Company Filing History:
Years Active: 1989-1999
Title: Innovations of Hirokazu Ohkura
Introduction
Hirokazu Ohkura is a prominent inventor based in Tokyo, Japan. He has made significant contributions to the field of ink jet recording technology, holding a total of six patents. His work has been instrumental in advancing the quality and efficiency of ink jet recording sheets.
Latest Patents
One of his latest patents is a tack sheet for ink jet recording. This invention comprises an ink jet recording sheet with an ink-receiving layer on one side and an adhesive layer on the other, integrated with a release sheet. The innovation includes a cationic polymer in the support or ink-receiving layer, ensuring an internal bond strength of 120 to 320 g·cm/cm² when tested in a wet state. Another notable patent is a coat type ink jet recording sheet featuring a backcoat layer with a specific platy inorganic pigment and an ink-receiving layer containing starch particles and a cationic dye fixing agent. This design minimizes curling and cockling, enhances runnability, and improves the light and ozone resistance of recorded images.
Career Highlights
Hirokazu Ohkura is associated with Mitsubishi Paper Mills Limited, where he has been able to apply his innovative ideas in practical applications. His work has not only contributed to the company's success but has also set new standards in the industry.
Collaborations
He has collaborated with notable coworkers such as Haruhiko Ikeda and Kouji Idei, further enriching the innovative environment at Mitsubishi Paper Mills Limited.
Conclusion
Hirokazu Ohkura's contributions to ink jet recording technology exemplify the impact of innovation in enhancing product quality and performance. His patents reflect a commitment to advancing technology in the field, making him a significant figure in the industry.