Seiyo Hirano has been granted 18 US patents while listed as an inventor at Mazda Motor . The first was granted in 1994 and the most recent in April 2025. Seiyo Hirano ranks #245,716 of 4,157,543 US inventors in our database (top 5.9%). Patent records list Seiyo Hirano in Aki, JP.
Patents per Year Patents granted per year, 1994 to 2025 Bar chart with a peak of 5 patents in 2022. peak 5 1994: 1 patents 1994 1995: 1 patents 1995 2013: 1 patents 2013 2020: 1 patents 2020 2021: 1 patents 2021 2022: 5 patents 2022 2023: 4 patents 2023 2024: 2 patents 2024 2025: 2 patents 2025 Issued Patents All Time
Showing 1–18 of 18 patents
Patent # Title Co-Inventors Date Approx Value ⓘ
12280646 Vehicle drive device Isao Toda , Kei Yonemori , Hideki Sanai 2025-04-22
12214666 Vehicle driving apparatus Isao Toda , Kei Yonemori , Satoshi Maruyama , Shinji Fujihira , Wataru Kuwahara +4 more 2025-02-04
11958467 Hybrid driving apparatus Isao Toda , Hideki Sanai 2024-04-16
$205,000
11938801 Vehicle drive device Isao Toda , Kei Yonemori , Hideki Sanai 2024-03-26
$179,000
11738630 Vehicle in-wheel drive motor and a body side drive motor Isao Toda , Kei Yonemori , Hideki Sanai 2023-08-29
$154,000
11718168 Vehicle drive device Isao Toda , Kei Yonemori , Hideki Sanai 2023-08-08
$172,000
11691496 Vehicle drive system Akihiro Furukawa , Ikuo USAMI , Kazuya Kotani 2023-07-04
11643065 Vehicle drive system Akihiro Furukawa , Ikuo USAMI 2023-05-09
$188,000
11427067 Vehicle drive device Isao Toda , Kei Yonemori , Hideki Sanai 2022-08-30
$134,000
11364783 Hybrid driving apparatus that selectively causes main driving electric motor and sub-driving electric motors to generate forces depending on traveling mode and traveling status of vehicle Isao Toda , Hideki Sanai 2022-06-21
$117,000
11351876 Vehicle power supply system Akihiro Furukawa , Hideki Sanai 2022-06-07
$164,000
11345242 Vehicle drive system Akihiro Furukawa , Hideki Sanai 2022-05-31
$109,000
11230183 Vehicle drive system Akihiro Furukawa , Hideki Sanai 2022-01-25
$190,000
11173858 Vehicle power supply system Akihiro Furukawa , Hideki Sanai 2021-11-16
$253,000
10576983 Vehicle system Masaru Takase , Ryohei YASUTOMI , Hisanobu OKADA , Setsuya Kishimura , Takeshi Yabuki +2 more 2020-03-03
$254,000
8433502 Control method and control device for engine Kunitomo Minamitani , Katsumasa Yoshida , Akitomo Kume , Hideki Sanai , Kazuya Kotani 2013-04-30
$867,000
5414645 Method of fault diagnosis in an apparatus having sensors — 1995-05-09
$40,000
5309436 Multiplex transmission system for vehicles Kunihiko Matumura , Satoru Kawasoe 1994-05-03
$141,000
