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

Kazuo Okada — 293 Patents

Comcast: 120 patents #23 of 4,447Top 1%
AAAruze Gaming America: 104 patents #1 of 127Top 1%
ARAruze: 27 patents #1 of 100Top 1%
Mitsubishi Electric: 22 patents #842 of 25,717Top 4%
ONonsemi: 10 patents #149 of 1,901Top 8%
Honda Motor Co.: 8 patents #2,726 of 21,052Top 15%
SCSanyo Electric Co.: 8 patents #678 of 6,347Top 15%
Fujitsu Limited: 6 patents #5,180 of 24,456Top 25%
SCSanyo Semiconductor Co.: 6 patents #9 of 323Top 3%
MCMabuchi Motor Co.: 4 patents #26 of 228Top 15%
TITakeda Chemical Industries: 3 patents #379 of 1,420Top 30%
ICIwaki Co.: 3 patents #3 of 53Top 6%
ALAruze Gaming (Hong Kong) Limited: 2 patents #8 of 39Top 25%
OROrgano: 2 patents #52 of 167Top 35%
Panasonic: 1 patents #13,316 of 21,108Top 65%
ABAsahi Breweries: 1 patents #26 of 116Top 25%
FSFuji Seal: 1 patents #8 of 32Top 25%
FUFujirebio: 1 patents #93 of 219Top 45%
MKMitsubishi Denki K.K.: 1 patents #164 of 577Top 30%
NTNTT: 1 patents #2,911 of 4,871Top 60%
RTRenesas Technology: 1 patents #1,991 of 3,337Top 60%
SESeta: 1 patents #8 of 20Top 40%
Sumitomo Electric Industries: 1 patents #13,249 of 21,551Top 65%
UIUbe Industries: 1 patents #895 of 1,686Top 55%
UNUnitika: 1 patents #257 of 620Top 45%
WGWms Gaming: 1 patents #246 of 403Top 65%
YUYuasa: 1 patents #36 of 85Top 45%
YCYuasa Battery Co.: 1 patents #32 of 88Top 40%
Tokyo, JP: #14 of 90,295 inventorsTop 1%
Overall (All Time): #1,396 of 4,157,543Top 1%
293 Patents All Time
Kazuo Okada has been granted 293 US patents while listed as an inventor at Comcast. The first was granted in 1981 and the most recent in August 2025. Kazuo Okada ranks #1,396 of 4,157,543 US inventors in our database (top 0.03%). Patent records list Kazuo Okada in Tokyo, JP.

Issued Patents All Time

Showing 1–25 of 293 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
12390746 Simulated moving-bed type chromatographic separation method and simulated moving-bed type chromatographic separation system Masahiro Ogino, Masaki TSURUTA, Kohei Sato, Toshiki Miyajima 2025-08-19
12040295 Semiconductor device with backmetal and related methods Michael J. Seddon, Takashi Noma, Hideaki Yoshimi, Naoyuki Yomoda, Yusheng LIN 2024-07-16 $53,675,000
11839835 Simulated moving-bed type chromatographic separation method and simulated moving-bed type chromatographic separation system Masahiro Ogino, Kohei Sato, Masaki TSURUTA, Toshiki Miyajima 2023-12-12
11735497 Integrated passive device and fabrication method using a last through-substrate via Takashi Noma, Hideyuki Inotsume 2023-08-22 $114,475,000
11728424 Isolation in a semiconductor device Takashi Noma, Yusheng LIN, Hideaki Yoshimi, Shunsuke YASUDA 2023-08-15 $89,239,000
11114402 Semiconductor device with backmetal and related methods Michael J. Seddon, Takashi Noma, Hideaki Yoshimi, Naoyuki Yomoda, Yusheng LIN 2021-09-07 $23,856,000
10839648 Gaming machine Hirobumi Toyoda 2020-11-17
10535585 Integrated passive device and fabrication method using a last through-substrate via Takashi Noma, Hideyuki Inotsume 2020-01-14 $11,369,000
10242533 Gaming machine Hirobumi Toyoda 2019-03-26
10134230 Game information integration system Kengo Takeda 2018-11-20
9928684 Game information integration system Kengo Takeda 2018-03-27
9881463 Gaming machine arranging symbols Masumi Fujisawa, Kenta Kitamura, Susumu MIO, Hidekazu Suzuki 2018-01-30
9865131 Gaming machine having a first display and a second display Masumi Fujisawa, Kenta Kitamura, Kensaku Yoshikawa, Susumu MIO 2018-01-09
9852577 Peripheral device and method of detecting illegal action 2017-12-26
9773368 Gaming machine Jun Hirato, Motomichi Sato, Kenta Kitamura 2017-09-26
9754440 Game information consolidation system 2017-09-05
9728044 Controlling method of a gaming machine Hirobumi Toyoda 2017-08-08
9646446 Game system Jun Fujimoto, Takao Nireki, Kunihiro Manabe, Noritoshi Kukita 2017-05-09
9600955 Gaming machine and gaming method Kenta Kitamura, Masumi Fujisawa, Tatsuya Teranishi, Takeshi Kada 2017-03-21
9589425 Slot machine including a plurality of video reel strips Yoichi Kato, Hiroaki Kashima, Naoya Shirai, Masumi Fujisawa, Hiroki Nakamura +1 more 2017-03-07
9576432 Gaming machine and gaming method Yoichi Kato, Hiroki Nakamura, Masumi Fujisawa 2017-02-21
9520026 Game system Jun Fujimoto, Takao Nireki, Kunihiro Manabe, Noritoshi Kukita 2016-12-13
9483910 Bill processing unit and gaming machine including same 2016-11-01
9443375 Gaming machine 2016-09-13
9401067 Gaming information integration system Kengo Takeda 2016-07-26