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

Kazuyoshi Iimura — 3 Patents

UNUnknown: 4 patents #4,220 of 83,584Top 6%
MLMitsubishi Petrochemical Company Limited: 2 patents #172 of 670Top 30%
TOTosoh: 1 patents #576 of 1,042Top 60%
Sayama, JP: #257 of 817 inventorsTop 35%
Overall (All Time): #1,328,092 of 4,157,543Top 35%
3 Patents All Time
Kazuyoshi Iimura has been granted 3 US patents while listed as an inventor at Unknown. The first was granted in 1988 and the most recent in April 1992. Kazuyoshi Iimura ranks #1,328,092 of 4,157,543 US inventors in our database (top 31.9%). Patent records list Kazuyoshi Iimura in Sayama, JP.

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
5102973 Conjugated system-containing organic high molecular compound Seiji Ujiie, Mitsutaka Miyabayashi 1992-04-07
5093025 Cholesteric liquid crystal polyester containing optically active group Naoyuki Koide, Kazutaka Taki 1992-03-03
4786709 Organic high molecular liquid crystals Naoyuki Koide, Mitsutaka Miyabayashi 1988-11-22