Chunfa Liu

Executive Summary

Chunfa Liu is an inventor who has filed 5 patents. Their primary areas of innovation include {Magnetic circuit} (4 patents), Loudspeakers (2 patents), Diaphragms comprising polymeric materials (2 patents), and they have worked with companies such as Goertek Inc. (4 patents), GOERTEK INC. (1 patents). Their most frequent collaborators include (2 collaborations), (2 collaborations), (2 collaborations).

Patent Filing Activity

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Technology Areas

List of Technology Areas

• H04R9/025 ({Magnetic circuit}): 4 patents
• H04R9/06 (Loudspeakers): 2 patents
• H04R2307/025 (Diaphragms comprising polymeric materials): 2 patents
• H04R9/045 ({Mounting (): 2 patents
• C08J5/18 (Manufacture of films or sheets): 1 patents
• H04R7/10 (LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS (generating mechanical vibrations in general): 1 patents
• H04R31/003 ({for diaphragms or their outer suspension}): 1 patents
• H04R1/24 (LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS (generating mechanical vibrations in general): 1 patents
• H04R7/18 (at the periphery): 1 patents
• H04R1/10 (Earpieces; Attachments therefor {; Earphones; Monophonic headphones (): 1 patents
• H04R7/12 (LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS (generating mechanical vibrations in general): 1 patents
• H04R7/04 (Plane diaphragms): 1 patents
• C08J5/0405 (Reinforcing macromolecular compounds with loose or coherent fibrous material): 1 patents
• C08J7/042 ({with two or more layers, where at least one layer of a composition contains a polymer binder}): 1 patents
• C08K3/06 (Use of inorganic or non-macromolecular organic substances as compounding ingredients (paints, inks, varnishes, dyes, polishes, adhesives): 1 patents
• C08K5/0016 (Use of organic ingredients): 1 patents
• C08K5/40 (Use of inorganic or non-macromolecular organic substances as compounding ingredients (paints, inks, varnishes, dyes, polishes, adhesives): 1 patents
• C08J2381/04 (WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES): 1 patents
• H04R2307/029 (LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS (generating mechanical vibrations in general): 1 patents
• H04R9/043 ({Inner suspension or damper, e.g. spider (outer suspension or surround): 1 patents

Companies

List of Companies

• Goertek Inc.: 4 patents
• GOERTEK INC.: 1 patents

Collaborators

• Fengguang Ling (2 collaborations)
• Chun Li (2 collaborations)
• Shousong Qiang (2 collaborations)
• Shuqiang Wang (1 collaborations)
• Miaomiao WANG (1 collaborations)
• Xiaodong Guo (1 collaborations)
• Chengfei Zhang (1 collaborations)
• WEIFENG PENG (1 collaborations)
• JIANBIN YANG (1 collaborations)
• Jianbin Yang (1 collaborations)