Partial year: Data through Q3 2025 (Sept 30). Full-year totals not yet available.
SO

Seiji Okamoto

KS Kawai Gakki Seisakusho: 1 patents #2 of 4Top 50%
NT NTT: 1 patents #346 of 767Top 50%
Overall (2025): #87,981 of 469,880Top 20%
2
Patents 2025

Issued Patents 2025

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
12308006 Musical tone generating device and control method of musical tone generating device Tetsuya Hirano 2025-05-20
12224889 Adaptive equalization filter and method for updating filter coefficients Etsushi Yamazaki, Masanori Nakamura, Kengo Horikoshi, Takeo SASAI, Yoshiaki Kisaka 2025-02-11