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

Hiroko Ito — 6 Patents

KEKewpie: 1 patents #22 of 93Top 25%
KCKonishiroku Photo Industry Co.: 1 patents #532 of 894Top 60%
NPNippon Telegraph And Telephone Public: 1 patents #297 of 842Top 40%
TCTeika Pharmaceutical Co.: 1 patents #8 of 26Top 35%
Hitachi: 1 patents #17,777 of 28,497Top 65%
Sony: 1 patents #17,321 of 25,231Top 70%
Hachioji, JP: #1,050 of 2,869 inventorsTop 40%
Overall (All Time): #779,687 of 4,157,543Top 20%
6 Patents All Time
Hiroko Ito has been granted 6 US patents while listed as an inventor at Hitachi. The first was granted in 1981 and the most recent in December 2021. Hiroko Ito ranks #779,687 of 4,157,543 US inventors in our database (top 18.8%). Patent records list Hiroko Ito in Hachioji, JP.

Patents per Year

Patents granted per year, 1981 to 2021Bar chart with a peak of 1 patents in 1981.peak 11981: 1 patents19811982: 1 patents19821986: 1 patents19862001: 1 patents20012005: 1 patents20052021: 1 patents2021

Issued Patents All Time

Showing 1–6 of 6 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
11191729 Granular material for orally fast disintegrating tablets Takao Shimatani, Yutaka Hasegawa, Takahiro Kawagishi, Naohisa WADA, Atsushi Yamada 2021-12-07
6965490 Multi-channel head position controlling apparatus and method of controlling position of multi-channel head 2005-11-15 $575,000
6187334 Foods for preventing vomiting Norimitsu Yamagata, Hiroshi Tanaka, Yoshinori Hamachiyo, Kazuhiko Kaneda 2001-02-13
4574398 Escape gloves Kazuya Endo 1986-03-11
4347408 Multi-frequency signal receiver Eiji Ohira, Akira Ichikawa 1982-08-31 $117,000
4300757 Apparatus for receiving recording sheets in upset state for copying machine Junichi Koiso 1981-11-17