logo

For the Inventor, By the Inventor

San Francisco, CA, United States of America

James K Kai

LinkedIn

This inventor holds 156 USPTO granted patents and 7 published patent applications and 13 EPO patents, primarily in Three-Dimensional Memory (CPC class H01L27-11582). Top assignees: Sandisk Technologies Inc., Sandisk Corporation, Advanced Micro Devices Corporation. Active years: 1998-2026.

IDiyas Innovation Intelligence. (2026). Inventor Profile: James K Kai. Retrieved from https://idiyas.com/inventor/james-k-kai

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

USPTO Granted Patents = 156 

% Patents Active = 77.6

 

Average Co-Inventor Count = 4.3

ph-index = 32

Forward Citations = 3,097(Granted Patents)

Forward Citations (Not Self Cited) = 2,709(Dec 10, 2025)


Inventors with similar research interests:

🔬 See more inventors

Location History:

  • San Francisco, CA (US) (1998 - 2003)
  • Fremont, CA (US) (2015 - 2017)
  • Santa Clara, CA (US) (2003 - 2024)

Company Filing History:

goldMedal113 out of 4,962 
 
Sandisk Technologies Inc.
 patents
silverMedal20 out of 1,339 
 
Sandisk Corporation
 patents
bronzeMedal11 out of 13,175 
 
Advanced Micro Devices Corporation
 patents
4. 8 out of 669 
 
Sandisk 3D LLC
 patents
5. 4 out of 150 
 
Silicon Genesis Corporation
 patents

Years Active: 1998-2026

Loading Chart...
Loading Chart...
Areas of Expertise:
Three-Dimensional Memory
Non-Volatile Memory
Semiconductor Die Assembly
Dynamic Word Line Reconfiguration
Memory Device
Isolation Structures
Source Lines
Drain Layers
Contact Via Structures
Ferroelectric Memory
Wafer Bonding
Power Supply Network
156 patents (USPTO):Explore Patents
1. 12740061 - Three-dimensional memory device containing multi-level support bridge structures and methods for forming the same (2026-09-15),
2. 12733484 - Three-dimensional memory device containing multi-level word line contact wells and methods for manufacturing the same (2026-09-08),
3. 12532463 - Three-dimensional memory device with separated source lines and method of making the same (2026-01-20),
4. 12456499 - Three-dimensional memory device including laterally separated source lines and method of making the same (2025-10-28),
5. 12243865 - Bonded semiconductor die assembly containing through-stack via structures and methods for making the same (2025-03-04),
6. 12243593 - Low power read method and a memory device capable thereof (2025-03-04),
7. 12087371 - Preventing erase disturb in NAND (2024-09-10),
8. 11996153 - Three-dimensional memory device with separated contact regions and methods for forming the same (2024-05-28),
9. 11990185 - Dynamic word line reconfiguration for NAND structure (2024-05-21),
10. 11805649 - Three-dimensional memory device with wiggled drain-select-level isolation structure and methods of manufacturing the same (2023-10-31),
11. 11587920 - Bonded semiconductor die assembly containing through-stack via structures and methods for making the same (2023-02-21),
12. 11552094 - Three-dimensional memory device having on-pitch drain select gate electrodes and method of making the same (2023-01-10),
13. 11489043 - Three-dimensional memory device employing thinned insulating layers and methods for forming the same (2022-11-01),
14. 11481154 - Non-volatile memory with memory array between circuits (2022-10-25),
15. 11398496 - Three-dimensional memory device employing thinned insulating layers and methods for forming the same (2022-07-26),

Title: James Kai: Innovator Extraordinaire

Introduction:

Dedicated inventors and innovators play a vital role in shaping the technology landscape, and one such remarkable individual is James Kai. Hailing from Santa Clara, CA, James Kai has established himself as a prolific inventor and contributor to the field of semiconductor technology. With an impressive portfolio of patents and impactful collaborations, his work has made a significant impact on the industry as a whole.

Latest Patents:

James Kai's latest patents showcase his expertise in bonded semiconductor die assembly and three-dimensional memory devices. One such invention involves a bonded assembly that comprises multiple memory dies, each containing alternating stacks of insulating layers and electrically conductive layers. This invention enables efficient memory storage and retrieval, contributing to the advancement of semiconductor technology.

Another notable patent by James Kai involves a three-dimensional memory device with on-pitch drain select gate electrodes. This innovation enhances the performance and reliability of memory opening fill structures, optimizing data storage capabilities. With these recent advancements, Kai continues to push the boundaries of memory technology, facilitating breakthroughs in the semiconductor industry.

Career Highlights:

Throughout his illustrious career, James Kai has made his mark in distinguished companies such as Sandisk Technologies Inc. and Sandisk 3D LLC. At Sandisk Technologies Inc., Kai contributed his expertise to groundbreaking projects, further solidifying the company's position as an industry leader. His work at Sandisk 3D LLC enabled the development and implementation of cutting-edge memory technologies, cementing his reputation as a top innovator in the semiconductor field.

Collaborations:

Collaboration plays a crucial role in the world of innovation, and James Kai has had the privilege to work alongside some brilliant minds. Among his notable coworkers are George Matamis and Vinod Robert Purayath. Together, they have combined their knowledge and skills, fostering a rich environment for creativity and invention. These collaborations have undoubtedly contributed to the success and impact of their collective work.

Conclusion:

James Kai's contributions to the field of semiconductor technology are nothing short of remarkable. With an impressive array of patents and a successful career in renowned companies, he has demonstrated his unwavering commitment to innovation. Kai's advancements in bonded semiconductor die assembly and three-dimensional memory devices have propelled the industry forward. We eagerly anticipate further breakthroughs from this exceptional innovator in the years to come.

(Note: The given article is a creative representation using the provided data and does not reflect the actual accomplishments or career of an individual named James Kai.)

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]
Loading…