Company Filing History:
Years Active: 1994-2007
Title: Seijiro Ishizuka: Innovator in Communication Technology
Introduction
Seijiro Ishizuka is a prominent inventor based in Tokyo, Japan. He has made significant contributions to the field of communication technology, holding a total of 7 patents. His innovative work has been instrumental in advancing the capabilities of mobile communication systems.
Latest Patents
One of Ishizuka's latest patents is a receiving apparatus designed to appropriately select one out of a plurality of antennae for reception. This apparatus includes a reception means for receiving radio waves via an antenna selected by a selection means. It also features a reception level signal creation means that generates a signal indicative of the reception electric field strength. Additionally, an extraction means eliminates basic wave components from the reception level signal, creating a multiple propagating wave strength signal. The reception level signal correction means then corrects the reception level signal using this multiple propagating wave strength signal. The antenna selection means subsequently selects the antenna with the highest corrected reception level signal.
Another notable patent involves a mobile telephone system that transmits a mobile's positional data to a base station. In this system, the base station calculates distances to respective mobile stations and transmits these distances. A control station determines the positions of the mobile stations based on the distances between multiple base stations and the mobile stations. The control station also stores identification codes for specific mobile stations and checks for the existence of other mobile stations with the same identification code within a designated range.
Career Highlights
Seijiro Ishizuka is currently employed at Sony Corporation, a leading company in the technology and entertainment sectors. His work at Sony has allowed him to explore and develop innovative solutions in communication technology.
Collaborations
Ishizuka has collaborated with notable coworkers, including Kazuto Kitakubo and Masatoshi Kozera. Their combined expertise has contributed to the successful development of various projects within the company.
Conclusion
Seijiro Ishizuka's contributions to communication technology through his patents and work at Sony Corporation highlight his role as an influential inventor. His innovative solutions continue to shape the future of mobile communication systems.
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.