Inventors with similar research interests:
Location History:
- Yamato, JA (1976 - 1978)
- Yamato, JP (1979 - 1981)
- Yokohama, JP (1980 - 1983)
- Machide, JP (1989)
- Machida, JP (1982 - 1990)
- Tokyo, JP (1985 - 1990)
- Miura, JP (1992 - 1998)
Company Filing History:
52 out of 2,887 
4 out of 27,375 
Years Active: 1976-1998
Title: Yukinobu Ishigaki: Pioneering Innovator in Communication Technology
Introduction:
Yukinobu Ishigaki has made significant contributions to the field of communication technology with his groundbreaking inventions and numerous patents. With a strong background in engineering, Ishigaki has successfully developed novel solutions that have advanced spread spectrum communications and frequency converting circuits.
Latest Patents:
One of Ishigaki's recent patents is for a spread spectrum modulating and demodulating apparatus for transmission. This apparatus is capable of providing frequency shift keying (FSK) or phase shift keying (PSK) spread spectrum communications. By utilizing an oscillator, a multiplier, a frequency divider, and a spread code generator, this invention enables efficient spread spectrum modulation and demodulation.
Another notable invention by Ishigaki is a frequency converting circuit. This circuit consists of a phase divider, a switching circuit, and a switching pulse generator. It allows for the synthesis of signals with varying frequencies, based on the phase shifts and frequency differences obtained from multiple input signals.
Career Highlights:
Yukinobu Ishigaki has a prolific career, marked by both his innovations and his affiliations with reputable companies. He has worked on several projects with Victor Company of Japan, Limited, a renowned electronics manufacturer known for its cutting-edge audiovisual products. Ishigaki's contributions to Matsushita Electric Industrial Co., Ltd. (now Panasonic Corporation) also highlight his expertise in developing communication technologies.
Collaborations:
Throughout his career, Ishigaki has collaborated closely with industry peers to bring his ideas to life. His coworker Kazutoshi Hirohashi, known for his expertise in signal processing, has provided valuable insights into the development of Ishigaki's inventions. Likewise, Teruo Muraoka, another collaborator, has contributed to the advancement of his frequency converting circuit.
Conclusion:
Yukinobu Ishigaki stands as an innovative force in the field of communication technology, with 52 patents to his name. Through his spread spectrum modulating and demodulating apparatus and frequency converting circuit, he has demonstrated a deep understanding of signal transmission and manipulation. His collaborations with experienced professionals have further enriched his work, allowing for the development of cutting-edge technologies. Ishigaki's contributions have undoubtedly made a lasting impact on the field and continue to shape the future of communication systems.
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