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USPTO Patent Rankings Data through Sept 30, 2025
KH

Koshi Hamada — 2 Patents

Panasonic: 2 patents #9,678 of 21,108Top 50%
Overall (All Time): #2,281,407 of 4,157,543Top 55%
2 Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
5558508 Reed-type discharge valve arrangement for a hermetic compressor Hiroshi Sasano, Akihiko Kubota 1996-09-24
5554016 Spring configuration for a hermetic compressor discharge valve Hiroshi Sasano, Masao Mangyo, Akihiko Kubota 1996-09-10