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

Akihiko Uchiyama — 54 Patents

Canon: 40 patents #1,100 of 19,416Top 6%
TLTeijin Limited: 11 patents #77 of 1,631Top 5%
KCKowa Company: 2 patents #203 of 562Top 40%
WUWaseda University: 2 patents #53 of 411Top 15%
BHBayer Healthcare: 1 patents #4,623 of 8,007Top 60%
Sharp Kabushiki Kaisha: 1 patents #6,861 of 10,731Top 65%
Shizuoka, JP: #126 of 6,644 inventorsTop 2%
Overall (All Time): #46,969 of 4,157,543Top 2%
54 Patents All Time
Akihiko Uchiyama has been granted 54 US patents while listed as an inventor at Canon. The first was granted in 1994 and the most recent in April 2025. Akihiko Uchiyama ranks #46,969 of 4,157,543 US inventors in our database (top 1.1%). Patent records list Akihiko Uchiyama in Shizuoka, JP.

Patents per Year

Patents granted per year, 1994 to 2025Bar chart with a peak of 5 patents in 1996.peak 51994: 2 patents19941996: 5 patents1997: 4 patents1999: 2 patents19992000: 1 patents2001: 1 patents2002: 2 patents20022003: 3 patents2004: 1 patents2005: 2 patents20052006: 2 patents2007: 2 patents2008: 1 patents20082010: 1 patents2011: 1 patents2012: 3 patents20122013: 1 patents2014: 1 patents2016: 1 patents20162018: 4 patents2019: 4 patents2020: 4 patents20202021: 1 patents2022: 3 patents2023: 1 patents20232025: 1 patents2025

Issued Patents All Time

Showing 1–25 of 54 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
12282278 Image forming apparatus Shuji Saito 2025-04-22
11789392 Image forming apparatus Yoshiki Kudo, Hiroshi Kita, Masaki Shimomura, Takahiro Nakase 2023-10-17
11392068 Image forming apparatus Tohru Saito, Yoshiro Saito, Tomoaki Nakai, Kenta Kamikura, Yuzo Seino 2022-07-19 $29,000
11294315 Image forming apparatus operable in modes having different color gamuts Yoshiki Kudo, Masaki Shimomura 2022-04-05 $45,000
11237510 Image forming apparatus Yoshiki Kudo, Hiroshi Kita, Masaki Shimomura, Takahiro Nakase 2022-02-01 $65,000
11175600 Toner Tetsuya Sano, Tomoaki Nakai, Takashi Kenmoku, Kenta Kamikura, Yuzo Seino 2021-11-16 $52,000
10866554 Image forming apparatus operable in modes having different color gamuts Yoshiki Kudo, Masaki Shimomura 2020-12-15 $39,000
10837835 Colorimetry apparatus and image forming apparatus Tomoaki Nakai 2020-11-17 $27,000
10838342 Image forming apparatus Yoshiki Kudo, Hiroshi Kita, Masaki Shimomura, Takahiro Nakase 2020-11-17 $27,000
10642209 Image forming apparatus operable in modes having different color gamuts Yoshiki Kudo, Masaki Shimomura 2020-05-05 $23,000
10359315 Colorimetry apparatus and image forming apparatus Tomoaki Nakai 2019-07-23 $25,000
10331064 Image forming apparatus Yusuke Hirota, Hisashi Nakahara 2019-06-25 $44,000
10168634 Image forming apparatus capable of setting a parameter used in forming an image based on a detected change in a value of tint 2019-01-01
10168633 Image forming apparatus having image color gamut enlargement mode Hisashi Nakahara 2019-01-01
10041834 Color measuring apparatus, image forming apparatus and color measuring method Tomoaki Nakai, Hitoshi Furukawa 2018-08-07 $32,000
10018939 Electrophotographic or electrostatic recording type image forming apparatus Go Shindo, Norihito Naito, Masataka Mochizuki 2018-07-10 $29,000
10018951 Image forming apparatus with controllable velocity ratio between image and developer bearing members Tohru Saito, Hisashi Nakahara, Go Shindo 2018-07-10 $29,000
9904225 Image forming apparatus Yusuke Hirota, Hisashi Nakahara 2018-02-27 $32,000
9459584 Image forming apparatus Shinsuke Kobayashi, Ken Nakagawa, Tomonori Shida, Kazuhiro Funatani, Hiroshi Kita 2016-10-04 $50,000
8862039 Image forming apparatus Tsuguhiro Yoshida, Hiroyuki Munetsugu, Takaaki Akamatsu, Toshihiko Takayama, Yuya Kojima 2014-10-14 $25,000
8532531 Image forming apparatus comprising a charging unit including plural conductive fibers Masaru Shimura, Masahiro Suzuki, Tsuguhiro Yoshida, Michio Uchida 2013-09-10 $36,000
8203676 Retardation film, laminated polarizing film, and liquid crystal display device Yuhei Ono, Jyuhou Matsuo, Satoshi Kitazawa 2012-06-19
8140059 Portable information terminal device Kei Okuda, Takayuki Mohri 2012-03-20
8111459 Laminated polarizing film, phase retardation film, and liquid crystal display device Yuhei Ono, Jyuho Matsuo 2012-02-07
8029084 Image forming apparatus Tatsuya Kobayashi 2011-10-04 $217,000