Company Filing History:
Years Active: 1979
Title: The Innovations of Tsuneyo Sumita
Introduction
Tsuneyo Sumita is a notable inventor based in Yokohama, Japan. He is recognized for his contributions to the field of television technology, particularly in the development of color television cathode ray tubes. His innovative work has had a significant impact on the way we experience visual media today.
Latest Patents
One of Tsuneyo Sumita's key patents is for a color television cathode ray tube. This invention features a phosphor screen that includes a red-emitting phosphor, a green-emitting phosphor, and a blue-emitting phosphor. The red phosphor is selected from europium-activated rare earth metal oxides and europium-activated rare earth metal oxysulfides. The green phosphor is a mixture of copper-activated zinc sulfide and gold-activated aluminum-coactivated zinc sulfide, while the blue phosphor is silver-activated zinc sulfide. Notably, the green-emitting phosphor contains specific percentages of copper and gold to enhance its performance. This innovation allows for a more balanced current running through the cathodes of the electron guns, resulting in improved color accuracy.
Career Highlights
Tsuneyo Sumita has made significant strides in his career, particularly while working at Tokyo Shibaura Electric Co., Ltd. His work has contributed to advancements in television technology, making it more accessible and enjoyable for consumers. His dedication to innovation has positioned him as a key figure in the industry.
Collaborations
Throughout his career, Tsuneyo Sumita has collaborated with notable colleagues, including Yoshio Koga and Nobuo Inoue. These partnerships have fostered an environment of creativity and innovation, leading to groundbreaking advancements in television technology.
Conclusion
Tsuneyo Sumita's contributions to the field of television technology, particularly through his patent for the color television cathode ray tube, have left a lasting impact on the industry. His work continues to influence how we experience visual media today.
Inventor’s Patent Attorneys refers to legal professionals with specialized expertise in representing inventors throughout the patent process. These attorneys assist inventors in navigating the complexities of patent law, including filing patent applications, conducting patent searches, and protecting intellectual property rights. They play a crucial role in helping inventors secure patents for their innovative creations.