Hisashi MAEHARA has been granted 12 US patents while listed as an inventor at Nichia . The first was granted in 2020 and the most recent in September 2025. Hisashi MAEHARA ranks #396,045 of 4,157,543 US inventors in our database (top 9.5%). Patent records list Hisashi MAEHARA in 北島町, JP.
Patents per Year Patents granted per year, 2020 to 2025 Bar chart with a peak of 4 patents in 2025. peak 4 2020: 1 patents 2020 2021: 1 patents 2021 2023: 3 patents 2023 2024: 3 patents 2024 2025: 4 patents 2025 Issued Patents All Time
Showing 1–12 of 12 patents
Patent # Title Co-Inventors Date Approx Value ⓘ
12406784 Method of producing bonded magnet comprising SmFeN-based anisotropic magnetic powder — 2025-09-02
12322542 Rare earth magnet and production method thereof Masaaki Ito , Reimi Tabuchi , Motoki Hiraoka 2025-06-03
12217907 Rare-earth magnet and method of manufacturing the same Masaaki Ito , Daisuke Ichigozaki , Noritsugu Sakuma , Akihito KINOSHITA , Michiya Kume 2025-02-04
12191059 Rare earth magnet and production method thereof Masaaki Ito , Motoki Hiraoka , Reimi Tabuchi , Michiya Kume 2025-01-07
12027306 Method of producing SmFeN-based rare earth magnet Michiya Kume , Masaaki Ito 2024-07-02
12027294 Method of producing SmFeN-based rare earth magnet Masaaki Ito 2024-07-02
11990260 Rare earth magnet and production method thereof Masaaki Ito , Motoki Hiraoka , Reimi Tabuchi , Masanori Okanan 2024-05-21
$1,733,000
11685654 Secondary particles for anisotropic magnetic powder — 2023-06-27
11676748 Anisotropic magnetic powders and method of producing the same — 2023-06-13
11594352 Method of producing magnetic powder — 2023-02-28
11167987 Secondary particles for anisotropic magnetic powder and method of producing anisotropic magnetic powder — 2021-11-09
10867728 Method of producing anisotropic magnetic powder — 2020-12-15
