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

Tokimune Kitajima — 3 Patents

Nec: 3 patents #4,217 of 14,502Top 30%
Tokyo, JP: #36,070 of 90,295 inventorsTop 40%
Overall (All Time): #1,328,092 of 4,157,543Top 35%
3 Patents All Time
Tokimune Kitajima has been granted 3 US patents while listed as an inventor at Nec. The first was granted in 1992 and the most recent in October 1995. Tokimune Kitajima ranks #1,328,092 of 4,157,543 US inventors in our database (top 31.9%). Patent records list Tokimune Kitajima in Tokyo, JP.

Patents per Year

Patents granted per year, 1992 to 1995Bar chart with a peak of 1 patents in 1992.peak 11992: 1 patents19921994: 1 patents19941995: 1 patents1995

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
5461555 Flyback converter having a high efficiency irrespective of magnitude of a load Tadasi Kobayasi 1995-10-24 $28,000
5278748 Voltage-resonant DC-DC converter 1994-01-11 $34,000
5168435 Converter Tadashi Kobayashi, Yohsuke Shinada, Teruhisa Sudou, Toshiyuki Kawano, Masahiro Sonoki 1992-12-01 $24,000