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For the Inventor, By the Inventor

Yokohama, Japan

Koki Ueno

This inventor holds 41 USPTO granted patents and 2 published patent applications, primarily in Semiconductor Memory. Top assignees: Kabushiki Kaisha Toshiba, Toshiba Memory Corporation, Kioxia Corporation. Active years: 2006-2025.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Koki Ueno. Retrieved from https://idiyas.com/inventor/koki-ueno

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

USPTO Granted Patents = 41 

% Patents Active = 80.5

Average Co-Inventor Count = 2.3

ph-index = 9

Forward Citations = 207(Granted Patents)


Location History:

  • Kanagawa, JP (2018 - 2020)
  • Yokohama, JP (2006 - 2023)
  • Yokohama Kanagawa, JP (2019 - 2024)

Company Filing History:

goldMedal27 out of 53,262 
 
Kabushiki Kaisha Toshiba
 patents
silverMedal10 out of 2,955 
 
Toshiba Memory Corporation
 patents
bronzeMedal4 out of 3,189 
 
Kioxia Corporation
 patents

Years Active: 2006-2025

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Areas of Expertise:
Nonvolatile Memory
Semiconductor Device
Memory Cell Array
Control Circuit
Memory Controller
Electrically-Rewritable
Storage Device
Programming Method
Voltage Control
Isolation Region
Read Operations
41 patents (USPTO):Explore Patents
1. 12322454 - Nonvolatile semiconductor memory device including a memory cell array and a control circuit applying a reading voltage (2025-06-03),
2. 12068040 - Nonvolatile semiconductor memory device including a memory cell array and a control circuit applying a reading voltage (2024-08-20),
3. 11817155 - Nonvolatile semiconductor memory device including a memory cell array and a control circuit applying a reading voltage (2023-11-14),
4. 11621041 - Nonvolatile semiconductor memory device including a memory cell array and a control circuit applying a reading voltage (2023-04-04),
5. 11004520 - Nonvolatile semiconductor memory device including a memory cell array and a control circuit applying a reading voltage (2021-05-11),
6. 10818362 - Nonvolatile semiconductor memory device including a memory cell array and a control circuit applying a reading voltage (2020-10-27),
7. 10803950 - Memory device and memory controller (2020-10-13),
8. 10783975 - Semiconductor memory device (2020-09-22),
9. 10490286 - Electrically-rewritable nonvolatile semiconductor memory device (2019-11-26),
10. 10410725 - Memory device and a method for programming memory cell transistors (2019-09-10),
11. 10347338 - Memory device and memory controller (2019-07-09),
12. 10186321 - Nonvolatile semiconductor memory device (2019-01-22),
13. 10109353 - Memory device (2018-10-23),
14. 9947415 - Nonvolatile semiconductor memory device having a control circuit that controls voltage applied to non-selected word lines connected to unselected memory cells (2018-04-17),
15. 9691489 - Nonvolatile semiconductor memory device with first and second read operations with different read voltages (2017-06-27),

Title: **Koki Ueno - Innovator in Nonvolatile Semiconductor Memory Technology**

Introduction

Koki Ueno is a renowned inventor based in Yokohama, Japan, specializing in semiconductor technology. With a remarkable portfolio that includes 40 patents, Ueno has significantly contributed to the field of nonvolatile semiconductor memory devices.

Latest Patents

Among his latest innovations is a nonvolatile semiconductor memory device that features a memory cell array and a control circuit capable of applying varying reading voltages. This invention encompasses two distinct reading operations: the first involves reading a threshold voltage in a selected memory cell by adjusting the voltage between a control gate electrode and the source. The second operation, set at a lower voltage, continues to maintain the control gate electrode at zero or a positive voltage during the reading process. This technology enhances memory performance and increases efficiency in data retrieval.

Career Highlights

Throughout his career, Koki Ueno has worked with prominent companies, particularly with Toshiba Corporation and Toshiba Memory Corporation. His expertise in semiconductor technologies has propelled advancements in memory devices, showcasing his innovative spirit.

Collaborations

Ueno has also collaborated with notable colleagues, including Yasuhiro Shiino and Eietsu Takahashi. Their combined expertise has fostered a productive environment, leading to several successful patent applications and cutting-edge inventions in the semiconductor sector.

Conclusion

Koki Ueno's contributions to the field of nonvolatile semiconductor memory devices demonstrate his commitment to innovation and technological advancement. With a strong career defined by successful collaborations and numerous patents, Ueno continues to influence the future of memory technologies and remains a key figure within the industry.

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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