Kazuhiro Hosaka

Title: Kazuhiro Hosaka: Inventor of Contactless IC Technologies.

Introduction

Kazuhiro Hosaka is an inventor based in Kawasaki, Japan, whose work includes technologies for contactless integrated circuits and portable terminal units. He is associated with Fujitsu Corporation and is credited with 2 patents.

Latest Patents

Hosaka’s listed patents address controlling access to contactless IC functions and data.

“Non-contact IC, information processing apparatus, reader/writer, and use restriction method” describes a contactless IC that communicates wirelessly with a reader/writer. When it receives a command to restrict use, the IC enters a restricted state in which it cannot exchange information with a reader/writer.

“Portable terminal unit” concerns using an IC privacy function to conceal data areas associated with particular services. By making a service’s data area appear not to exist, the system can prevent access to the data needed for that service and restrict use of the contactless IC card on a service-by-service basis.

Career Highlights

Hosaka’s patent work focuses on contactless IC technology, including wireless communication, privacy controls, and selective restrictions on card use. His listed affiliation is Fujitsu Corporation.

Collaborations

Hiroyuki Nakatsugawa and Hiroko Saito are identified as Hosaka’s coworkers.

Conclusion

Kazuhiro Hosaka’s listed inventions explore ways to manage contactless IC communication and protect service-specific data, reflecting his contributions to patentable technologies associated with Fujitsu Corporation.