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Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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Hirobumi Katoh — 2 Patents

IBM: 2 patents #32,909 of 70,183Top 50%
Yamato, JP: #516 of 1,051 inventorsTop 50%
Overall (All Time): #1,709,992 of 4,157,543Top 45%
2 Patents All Time
Hirobumi Katoh has been granted 2 US patents while listed as an inventor at IBM. The first was granted in 1996 and the most recent in March 1999. Hirobumi Katoh ranks #1,709,992 of 4,157,543 US inventors in our database (top 41.1%). Patent records list Hirobumi Katoh in Yamato, JP.

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
5880447 Data output controller and data output system using this output controller Narihiko Okada, Yoshio Kurishita, Tetsuo Kanno 1999-03-09
5524989 Print element assignment in printing apparatus Yoshikazu Ichioka, Hiroshi Ohmichi 1996-06-11 $10,629,000