Company Filing History:

12 out of 6,228

Hynix Semiconductor Inc.

Years Active: 2006-2017

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17 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 9627070 - Program method of nonvolatile memory device for having dense threshold voltage distribution by controlling voltage of bit line according to threshold voltage of memory cell (2017-04-18),

2. 9251901 - Semiconductor memory device with high threshold voltage distribution reliability method (2016-02-02),

3. 9082487 - Program method of nonvolatile memory device for having dense threshold voltage distribution by controlling voltage of bit line according to threshold voltage of memory cell (2015-07-14),

4. 8908462 - Semiconductor device including current compensator (2014-12-09),

5. 8743632 - Nonvolatile memory device, operating method thereof, and data storage device having the same (2014-06-03),

6. 8582362 - Circuit for precharging bit line and nonvolatile memory device including the same (2013-11-12),

7. 8339880 - Circuit for controlling redundancy in semiconductor memory apparatus (2012-12-25),

8. 8184482 - Nonvolatile memory device for preventing a source line bouncing phenomenon (2012-05-22),

9. 8085602 - Page buffer circuit, nonvolatile memory device including the page buffer circuit, and method of operating the nonvolatile memory device (2011-12-27),

10. 7903481 - Page buffer circuit, nonvolatile device including the same, and method of operating the nonvolatile memory device (2011-03-08),

11. 7898876 - Page buffer circuit, nonvolatile memory device including the page buffer circuit, and method of operating the nonvolatile memory device (2011-03-01),

12. 7870414 - Clock tree circuit and semiconductor memory device using the same, and duty cycle correction method (2011-01-11),

13. 7679983 - Address path circuit with row redundant scheme (2010-03-16),

14. 7511546 - Synchronous memory device with output driver controlller (2009-03-31),

15. 7391660 - Address path circuit with row redundant scheme (2008-06-24),

Title: **Cheul Hee Koo: A Pioneer in Nonvolatile Memory Device Innovation**

Introduction

Cheul Hee Koo is an accomplished inventor based in Icheon-si, South Korea, known for his significant contributions to the field of semiconductor technology. With a remarkable portfolio of 17 patents, Koo has emerged as a key player in the innovation of nonvolatile memory devices, paving the way for advancements that improve the reliability and efficiency of memory storage.

Latest Patents

Among his latest innovations, Koo's patents include a program method of a nonvolatile memory device designed to achieve a dense threshold voltage distribution. This method involves multiple steps to enhance the programming of memory cells, including a pre-program verify step, adjustments to bit line voltage based on threshold voltage, and post-program verification. Another notable patent focuses on a semiconductor memory device that ensures high threshold voltage distribution reliability by employing a peripheral circuit to regulate voltage levels during programming operations. These advancements underscore Koo's dedication to refining memory technology and enhancing device performance.

Career Highlights

Cheul Hee Koo has had a distinguished career, working with prominent companies in the semiconductor industry such as Hynix Semiconductor Inc. and SK Hynix Inc. His experience at these organizations has enriched his understanding of memory device technology and significantly contributed to his innovative inventions. His work is characterized by a commitment to enhancing the functionality of memory storage solutions.

Collaborations

Throughout his career, Koo has collaborated with talented individuals such as Sam Kyu Won and Duck Ju Kim. These partnerships have fostered a creative environment that has led to significant breakthroughs in the field of semiconductor technology. Working alongside other innovators has allowed Koo to share knowledge and explore new ideas, further driving his success as an inventor.

Conclusion

Cheul Hee Koo continues to be a leading figure in the innovation of nonvolatile memory devices. His impressive portfolio of patents and collaborations with other experts demonstrate his commitment to advancing technology in the semiconductor industry. As the technology landscape continues to evolve, Koo's contributions will undoubtedly play an essential role in shaping the future of memory storage solutions.

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