Speaker
US-12513440-B2 · Dec 30, 2025 · US
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Tachi Ryosuke patents
Tachi Ryosuke is listed as an inventor on 51 patents in our database. Major assignees and classification codes are summarized below.
| Metric | Value |
|---|---|
| Inventor | Tachi Ryosuke |
| Total patents | 51 |
| First publication | Nov 30, 2017 |
| Latest publication | Dec 30, 2025 |
Notable patents
Publications ranked by popularity score, then publication date.
Communication support system
US-12464284-B2 · Nov 4, 2025 · US
Active noise control system
US-12394403-B2 · Aug 19, 2025 · US
Speaker displacement detection calibration method and speaker displacement detection apparatus
US-12356145-B2 · Jul 8, 2025 · US
Seamless steel pipe and method of manufacture thereof
US-12338942-B2 · Jun 24, 2025 · US
Speaker
US-2024365034-A1 · Oct 31, 2024 · US
Communication support system
US-12112733-B2 · Oct 8, 2024 · US
Speaker
US-12052549-B2 · Jul 30, 2024 · US
Speaker distortion correction device
US-12035115-B2 · Jul 9, 2024 · US
In-vehicle communication support system
US-11956604-B2 · Apr 9, 2024 · US
Recent patents
Latest publications not already listed above.
Active noise control system
US-11922916-B2 · Mar 5, 2024 · US
Active noise control system
US-2023410783-A1 · Dec 21, 2023 · US
Communication support system
US-2023396922-A1 · Dec 7, 2023 · US
Speaker
US-11805367-B2 · Oct 31, 2023 · US
Audio signal processing apparatus, audio system, and method for enhancing low-frequency sound sensation
US-2023292044-A1 · Sep 14, 2023 · US
Active noise control system
US-11756523-B2 · Sep 12, 2023 · US
Communication support system
US-2023274723-A1 · Aug 31, 2023 · US
Seamless steel pipe and method of manufacture thereof
US-2023265947-A1 · Aug 24, 2023 · US
Speaker
US-2023164491-A1 · May 25, 2023 · US
Speaker displacement detection calibration method and speaker displacement detection apparatus
US-2023140328-A1 · May 4, 2023 · US
Active noise control system utilizing noise cancellation sounds
US-11622195-B2 · Apr 4, 2023 · US
Speaker distortion correction device
US-2023012785-A1 · Jan 19, 2023 · US
In-vehicle communication support system
US-2023018804-A1 · Jan 19, 2023 · US
Active noise control system
US-11501748-B2 · Nov 15, 2022 · US
Active noise control system
US-11482204-B2 · Oct 25, 2022 · US
Active noise control system
US-11463808-B2 · Oct 4, 2022 · US
Active noise control system based on head position
US-11462202-B2 · Oct 4, 2022 · US
In-vehicle communication support system
US-11462203-B2 · Oct 4, 2022 · US
In-vehicle communication support system
US-11462205-B2 · Oct 4, 2022 · US
Speaker
US-2022312135-A1 · Sep 29, 2022 · US
Major assignees
Companies most often associated with this inventor's publications.
| Assignee | Patents |
|---|---|
| Alps Alpine Co Ltd | 35 |
| A School Corporation Kansai Univ | 15 |
| Alpine Electronics Inc | 12 |
| Jfe Steel Corp | 4 |
Top CPC classifications
Most common classification codes across this inventor's patents.
| CPC | Patents |
|---|---|
| G10K11/17854 | 32 |
| G10K2210/1282 | 28 |
| G10K11/17881 | 22 |
| G10K2210/3028 | 20 |
| G10K11/17857 | 18 |