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

Tatsuyoshi Kajikawa — 3 Patents

TDTdk-Lambda: 2 patents #14 of 36Top 40%
CCCampus Creat Co.: 1 patents #3 of 20Top 15%
UEUniversity Of Electro-Communications: 1 patents #47 of 199Top 25%
Chofu, JP: #182 of 517 inventorsTop 40%
Overall (All Time): #1,328,092 of 4,157,543Top 35%
3 Patents All Time
Tatsuyoshi Kajikawa has been granted 3 US patents while listed as an inventor at Tdk-Lambda. The first was granted in 2009 and the most recent in October 2012. Tatsuyoshi Kajikawa ranks #1,328,092 of 4,157,543 US inventors in our database (top 31.9%). Patent records list Tatsuyoshi Kajikawa in Chofu, JP.

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
8285400 Digital controller for controlling output voltage under large variations in load and supply voltage Kouji Higuchi, Kazushi Nakano, Eiji Takegami, Kazushi Watanabe, Satoshi Tomioka 2012-10-09
8099199 Digital controller Eiji Takegami, Kazushi Watanabe, Satoshi Tomioka, Kouji Higuchi, Kazushi Nakano 2012-01-17
7620462 Robust digital controller and its designing device Kouji Higuchi, Kazushi Nakano, Eiji Takegami, Kazushi Watanabe, Satoshi Tomioka 2009-11-17