Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025
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Hirohiko Endoh

Ricoh Company: 1 patents #6,936 of 9,818Top 75%
Overall (All Time): #3,282,661 of 4,157,543Top 80%
1 Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
7682844 Silicon substrate processing method for observing defects in semiconductor devices and defect-detecting method Takuya Naoe 2010-03-23