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For the Inventor, By the Inventor

Seoul, South Korea

Sang Kyun Cha

This inventor holds 38 USPTO granted patents and 5 published patent applications and 1 EPO patent, primarily in Database Query Processing. Top assignees: Sap Se, Sap Ag, Transact in Memory, Inc.. Active years: 2006-2025.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Sang Kyun Cha. Retrieved from https://idiyas.com/inventor/sang-kyun-cha

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

USPTO Granted Patents = 38 

% Patents Active = 92.1


Average Co-Inventor Count = 4.3

ph-index = 14

Forward Citations = 740(Granted Patents)


Location History:

  • Kwanak-ku, KR (2012 - 2015)
  • Walldorf, DE (2016)
  • Seocho-ku, KR (2014 - 2020)
  • Seoul, KR (2006 - 2023)

Company Filing History:

goldMedal24 out of 6,308 
 
Sap Se
 patents
silverMedal13 out of 3,607 
 
Sap Ag
 patents
bronzeMedal1 out of 1 
 
Transact in Memory, Inc.
 patent

Years Active: 2006-2025

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Areas of Expertise:
Database Queries
Hybrid Tables
Memory Allocation
Concurrency Control
Query Optimization
Data Compression
Transaction Processing
Client-Side Routing
Distributed Databases
Logging
Performance Enhancement
Cache Behavior
38 patents (USPTO):Explore Patents
1. 12222944 - Processing database queries using format conversion (2025-02-11),
2. 11755575 - Processing database queries using format conversion (2023-09-12),
3. 11176132 - Processing database queries using format conversion (2021-11-16),
4. 11137911 - Fast restart of applications using shared memory (2021-10-05),
5. 10664497 - Hybrid database table stored as both row and column store (2020-05-26),
6. 10444990 - Fast restart of applications using shared memory (2019-10-15),
7. 10346383 - Hybrid database table stored as both row and column store (2019-07-09),
8. 10133659 - Proactive memory allocation (2018-11-20),
9. 10127278 - Processing database queries using format conversion (2018-11-13),
10. 9965500 - Mixed join of row and column database tables in native orientation (2018-05-08),
11. 9892163 - Optimal operator placement for distributed query processing (2018-02-13),
12. 9720992 - DML replication with logical log shipping (2017-08-01),
13. 9720949 - Client-side partition-aware batching of records for insert operations (2017-08-01),
14. 9558258 - Hybrid database table stored as both row and column store (2017-01-31),
15. 9558229 - Transaction private log buffering for high performance of transaction processing (2017-01-31),

Title: Innovations and Contributions of Sang Kyun Cha in Database Query Processing

Introduction

Sang Kyun Cha, a prolific inventor based in Seoul, South Korea, has made significant contributions to the field of database technology. With a remarkable portfolio consisting of 38 patents, Cha is recognized for his innovative approaches to processing database queries.

Latest Patents

One of Sang Kyun Cha's latest inventions focuses on "Processing database queries using format conversion." This patent encompasses devices, methods, and systems designed to efficiently process database queries that are formatted differently from the database's storage model being queried. The invention details a process that allows for the submission of queries for data items stored in a database, determining the necessity of a query operator that utilizes data with a format differing from the database's storage model. The system includes converting the format of the data used by the query operator to align with the storage model format, thus enhancing the query processing efficiency. Related systems, methods, and articles of manufacture are also described within the patent.

Career Highlights

Sang Kyun Cha has been associated with prominent companies throughout his career, notably SAP SE and SAP AG. His work at these organizations has contributed to advancements in database technologies and enterprise resource planning systems. Cha's dedication to innovation has established him as a key player in the tech industry.

Collaborations

During his career, Sang Kyun Cha has worked alongside notable professionals such as Juchang Lee and Chanho Jeong. Collaborating with these individuals has facilitated the development of cutting-edge technologies and furthered advancements in database query processing.

Conclusion

Sang Kyun Cha's impressive portfolio of patents and his contributions to the field of database technology illustrate his commitment to innovation. His work not only showcases his expertise but also paves the way for future advancements in the processing of database queries. As technology continues to evolve, inventors like Cha play a crucial role in shaping its future.

Profile summary based on public USPTO records.
Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]
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