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For the Inventor, By the Inventor

Tokyo, Japan

Masakazu Kakumu

USPTO Granted Patents = 21 

Average Co-Inventor Count = 3.1

ph-index = 1

Forward Citations = 4(Granted Patents)


Company Filing History:

goldMedal21 out of 346 
 
Unisantis Electronics Singapore Pte. Ltd.
 patents

Years Active: 2023-2025

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21 patents (USPTO):Explore Patents
1. 12477716 - Memory device with stacked body orthogonal to substrate and method using write and ease page refresh operations (2025-11-18),
2. 12437805 - Semiconductor device including memory element (2025-10-07),
3. 12419032 - Memory device including semiconductor element (2025-09-16),
4. 12419031 - Semiconductor-element-including memory device (2025-09-16),
5. 12396154 - Memory device using semiconductor element (2025-08-19),
6. 12369301 - Memory device with semiconductor elements (2025-07-22),
7. 12369300 - Semiconductor memory device (2025-07-22),
8. 12363883 - Memory device using semiconductor element (2025-07-15),
9. 12362006 - Semiconductor-element-including memory device (2025-07-15),
10. 12362005 - Semiconductor memory device (2025-07-15),
11. 12317478 - Semiconductor memory device (2025-05-27),
12. 12315544 - Semiconductor-element-including memory device (2025-05-27),
13. 12302548 - Memory device using semiconductor element (2025-05-13),
14. 12283310 - Memory device with single-transistor DRAM cells with no capacitors, and memory cells stacked in the vertical direction using gate-all-around (GAA) technology (2025-04-21),
15. 12283306 - Memory device including semiconductor (2025-04-21),

Title: Innovative Mind: The Patents of Masakazu Kakumu

Introduction

Masakazu Kakumu, based in Tokyo, Japan, is a notable inventor recognized for his contributions to semiconductor technology. With an impressive portfolio of 16 patents, he has been instrumental in the advancement of memory devices, specifically within the dynamic flash memory landscape.

Latest Patents

Kakumu's latest inventions demonstrate his ingenuity in memory technology. One of his notable patents is a memory device with semiconductor elements, which includes a dynamic flash memory featuring a p layer as a semiconductor base material, nlayers positioned on either side, and gate insulating layers that facilitate electrical isolation. His advancements include detailed processes where specific voltages are applied during writing, erasing, and reading operations, ensuring efficient memory functionality.

Another significant patent is a semiconductor memory device that integrates a horizontally extending p layer separate from the substrate, alongside n+ and n layers on either side. This design innovatively manipulates voltage across various lines, allowing for precise control during memory operations of a dynamic flash memory cell.

Career Highlights

Masakazu Kakumu’s career is marked by his dedication to pioneering memory technology. His role at Unisantis Electronics Singapore Pte. Ltd. has provided him with a platform to develop these cutting-edge inventions. Through his efforts, he has contributed significantly to the field of semiconductor memory.

Collaborations

Throughout his career, Kakumu has worked alongside notable colleagues such as Nozomu Harada and Koji Sakui. Their collaboration has fostered an environment of innovation, collectively working towards advancements in semiconductor technologies.

Conclusion

Masakazu Kakumu stands out as a prominent figure in the world of invention, particularly in the realm of memory devices. His inventive spirit and partnership with talented colleagues at Unisantis Electronics Singapore Pte. Ltd. continue to drive innovation in semiconductor technology, securing his place as a significant contributor in this ever-evolving field.

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