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

Hiromasa Satoh — 8 Patents

HAHitachi Astemo: 4 patents #182 of 1,276Top 15%
HUHitachi Astemo Ueda: 4 patents #1 of 10Top 10%
MMMitsubishi Motors: 3 patents #352 of 1,823Top 20%
NTNtn: 3 patents #452 of 1,364Top 35%
NCNissin Kogyo Co.: 2 patents #101 of 334Top 35%
TKToyo Garasu Kabushiki Kaisha: 1 patents #4 of 13Top 35%
Hitachinaka, JP: #622 of 2,447 inventorsTop 30%
Overall (All Time): #600,572 of 4,157,543Top 15%
8 Patents All Time
Hiromasa Satoh has been granted 8 US patents while listed as an inventor at Hitachi Astemo. The first was granted in 1982 and the most recent in September 2025. Hiromasa Satoh ranks #600,572 of 4,157,543 US inventors in our database (top 14.4%). Patent records list Hiromasa Satoh in Hitachinaka, JP.

Patents per Year

Patents granted per year, 1982 to 2025Bar chart with a peak of 2 patents in 2022.peak 21982: 1 patents19822019: 1 patents20192020: 1 patents20202022: 2 patents20222023: 2 patents20232025: 1 patents2025

Issued Patents All Time

Showing 1–8 of 8 patents

Patent #TitleCo-InventorsDate
12427968 Electric parking brake control device Sandip Purane, Kazuki Hiroyama, Hiromu NARUKAWA, Yasuhiro Yamamoto, Masato UNO 2025-09-30
11738726 Vehicle brake system Toshihiro Obika, Yusuke Koga, Yasushi Aoki, Hiromitsu Toyota, Haruo Kotera +2 more 2023-08-29
11648917 Vehicle brake system Toshihiro Obika, Yusuke Koga, Hiromitsu Toyota, Haruo Kotera, Tatsuya Yamasaki +1 more 2023-05-16
11427170 Vehicle brake system Toshihiro Obika, Yusuke Koga 2022-08-30
11370401 Vehicle brake system Toshihiro Obika, Yusuke Koga, Hiromitsu Toyota, Haruo Kotera, Tatsuya Yamasaki +1 more 2022-06-28
10851858 Vehicle disc brake Takashi Ono 2020-12-01
10352384 Disc brake device for a vehicle Takashi Ono 2019-07-16
4363649 Apparatus for inspection of glass containers Yoshihiro Yamato, Kazuaki Ogawa, Kiyoshi Chiku, Hideo Okada 1982-12-14