San Mateo, CA, United States of America

Tatsuo Yamamoto

This inventor holds 1 USPTO granted patent. Top assignee: Hitachi Semiconductor (America) Inc.. Active years: 2001.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Tatsuo Yamamoto. Retrieved from https://idiyas.com/inventor/tatsuo-yamamoto-2sgm2osk

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

Calculating rank

% Patents Active = 100.0

Average Co-Inventor Count = 2.0

ph-index = 1

Forward Citations = 1(Granted Patents)


Company Filing History:


Years Active: 2001

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1 patent (USPTO):Explore Patents

Title: Innovations of Tatsuo Yamamoto

Introduction

Tatsuo Yamamoto is a notable inventor based in San Mateo, CA (US). He has made significant contributions to the field of technology, particularly in the area of computer peripherals. His innovative work has led to the development of a patent that enhances the efficiency of peripheral devices.

Latest Patents

Yamamoto holds a patent for a "High speed bus interface for peripheral devices." This invention involves a computer that is coupled via a bus to a peripheral device. The peripheral device includes an I/O device portion placed on a single microchip coupled to a process device portion. The I/O device portion features a physical layer in communication with the computer, and a data channel processor in communication with the peripheral device. A single oscillator controls the speed of both components, and each component includes a dedicated frequency divider. The process device portion may be hardware, software, or a combination of both, and can be implemented on a single chip or multiple chips. To reduce pin count, interface controllers may be used to communicate between the I/O device portion and the process device portion across a single channel. Yamamoto has 1 patent to his name.

Career Highlights

Yamamoto is currently employed at Hitachi Semiconductor (America) Inc., where he continues to innovate and contribute to advancements in semiconductor technology. His work has been instrumental in improving the functionality and performance of peripheral devices.

Collaborations

One of his notable coworkers is Motoyasu Tsunoda, with whom he has collaborated on various projects within the company.

Conclusion

Tatsuo Yamamoto's contributions to technology, particularly through his patent for a high-speed bus interface, demonstrate his commitment to innovation in the field of computer peripherals. His work at Hitachi Semiconductor (America) Inc. continues to influence the industry positively.

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]
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