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

Junichi Kosugi — 3 Patents

Nec: 2 patents #5,544 of 14,502Top 40%
KKKureha Kagaku Kogyo: 1 patents #332 of 607Top 55%
Tokyo, JP: #36,070 of 90,295 inventorsTop 40%
Overall (All Time): #1,328,092 of 4,157,543Top 35%
3 Patents All Time
Junichi Kosugi has been granted 3 US patents while listed as an inventor at Nec. The first was granted in 1983 and the most recent in April 2005. Junichi Kosugi ranks #1,328,092 of 4,157,543 US inventors in our database (top 31.9%). Patent records list Junichi Kosugi in Tokyo, JP.

Patents per Year

Patents granted per year, 1983 to 2005Bar chart with a peak of 1 patents in 1983.peak 11983: 1 patents19832003: 1 patents20032005: 1 patents2005

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
6879839 Radio communication system 2005-04-12 $23,000
6535740 System and method of controlling transmission electric power in a CDMA base station 2003-03-18 $13,000
4378017 Composite material of de-N-acetylated chitin and fibrous collagen Tadaaki Kato, Masayuki Funabashi 1983-03-29