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USPTO Patent Rankings Data through Dec 31, 2025
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Hiroshi Sagara — 3 Patents

JGJgc: 3 patents #35 of 393Top 9%
SCSanraku-Ocean Co.: 1 patents #21 of 40Top 55%
Yokohama, JP: #22,013 of 49,234 inventorsTop 45%
Overall (All Time): #1,328,092 of 4,157,543Top 35%
3 Patents All Time
Hiroshi Sagara has been granted 3 US patents while listed as an inventor at Jgc. The first was granted in 1987 and the most recent in March 1996. Hiroshi Sagara ranks #1,328,092 of 4,157,543 US inventors in our database (top 31.9%). Patent records list Hiroshi Sagara in Yokohama, JP.

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
5500116 Liquid-liquid contactor Takashi Nakayama 1996-03-19
4900873 Method of manufacturing phenols from lignin Gohki Kakemoto, Noriyuki Suzuki, Shogo Kachi 1990-02-13
4680263 Continuous alcohol manufacturing process using immobilized microorganism Tomiaki Yamada, Masuo Kamihonoki, Hiroshi Umino 1987-07-14