Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
IK

Ichiro Kitaura — 28 Patents

PEPascal Engineering: 18 patents #1 of 18Top 6%
ASAioi Seiki: 5 patents #1 of 11Top 10%
PHPascal Holdings: 2 patents #4 of 16Top 25%
TKToyo Boseki Kabushiki Kaisha: 2 patents #343 of 1,085Top 35%
Itami, JP: #88 of 1,436 inventorsTop 7%
Overall (All Time): #134,628 of 4,157,543Top 4%
28 Patents All Time
Ichiro Kitaura has been granted 28 US patents while listed as an inventor at Pascal Engineering. The first was granted in 1982 and the most recent in November 2023. Ichiro Kitaura ranks #134,628 of 4,157,543 US inventors in our database (top 3.2%). Patent records list Ichiro Kitaura in Itami, JP.

Patents per Year

Patents granted per year, 1982 to 2023Bar chart with a peak of 5 patents in 2013.peak 51982: 1 patents19821984: 1 patents1991: 1 patents19911993: 1 patents1995: 1 patents19951996: 1 patents2000: 1 patents20002002: 3 patents2003: 1 patents20032004: 1 patents2005: 2 patents20052006: 1 patents2010: 1 patents20102013: 5 patents2015: 1 patents20152017: 1 patents2019: 3 patents20192020: 1 patents2023: 1 patents2023

Issued Patents All Time

Showing 26–28 of 28 patents

Patent #TitleCo-InventorsDate
5018617 Workpiece pallet changer for machine tools Ichiro Miyata, Keitaro Yonezawa 1991-05-28
4445675 Work-clamping unit for use in machine tools 1984-05-01
4317358 Die lifter unit for pressing or punching machine Keitaro Yonezawa 1982-03-02