Speaker and vibration control unit
US-9743192-B2 · Aug 22, 2017 · US
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Tetsu Hirofumi patents
Tetsu Hirofumi is listed as an inventor on 2 patents in our database. Major assignees and classification codes are summarized below.
| Metric | Value |
|---|---|
| Inventor | Tetsu Hirofumi |
| Total patents | 2 |
| First publication | Jun 30, 2016 |
| Latest publication | Aug 22, 2017 |
Notable patents
Publications ranked by popularity score, then publication date.
Speaker and vibration control unit
US-2016192075-A1 · Jun 30, 2016 · US
Recent patents
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Major assignees
Companies most often associated with this inventor's publications.
| Assignee | Patents |
|---|---|
| Fujitsu Ten Ltd | 2 |
Top CPC classifications
Most common classification codes across this inventor's patents.
| CPC | Patents |
|---|---|
| H04R7/26 | 2 |
| H04R9/063 | 2 |
| H04R9/027 | 2 |
| H02K33/18 | 2 |
| H04R2209/024 | 2 |