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

Hajime Nagai — 21 Patents

Canon: 16 patents #4,179 of 19,416Top 25%
TLTpo Hong Kong Holding Limited: 2 patents #11 of 61Top 20%
TPTechnology Partners: 1 patents #74 of 201Top 40%
KCKunshan Go-Visionox Opto-Electronics Co.: 1 patents #185 of 390Top 50%
WOWuhan China Star Optoelectronics: 1 patents #1 of 17Top 6%
U.S. Philips: 1 patents #4,149 of 8,851Top 50%
Overall (All Time): #201,324 of 4,157,543Top 5%
21 Patents All Time
Hajime Nagai has been granted 21 US patents while listed as an inventor at Canon. The first was granted in 1999 and the most recent in November 2025. Hajime Nagai ranks #201,324 of 4,157,543 US inventors in our database (top 4.8%). Patent records list Hajime Nagai in 安丰镇, CN.

Patents per Year

Patents granted per year, 1999 to 2024Bar chart with a peak of 3 patents in 2017.peak 31999: 1 patents19992009: 1 patents2010: 1 patents20102011: 1 patents2012: 1 patents20122015: 1 patents2017: 3 patents20172018: 3 patents2019: 1 patents20192021: 2 patents2022: 1 patents20222023: 3 patents2024: 1 patents2024

Issued Patents All Time

Showing 1–21 of 21 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
12481851 Printing apparatus and identification method Keiichi Kuriyama, Hidehiko Kanda, Satoshi Wada, Fumihiro Goto, Shingo Nishioka +2 more 2025-11-25
11902488 Image processing apparatus, image processing method, and storage medium for improving the quality of printed edges Satoshi Wada, Yoshinori Nakajima, Hidehiko Kanda, Takeshi Yazawa, Shingo Nishioka +2 more 2024-02-13
11840079 Inkjet printing apparatus and control method thereof Keiji Kuriyama, Satoshi Wada, Hidehiko Kanda, Yoshinori Nakajima, Takeshi Yazawa +1 more 2023-12-12
11813853 Printing apparatus, control method, and conveyance apparatus Hiroshi Kawafuji, Hiroshi Taira, Kazuhiko Sato, Taku Yokozawa, Noboru Kunimine +10 more 2023-11-14
11766882 Printing apparatus and image processing apparatus Yuji Konno, Satoshi Wada, Naoko Baba, Shingo Nishioka, Kei Yoshizawa +2 more 2023-09-26
11504984 Printing apparatus and control method Takeshi Yazawa, Yuji Konno, Hidehiko Kanda, Shingo Nishioka, Keiji Kuriyama +2 more 2022-11-22 $40,000
10940696 Printing apparatus and printing method for obtaining color data defining discharging/non-discharging of an ink of a color to a pixel on a printing medium Yasunori Fujimoto 2021-03-09 $68,000
10896933 Display substrate and manufacturing method thereof Hirayama Hideo 2021-01-19
10321017 Image processing apparatus for improving image sharpness according to the output condition, image processing method and program Naoya Takesue, Hisashi Ishikawa, Tomokazu Yanai, Hiroyuki Sakai, Yoshinori Nakajima +1 more 2019-06-11 $24,000
10013919 Scanning drive circuit and organic light-emitting display Nan Yang, Siming Hu, Tingting Zhang, Xiaobao Zhang, Xiuqi Huang 2018-07-03
9924068 Converting image data for printing Yoshinori Nakajima, Yumi Shimokodachi, Hiroyuki Sakai, Tomokazu Yanai, Naoya Takesue +1 more 2018-03-20 $36,000
9889649 Printing control device, printing control method, and storage medium Naoko Baba 2018-02-13 $33,000
9787874 Image processing apparatus with sharpness determination, information processing apparatus, and methods therefor Naoya Takesue, Hisashi Ishikawa, Tomokazu Yanai, Hiroyuki Sakai, Yoshinori Nakajima +1 more 2017-10-10 $42,000
9781289 Image processing apparatus, method, and storage medium storing program Yumi Shimokodachi, Yoshinori Nakajima, Hiroyuki Sakai, Naoya Takesue, Tomokazu Yanai 2017-10-03 $37,000
9747533 Image processing apparatus and image processing method Yoshinori Nakajima 2017-08-29 $52,000
9210297 Method for determining color correction parameter for recording apparatus Katsushi Hara, Naoko Baba 2015-12-08 $39,000
8201919 Ink-jet printing apparatus and method of controlling ink-jet printing apparatus Yoshito Mizoguchi, Hirokazu Yoshikawa, Yuji Konno, Daisaku Ide 2012-06-19 $151,000
8026888 Voltage supplying device Hirofumi Watsuda 2011-09-27
7798593 Ink jet printing apparatus and method for controlling temperature of the same Masaki Nitta 2010-09-21 $345,000
7545172 Voltage converter apparatus 2009-06-09
5935265 Scan path circuit permitting transition between first and second sets of check data 1999-08-10