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

Bunta Narukawa — 8 Patents

FUFujikoki: 7 patents #18 of 156Top 15%
Tokyo, JP: #18,804 of 90,295 inventorsTop 25%
Overall (All Time): #600,572 of 4,157,543Top 15%
8 Patents All Time
Bunta Narukawa has been granted 8 US patents while listed as an inventor at Fujikoki. The first was granted in 2015 and the most recent in December 2025. Bunta Narukawa ranks #600,572 of 4,157,543 US inventors in our database (top 14.4%). Patent records list Bunta Narukawa in Tokyo, JP.

Patents per Year

Patents granted per year, 2015 to 2025Bar chart with a peak of 3 patents in 2019.peak 32015: 1 patents20152019: 3 patents20192020: 2 patents20202025: 2 patents2025

Issued Patents All Time

Showing 1–8 of 8 patents

Patent #TitleCo-InventorsDate
12504091 Electric valve control device and electric valve device Yusuke Ishizuka, Kazuo Ogiwara 2025-12-23
12392420 Electric valve Yuta Hosaka, Yuta Yasumoto 2025-08-19
D886950 Motor valve Satoshi Uehara, Yusuke Arai, Takeshi Hosoya 2020-06-09
10591077 Control valve and method of manufacturing the same 2020-03-17
10352475 Electrically operated valve Satoshi Uehara 2019-07-16
10330214 Control valve 2019-06-25
D850583 Motor-operated valve Satoshi Uehara, Yu ANDO 2019-06-04
9121522 Electrically operated valve Takao Harada, Masaya Satou, Masaharu Itoh 2015-09-01