Inventor
MASAHIRO FUKUI
Inventor
JP
Overview
Patents· 12 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
H04Rprimary
H04RLoudspeakers, microphones, gramophone pick-ups or like acoustic electromechanical transducers45%
G10KSound-producing devices23%
B60RVehicles, vehicle fittings, or vehicle parts, not otherwise provided for14%
G06VImage or video recognition or understanding5%
G10LSpeech analysis techniques or speech synthesis5%
H04MTelephonic communication5%
H04SStereophonic systems5%
PatentTitleYear
12,538,071Speaker system202612,513,456Sound system202512,401,948Speaker system202512,327,541Sound system202512,277,922Cancel filter coefficient selecting apparatus, cancel filter coefficient selecting method, and program202512,250,517Sound system202512,190,856Sound system202512,108,209Speaker array202412,087,321Evaluation method, evaluation apparatus, and program202412,015,902Echo cancellation device, echo cancellation method, and program202412,002,445Cancel filter coefficient generation method, cancel filter coefficient generation apparatus, and program202411,479,184Sound collection apparatus2022Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2022–2025Patents assigned to NIPPON TELEGRAPH & TELEPHONE (10)· patent assignee history
2022–2026Based in JP· patent location history
2025–2026Patents assigned to NTT INC (2)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| NIPPON TELEGRAPH & TELEPHONE | 10 | 2022–2025 |
| NTT INC | 2 | 2025–2026 |
Locations
| Location | Patents | Span |
|---|---|---|
| JP | 12 | 2022–2026 |