RK

Ryoichi Kawasumi

Canon: 42 patents #1,000 of 19,416Top 6%
📍 Ibaraki, JP: #102 of 6,779 inventorsTop 2%
Overall (All Time): #71,886 of 4,157,543Top 2%
42
Patents All Time

Issued Patents All Time

Showing 1–25 of 42 patents

Patent #TitleCo-InventorsDate
12399459 Image forming apparatus Hiroki Takano, Takehiro Ishidate 2025-08-26
12399446 Image forming apparatus including duct structure that supports light emitting elements for exposing a photoconductor Takehiro Ishidate, Hiroki Takano 2025-08-26
12393136 Image forming apparatus that cools an exposure device Hiroki Takano, Takehiro Ishidate, Koji Suzuki 2025-08-19
12386308 Image forming apparatus including exposure unit and exposure cooling unit Takehiro Ishidate, Hiroki Takano 2025-08-12
12298708 Image forming apparatus with cooling configuration Takehiro Ishidate, Hiroki Takano 2025-05-13
12271149 Image forming apparatus Takehiro Ishidate, Hiroki Takano, Koji Suzuki 2025-04-08
12253810 Image forming apparatus Takehiro Ishidate, Hiroki Takano 2025-03-18
12164240 Image forming apparatus including retractable exposure portion Takehiro Ishidate, Hiroki Takano 2024-12-10
12155799 Input device having a near-field detection substrate positioned relative to a touch panel Yoshiyuki Nakayama 2024-11-26
12105461 Image forming apparatus having removable fixing portion and filter holder 2024-10-01
12066766 Image forming apparatus including duct structure that supports light emitting elements for exposing a photoconductor Takehiro Ishidate, Hiroki Takano 2024-08-20
12055869 Image forming apparatus that cools an exposure device Hiroki Takano, Takehiro Ishidate, Koji Suzuki 2024-08-06
12032327 Image forming apparatus Hiroki Takano, Takehiro Ishidate 2024-07-09
11994826 Image forming apparatus Takehiro Ishidate, Hiroki Takano 2024-05-28
11940751 Power feed path unit forming an electrical connecting path for power feeding, image forming apparatus, and assembly method for power feed path unit 2024-03-26
11849088 Image forming apparatus having an operation portion with a near field communication portion, a touch panel, and an input key Yoshiyuki Nakayama 2023-12-19
11835908 Image forming apparatus having a frame body with a first frame and a second frame 2023-12-05
11835876 Image forming apparatus having removable duct and filter 2023-12-05
11693360 Image forming apparatus having fan to suck air through a gap between exterior covers 2023-07-04
11601560 Image forming apparatus having an operation portion with a near field communication portion, a touch panel, and an input key Yoshiyuki Nakayama 2023-03-07
11405516 Image forming apparatus having an operation portion with a near field communication portion, a touch panel, and an input key Yoshiyuki Nakayama 2022-08-02
11300919 Image forming apparatus having guide for airflow to filter 2022-04-12
11082571 Image forming apparatus having an operation portion with a near field communication portion, a touch panel, and an input key Yoshiyuki Nakayama 2021-08-03
11022929 Image forming apparatus having guide for airflow through filter 2021-06-01
10990061 Image forming apparatus having a duct free of a filter and a duct with a filter 2021-04-27