KO

Kohei Okayasu

Canon: 23 patents #2,685 of 19,416Top 15%
Overall (All Time): #178,063 of 4,157,543Top 5%
23
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
12372905 Image forming apparatus Satoshi Nishida, Takao Kume 2025-07-29
12353154 Image forming apparatus Takao Kume 2025-07-08
12271133 Fixing apparatus and image forming apparatus Takao Kume, Akimichi Suzuki, Satoshi Nishida, Takanori Mitani 2025-04-08
12265340 Image-forming apparatus Takanori Mitani, Takao Kume, Satoshi Nishida, Isamu Takeda 2025-04-01
12019380 Image-forming apparatus Takanori Mitani, Takao Kume, Satoshi Nishida, Isamu Takeda 2024-06-25
11644766 Image forming apparatus that controls voltages to reduce image fogging 2023-05-09
11237504 Image forming apparatus, image forming method, and computer-readable recording medium with program recorded therein Shingo Ito 2022-02-01
11036159 Image forming apparatus for controlling an exposure amount on a surface of a photoconductor Shingo Ito, Masashi Tanaka, Kenichi Iida 2021-06-15
10948857 Image forming apparatus, image forming system, and image forming method each controlling fixing temperature Masashi Tanaka, Shingo Ito 2021-03-16
10656576 Image forming apparatus, image forming system, and image forming method each controlling fixing temperature Masashi Tanaka, Shingo Ito 2020-05-19
10444673 Guide member and image forming apparatus comprising the same Kenji Shindo, Shinsuke Kobayashi, Takaaki Akamatsu, Takehiko Suzuki 2019-10-15
10386755 Image forming apparatus including cleaning operation Shinsuke Kobayashi, Takaaki Akamatsu, Kenji Shindo, Hiroki Sasame 2019-08-20
10222718 Image forming apparatus for duplex operation using potential differences Masashi Tanaka, Sho Taguchi 2019-03-05
10216112 Image forming apparatus Hiroki Sasame, Shinsuke Kobayashi, Takaaki Akamatsu, Kenji Shindo, Takehiko Suzuki +1 more 2019-02-26
10073383 Image forming apparatus including cleaning operation Shinsuke Kobayashi, Takaaki Akamatsu, Kenji Shindo, Hiroki Sasame 2018-09-11
10025236 Transfer roller and image forming apparatus Hiroki Sasame, Shinsuke Kobayashi, Takaaki Akamatsu, Kenji Shindo 2018-07-17
9946216 Image forming apparatus Shinsuke Kobayashi, Takaaki Akamatsu, Kenji Shindo, Hiroki Sasame, Takuya Hayato 2018-04-17
9042800 Fixing device Satoshi Nishida, Hideo Nanataki, Takanori Mitani, Shogo Kan, Takeshi Shinji +1 more 2015-05-26
9014608 Image heating apparatus Satoshi Nishida 2015-04-21
8831493 Image heating apparatus Masashi Tanaka, Kenichi Ogawa, Satoshi Nishida, Shuichi Tetsuno, Shogo Kan +1 more 2014-09-09
8798514 Image fixing appratus for fixing a toner image on a recording material by heating the toner image while feeding the recording material through a nip Masashi Tanaka, Takanori Watanabe, Keisuke Fujita 2014-08-05
8737896 Image forming apparatus for heating a recording material bearing a toner image Keisuke Fujita, Masashi Tanaka 2014-05-27
8285183 Image forming apparatus Satoshi Nishida 2012-10-09