Kiyose, Japan

Shigemi Okumura

This inventor holds 3 USPTO granted patents. Top assignee: Hitachi, Ltd.. Active years: 1989-1994.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Shigemi Okumura. Retrieved from https://idiyas.com/inventor/shigemi-okumura

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 = 2.9

ph-index = 3

Forward Citations = 352(Granted Patents)


Company Filing History:


Years Active: 1989-1994

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3 patents (USPTO):Explore Patents

Title: Shigemi Okumura: Innovator in Electronic Mail Systems

Introduction

Shigemi Okumura is a notable inventor based in Kiyose, Japan. He has made significant contributions to the field of electronic mail systems, holding a total of 3 patents. His work focuses on enhancing the efficiency and functionality of electronic communication.

Latest Patents

Okumura's latest patents include a system for notifying a destination terminal that electronic mail has arrived. This mail-receive noticing system and method automatically informs a destination terminal when an electronic mail reaches a host computer. The system features a mail-sending terminal that includes a mail-receiving notice instructing device. This device accepts instructions from the sender based on the urgency or importance of the mail. Additionally, the host computer processes these instructions to generate a mail-receiving notice indication, which is sent to the receiving terminal. The destination terminal then uses this indication to inform the user about the arrival of the electronic mail in a manner that reflects its urgency or importance.

Another significant patent is related to a virtual computer system. This virtual machine system operates with a processor functioning as a base machine, which includes multiple groups of registers. These registers are selected based on identification data that identifies individual virtual machines. Each virtual machine is allotted a respective group of registers, and the system includes a status register file for selective access to these registers. An interrupt processing portion is also provided to manage interrupt processing effectively.

Career Highlights

Shigemi Okumura is associated with Hitachi, Ltd., a leading technology company known for its innovative solutions. His work at Hitachi has allowed him to contribute to advancements in electronic mail systems and virtual computing.

Collaborations

Okumura has collaborated with notable coworkers, including Toshio Hirosawa and Junichi Kurihara. These collaborations have further enriched his work and contributed to the development of innovative technologies.

Conclusion

Shigemi Okumura's contributions to electronic mail systems and virtual computing highlight his role as a significant inventor in the technology sector. His patents reflect a commitment to improving communication efficiency and functionality.

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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