Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025
RK

Ryotaro Kachu

Denso: 9 patents #1,418 of 11,792Top 15%
Toyota: 8 patents #3,629 of 26,838Top 15%
HCHitachi Cable: 2 patents #313 of 1,086Top 30%
Overall (All Time): #467,566 of 4,157,543Top 15%
11 Patents All Time

Issued Patents All Time

Showing 1–11 of 11 patents

Patent #TitleCo-InventorsDate
7980606 Vehicle bumper structure Hiroyuki Takahashi, Yujiro Miyata, Tetsuya Takafuji, Shigenori Kobayashi, Yasuyuki Hishida 2011-07-19
7952469 Collision detection device and method of manufacturing the same Akira Suzuki, Hiroyuki Takahashi, Yujiro Miyata, Motomi Iyoda 2011-05-31
7931316 Vehicle bumper structure Hiroyuki Takahashi, Tetsuya Takafuji, Yoji Kobayashi 2011-04-26
7775316 Colliding object determination device and collision information detector for vehicle Toshio Hosokawa, Yujiro Miyata, Motomi Iyoda, Hiroyuki Takahashi 2010-08-17
7686358 Vehicular bumper structure Hiroyuki Takahashi, Motomi Iyoda, Yujiro Miyata 2010-03-30
7456382 Load sensor, method of detecting load and pedestrian protection system Takashi Inamoto, Koji Ohtaka, Motomi Iyoda, Yujiro Miyata, Hiroyuki Takahashi 2008-11-25
7373029 Optical fiber impulse sensor fabricating method Morihisa Fukushi, Yasuyuki Hishida, Akira Suzuki, Shigenori Kobayashi, Hiroyuki Takahashi 2008-05-13
7293809 Load sensing device for automobiles Kyojiro Suzuki, Hiroyuki Takahashi, Yujiro Miyata, Motomi Iyoda 2007-11-13
7245812 Structure for connecting optical fiber Takashi Inamoto, Hiroyuki Takahashi, Yujiro Miyata, Motomi Iyoda 2007-07-17
7236866 Vehicular collision object determining system Tetsuya Takafuji, Yoshiyuki Hattori, Hiroyuki Takahashi, Yujiro Miyata, Motomi Iyoda 2007-06-26
7059444 Seat belt device and seat belt device control method 2006-06-13