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For the Inventor, By the Inventor

Suwon-si, South Korea

Hwa-sun Lee

USPTO Granted Patents = 12 

Average Co-Inventor Count = 4.4

ph-index = 3

Forward Citations = 23(Granted Patents)


Company Filing History:

goldMedal9 out of 7,578 
 
Samsung Electro-mechanics Co., Ltd.
 patents
silverMedal3 out of 131,324 
 
Samsung Electronics Co., Ltd.
 patents

Years Active: 2009-2014

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12 patents (USPTO):Explore Patents
1. 8806727 - Method of forming a piezoelectric actuator of an inkjet head (2014-08-19),
2. 8042919 - Piezoelectric inkjet printhead (2011-10-25),
3. 8002391 - Inkjet printhead having piezoelectric actuator and method of driving the piezoelectric actuator (2011-08-23),
4. 7857433 - Inkjet printhead employing piezoelectric actuator and method of manufacturing the inkjet printhead (2010-12-28),
5. 7722166 - Inkjet printhead having piezoelectric actuator and method of driving the piezoelectric actuator (2010-05-25),
6. 7699442 - Piezoelectric inkjet printhead (2010-04-20),
7. 7692362 - Actuating device, fabricating method thereof, and module variation control device using the actuating device (2010-04-06),
8. 7682001 - Piezoelectric actuator inkjet head and method of forming the same (2010-03-23),
9. 7681989 - Piezoelectric actuator for an ink-jet printhead and method of forming the same (2010-03-23),
10. 7677707 - Method of forming thick layer by screen printing and method of forming piezoelectric actuator of inkjet head (2010-03-16),
11. 7603756 - Method of forming piezoelectric actuator of inkjet head (2009-10-20),
12. 7571975 - Defect detection device of a print head and method of detecting defect of a print head (2009-08-11),

Title: Hwa-sun Lee: Innovator in Piezoelectric Technology

Introduction

Hwa-sun Lee is a prominent inventor based in Suwon-si, South Korea. He has made significant contributions to the field of piezoelectric technology, holding a total of 12 patents. His innovative work has advanced the capabilities of inkjet printing technology, making it more efficient and effective.

Latest Patents

One of Hwa-sun Lee's latest patents is a method of forming a piezoelectric actuator of an inkjet head. This method involves creating a lower electrode on a vibration plate, followed by the formation of a piezoelectric layer that corresponds to multiple pressure chambers. The process includes the addition of a supporting pad and an upper electrode, which is bonded to a driving circuit to receive voltage. Another notable patent is for a piezoelectric inkjet printhead, which features a manifold and a chamber array with multiple chambers connected to the manifold. This design includes a vibrating plate and piezoelectric actuators that adjust the pressure in the chambers, enhancing the ink ejection process.

Career Highlights

Hwa-sun Lee has worked with leading companies in the technology sector, including Samsung Electro-Mechanics Co., Ltd. and Samsung Electronics Co., Ltd. His experience in these organizations has allowed him to develop and refine his innovative ideas in piezoelectric technology.

Collaborations

Throughout his career, Hwa-sun Lee has collaborated with talented individuals such as Jae-woo Chung and Seung-mo Lim. These partnerships have contributed to the successful development of his patented technologies.

Conclusion

Hwa-sun Lee's contributions to piezoelectric technology have significantly impacted the inkjet printing industry. His innovative patents and collaborations with leading companies and talented individuals highlight his role as a key inventor in this field.

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