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

Junji Maruyama — 5 Patents

EBEbara: 2 patents #752 of 1,611Top 50%
Fujitsu Limited: 2 patents #10,930 of 24,456Top 45%
OCOki Electric Industry Co.: 1 patents #1,459 of 2,807Top 55%
Kawasaki, JP: #4,894 of 15,035 inventorsTop 35%
Overall (All Time): #907,971 of 4,157,543Top 25%
5 Patents All Time
Junji Maruyama has been granted 5 US patents while listed as an inventor at Ebara. The first was granted in 1990 and the most recent in April 2018. Junji Maruyama ranks #907,971 of 4,157,543 US inventors in our database (top 21.8%). Patent records list Junji Maruyama in Kawasaki, JP.

Patents per Year

Patents granted per year, 1990 to 2018Bar chart with a peak of 1 patents in 1990.peak 11990: 1 patents19902003: 1 patents20032004: 1 patents20042013: 1 patents20132018: 1 patents2018

Issued Patents All Time

Showing 1–5 of 5 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
D814953 Remote monitoring device Nobuharu Masuyama, Takashi Auchi 2018-04-10
D690691 Personal computer Masato Hoshi, Hiroyuki Fujita, Kohei Okamoto 2013-10-01
6782301 Method for selecting centrifugal fluid machine by computer 2004-08-24
6671657 Method for calculating characteristic curve of centrifugal fluid machine by computer Shinichi Shigehara 2003-12-30
4969145 Modem Masahiro Fukutomi 1990-11-06 $2,000