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

Naoki Marui — 11 Patents

NTNtn: 11 patents #149 of 1,364Top 15%
Iwata, JP: #105 of 782 inventorsTop 15%
Overall (All Time): #435,149 of 4,157,543Top 15%
11 Patents All Time
Naoki Marui has been granted 11 US patents while listed as an inventor at Ntn. The first was granted in 2019 and the most recent in January 2024. Naoki Marui ranks #435,149 of 4,157,543 US inventors in our database (top 10.5%). Patent records list Naoki Marui in Iwata, JP.

Patents per Year

Patents granted per year, 2019 to 2024Bar chart with a peak of 4 patents in 2021.peak 42019: 2 patents20192020: 1 patents20202021: 4 patents20212022: 3 patents20222024: 1 patents2024

Issued Patents All Time

Showing 1–11 of 11 patents

Patent #TitleCo-InventorsDate
11865718 Working device using parallel link mechanism and control method thereof Hiroshi Isobe 2024-01-09
11420322 Working device and double-arm type working device Kenzou Nose, Hiroshi Isobe 2022-08-23
11298814 Link actuating device having a proximal-end-side link hub, a distal-end-side link hub, and three or more link mechanisms Hiroshi Isobe, Seigo Sakata, Kenzou Nose 2022-04-12
11247333 Work device using parallel link mechanism Hiroshi Isobe 2022-02-15
11154983 Link actuation device manipulating device and link actuation system Hiroshi Isobe, Seigo Sakata 2021-10-26
11154994 Work device and dual-arm work device Hiroshi Isobe, Kenzou Nose, Hiroyuki Yamada 2021-10-26
11130229 Link operating device control device and control method Seigo Sakata, Yuuki Shimura, Hiroshi Isobe 2021-09-28
11130225 Working device and double-arm type working device Hiroshi Isobe, Kenzou Nose, Hiroyuki Yamada 2021-09-28
10828779 Diagnostic device for link actuation device Hiroshi Isobe, Yukihiro Nishio, Seigo Sakata 2020-11-10
10513028 Composite work device using link operating device Hiroshi Isobe, Seigo Sakata, Kenzou Nose 2019-12-24
10391641 Combination type link actuation device Naoya Konagai, Hiroshi Isobe, Seigo Sakata, Kenzou Nose 2019-08-27