Location History:
- Tokyo, JA (1976)
- Tokyo, JP (1981 - 1987)
- Kanagawa, JP (1988 - 2010)
Company Filing History:
16 out of 58,131 
1 out of 5,290 
Years Active: 1976-2010
Title: The Innovations of Masakatsu Toyoshima
Introduction
Masakatsu Toyoshima is a prominent inventor based in Kanagawa, Japan. He has made significant contributions to the field of information technology, holding a total of 16 patents. His work primarily focuses on information distribution systems and radio communication technologies.
Latest Patents
One of Toyoshima's latest patents is an information distribution system. This invention relates to an information delivery system and method, an information transmission apparatus and method, and an information receiving apparatus and method for delivering a digital multi-channel service signal through a satellite and a cable network. A QPSK demodulation circuit demodulates an inputted TS and outputs it to an error correction circuit. The error correction circuit corrects the inputted signal and outputs it to a network information (NIT) conversion circuit. The NIT conversion circuit replaces the NIT for CS waves with NIT for cable TV and outputs it to a QAM demodulation circuit. The QAM demodulation circuit demodulates the inputted signal and outputs it to a frequency conversion circuit. The frequency conversion circuit converts the frequency of the inputted signal into a predetermined value and outputs the signal to a signal mixer.
Another notable patent is related to a radio communication system, along with the apparatus, method, and computer program for said radio communication system. This communication system permits the coexistence of a plurality of ultrawide band (UWB) radio communication networks that use different signal systems. It achieves this by using the same beacon signal and specifying the format of part of the control command among a plurality of UWB radio communication networks that use different signal systems, as defined by impulse period, impulse width, spreading ratio, and spreading code. When one UWB network receives a beacon signal from another UWB network, it grasps, judging from the received beacon signal, the transmission parameter that is used by another party and performs time-division on the transmission frame period for its own system.
Career Highlights
Throughout his career, Masakatsu Toyoshima has worked with notable companies such as Sony Corporation and Nippon Telegraph and Telephone Corporation. His experience in these leading organizations has significantly influenced his innovative contributions to technology.
Collaborations
Toyoshima has collaborated with several talented individuals in his field, including Akira Sakamoto and Takeshi Fukami