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For the Inventor, By the Inventor

Yongin, South Korea

Sang-jin Park

This inventor holds 72 USPTO granted patents and 4 published patent applications and 1 EPO patent, primarily in Electrophotographic Imaging (CPC class G03G). Top assignees: Samsung Electronics Co., Ltd., Samsung Sdi Co., Inc., B & C Biopharm. Active years: 2002-2017.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Sang-jin Park. Retrieved from https://idiyas.com/inventor/sang-jin-park

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

USPTO Granted Patents = 72 

% Patents Active = 68.1

 

Average Co-Inventor Count = 4.2

ph-index = 11

Forward Citations = 636(Granted Patents)

Forward Citations (Not Self Cited) = 630(Dec 10, 2025)


Inventors with similar research interests:


Location History:

  • Pyongtaek, KR (2002)
  • Pyeongtaek, KR (2004 - 2007)
  • Pyeongtae-si, KR (2006 - 2011)
  • Pyeongtaek-si-si, KR (2011)
  • Pyeongtaek-si, KR (2007 - 2012)
  • Seoul, KR (2003 - 2014)
  • Hwaseong, KR (2015)
  • Suwon-si, KR (2015)
  • Yongin-si, KR (2007 - 2017)
  • Hwaseong-si, KR (2013 - 2017)

Company Filing History:

goldMedal51 out of 132,108 
 
Samsung Electronics Co., Ltd.
 patents
silverMedal14 out of 7,663 
 
Samsung Sdi Co., Inc.
 patents
bronzeMedal2 out of 2 
 
B & C Biopharm
 patents
4. 2 out of 27,288 
 
Samsung Display Co., Ltd.
 patents
5. 1 out of 13 
 
Dongwha Pharm. Ind. Co., Ltd.
 patents
6. 1 out of 30,192 
 
Robert Bosch
 patents
7. 1 out of 263 
 
S-Printing Solution Co., Ltd.
 patents
8. 1 out of 17 
 
Sb Limotive Company Ltd.
 patents
where one patent can have more than one assignee

Years Active: 2002-2017

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Areas of Expertise:
Electrophotographic
Image Forming Apparatus
Toner Cartridge
Battery Pack
Photoelectric Device
Liquid Crystal Display
Nonvolatile Memory
Rechargeable Battery
Magnetic Memory
Charging Apparatus
Solar Cell
Pixel Driving Circuit
72 patents (USPTO):Explore Patents
1. 9703233 - Electrophotographic image forming apparatus, toner cartridge for the same, imaging cartridge for the same, and method of controlling toner level in developing chamber of the same (2017-07-11),
2. 9685681 - Battery pack (2017-06-20),
3. 9541859 - Electrophotographic image forming apparatus, toner cartridge for the same, imaging cartridge for the same, and method of controlling toner level in developing chamber of the same (2017-01-10),
4. 9412895 - Method of manufacturing photoelectric device (2016-08-09),
5. 9331312 - Secondary battery (2016-05-03),
6. 9324977 - Secondary battery (2016-04-26),
7. 9285705 - Electrophotographic image forming apparatus, toner cartridge for the same, imaging cartridge for the same, and method of controlling toner level in developing chamber of the same (2016-03-15),
8. 9182739 - Electrophotographic image forming apparatus (2015-11-10),
9. 9104169 - Electrophotographic image forming apparatus (2015-08-11),
10. 9092231 - Terminal device and image forming apparatus to solve printing error and method of solving printing error thereof (2015-07-28),
11. 8897617 - Digital image capturing apparatus and method of controlling the same (2014-11-25),
12. 8866751 - Display device and method of driving the same (2014-10-21),
13. 8865503 - Back contacting solar cell having P-doped regions and N-doped regions at the same layer and manufacturing method thereof (2014-10-21),
14. 8831474 - Developing device and image forming apparatus including the same (2014-09-09),
15. 8765290 - Rechargeable battery with terminal junction and prong (2014-07-01),

Title: Innovations of Sang-jin Park in Electrophotography and Battery Technology

Introduction

Sang-jin Park is a prolific inventor based in Yongin-si, South Korea, with an impressive portfolio of 72 patents to his name. His innovations primarily focus on electrophotographic image forming apparatuses and battery technology, contributing significantly to advancements in these fields.

Latest Patents

One of Sang-jin Park's notable patents includes a novel electrophotographic image forming apparatus, designed to operate with both an imaging cartridge and a toner cartridge that are easily detachable from the main body. This apparatus is equipped with a first optical sensor for detecting toner levels within the development chamber and a second optical sensor integrated into the toner cartridge for an accurate assessment of toner levels. Furthermore, his inventions also cover a sophisticated battery pack that incorporates a battery cell housed in a can, featuring an electrode assembly and a protective circuit module. The design ensures safety and efficiency, with a recessed interference preventing portion to enhance durability in connection points.

Career Highlights

Sang-jin Park has made significant contributions while working at leading companies in the technology sector, including Samsung Electronics Co., Ltd. and Samsung SDI Co., Inc. His work has propelled innovations that have not only improved product functionality but have also set new standards within the industry.

Collaborations

Throughout his career, Sang-jin Park has collaborated with various professionals, including notable coworkers like Tae-wan Kim and Kwang-soo Seol. Their combined expertise and innovative spirit have played a critical role in pushing the boundaries of technology and invention.

Conclusion

Sang-jin Park's extensive patent portfolio and significant contributions to electrophotographic technology and battery design underscore his role as a vital figure in modern technological innovations. His continued work in these fields promises to drive further advancements and inspire future inventors.

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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