This inventor holds 40 USPTO granted patents, primarily in Digital Communication. Top assignees: Hitachi, Ltd., Hitachi Denshi Kabushiki Kaisha, Hitachi-Kokusai Electric Inc.. Active years: 1980-2006.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Location History:
- Kokubunji, JP (1980 - 1981)
- Hachioji, JP (1983)
- Kodaira, JP (1983 - 1988)
- Tokorozawa, JP (1989 - 2006)
Company Filing History:
27 out of 42,740 
11 out of 208 
3 out of 1,258 
Years Active: 1980-2006
Areas of Expertise:
Title: Toshiyuki Akiyama: A Pioneer in Signal Transmission Technologies
Introduction
Toshiyuki Akiyama is a prominent inventor from Tokorozawa, Japan, known for his innovative contributions to signal transmission technologies. With an impressive portfolio of 40 patents, he has significantly advanced the fields of communication and digital modulation.
Latest Patents
Akiyama's recent work includes groundbreaking patents that focus on orthogonal frequency division multiplexing (OFDM) systems. One of his notable inventions is a signal transmission/reception system that features a transmission apparatus capable of multiplexing multiple orthogonal carriers to efficiently transmit modulated signals. This apparatus incorporates two modulators, each utilizing different modulation schemes, and a distributing circuit that allocates coded signals to various carriers within a defined frequency band.
Another significant patent introduced a digital modulation type signal transmission apparatus, which leverages an I-Q complex plane to assign information codes to specific signal points. This system effectively transmits and demodulates signals, ensuring a precise reproduction of the original information codes.
Career Highlights
Throughout his career, Akiyama has contributed his expertise to major companies, including Hitachi, Ltd. and Hitachi Denshi Kabushiki Kaisha. His work at these reputable organizations has provided a solid foundation for his innovative pursuits in electronics and telecommunications.
Collaborations
Akiyama has collaborated with notable colleagues in the industry, including Naoki Ozawa and Kenji Takahashi. Through these partnerships, he has continued to push the boundaries of technology and foster innovation in signal processing.
Conclusion
Toshiyuki Akiyama's work exemplifies the transformative power of innovation in the tech industry. His extensive patent portfolio reflects a commitment to advancing the field of signal transmission, which has had a lasting impact on communication technologies. As he continues to develop new solutions, Akiyama remains an influential figure in the realm of telecommunications.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile