349 Image induction heating apparatus Hideo Nanataki, Hiroki Kisu, Atsuyoshi Abe 1999-03-09
5798813 Liquid crystal cell and method for producing the same in which a liquid crystal inlet port opening width is larger than an effective display area width Nobuhiko Ohashi, Takeshi Kohama 1998-08-25
5765077 Charging member, charging device and process cartridge detachably mountable to image forming apparatus Kazushige Sakurai, Junichi Kato, Kouichi Suwa, Masaki Ojima, Hiroshi Sato +1 more 1998-06-09
5682585 Developing apparatus generating electric field between developer carrying member and developer layer regulating member Seiji Yamaguchi, Takahiro Inoue, Kazushige Sakurai, Junichi Kato, Kouichi Suwa +4 more 1997-10-28
5475471 Changing member having a charging surface arranged with respect to a tangent line Hiroki Kisu, Kazushige Sakurai, Michihito Yamazaki, Erika Asano, Satoru Inami +1 more 1995-12-12
4538065 Stroboscopic scanning electron microscope Motosuke Miyoshi 1985-08-27