This inventor holds 3 USPTO granted patents, plus 1 CIPO patent. Top assignee: Mitsubishi Denki Kabushiki Kaisha. Active years: 1991-1992.
Company Filing History:
Years Active: 1991-1992
Title: Innovations of Hiroshi Tetsuda
Introduction
Hiroshi Tetsuda is a notable inventor based in Nagaokakyo, Japan. He has made significant contributions to the field of projection television technology. With a total of 3 patents, Tetsuda's work has advanced the way we experience visual media.
Latest Patents
One of Tetsuda's latest patents is a "Projection television apparatus for reducing red-emphasized peripheral." This invention involves a projection television apparatus that utilizes a combination of cathode ray tubes for the three primary colors: red, green, and blue. The green and blue cathode ray tubes are equipped with multilayered interference filters that adjust the intensity of the displayed light. The red cathode ray tube, however, operates without a filter, producing light with a luminous intensity distribution that closely matches that of the green and blue lights. This innovative design enhances the overall viewing experience.
Another significant patent is the "Projection type television apparatus." In this invention, Tetsuda has integrated a first and a second color selecting device along the optical light path of a cathode ray tube. This arrangement improves the range of color reproduction and increases the purity of green light in both central and peripheral areas of the cathode ray tube. The design also simplifies the manufacturing process, making it more efficient.
Career Highlights
Throughout his career, Hiroshi Tetsuda has worked with prominent companies, including Mitsubishi Electric Corporation and Kazuo Tsukagoshi. His experience in these organizations has contributed to his expertise in developing advanced television technologies.
Collaborations
Tetsuda has collaborated with notable individuals in the field, including Hiroshi Kawamura and Kazuo Tsukagoshi. These partnerships have fostered innovation and creativity in his projects.
Conclusion
Hiroshi Tetsuda's contributions to projection television technology have significantly impacted the industry. His innovative patents and collaborations reflect his dedication to enhancing visual media experiences.