Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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Tsukasa Doi — 39 Patents

Canon: 31 patents #1,745 of 19,416Top 9%
Sharp Kabushiki Kaisha: 8 patents #2,076 of 10,731Top 20%
Tokyo, JP: #2,987 of 90,295 inventorsTop 4%
Overall (All Time): #81,245 of 4,157,543Top 2%
39 Patents All Time
Tsukasa Doi has been granted 39 US patents while listed as an inventor at Canon. The first was granted in 1993 and the most recent in February 2025. Tsukasa Doi ranks #81,245 of 4,157,543 US inventors in our database (top 2.0%). Patent records list Tsukasa Doi in Tokyo, JP.

Patents per Year

Patents granted per year, 1993 to 2025Bar chart with a peak of 6 patents in 2018.peak 61993: 1 patents19931995: 1 patents1998: 1 patents19981999: 1 patents2001: 1 patents20012008: 1 patents2013: 2 patents20132014: 3 patents2016: 2 patents20162017: 1 patents2018: 6 patents20182019: 2 patents2020: 2 patents20202021: 4 patents2022: 4 patents20222023: 4 patents2024: 2 patents20242025: 1 patents2025

Issued Patents All Time

Showing 1–25 of 39 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
12236297 Image processing method, image processing apparatus and storage medium generating a first dot pattern and a second dot pattern printed to overlap the first dot pattern by quantizing image data based on a threshold matrix Hirokazu Tanaka, Satoshi Seki, Junichi Nakagawa, Mayuko Yamagata 2025-02-25
11948026 Dither pattern forming method, image processing apparatus, and image processing method Junichi Nakagawa, Hirokazu Tanaka, Mayuko Yamagata, Satoshi Seki 2024-04-02
11893288 Threshold matrix generating method Junichi Nakagawa, Hirokazu Tanaka, Mayuko Yamagata, Satoshi Seki 2024-02-06
11842234 Image processing method, image processing apparatus and storage medium Hirokazu Tanaka, Satoshi Seki, Junichi Nakagawa, Mayuko Yamagata 2023-12-12
11625563 Image processing method, image processing apparatus and storage medium Hirokazu Tanaka, Satoshi Seki, Junichi Nakagawa, Mayuko Yamagata 2023-04-11
11573750 Threshold matrix generating method Junichi Nakagawa, Hirokazu Tanaka, Mayuko Yamagata, Satoshi Seki 2023-02-07 $31,000
11565527 Printing method and printing apparatus Hirokazu Tanaka, Junichi Nakagawa, Mayuko Yamagata, Satoshi Seki 2023-01-31 $32,000
11443399 Image processing apparatus for generating multiplexed information in which information is embedded in an image Hiroaki Ogawa, Yoshinori Mizoguchi, Fumitaka Goto, Hiroyuki Sakai, Hiromitsu Yamaguchi +1 more 2022-09-13 $38,000
11334778 Dither pattern forming method, image processing apparatus, and image processing method Junichi Nakagawa, Hirokazu Tanaka, Mayuko Yamagata, Satoshi Seki 2022-05-17 $36,000
11267240 Inkjet printing apparatus, printing method, and storage medium Hiromitsu Yamaguchi, Akitoshi Yamada 2022-03-08 $40,000
11245810 Image processing apparatus, method, and program product for embedding corresponding information in an area overlapping a recognized object Yoshinori Mizoguchi, Hiroaki Ogawa, Fumitaka Goto, Hiroyuki Sakai, Hiromitsu Yamaguchi +1 more 2022-02-08 $44,000
11141992 Inkjet printing apparatus, printing method, and storage medium Hiromitsu Yamaguchi, Akitoshi Yamada 2021-10-12 $44,000
11115564 Image processing apparatus, image processing method, and storage medium Hiromitsu Yamaguchi, Akitoshi Yamada 2021-09-07 $47,000
11020965 Printing apparatus and print head heating method Daisuke Kobayashi, Kenichi Oonuki, Satoshi Seki 2021-06-01 $42,000
10946646 Recording apparatus and control method therefor Kenichi Oonuki, Daisuke Kobayashi, Satoshi Seki 2021-03-16 $37,000
10769506 Image processing apparatus and image processing method quantizing gradation data to have a smaller number of gradations Hirokazu Tanaka, Hisashi Ishikawa, Shoei Moribe, Yusuke Yamamoto, Shigeo Kodama +1 more 2020-09-08 $24,000
10771657 Image processing apparatus and image processing method quantizing first and second gradation data to generate first and second quantization data Hirokazu Tanaka, Hisashi Ishikawa, Shoei Moribe, Yusuke Yamamoto, Shigeo Kodama +1 more 2020-09-08 $24,000
10484576 Image processing apparatus and method to generate recording data Fumiko Suzuki, Mayuko Yamagata, Hirokazu Tanaka, Tomoyuki Tenkawa 2019-11-19 $22,000
10225439 Image printing apparatus and image printing method Fumiko Suzuki, Mayuko Yamagata, Satoshi Seki, Hirokazu Tanaka, Gou Sasaki +1 more 2019-03-05 $29,000
10029475 Recording head and inkjet recording apparatus Fumiko Suzuki, Hirokazu Tanaka 2018-07-24 $28,000
10022980 Recording head and inkjet recording apparatus Hirokazu Tanaka, Fumiko Suzuki 2018-07-17 $22,000
9962950 Recording apparatus and recording method Mayuko Yamagata, Satoshi Seki, Hirokazu Tanaka, Gou Sasaki, Fumiko Suzuki +1 more 2018-05-08 $25,000
9888149 Image printing apparatus and image printing method Fumiko Suzuki, Mayuko Yamagata, Satoshi Seki, Hirokazu Tanaka, Gou Sasaki +1 more 2018-02-06 $38,000
9862214 Recording apparatus for reducing discharge position deviation of discharged ink, and recording method for the same Fumiko Suzuki, Hirokazu Tanaka, Gou Sasaki, Satoshi Seki, Mayuko Yamagata +1 more 2018-01-09 $39,000
9855774 Recording apparatus and recording method Satoshi Seki, Kiichiro Takahashi, Hirokazu Tanaka, Fumiko Suzuki, Gou Sasaki +1 more 2018-01-02 $38,000