Company Filing History:
Years Active: 1999-2000
Title: Yasuhiro Hamada: Innovator in Printing Technology
Introduction
Yasuhiro Hamada is a notable inventor based in Yokohama, Japan. He has made significant contributions to the field of printing technology, holding three patents that showcase his innovative approach to printer design and functionality.
Latest Patents
One of his latest patents involves a printer that includes a formatter and a printing unit without a memory. This design eliminates the need for a print buffer in the printer engine, allowing for efficient use of image memory to convert print data into a print image. The printer operates by outputting an enable signal to designate the transfer of data for one page from the formatter to the engine, responding to a request signal from the engine for the transmission of print data for one line. The print image data is then transferred in synchronism with a clock signal, ensuring a smooth printing process.
Another patent focuses on a printer that features a full-line type printhead capable of correcting variations in ink discharge amounts from the nozzles. This innovation addresses density unevenness in printed images caused by variations in driving circuits and temperature changes. The printer employs a pre-heating operation by selecting optimal pre-pulse signals for each nozzle based on stored information, ensuring high-quality printed images.
Career Highlights
Yasuhiro Hamada is currently employed at Canon Aptex, where he continues to develop advanced printing technologies. His work has significantly impacted the efficiency and quality of printing processes, making him a valuable asset to the company.
Collaborations
Hamada has collaborated with notable coworkers, including Shigeru Inose and Fumio Miyahara, contributing to the advancement of printing technology through teamwork and shared expertise.
Conclusion
Yasuhiro Hamada's innovative patents and contributions to the printing industry highlight his role as a leading inventor in this field. His work continues to influence the development of high-quality printing solutions.