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For the Inventor, By the Inventor

Tokyo, Japan

Tsuyoshi Katayose

This inventor holds 10 USPTO granted patents. Top assignee: Nec Corporation. Active years: 1990-1996.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Tsuyoshi Katayose. Retrieved from https://idiyas.com/inventor/tsuyoshi-katayose

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

USPTO Granted Patents = 10

% Patents Active = 100.0

Average Co-Inventor Count = 1.8

ph-index = 7

Forward Citations = 218(Granted Patents)


Company Filing History:

goldMedal10 out of 36,718 
 
Nec Corporation
 patents

Years Active: 1990-1996

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10 patents (USPTO):Explore Patents
1. 5561816 - Data transfer controlling device for use in a direct memory access (DMA) (1996-10-01),
2. 5497501 - DMA controller using a predetermined number of transfers per request (1996-03-05),
3. 5408643 - Watchdog timer with a non-masked interrupt masked only when a watchdog (1995-04-18),
4. 5325489 - Data transfer control device using direct memory access (1994-06-28),
5. 5291606 - Interrupt control unit (1994-03-01),
6. 5287471 - Data transfer controller using direct memory access method (1994-02-15),
7. 5235682 - Port output controller for use in microcomputer (1993-08-10),
8. 5220585 - Serial clock generating circuit (1993-06-15),
9. 4989223 - Serial clock generating circuit (1991-01-29),
10. 4930068 - Data processor having different interrupt processing modes (1990-05-29),

Title: Tsuyoshi Katayose: Innovator in Data Transfer Technology

Introduction

Tsuyoshi Katayose is a prominent inventor based in Tokyo, Japan. He has made significant contributions to the field of data transfer technology, holding a total of 10 patents. His work focuses on enhancing the efficiency and speed of data transfer processes, particularly in direct memory access (DMA) systems.

Latest Patents

Among his latest innovations, Katayose has developed a data transfer controlling device for use in a direct memory access (DMA). This device includes a transfer number data storage, a transfer number updating decrementer, and a DMA execution control section. It automatically sets the number of transfers for subsequent DMA requests, allowing for high-speed responses to peripheral device requests. Another notable patent involves a data transfer controller that enhances DMA transfer efficiency by performing a predetermined number of transfers for each request from a peripheral unit. This controller utilizes multiple registers to manage address information and transfer counts, ensuring that data is efficiently moved between memory and peripheral units.

Career Highlights

Katayose is currently employed at NEC Corporation, where he continues to innovate in the field of data transfer technology. His work has been instrumental in advancing the capabilities of DMA systems, making them more responsive and efficient.

Collaborations

Throughout his career, Katayose has collaborated with notable colleagues, including Yukio Maehashi and Yuko Mitsuhira. These partnerships have contributed to the development of cutting-edge technologies in the data transfer domain.

Conclusion

Tsuyoshi Katayose's contributions to data transfer technology have established him as a key figure in the field. His innovative patents and collaborations continue to influence advancements in DMA systems, showcasing his commitment to enhancing data transfer efficiency.

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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