This inventor holds 2 USPTO granted patents. Top assignees: Hitachi, Ltd., Other. Active years: 1990-2001.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Company Filing History:
1 out of 42,743 
1 out of 834,601 Years Active: 1990-2001
Title: Kenshi Hirai: Inventor in Printing Systems
Introduction
Kenshi Hirai is an inventor associated with Hadano, Japan. His work includes inventions in printing systems and print control, with 2 patents listed.
Latest Patents
Hirai’s patent titled “Printing System, Printing Control System, and Printer” describes a system in which a primary system sends instructions to a printer about job-separation marks. The printer analyzes those instructions and carries out the sorting operation, helping make it easier to organize printed materials by job.
His patent titled “Print Control Apparatus Controlling Utilization State of Plural Format” concerns managing page and format data for printing. A control table tracks which format-memory blocks are in use or available, allowing format data to be prefetched into free blocks and helping prevent interruptions when formats change.
Career Highlights
Hirai is associated with Hitachi, Ltd. His listed patent work reflects a focus on print-job organization, memory management, and reliable printing operations.
Collaborations
His listed coworkers include Hiromichi Murakami and Tsuneo Imai.
Conclusion
Kenshi Hirai’s inventions address practical challenges in printing, including sorting printed jobs and maintaining continuous operation when print formats change.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile