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

Masami Ookuma — 1 Patent

DIDic: 1 patents #467 of 844Top 60%
Tokyo, JP: #57,845 of 90,295 inventorsTop 65%
Overall (All Time): #2,406,284 of 4,157,543Top 60%
1 Patents All Time
Masami Ookuma has been granted 1 US patent while listed as an inventor at Dic. All of these patents were granted in 2021. Masami Ookuma ranks #2,406,284 of 4,157,543 US inventors in our database (top 57.9%). Patent records list Masami Ookuma in Tokyo, JP.

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
10950363 Active material for negative electrodes of nonaqueous secondary batteries, and nonaqueous secondary battery Takayuki Miki, Yasuhiro Takada, Shinichi Nonaka, Kiyoo Kamei, Toshinori Nishiyama 2021-03-16