Location History:
- Kawasaki, JP (2006 - 2008)
- Tokyo, JP (2008 - 2013)
Company Filing History:
Years Active: 2006-2013
Title: Yoko Kumagai: Innovator in Public-Key Certificate Validation
Introduction: Yoko Kumagai stands out as a prominent inventor based in Tokyo, Japan, with a remarkable portfolio of seven patents. Her contributions to the field of technology, particularly in the area of public-key certificate validation, are noteworthy and demonstrate her commitment to advancing security protocols in digital communications.
Latest Patents: One of Yoko's latest patents is a "Method, product and apparatus for accelerating public-key certificate validation." This innovative approach allows a validation authority to search and verify paths and certificate revocation lists periodically. By classifying these paths into valid and invalid categories, the validation authority can enhance the efficiency of certificate validity checks. When a request for authenticating the validity of a certificate is received from an end entity, the validation authority is able to quickly determine the certificate's status by referencing either the valid-path database or the invalid-path database. In cases where the corresponding path is not found in either database, the authority can conduct a fresh path search and validation, ensuring timely and accurate authentication.
Career Highlights: Yoko Kumagai has made significant strides in her role at Hitachi Ltd., where her expertise in innovation continues to contribute to the company's advancements. Her portfolio reflects a deep understanding of complex security systems, positioning her as a valuable asset in the tech industry.
Collaborations: Throughout her career, Yoko has collaborated with esteemed colleagues, including Takahiro Fujishiro and Tadashi Kaji. These collaborations have fostered a creative environment that has led to the development of groundbreaking solutions in public-key certificate validation.
Conclusion: Yoko Kumagai's impressive accomplishments in the realm of public-key certificate validation highlight her esteemed role as an inventor. Her continued work at Hitachi Ltd. and collaborative efforts with fellow innovators signify her ongoing commitment to enhancing technological frameworks for secure communication. As the digital landscape evolves, Kumagai's contributions will undoubtedly play a pivotal role in shaping the future of cybersecurity.
Inventor’s Patent Attorneys refers to legal professionals with specialized expertise in representing inventors throughout the patent process. These attorneys assist inventors in navigating the complexities of patent law, including filing patent applications, conducting patent searches, and protecting intellectual property rights. They play a crucial role in helping inventors secure patents for their innovative creations.