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For the Inventor, By the Inventor

Yokkaichi, Japan

Tomohiro Kubo

USPTO Granted Patents = 11 

Average Co-Inventor Count = 2.3

ph-index = 5

Forward Citations = 209(Granted Patents)


Company Filing History:

goldMedal11 out of 4,519 
 
Sandisk Technologies Inc.
 patents

Years Active: 2016-2025

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11 patents (USPTO):
1. 12476186 - Three-dimensional memory device containing integrated contact-and-support assemblies and methods of making the same (2025-11-18),
2. 12354955 - Three-dimensional memory device with high contact via density and methods of forming the same (2025-07-08),
3. 12347492 - Three-dimensional memory device with high contact via density and methods of forming the same (2025-07-01),
4. 12094943 - Three-dimensional memory device including hammerhead-shaped word lines and methods of manufacturing the same (2024-09-17),
5. 11963354 - Three-dimensional memory device with dielectric or semiconductor wall support structures and method of forming the same (2024-04-16),
6. 11322440 - Three-dimensional memory device with dielectric wall support structures and method of forming the same (2022-05-03),
7. 10748927 - Three-dimensional memory device with drain-select-level isolation structures and method of making the same (2020-08-18),
8. 10658377 - Three-dimensional memory device with reduced etch damage to memory films and methods of making the same (2020-05-19),
9. 10381362 - Three-dimensional memory device including inverted memory stack structures and methods of making the same (2019-08-13),
10. 10304852 - Three-dimensional memory device containing through-memory-level contact via structures (2019-05-28),
11. 9524977 - Metal-semiconductor alloy region for enhancing on current in a three-dimensional memory structure (2016-12-20),

Title: Innovations of Tomohiro Kubo in Three-Dimensional Memory Devices

Introduction

Tomohiro Kubo, an accomplished inventor based in Yokkaichi, Japan, has made significant contributions to the field of memory technology. With a total of 10 patents to his name, Kubo is recognized for innovative designs that push the boundaries of memory device functionality and efficiency.

Latest Patents

Among his notable inventions, Kubo's latest patent involves a three-dimensional memory device with high contact via density and methods of forming the same. This cutting-edge technology features an alternating stack of insulating layers and electrically conductive layers. Within this design, a first three-dimensional memory array is strategically located in one memory array region, while a second array is positioned laterally spaced from the first. The configuration includes trench fill structures and a unique stepped cavity that allows for multiple rows of contact via structures, enhancing the device's overall performance and efficiency.

Career Highlights

Kubo's professional journey is marked by his association with SanDisk Technologies Inc., a leading company in the data storage industry. His work focuses on advancing memory technologies, significantly influencing the design and functionality of modern data storage solutions.

Collaborations

Throughout his career, Kubo has collaborated with distinguished colleagues, including Zhixin Cui and Hirofumi Tokita. These partnerships have fostered a collaborative environment that drives innovation and enhances the development of next-generation memory technologies.

Conclusion

In summary, Tomohiro Kubo's inventive spirit and technical expertise are pivotal in shaping the future of three-dimensional memory devices. With a robust portfolio of patents and collaborations, Kubo continues to contribute to advancements that redefine the capabilities of memory technology in the digital age.

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