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

Ayako Sakai — 8 Patents

SYSysmex: 5 patents #154 of 868Top 20%
Brother Kogyo: 2 patents #1,845 of 2,767Top 70%
TTThe University Of Tokyo: 1 patents #1,000 of 2,633Top 40%
SCShinko Electric Industries Co.: 1 patents #570 of 723Top 80%
Overall (All Time): #600,572 of 4,157,543Top 15%
8 Patents All Time
Ayako Sakai has been granted 8 US patents while listed as an inventor at Sysmex. The first was granted in 2012 and the most recent in January 2025. Ayako Sakai ranks #600,572 of 4,157,543 US inventors in our database (top 14.4%). Patent records list Ayako Sakai in Nagano, MH, JP.

Patents per Year

Patents granted per year, 2012 to 2025Bar chart with a peak of 2 patents in 2012.peak 22012: 2 patents20122013: 2 patents20132014: 1 patents20142015: 2 patents20152025: 1 patents2025

Issued Patents All Time

Showing 1–8 of 8 patents

Patent #TitleCo-InventorsDate
12207400 Metal component and ceramic substrate Yuichi Nakamura, Keita Sato 2025-01-21
9169330 Hybridoma producing anti-methylated DNA antibody and utilization of same Masahiro Kajita 2015-10-27
9075063 Methylation analysis to determine the presence of cancer cells Atsushi Kaneda, Kouichi Yagi, Hiroyuki Aburatani 2015-07-07
8906623 Kit and method for determining whether or not unmethylated cytosine conversion treatment is properly carried out and method for analyzing methylated DNA using the same Kaya Tai, Noriaki Yamamoto, Noriko Oka, Masahiro Kajita 2014-12-09
8465919 Method of detecting methylated cytosine Masahiro Kajita, Noriko Oka, Noriaki Yamamoto, Hideki Ishihara 2013-06-18
8446600 Multi function peripheral and method therfor Noriko Misumi, Takahiro Ikeno, Masaaki Wakizaka 2013-05-21
8300279 Image reading devices Takaaki Mukai, Yoshinori Osakabe 2012-10-30
8163490 Method of analyzing methylated DNA Masahiro Kajita, Hideki Ishihara 2012-04-24