Sonji Ryu — 2 Patents at Nsk | Patent Leaderboard

Sonji Ryu has been granted 2 US patents while listed as an inventor at Nsk. The first was granted in 2024 and the most recent in September 2025. Sonji Ryu ranks #1,709,992 of 4,157,543 US inventors in our database (top 41.1%). Patent records list Sonji Ryu in Fujisawa, JP.

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Showing 1–2 of 2 patents

Patent #	Title	Co-Inventors	Date
12415239	Staking assembly, staking assembly manufacturing method, hub unit bearing, hub unit bearing manufacturing method, automobile, and automobile manufacturing method	Nobuyuki Hagiwara	2025-09-16
12017310	Staking assembly, staking assembly manufacturing method, hub unit bearing, hub unit bearing manufacturing method, automobile, and automobile manufacturing method	Nobuyuki Hagiwara	2024-06-25

Sonji Ryu — 2 Patents

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