Kanagawa, Japan

Toshitada Doi

This inventor holds 24 USPTO granted patents, primarily in Digital Signal Processing. Top assignees: Sony Corporation, Willi Studer Ag. Active years: 1976-2007.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Toshitada Doi. Retrieved from https://idiyas.com/inventor/toshitada-doi

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile


% Patents Active = 100.0

Average Co-Inventor Count = 2.0

ph-index = 14

Forward Citations = 673(Granted Patents)


Location History:

  • Yokohama, JA (1976 - 1978)
  • Yokohama, JP (1978 - 1982)
  • Tokyo, JP (1983)
  • Kanagawa, JP (1982 - 2007)

Company Filing History:


Years Active: 1976-2007

Loading Chart...
Areas of Expertise:
Digital Signal Transmission
Error Correction
Information Processing
Data Recording
PCM Signals
Encoding Methods
Sound Reproduction
Fluid Flow Control
Transistor Amplifier
Data Supplying
Stereophonic Sound
Binaural Pickup
24 patents (USPTO):Explore Patents

Title: Innovations and Contributions of Toshitada Doi

Introduction

Toshitada Doi, a prominent inventor based in Kanagawa, Japan, has made significant contributions to the field of technology. With a remarkable portfolio that includes 24 patents, Doi's work has focused on advancing information processing systems and enhancing data security across networks. His innovative solutions reflect a deep understanding of both consumer needs and technical challenges.

Latest Patents

Among Doi's latest patents is the "Content Selection System," which introduces a client-server model where a client transmits speech information to a server that prepares content selection based on the received data. This system improves the way users retrieve information tailored to their speech inputs and enhances their overall experience. Another notable patent is related to an "Information Processing Apparatus, Information Processing Method, Data Recording Medium, and Information Processing System," which aims to safeguard transmitted information against illegal copying. This technology multiplexes identification information with input data to ensure the integrity and security of data as it moves through a network.

Career Highlights

Doi has had a fruitful career, having worked with prominent companies such as Sony Corporation and Willi Studer AG. His experience in these organizations has played a crucial role in shaping his technical expertise and innovative mindset, allowing him to lead various projects that focus on cutting-edge technology and practical applications in the consumer electronics space.

Collaborations

Throughout his career, Toshitada Doi has collaborated with talented individuals like Akira Iga and Makoto Ishii. These partnerships have fostered an environment of innovation, allowing for the exchange of ideas and development of groundbreaking technologies that have propelled the industry forward.

Conclusion

Toshitada Doi's contributions to technology, particularly in information processing and security, have positioned him as a key figure in his field. With a significant number of patents to his name and a record of collaboration with esteemed colleagues and companies, Doi continues to be a driving force in innovation, shaping the future of technology. His work not only enhances user experience but also sets new standards for data protection in an increasingly digital world.

Profile summary based on public USPTO records.
Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]
Loading…