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USPTO Patent Rankings Data through Dec 31, 2025
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Hiroki Kamitake — 6 Patents

Panasonic: 6 patents #4,450 of 21,108Top 25%
Osaka, JP: #6,597 of 24,344 inventorsTop 30%
Overall (All Time): #779,687 of 4,157,543Top 20%
6 Patents All Time
Hiroki Kamitake has been granted 6 US patents while listed as an inventor at Panasonic. The first was granted in 2023 and the most recent in September 2025. Hiroki Kamitake ranks #779,687 of 4,157,543 US inventors in our database (top 18.8%). Patent records list Hiroki Kamitake in Osaka, JP.

Patents per Year

Patents granted per year, 2023 to 2025Bar chart with a peak of 4 patents in 2025.peak 42023: 1 patents20232024: 1 patents20242025: 4 patents2025

Issued Patents All Time

Showing 1–6 of 6 patents

Patent #TitleCo-InventorsDate
12424657 Positive-electrode material and battery IZURU SASAKI, Seiji Nishiyama 2025-09-23
12394820 Positive-electrode material and battery Seiji Nishiyama, IZURU SASAKI 2025-08-19
12308425 Positive-electrode material and battery Seiji Nishiyama, IZURU SASAKI 2025-05-20
12206111 Cathode material and battery using same Akihiro Sakai, IZURU SASAKI, YUTA SUGIMOTO, Akinobu Miyazaki 2025-01-21
12062754 Battery TATSUYA OSHIMA, IZURU SASAKI, Akira Kawase 2024-08-13
11682764 Cathode material and battery using same Akihiro Sakai, IZURU SASAKI, YUTA SUGIMOTO, Akinobu Miyazaki 2023-06-20

Frequent Collaborators

IZURU SASAKI6 shared
Seiji Nishiyama3 shared
YUTA SUGIMOTO2 shared
Akihiro Sakai2 shared
Akinobu Miyazaki2 shared
TATSUYA OSHIMA1 shared

Nearby-Ranked Inventors

Aurélien Joulia6
Michael F. Vollero6
Stefano Fracassi6
Uwe Gruenbeck6
Alexander Matrosov6
Rouzbeh Behnia6
Carole Chapelat6
Mina Sedaghat6
Martinus Johannes Donatus Brakkee6