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USPTO Patent Rankings Data through Dec 31, 2025
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Yutaka Ukitsu — 11 Patents

COCombi: 11 patents #13 of 161Top 9%
Oshima, JP: #92 of 1,090 inventorsTop 9%
Overall (All Time): #435,149 of 4,157,543Top 15%
11 Patents All Time
Yutaka Ukitsu has been granted 11 US patents while listed as an inventor at Combi. The first was granted in 2004 and the most recent in July 2011. Yutaka Ukitsu ranks #435,149 of 4,157,543 US inventors in our database (top 10.5%). Patent records list Yutaka Ukitsu in Oshima, JP.

Issued Patents All Time

Showing 1–11 of 11 patents

Patent #TitleCo-InventorsDate
7984923 Stroller Toshiro Yoshie, Tokihiko Ikuno, Toru Miyachi 2011-07-26
7661566 Infant carrier with hood Toshiro Yoshie 2010-02-16
7631887 Stroller Toshiro Yoshie, Tokihiko Ikuno, Toru Miyachi 2009-12-15
7513512 Stroller Toshiro Yoshie 2009-04-07
D551598 Rail guard for baby carriage Toshiro Yoshie, Tokihiko Ikuno 2007-09-25
7152772 Diaper bag Toshiro Yoshie, Tokihiko Ikuno 2006-12-26
7090239 Stroller Toshiro Yoshie, Tokihiko Ikuno, Toru Miyachi 2006-08-15
6863296 Guard arm with drink container holding structure and stroller provided with the same Toshiro Yoshie, Tokihiko Ikuno 2005-03-08
6851700 Stroller with a reclining mechanism Toshiro Yoshie, Tokihiko Ikuno 2005-02-08
6719371 Child chair Toshiro Yoshie, Tokihiko Ikuno 2004-04-13
D487189 Knapsack Toshiro Yoshie, Tokihiko Ikuno 2004-03-02