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Akihiro Tobioka

USPTO Granted Patents = 16 (Patent Applications = 6)

Average Co-Inventor Count = 1.5

ph-index = 2

Forward Citations = 20(Granted Patents)

Location History:

Yokkaichi, JP (2016 - 2023)
Nagoya, JP (2020 - 2024)

Company Filing History:

15 out of 4,573

Sandisk Technologies Inc.

patents

1 out of 5,318

Western Digital Technologies, Inc.

patents

Years Active: 2016-2025

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16 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 12457749 - Three-dimensional memory device with backside support pillar structures and methods of forming the same (2025-10-28),

2. 12456686 - Three-dimensional memory device with multilevel drain-select electrodes and methods for forming the same (2025-10-28),

3. 12408345 - Three-dimensional memory device with backside support pillar structures and methods of forming the same (2025-09-02),

4. 12369319 - Three-dimensional memory device containing dual-depth drain-select-level isolation structures and methods for forming the same (2025-07-22),

5. 12255154 - Three-dimensional memory device with orthogonal memory opening and support opening arrays and method of making thereof (2025-03-18),

6. 12010842 - Method of forming a stepped surface in a three-dimensional memory device and structures incorporating the same (2024-06-11),

7. 11844222 - Three-dimensional memory device with backside support pillar structures and methods of forming the same (2023-12-12),

8. 11749600 - Three-dimensional memory device with hybrid staircase structure and methods of forming the same (2023-09-05),

9. 11569139 - Electrical overlay measurement methods and structures for wafer-to-wafer bonding (2023-01-31),

10. 11495612 - Three-dimensional memory device including stairless word line contact structures for and method of making the same (2022-11-08),

11. 11450679 - Three-dimensional memory device including stairless word line contact structures for and method of making the same (2022-09-20),

12. 11189637 - Three-dimensional memory array including self-aligned dielectric pillar structures and methods of making the same (2021-11-30),

13. 10861871 - Three-dimensional memory array including self-aligned dielectric pillar structures and methods of making the same (2020-12-08),

14. 10274841 - Reticle with reduced transmission regions for detecting a defocus condition in a lithography process (2019-04-30),

15. 9810916 - Reticle with reduced transmission regions for detecting a defocus condition in a lithography process (2017-11-07),

Title: Akihiro Tobioka: Innovator in Three-Dimensional Memory Device Technology

Introduction

Akihiro Tobioka, an accomplished inventor from Yokkaichi, Japan, has made significant contributions to the field of memory device technology. With a total of 12 patents to his name, he has been at the forefront of innovations that enhance the performance and efficiency of memory systems.

Latest Patents

Tobioka’s latest patents showcase his expertise in three-dimensional memory devices. One notable invention is the "Three-dimensional memory device with orthogonal memory opening and support opening arrays and method of making thereof." This innovation involves creating an alternating stack of insulating and electrically conductive layers over a substrate, where memory and support openings are systematically arranged in distinct hexagonal arrays.

Another of his recent patents is the "Method of forming a stepped surface in a three-dimensional memory device and structures incorporating the same." This method outlines a process that includes the formation of alternating stacks of insulating and sacrificial materials, followed by intricate etching processes that allow for recess trenches or via cavities to be created within the memory device. These advancements significantly improve the design and functionality of three-dimensional memory technologies.

Career Highlights

Throughout his career, Tobioka has worked with prestigious companies such as SanDisk Technologies Inc. and Western Digital Technologies, Inc. His roles in these organizations have allowed him to develop his innovative ideas while collaborating with some of the brightest minds in the field.

Collaborations

Among Tobioka's notable colleagues are Koichi Ito and Yoshinobu Tanaka, with whom he has shared valuable insights and worked on advancing memory device technologies. Such collaborations have undoubtedly fueled the innovative spirit behind his patents and contributed to the overall progress in the industry.

Conclusion

Akihiro Tobioka stands out as a leading inventor in the realm of memory devices, with a focus on creating innovative solutions through his extensive patent portfolio. His work continues to shape the future of memory technology, making significant strides in the efficiency and capacity of data storage solutions.

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