| 2026-06-21 | Japanese audio brand |
| 2023-10-17 | Japanese audio brand |
| 2022-04-01 | Japanese electronics brand |
| 2021-08-17 | Japanese speaker brand |
| 2021-01-28 | Classic name in audio equipment |
| 2020-11-13 | Japanese electronics company bought by Sony in 2002 |
| 2020-11-01 | Japanese audio brand |
| 2020-02-10 | Japanese consumer electronics brand |
| 2019-06-23 | Competitor of Sanyo and Bose |
| 2018-05-21 | Onetime electronics giant |
| 2017-05-23 | Onetime giant in consumer electronics |
| 2017-05-04 | Audio equipment brand |
| 2016-04-26 | Former Sanyo competitor |
| 2016-03-07 | Onetime big name in Japanese electronics |
| 2015-05-05 | Sanyo competitor |
| 2015-02-06 | Former consumer electronics company bought by Sony |
| 2012-10-30 | Sanyo competitor |
| 2012-07-15 | Electronics company bought by Sony |
| 2009-02-12 | Sony brand |
| 2008-08-31 | Sanyo competitor |
| 2008-05-11 | Sanyo competitor |
| 2008-02-21 | Sony subsidiary |
| 2006-03-20 | Sony competitor |
| 2006-02-28 | Sanyo competitor |
| 2005-07-20 | Audio equipment brand |
| 2005-03-17 | Panasonic competitor |
| 2005-03-15 | Sony competitor |
| 2003-06-06 | Sony competitor |