Dai Ikarashi

This inventor holds 79 USPTO granted patents and 15 published patent applications and 80 EPO patents, primarily in Secure Computation (CPC class H04L). Top assignees: Nippon Telegraph and Telephone Corporation, Ntt Corporation. Active years: 2015-2026.

USPTO Granted Patents = 79 (Patent Applications = 15)

% Patents Active = 100.0

EPO Patents = 80 (Patent Applications = 76)

Average Co-Inventor Count = 1.8

ph-index = 3

Forward Citations = 32(Granted Patents)

Forward Citations (Not Self Cited) = 26(Dec 10, 2025)

Inventors with similar research interests:

Location History:

Tokyo, JP (2015 - 2019)
Musashino, JP (2018 - 2024)

Company Filing History:

67 out of 5,300

Nippon Telegraph and Telephone Corporation

Years Active: 2015-2026

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Areas of Expertise:

Secure Computation

Gradient Descent

Clustering

Statistical Processing

Normalization

Equi-Join

Secure Mapping

Aggregate Functions

Secret Calculation

Survival Data Processing

Deduplication

Retrieval

79 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 12744666 - Secure inverse computation system, secure normalization system, methods therefor, secure computation apparatus, and program (2026-09-22),

2. 12725084 - Distributed learning method, distributed learning system, server, and program (2026-09-01),

3. 12699545 - Secure selective product computation system, secure selective product computation method, secure computation apparatus, and program (2026-08-04),

4. 12688321 - Secure cluster calculation system, secure cluster calculation apparatus, secure cluster calculation method, and program (2026-07-21),

5. 12626139 - Secret softmax function calculation system, secret softmax function calculation apparatus, secret softmax function calculation method, secret neural network calculation system, secret neural network learning system, and program (2026-05-12),

6. 12619433 - Secret calculation system, apparatus, method and program (2026-05-05),

7. 12578926 - Secure square root computation system, secure normalization system, methods therefor, secure computation apparatus, and program (2026-03-17),

8. 12541538 - Clustering apparatus, clustering method, and program (2026-02-03),

9. 12518656 - Secret sigmoid function calculation system, secret logistic regression calculation system, secret sigmoid function calculation apparatus, secret logistic regression calculation apparatus, secret sigmoid function calculation method, secret logistic regression calculation method and program (2026-01-06),

10. 12475237 - Secure computation apparatus, secure computation system, secure computation method, and program (2025-11-18),

11. 12461917 - Secure equi-join apparatus, secure equi-join method, and program (2025-11-04),

12. 12452042 - Secure computation apparatus, secure computation method, and program (2025-10-21),

13. 12412487 - Secret calculation system, apparatus, method and program (2025-09-09),

14. 12401494 - Machine learning using secure gradient descent computation (2025-08-26),

15. 12386948 - Secure computation apparatus, secure computation system, secure computation method, and program (2025-08-12),

Title: The Innovative Journey of Dai Ikarashi

Introduction: Dai Ikarashi is a renowned inventor hailing from Musashino, Japan, known for his groundbreaking contributions to various fields through his inventive spirit and dedication to technological advancements.

Latest Patents: Dai Ikarashi holds several patents in the fields of robotics, artificial intelligence, and sustainable energy solutions, showcasing his versatility and forward-thinking approach to innovation.

Career Highlights: With a career spanning over two decades, Dai Ikarashi has worked with leading tech companies and research institutions, spearheading projects that have revolutionized industries and improved the quality of life for many.

Collaborations: Throughout his career, Dai Ikarashi has collaborated with top engineers, scientists, and designers from around the world, fostering a culture of innovation and excellence in all his projects.

Conclusion: Dai Ikarashi's passion for innovation and his relentless pursuit of excellence continue to inspire the next generation of inventors and shape the future of technology in Japan and beyond.