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

Hui Chen — 7 Patents

Nsk: 6 patents #247 of 1,559Top 20%
MAMacroblock: 1 patents #37 of 72Top 55%
Maebashi, JP: #71 of 470 inventorsTop 20%
Overall (All Time): #680,018 of 4,157,543Top 20%
7 Patents All Time
Hui Chen has been granted 7 US patents while listed as an inventor at Nsk. The first was granted in 2002 and the most recent in April 2005. Hui Chen ranks #680,018 of 4,157,543 US inventors in our database (top 16.4%). Patent records list Hui Chen in Maebashi, JP.

Patents per Year

Patents granted per year, 2002 to 2005Bar chart with a peak of 4 patents in 2002.peak 42002: 4 patents20022003: 1 patents20032004: 1 patents20042005: 1 patents2005

Issued Patents All Time

Showing 1–7 of 7 patents

Patent #TitleCo-InventorsDate
6876911 Controller for motor power steering system Shuji Endo 2005-04-05
6691818 Control unit for electric power steering apparatus Shuji Endo 2004-02-17
6545889 Transformerless AC/DC converting control circuit Te-Cheng Chen, Johnny Yang 2003-04-08
6469463 Brushless motor and driving control device therefor Shuji Endo 2002-10-22
6407524 Control apparatus for an electrical power steering apparatus Shuji Endo 2002-06-18
6400108 Brushless DC-motor driving controller Koji Matsuda, Toshiyuki Onizuka 2002-06-04
6400116 Motor drive control apparatus Kouji Matsuda 2002-06-04