Hideji Ito has been granted 6 US patents while listed as an inventor at Ntn . The first was granted in 1989 and the most recent in April 2013. Hideji Ito ranks #779,687 of 4,157,543 US inventors in our database (top 18.8%). Patent records list Hideji Ito in Kuwana, JP.
Patents per Year Patents granted per year, 1989 to 2013 Bar chart with a peak of 1 patents in 1989. peak 1 1989: 1 patents 1989 2006: 1 patents 2006 2009: 1 patents 2009 2011: 1 patents 2011 2012: 1 patents 2012 2013: 1 patents 2013
Issued Patents All Time
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Showing 1–6 of 6 patents
Patent # Title Co-Inventors Date Approx Value ⓘ
8414194 Cylindrical roller bearing — 2013-04-09
8227950 Rolling bearing, spindle support structure of main motor for railway vehicle, and bearing structure Katsunori Sone , Tsukasa Yamakawa , Naoaki Tsuji 2012-07-24
8044544 Rolling bearing, spindle support structure of main motor for railway vehicle, and bearing structure Katsunori Sone , Tsukasa Yamakawa , Naoaki Tsuji 2011-10-25
7503697 Rolling bearing assembly having an improved resistance to electric corrosion Naoaki Tsuji 2009-03-17
$758,000
7097362 Electrocorrosion preventive rolling bearing Kosuke Inukai , Yukihiro Kataoka , Kiyoshi Sato 2006-08-29
$323,000
4856916 Conducting rolling bearing Koji Kametaka , Yukihisa Tsumori 1989-08-15