Michitaka Ohsawa

Title: Michitaka Ohsawa – Innovator in Plasma Display Technology

Introduction

Michitaka Ohsawa, based in Fujisawa, Japan, is a prolific inventor with a remarkable portfolio of 42 patents. His contributions to the field of display technology, particularly regarding plasma displays, highlight his significant impact on modern visual technology.

Latest Patents

Among his latest innovations, Ohsawa has developed a plasma display apparatus that introduces an advanced drive circuit for a sustaining discharge circuit of an AC plasma display panel. This invention features an innovative arrangement of current flow parts designed to minimize inductance. The configuration includes a plasma display panel with formed electrodes and a conductive conductor that secures the panel. It also incorporates a pair of circuit boards affixed to the conductor with multiple fixing members, along with ground terminals and electric power supplies for each circuit board. Additionally, connecting circuit boards link the ends of the circuit boards to the panel, enhancing connectivity and performance.

Ohsawa's other notable patent is a front plate and display device that utilizes frusto-conical needle-shaped light guide paths implanted on the display panel. This design optimizes light output from display elements through total reflection within the needle-shaped light guide paths. The external light undergoes multiple reflections on wedge-shaped surfaces, effectively reducing attenuation. A light-absorbing film coats the guide paths, elevating the contrast ratio, which allows for clearer viewing in bright environments. It also minimizes cross-talk between adjacent pixels, ensuring a more vibrant display.

Career Highlights

Throughout his career, Michitaka Ohsawa has collaborated with renowned companies, including Hitachi, Ltd. His experience in such prestigious organizations reflects his expertise and commitment to innovation in the field of display technologies.

Collaborations

Ohsawa has worked alongside talented individuals, such as Yuji Sano and Kouji Kitou. Their collaborative efforts have contributed to the advancement of display technologies, further enhancing Ohsawa's innovative projects.

Conclusion

Michitaka Ohsawa's significant contributions, particularly in plasma display technology, underline his status as a key innovator in this field. With a total of 42 patents to his name, his inventions continue to influence the evolution of display systems, providing enhanced visual experiences for users worldwide.