Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Techmagic › Eiji Ishiwata
EI

Eiji Ishiwata — 8 Patents

TETechmagic: 2 patents #2 of 7Top 30%
Tokyo, JP: #18,804 of 90,295 inventorsTop 25%
Overall (All Time): #600,572 of 4,157,543Top 15%
8 Patents All Time
Eiji Ishiwata has been granted 8 US patents while listed as an inventor at Techmagic. The first was granted in 2011 and the most recent in November 2025. Eiji Ishiwata ranks #600,572 of 4,157,543 US inventors in our database (top 14.4%). Patent records list Eiji Ishiwata in Tokyo, JP.

Patents per Year

Patents granted per year, 2011 to 2025Bar chart with a peak of 3 patents in 2014.peak 32011: 1 patents20112012: 1 patents20122014: 3 patents20142024: 1 patents20242025: 2 patents2025

Issued Patents All Time

Showing 1–8 of 8 patents

Patent #TitleCo-InventorsDate
12471740 Mounting orientation adjustment stand for cooking container and automatic cooking equipment provided with same Kohei YOKOUCHI, Naoto Watanabe 2025-11-18
12329325 Automated cooking device Yuji SHIRAKI, Shohei Mawatari 2025-06-17
11986131 Automated cooking device Yuji SHIRAKI, Shohei Mawatari 2024-05-21
D720011 Crayon — 2014-12-23
D720012 Crayon — 2014-12-23
D720013 Crayon — 2014-12-23
D659745 Eyewear — 2012-05-15
D647949 Eyewear — 2011-11-01

Frequent Collaborators

Shohei Mawatari2 shared
Yuji SHIRAKI2 shared
Kohei YOKOUCHI1 shared
Naoto Watanabe1 shared

Nearby-Ranked Inventors

Suryatej Gundavelli8
Hajime Yoshizawa8
Takahisa TATEKAWA8
Hye-Jin GONG8
Yang Ji8
Koichi Sekimizu8
Sandeep Rekhi8
Tejas Pradip Rode8
Jonatan Hörder8