Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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Tetsuya Numata — 64 Patents

Canon: 64 patents #404 of 19,416Top 3%
Iitate, JP: #3 of 29 inventorsTop 15%
Overall (All Time): #34,494 of 4,157,543Top 1%
64 Patents All Time
Tetsuya Numata has been granted 64 US patents while listed as an inventor at Canon. The first was granted in 2012 and the most recent in December 2025. Tetsuya Numata ranks #34,494 of 4,157,543 US inventors in our database (top 0.83%). Patent records list Tetsuya Numata in Iitate, JP.

Issued Patents All Time

Showing 1–25 of 64 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
12487556 Cartridge and image forming apparatus Noriyuki Komatsu, Masaki Ojima, Daisuke Abe, Tomonori Mori, Takao Tsuda +1 more 2025-12-02
12405565 Cartridge including a developer storage unit for storing developer Takuya Kawakami, Naoya Asanuma, Noriyuki Komatsu 2025-09-02
12158722 Cartridge and image forming apparatus Noriyuki Komatsu, Masaki Ojima, Daisuke Abe, Tomonori Mori, Tadayuki Tsuda +1 more 2024-12-03
12153355 Cartridge used in image forming apparatus Takatoshi Hamada, Noriyuki Komatsu, Daisuke Makiguchi, Naoya Asanuma 2024-11-26
12117763 Development device, process cartridge, and image forming apparatus Hiroaki Nosho, Toru Oguma 2024-10-15
11841647 Cartridge and developing cartridge including a frame and sheet member provided at end side of the frame Takuya Kawakami, Noriyuki Komatsu, Naoya Asanuma, Daisuke Makiguchi 2023-12-12
11762326 Cartridge Takuya Kawakami, Naoya Asanuma, Noriyuki Komatsu 2023-09-19
11733644 Cartridge and image forming apparatus Noriyuki Komatsu, Masaki Ojima, Daisuke Abe, Tomonori Mori, Tadayuki Tsuda +1 more 2023-08-22
D993925 Process cartridge for image forming apparatus Toru Oguma, Naoya Asanuma, Takuya Kawakami, Yohei Kusano, Daisuke Hiramatsu +4 more 2023-08-01
11709438 Cartridge used in image forming apparatus Takatoshi Hamada, Noriyuki Komatsu, Daisuke Makiguchi, Naoya Asanuma 2023-07-25
11703795 Development device, process cartridge, and image forming apparatus Hiroaki Nosho, Toru Oguma 2023-07-18
11480916 Cartridge having toner removing sheet in contact with photosensitive drum Takuya Kawakami, Noriyuki Komatsu, Naoya Asanuma, Daisuke Makiguchi 2022-10-25 $41,000
11435689 Cartridge Takuya Kawakami, Naoya Asanuma, Noriyuki Komatsu 2022-09-06 $29,000
11294299 Cartridge used in image forming apparatus Takatoshi Hamada, Noriyuki Komatsu, Daisuke Makiguchi, Naoya Asanuma 2022-04-05 $45,000
11287772 Development device, process cartridge, and image forming apparatus Hiroaki Nosho, Toru Oguma 2022-03-29 $63,000
11209773 Cartridge and image forming apparatus Noriyuki Komatsu, Masaki Ojima, Daisuke Abe, Tomonori Mori, Tadayuki Tsuda +1 more 2021-12-28 $48,000
11112753 Cartridge with a sheet to remove matter from a surface of a photosensitive drum Takuya Kawakami, Noriyuki Komatsu, Naoya Asanuma, Daisuke Makiguchi 2021-09-07 $47,000
10719030 Manufacturing method of cartridge and cartridge Makoto Hayashida, Naoki Maeda 2020-07-21 $40,000
D889415 Process cartridge for image forming apparatus Toru Oguma, Naoya Asanuma, Takuya Kawakami, Yohei Kusano, Daisuke Hiramatsu +4 more 2020-07-07
10691043 Supporting unit, developer container, developing device, photosensitive member unit, process cartridge and manufacturing method of the supporting unit Naoki Maeda, Makoto Hayashida 2020-06-23 $31,000
10649394 Method of manufacturing frame unit, method of manufacturing image carrying unit, method of manufacturing cartridge, and cartridge Daisuke Makiguchi, Tadashi Horikawa, Naoki Matsumaru, Ryuta Murakami 2020-05-12 $21,000
10606210 Development device, process cartridge, and image forming apparatus Hiroaki Nosho, Toru Oguma 2020-03-31 $26,000
10564597 Method for manufacturing image bearing unit and method for manufacturing cartridge Ryuta Murakami, Daisuke Makiguchi, Naoki Matsumaru, Tadashi Horikawa 2020-02-18 $17,000
10551767 Manufacturing method for developer container, developer container, developing apparatus, and process cartridge Naoya Asanuma, Takatoshi Hamada 2020-02-04 $20,000
10545431 Manufacturing method of cartridge and cartridge Makoto Hayashida, Naoki Maeda, Kayo Mitsugi 2020-01-28 $16,000