Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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Nobuo Oshima — 33 Patents

Canon: 27 patents #2,148 of 19,416Top 15%
RCRheon Automatic Machinery Co.: 3 patents #20 of 90Top 25%
MEMeidensha: 1 patents #255 of 555Top 50%
NCNitto Electric Industrial Co.: 1 patents #106 of 298Top 40%
Sony: 1 patents #17,321 of 25,231Top 70%
Tokyo, JP: #3,872 of 90,295 inventorsTop 5%
Overall (All Time): #105,480 of 4,157,543Top 3%
33 Patents All Time
Nobuo Oshima has been granted 33 US patents while listed as an inventor at Canon. The first was granted in 1981 and the most recent in November 2025. Nobuo Oshima ranks #105,480 of 4,157,543 US inventors in our database (top 2.5%). Patent records list Nobuo Oshima in Tokyo, JP.

Patents per Year

Patents granted per year, 1981 to 2025Bar chart with a peak of 4 patents in 2025.peak 41981: 1 patents19811991: 1 patents2005: 3 patents20052006: 1 patents2009: 1 patents20092010: 1 patents2014: 2 patents20142015: 3 patents2016: 2 patents20162017: 1 patents2018: 3 patents20182020: 3 patents2021: 1 patents20212022: 3 patents2023: 1 patents20232024: 2 patents2025: 4 patents2025

Issued Patents All Time

Showing 1–25 of 33 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
12468253 Image forming apparatus Shohei Matsushita, Takaya Sato 2025-11-11
12298696 Image forming apparatus Takahiro Kawamoto, Hideo Kihara, Takashi Mukai, Takuya Kitamura 2025-05-13
12271140 Brush having a higher contact pressure with an image bearing member at an upstream end of the brush and image forming apparatus Takayuki Kanazawa, Takayoshi Kihara, Kuniaki Tamagaki, Shuhei Tokiwa, Taichi Sato 2025-04-08
12242209 Image forming apparatus Takashi Mukai, Shuhei Kawasaki, Hideo Kihara, Takahiro Kawamoto, Takayuki Kanazawa 2025-03-04
12105462 Image forming apparatus Shunsuke Matsushita, Taichi Sato 2024-10-01
11860566 Image forming apparatus Takayuki Kanazawa, Takayoshi Kihara, Kuniaki Tamagaki, Shuhei Tokiwa, Taichi Sato 2024-01-02
11829087 Image forming apparatus with image bearing members having different surface layer thicknesses Hiroki Tanaka, Satoru Motohashi, Akihisa Matsukawa, Katsuichi Abe, Takayuki Namiki 2023-11-28
11526103 Image forming apparatus capable of suppressing image defect due to foreign matter Hiroki Tanaka, Satoru Motohashi, Akihisa Matsukawa, Katsuichi Abe, Takayuki Namiki 2022-12-13 $22,000
11493857 Image forming apparatus Satoshi Sunahara, Satoru Motohashi 2022-11-08 $27,000
11314186 Image forming apparatus having developer conveyance speed control Satoru Motohashi 2022-04-26 $57,000
11003108 Development device, cartridge, and image forming apparatus Satoshi Sunahara 2021-05-11 $43,000
10877396 Image forming apparatus Satoshi Sunahara, Satoru Motohashi 2020-12-29 $51,000
10849327 Apparatus for aligning and positioning pieces of food dough Taro FUKUGAMI, Katsumichi Higuchi 2020-12-01
10534294 Cartridge having cleaning member and image forming apparatus including same 2020-01-14 $21,000
10001726 Developer container, developing device, process cartridge, and image forming apparatus Takayuki Kanazawa, Kazuhisa Shida, Yuta Isobe, Shunsuke Mizukoshi 2018-06-19 $52,000
9897970 Developer container, developing device, process cartridge and image forming apparatus Takayuki Namiki, Masanori Tanaka, Yuta Isobe 2018-02-20 $33,000
9897941 Developing apparatus, process cartridge and image forming apparatus Takayuki Namiki 2018-02-20 $33,000
9678468 Cleaning apparatus, process cartridge, image forming apparatus Yuta Isobe, Takayuki Namiki, Masanori Tanaka, Naoki Hayashi, Shigemi Kamoshida 2017-06-13 $37,000
9408398 Apparatus for aligning and positioning pieces of food dough Hitoshi Kuwabara 2016-08-09
9335697 Image forming apparatus having image bearing member life estimation unit Masahiro Yoshida, Kohei Matsuda, Kuniaki Tamagaki, Koichiro Takashima, Masanori Tanaka +2 more 2016-05-10 $32,000
9057973 Charging member and image forming apparatus Takayuki Namiki 2015-06-16 $42,000
9052628 Image forming apparatus having collecting operation for residual toner Takashi Mukai, Masahiro Yoshida, Koichiro Takashima, Kohei Matsuda, Kuniaki Tamagaki +1 more 2015-06-09 $31,000
9002225 Image forming apparatus with developer feeding control Masahiro Yoshida, Koichiro Takashima, Kohei Matsuda, Kuniaki Tamagaki, Takashi Mukai +1 more 2015-04-07 $43,000
8891983 Image forming apparatus having waste developer control Kuniaki Tamagaki, Masahiro Yoshida, Koichiro Takashima, Kohei Matsuda, Takashi Mukai +1 more 2014-11-18 $35,000
8714078 Apparatus for spacing and aligning pieces of food dough Sadao Ueno, Hitoshi Kuwabara 2014-05-06