Inventor
Chao-Chih Chang
Inventor
Taichung, TW
Overview
Patents· 17 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 transducers54%
Y10TTechnical subjects covered by former us classification15%
LOC148%
B81BMicrostructural devices or systems, e.g. micromechanical devices4%
B81CProcesses or apparatus specially adapted for the manufacture or treatment of microstructural devices or systems4%
F16BDevices for fastening or securing constructional elements or machine parts together, e.g. nails, bolts, circlips, clamps, clips or wedges4%
G10KSound-producing devices4%
H01HElectric switches4%
H04WWireless communication networks4%
PatentTitleYear
9,585,065'Mobile communications devices and methods for inter-radio access technology performance enhancement'20179,578,422'Microphone capable of actively counteracting noise attributed to undesired vibration'20178,375,560'Method for manufacturing a condenser microphone'20138,031,889'Acoustoeletric transformation chip for ribbon microphone'20117,895,925'Clamping device for anchoring a microphone to an instrument'2011D0630191'Microphone shock absorber'20117,469,461'Method for making a diaphragm unit of a condenser microphone'20087,433,478'Microphone pick-up device'20087,343,661'Method for making condenser microphones'20087,224,812'Condenser microphone and method for making the same'20077,203,330'Switching unit for a microphone'20077,155,024'Microphone'20066,928,178'Condenser microphone and method for making the same'20056,597,796'Microphone with a variable resistance switch'20036,477,257'Directional microphone'20026,201,877'Adjustable holder for an acoustic pick-up device'2001D0425894'Megaphone'2000Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2000–2013Patents assigned to CHANG CHAO-CHIH (2)· patent assignee history
2000–2017Based in Taichung, TW· patent location history
2001–2008Patents assigned to TAIWAN CAROL ELECTRONICS CO LT (8)· patent assignee history
2011–2017Patents assigned to TAIWAN CAROL ELECTRONICS CO LTD (4)· patent assignee history
2013Patents assigned to LAI CHUNG-CHING (1)· patent assignee history
2017Patents assigned to MEDIATEK INC (1)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| TAIWAN CAROL ELECTRONICS CO LT | 8 | 2001–2008 |
| TAIWAN CAROL ELECTRONICS CO LTD | 4 | 2011–2017 |
| CHANG CHAO-CHIHself | 2 | 2000–2013 |
| LAI CHUNG-CHING | 1 | 2013 |
| MEDIATEK INC | 1 | 2017 |
Locations
| Location | Patents | Span |
|---|---|---|
| Taichung, TW | 17 | 2000–2017 |