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For the Inventor, By the Inventor

Tokyo, Japan

Osamu Matsushima

This inventor holds 9 USPTO granted patents. Top assignee: Nec Corporation. Active years: 1990-1997.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Osamu Matsushima. Retrieved from https://idiyas.com/inventor/osamu-matsushima

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

USPTO Granted Patents = 9

% Patents Active = 100.0

Average Co-Inventor Count = 2.0

ph-index = 7

Forward Citations = 142(Granted Patents)


Company Filing History:

goldMedal9 out of 36,718 
 
Nec Corporation
 patents

Years Active: 1990-1997

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9 patents (USPTO):Explore Patents
1. 5649219 - Microcomputer having a region definable by user (1997-07-15),
2. 5410715 - Interrupt controller with selectable interrupt nesting function (1995-04-25),
3. 5381529 - Shift register with dual clock inputs for receiving and sending (1995-01-10),
4. 5208781 - Memory device with standby function (1993-05-04),
5. 5163150 - Information processor performing interrupt operation without saving (1992-11-10),
6. 5159688 - Information processor performing interrupt operation in two modes (1992-10-27),
7. 5036458 - Information processor executing interruption program without saving (1991-07-30),
8. 4996639 - Data processor including an A/D converter for converting a plurality of (1991-02-26),
9. 4964141 - Serial data processor capable of transferring data at a high speed (1990-10-16),

Title: Osamu Matsushima: Innovator in Microcomputer Technology

Introduction

Osamu Matsushima is a prominent inventor based in Tokyo, Japan. He has made significant contributions to the field of microcomputer technology, holding a total of 9 patents. His innovative work has paved the way for advancements in system debugging and interrupt control.

Latest Patents

Matsushima's latest patents include a microcomputer having a region definable by the user. This invention allows for system debugging using a gate array provided outside the microcomputer. By supplying signals transferred between the CPU and the gate array to external terminals, it enables effective communication with peripheral devices. Additionally, he has developed an interrupt controller with a selectable interrupt nesting function. This controller holds information on priority levels for multiple interrupt requests and manages how these requests are acknowledged based on their priority.

Career Highlights

Osamu Matsushima is currently employed at NEC Corporation, where he continues to innovate in the field of microcomputers. His work has been instrumental in enhancing the functionality and efficiency of computing systems.

Collaborations

Matsushima has collaborated with notable coworkers, including Yukio Maehashi and Masahiro Nomura. Their combined expertise has contributed to the successful development of various technologies in the microcomputer domain.

Conclusion

Osamu Matsushima's contributions to microcomputer technology through his patents and collaborations highlight his role as a key innovator in the field. His work continues to influence advancements in computing systems and debugging techniques.

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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