Location History:
- Yokohama, JP (2008 - 2011)
- Tokyo, JP (2016)
Company Filing History:
Years Active: 2008-2016
Title: Keiji Machida: Innovator in Mobile Communication Technology
Introduction
Keiji Machida is a prominent inventor based in Yokohama, Japan. He has made significant contributions to the field of mobile communication technology, holding a total of 3 patents. His work focuses on improving the efficiency and reliability of mobile communication systems.
Latest Patents
One of Machida's latest patents is a location information registration method and mobile communication terminal. This invention allows for the prompt registration of location information for mobile communication terminals. When a mobile communication terminal receives a first location registration response signal, it can transmit a location registration request signal to a second mobile communication network if a predefined value indicates a cause for rejecting the registration. This ensures that the terminal can effectively communicate and register its location, even when switching networks.
Another notable patent is related to a mobile communication system, local subscriber information management device, and communication information management method. This invention prevents the unnecessary increase of subscriber information retained by local subscriber information management devices, even as the number of subscribers grows. By selecting and processing relevant subscriber management information, the system can support an increasing number of subscribers without requiring additional capacity for information retention.
Career Highlights
Keiji Machida is currently employed at NTT Docomo, Inc., a leading telecommunications company in Japan. His work at NTT Docomo has allowed him to develop innovative solutions that enhance mobile communication services.
Collaborations
Machida has collaborated with several talented individuals in his field, including Itsuma Tanaka and Yuusuke Okazaki. These collaborations have contributed to the advancement of mobile communication technologies and have fostered a creative environment for innovation.
Conclusion
Keiji Machida is a key figure in the realm of mobile communication technology, with a focus on improving location registration and subscriber management. His contributions through his patents and work at NTT Docomo highlight his commitment to advancing the field. His innovative spirit continues to drive progress in mobile communication systems.