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USPTO Patent Rankings Data through Dec 31, 2025
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Harumi Okai — 8 Patents

Denso: 7 patents #1,924 of 11,792Top 20%
SMSuzuki Motor: 1 patents #523 of 1,209Top 45%
Hamamatsu, JP: #689 of 3,044 inventorsTop 25%
Overall (All Time): #600,572 of 4,157,543Top 15%
8 Patents All Time
Harumi Okai has been granted 8 US patents while listed as an inventor at Denso. The first was granted in 1990 and the most recent in January 2010. Harumi Okai ranks #600,572 of 4,157,543 US inventors in our database (top 14.4%). Patent records list Harumi Okai in Hamamatsu, JP.

Issued Patents All Time

Showing 1–8 of 8 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
7640966 Heat exchanger and cooling module having the same Akihiro Maeda, Yoshihiko Kamiya, Noriaki Maeda, Masami Tamura 2010-01-05 $295,000
7331413 Front-end structure of vehicle Toshiki Sugiyama, Ikuo Ozawa 2008-02-19 $584,000
6869131 Vehicle front end structure Kazuaki Kafuku 2005-03-22 $263,000
6708790 Front-end structure of a vehicle Ikuo Ozawa, Toshiki Sugiyama, Norihisa Sasano, Noriaki Maeda, Kazuaki Kafuku +5 more 2004-03-23
6676283 Front end structure and headlamp system of automotive vehicle Ikuo Ozawa, Noriaki Maeda, Norihisa Sasano, Toshiki Sugiyama, Hiroaki Okuchi +2 more 2004-01-13
6660969 Internal combustion engine device Ikuo Ozawa, Kazuaki Kafuku, Noriaki Maeda, Toshiki Sugiyama, Norihisa Sasano 2003-12-09
6648399 Front end panel Ikuo Ozawa, Toshiki Sugiyama 2003-11-18
4946219 Roof side sealing mechanism for automotive vehicle having a hood attached thereto Yukiya Takada 1990-08-07