Inventor
Katsuaki Satoh
Inventor
Osaka, JP
Overview
Patents· 9 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 transducers44%
H03GControl of amplification19%
G03BApparatus or arrangements for taking photographs or for projecting or viewing them6%
G10LSpeech analysis techniques or speech synthesis6%
H03HImpedance networks, e.g. resonant circuits6%
H04BTransmission6%
H04MTelephonic communication6%
Y10TTechnical subjects covered by former us classification6%
PatentTitleYear
10,068,585Echo canceller device20185,073,946'Thin speaker having an enclosure with an open portion and a closed portion'19915,051,942'Method and apparatus for calculating filter factors'19915,025,474'Speaker system with image projection screen'19915,023,913'Apparatus for changing a sound field'19914,924,962'Sound reproducing apparatus for use in vehicle'19904,896,285'Calculation of filter factors for digital filter'19904,888,808'Digital equalizer apparatus enabling separate phase and amplitude characteristic modification'19894,484,383'Method of manufacturing a speaker diaphragm'1984Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1984–1991Patents assigned to MATSUSHITA ELECTRIC INDUSTRIAL CO LTD (8)· patent assignee history
1984–1991Based in Osaka, JP· patent location history
2018Patents assigned to AMENITY RES INSTITUTE CO LTD (1)· patent assignee history
2018Based in Tokyo, JP· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| MATSUSHITA ELECTRIC INDUSTRIAL CO LTD | 8 | 1984–1991 |
| AMENITY RES INSTITUTE CO LTD | 1 | 2018 |
Locations
| Location | Patents | Span |
|---|---|---|
| Osaka, JP | 8 | 1984–1991 |
| Tokyo, JP | 1 | 2018 |