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USPTO Patent Rankings Data through Dec 31, 2025
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Masayuki Echizen — 8 Patents

Denso: 6 patents #2,220 of 11,792Top 20%
KCKayaba Industry Co.: 2 patents #82 of 326Top 30%
Kariya, JP: #1,140 of 4,822 inventorsTop 25%
Overall (All Time): #600,572 of 4,157,543Top 15%
8 Patents All Time
Masayuki Echizen has been granted 8 US patents while listed as an inventor at Denso. The first was granted in 2013 and the most recent in September 2025. Masayuki Echizen ranks #600,572 of 4,157,543 US inventors in our database (top 14.4%). Patent records list Masayuki Echizen in Kariya, JP.

Patents per Year

Patents granted per year, 2013 to 2025Bar chart with a peak of 2 patents in 2013.peak 22013: 2 patents20132022: 1 patents20222023: 2 patents20232024: 1 patents20242025: 2 patents2025

Issued Patents All Time

Showing 1–8 of 8 patents

Patent #TitleCo-InventorsDate
12413111 Rotary electric machine Seigo Shinoda 2025-09-09
12231005 Motor equipped with sensor Seigo Shinoda, Naoto Natsume 2025-02-18
12166380 Motor Seigo Shinoda, Naoto Natsume 2024-12-10
11732765 Clutch device Akikazu Uchida, Takumi Sugiura, Akira Takagi 2023-08-22
11658536 Rotary electric machine Seigo Shinoda 2023-05-23
11323002 Rotary electric machine Seigo Shinoda 2022-05-03
8368261 Motor Ikuhito Ishizue, Takuhiro Kondo, Naoto Natsume 2013-02-05
8368262 Motor Ikuhito Ishizue, Takuhiro Kondo, Naoto Natsume 2013-02-05

Frequent Collaborators

Seigo Shinoda5 shared
Naoto Natsume4 shared
Takuhiro Kondo2 shared
Ikuhito Ishizue2 shared
Takumi Sugiura1 shared
Akikazu Uchida1 shared

Nearby-Ranked Inventors

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