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

Keiichi Ueda — 8 Patents

NTNtn: 3 patents #452 of 1,364Top 35%
SCSanyo Electric Co.: 1 patents #3,644 of 6,347Top 60%
Nec: 1 patents #7,928 of 14,502Top 55%
Kammi, JP: #43 of 161 inventorsTop 30%
Overall (All Time): #600,572 of 4,157,543Top 15%
8 Patents All Time
Keiichi Ueda has been granted 8 US patents while listed as an inventor at Ntn. The first was granted in 1998 and the most recent in December 2025. Keiichi Ueda ranks #600,572 of 4,157,543 US inventors in our database (top 14.4%). Patent records list Keiichi Ueda in Kammi, JP.

Patents per Year

Patents granted per year, 1998 to 2018Bar chart with a peak of 2 patents in 2018.peak 21998: 1 patents19982005: 1 patents20052007: 1 patents20072008: 1 patents20082018: 2 patents2018

Issued Patents All Time

Showing 1–8 of 8 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
12492700 Compressor endplate Koji UKAI, Naoto TADA, Ryo AKIMOTO, Tatsuya YASUI, Yuusuke Morita 2025-12-09
12492848 Hermetic type compressor Naoya Morozumi, Naoto TADA 2025-12-09
10047906 Coupler Toru Shimonishi, Tsuyoshi Shimonishi 2018-08-14
9906473 Bearing performance automatic calculation service device Satomi Toyoda, Naoshi Ohashi, Hiroshi Takiuchi 2018-02-27
7374019 Method of and device for lubricating rolling bearings Futoshi Kosugi, Masatsugu Mori 2008-05-20 $332,000
7287910 Angular ball bearing and rolling bearing Umemitsu Kobayashi 2007-10-30 $439,000
6841451 Method of fabricating semiconductor device having alignment mark Yoshio Okayama, Satoru Shimada 2005-01-11 $1,000
5710980 Cell site testing method for portable radio communication system 1998-01-20 $26,000