OT

Osamu Tanaka

DC Dowa Electronics Materials Co.: 2 patents #2 of 18Top 15%
TO Tokuyama: 2 patents #9 of 60Top 15%
📍 Akita, JP: #1 of 20 inventorsTop 5%
Overall (2025): #31,376 of 469,880Top 7%
4
Patents 2025

Issued Patents 2025

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
12433066 Semiconductor optical device and method of producing the same Yoshitaka Kadowaki 2025-09-30
12336335 Light-emitting element and method of producing the same Yoshitaka Kadowaki, Shogo Sakuraba 2025-06-17
12286541 Surface-treated sol-gel silica and method for producing same Hiromasa FUJIOKA, Hiroaki Taira, Naoki MIKAMI, Toshiaki Ootani 2025-04-29
12209187 Amorphous silica-titania composite oxide powder, resin composition, liquid dispersion, and method for producing silica-coated silica-titania composite oxide powder Masao Ariyuki, Kazuhiro Fukunaga, Mari Aoki 2025-01-28