This inventor holds 6 USPTO granted patents and 3 EPO patents. Top assignee: Nippon Telegraph and Telephone Corporation. Active years: 2009-2014.
Company Filing History:
Years Active: 2009-2014
Title: Innovations of Kei Karasawa
Introduction
Kei Karasawa is a notable inventor based in Tokyo, Japan. He has made significant contributions to the field of technology, particularly in user authentication and certificate issuing methods. With a total of 6 patents to his name, his work has had a considerable impact on secure communications.
Latest Patents
Karasawa's latest patents include a certificate authenticating method, a certificate issuing device, and an authentication device. The certificate issuing device operates by transmitting a certificate issue request that includes a communication ID and a sub ID to a certificate issuing device via a first network. The device checks the validity of the communication ID and its association with the sub ID before generating a certificate that includes essential identifiers and a validity period. This innovative approach allows for the issuance of certificates with short validity periods based solely on access to the network using the provided IDs. Additionally, his user authentication system involves registering a certification authority's identifier and generating a terminal certificate that facilitates secure user authentication through established protocols.
Career Highlights
Throughout his career, Kei Karasawa has worked with prominent companies such as Nippon Telegraph and Telephone Corporation and Nippon Telegraph & Telephone Co. His experience in these organizations has contributed to his expertise in developing advanced technological solutions.
Collaborations
Karasawa has collaborated with notable individuals in the field, including Yukio Tsuruoka and Kenji Takahashi. These partnerships have likely enhanced his innovative capabilities and broadened the scope of his inventions.
Conclusion
Kei Karasawa's contributions to technology through his patents and collaborations highlight his role as a significant inventor in the field of secure communications. His work continues to influence advancements in user authentication and certificate issuing methods.