Company Filing History:
Years Active: 2000-2002
Title: Hiroki Taga: Innovator in Color Picture Tube Technology
Introduction
Hiroki Taga is a notable inventor based in Mobara, Japan. He has made significant contributions to the field of display technology, particularly in the development of color picture tubes. With a total of 3 patents to his name, Taga's work has had a lasting impact on the industry.
Latest Patents
One of Taga's latest patents is for an inline type color picture tube. This innovative design features a panel that is substantially flat on its outer surface, while the inner surface is curved. The shadow mask in this design has a curved plane with a curvature greater than that of the inner panel surface. Additionally, the panel is made of glass, and a ring-like magnet assembly is provided outside of the neck for convergence adjustment. Taga's design also includes a first electromagnetic quadrupole coil to adjust the spacing of the electron beam based on the deflection angle, along with a second electromagnetic quadrupole coil attached to the deflection yoke. Notably, the distance between adjacent cathodes of the electron gun is determined to be greater than or equal to 6.0 millimeters.
Another significant patent by Taga addresses the color cathode ray tube with a specific skirt portion. This design aims to prevent the doming effect in the shadow mask caused by thermal expansion due to the electron beam's heating. The shadow mask is equipped with a skirt portion along at least one side, which includes a long projection where the mask is welded to the frame, an adjacent inclined portion that decreases in length away from the projection, and a short portion between the inclined section.
Career Highlights
Hiroki Taga has been associated with Hitachi, Ltd., where he has contributed to various advancements in display technology. His work has been instrumental in enhancing the performance and reliability of color picture tubes.
Collaborations
Taga has collaborated with notable coworkers such as Kazumasa Hirai and Tatsuya Mochizuki, further enriching his contributions to the field.
Conclusion
Hiroki Taga's innovative work in color picture tube technology has established him as a prominent figure in the industry. His patents reflect a deep understanding of display technology and a commitment to advancing the field.