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Chienliu Chang
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San Jose, CA, US
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Patents Grants
last 30 patents
Information
Patent Grant
Piezoelectric micromachined ultrasound transducer device with piezo...
Patent number
11,623,246
Issue date
Apr 11, 2023
Invensense, Inc.
Emad Mehdizadeh
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Piezoelectric micromachined ultrasound transducer device with multi...
Patent number
11,577,276
Issue date
Feb 14, 2023
Invensense, Inc.
Chienliu Chang
B06 - GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
Information
Patent Grant
Piezoelectric poling of a wafer with temporary and permanent electr...
Patent number
11,563,166
Issue date
Jan 24, 2023
Invensense, Inc.
Chienliu Chang
B06 - GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
Information
Patent Grant
EMI reduction in piezoelectric micromachined ultrasound transducer...
Patent number
11,515,465
Issue date
Nov 29, 2022
Invensense, Inc.
Nikhil Apte
B81 - MICRO-STRUCTURAL TECHNOLOGY
Patents Applications
last 30 patents
Information
Patent Application
DUAL LAYER ULTRASONIC TRANSDUCER FABRICATION PROCESS
Publication number
20220040735
Publication date
Feb 10, 2022
TDK Corporation
Chienliu CHANG
B06 - GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
Information
Patent Application
PIEZOELECTRIC POLING WITH TEMPORARY ELECTRODES
Publication number
20200287126
Publication date
Sep 10, 2020
InvenSense, Inc.
Chienliu Chang
B06 - GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
Information
Patent Application
DUAL ELECTRODE PIEZOELECTRIC MICROMACHINED ULTRASOUND TRANSDUCER DE...
Publication number
20200147644
Publication date
May 14, 2020
InvenSense, Inc.
Chienliu Chang
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
EMI REDUCTION IN PIEZOELECTRIC MICROMACHINED ULTRASOUND TRANSDUCER...
Publication number
20190267536
Publication date
Aug 29, 2019
InvenSense, Inc.
Nikhil Apte
B81 - MICRO-STRUCTURAL TECHNOLOGY
Information
Patent Application
PIEZOELECTRIC MICROMACHINED ULTRASOUND TRANSDUCER DEVICE
Publication number
20190262865
Publication date
Aug 29, 2019
InvenSense, Inc.
Emad Mehdizadeh
G06 - COMPUTING CALCULATING COUNTING