Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
KC

Keiichi Chono — 130 Patents

Nec: 127 patents #9 of 14,502Top 1%
Tokyo, JP: #195 of 90,295 inventorsTop 1%
Overall (All Time): #8,439 of 4,157,543Top 1%
130 Patents All Time
Keiichi Chono has been granted 130 US patents while listed as an inventor at Nec. The first was granted in 2010 and the most recent in December 2025. Keiichi Chono ranks #8,439 of 4,157,543 US inventors in our database (top 0.20%). Patent records list Keiichi Chono in Tokyo, JP.

Patents per Year

Patents granted per year, 2010 to 2025Bar chart with a peak of 28 patents in 2024.peak 282010: 2 patents20102011: 1 patents2012: 3 patents20122013: 5 patents2014: 1 patents20142015: 2 patents2016: 10 patents20162017: 2 patents2018: 10 patents20182019: 5 patents2020: 9 patents20202021: 1 patents2022: 9 patents20222023: 25 patents2024: 28 patents20242025: 17 patents2025

Issued Patents All Time

Showing 1–25 of 130 patents

Patent #TitleCo-InventorsDate
12506876 Video decoding device and video encoding device using inter prediction Kenta Senzaki, Yuzo Senda, Hiroyuki Aoki 2025-12-23
12483698 Video coding apparatus, video coding method, video coding program, and non-transitory recording medium Kenta TOKUMITSU, Toshihiko Yanagita 2025-11-25
12462608 Iris recognition apparatus, iris recognition method, computer program and recording medium Yuka Ogino, Ryuichi Akashi 2025-11-04
12396660 Authentication device, authentication method, and recording medium Takashi Shibata, Shoji Yachida, Chisato Funayama, Masato Tsukada, Yuka Ogino +3 more 2025-08-26
12367711 Iris recognition apparatus, iris recognition method, computer program and recording medium Yuka Ogino, Ryuichi Akashi 2025-07-22
12348853 Imaging system, imaging method, control apparatus, computer program and recording medium Yuka Ogino 2025-07-01
12302005 Determination of light amount of illumination of visible light with which the eye part is irradiated such that pupil size satisfies a size condition Masato Tsukada, Chisato Funayama, Yuka Ogino, Hiroshi Imai, Emi Kitagawa +4 more 2025-05-13
12283077 Imaging system, imaging method, and computer readable medium Ryuichi Akashi, Yuka Ogino 2025-04-22
12278954 Video coding device and video coding method Kenta IIDA 2025-04-15
12271454 Authentication system, authentication method, control apparatus, computer program and recording medium Yuka Ogino 2025-04-08
12231778 Illumination control apparatus, method, system, and computer readable medium Ryuichi Akashi, Yuka Ogino, Masato Tsukada 2025-02-18
12223775 Authentication device, authentication method, and recording medium Takashi Shibata, Shoji Yachida, Chisato Funayama, Masato Tsukada, Yuka Ogino +3 more 2025-02-11
12217542 Imaging system, imaging method, and non-temporary computer-readable medium storing imaging program Yuka Ogino 2025-02-04
12219151 Video encoding device performing entropy-encoding process for inter prediction unit partition type syntax Kenta Senzaki, Yuzo Senda, Hirofumi Aoki 2025-02-04
12217548 Authentication device, authentication method, and recording medium Takashi Shibata, Shoji Yachida, Chisato Funayama, Masato Tsukada, Yuka Ogino +3 more 2025-02-04
12198393 Imaging system, imaging method, and computer readable medium Ryuichi Akashi, Yuka Ogino 2025-01-14
12198471 Information providing device, information providing method, and storage medium Masato Tsukada, Chisato Funayama, Ryuichi Akashi, Yuka Ogino, Takashi Shibata +5 more 2025-01-14
12177477 Video encoding or decoding apparatus, video encoding or decoding method, program, and recording medium 2024-12-24
12148247 Information providing device, information providing method, and storage medium Masato Tsukada, Chisato Funayama, Ryuichi Akashi, Yuka Ogino, Takashi Shibata +5 more 2024-11-19
12146787 Optical control apparatus and optical control method Ryuichi Akashi, Ryo Yamakabe, Yuka Ogino, Takahiro TOIZUMI, Chisato Funayama +1 more 2024-11-19
12120437 Image capture device, image capture method, and image capture system 2024-10-15
12059249 Authentication device, authentication method, and recording medium Takashi Shibata, Shoji Yachida, Chisato Funayama, Masato Tsukada, Yuka Ogino +3 more 2024-08-13
12056955 Information providing device, information providing method, and storage medium Masato Tsukada, Chisato Funayama, Ryuichi Akashi, Yuka Ogino, Takashi Shibata +5 more 2024-08-06
12058440 Imaging control system, imaging control method, control device, control method, and storage medium Masato Tsukada, Chisato Funayama, Ryuichi Akashi, Yuka Ogino, Takashi Shibata +5 more 2024-08-06
12039817 Gate system Yuka Ogino, Kazuya Matsumoto 2024-07-16