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

Masako Aki — 4 Patents

SYSysmex: 4 patents #191 of 868Top 25%
Kobe, JP: #1,701 of 5,515 inventorsTop 35%
Overall (All Time): #1,080,739 of 4,157,543Top 30%
4 Patents All Time
Masako Aki has been granted 4 US patents while listed as an inventor at Sysmex. The first was granted in 2008 and the most recent in November 2024. Masako Aki ranks #1,080,739 of 4,157,543 US inventors in our database (top 26.0%). Patent records list Masako Aki in Kobe, JP.

Patents per Year

Patents granted per year, 2008 to 2024Bar chart with a peak of 2 patents in 2008.peak 22008: 2 patents20082022: 1 patents20222024: 1 patents2024

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
12140600 Method for measuring activated partial thromboplastin time Takahiko Bando, Kohei Akatsuchi, Naoki Yamamoto, Hiroshi NEGORO, Masato Michishita 2024-11-12
11486885 Reagent for determination of coagulation time, production method therefor, reagent kit, and method for determination of coagulation time Kohei Akatsuchi, Takahiko Bandou, Naoki Yamamoto 2022-11-01
7427511 Immunochromatographic test device Shinya Nagai, Noriyuki Saito, Takeshi Imoarai 2008-09-23
7413880 Test kit for immunochromatography Shinya Nagai, Takeshi Imoarai 2008-08-19