Chiba, Japan

Sakae Kunitoh

This inventor holds 1 USPTO granted patent. Top assignee: Hitachi, Ltd.. Active years: 1980.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Sakae Kunitoh. Retrieved from https://idiyas.com/inventor/sakae-kunitoh

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile


% Patents Active = 100.0

Average Co-Inventor Count = 4.0

ph-index = 1

Forward Citations = 13(Granted Patents)


Company Filing History:


Years Active: 1980

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1 patent (USPTO):Explore Patents

Title: Sakae Kunitoh: Innovator in Color Picture Tube Technology

Introduction

Sakae Kunitoh is a notable inventor based in Chiba, Japan. He has made significant contributions to the field of display technology, particularly in the development of color picture tubes. His innovative work has led to advancements that enhance the quality and performance of visual displays.

Latest Patents

Kunitoh holds a patent for a color picture tube with an internal funnel-shaped magnetic shield. This invention, described as an in-line stripe type color picture tube, features an inner magnetic shield member that effectively counters both vertical and horizontal components of earth magnetism. The design prevents unwanted shifts of electron beams, ensuring that the positional relationship between the fluorescent screen and landing electron beams maintains sufficient tolerances. This innovation helps to prevent color blur on the fluorescent screen, thereby improving the overall viewing experience.

Career Highlights

Sakae Kunitoh is associated with Hitachi, Ltd., a leading company in technology and electronics. His work at Hitachi has allowed him to collaborate with other talented professionals in the field. His contributions have been instrumental in advancing display technologies that are widely used today.

Collaborations

Kunitoh has worked alongside notable colleagues, including Takeshi Matsuki and Koichi Maruyama. These collaborations have fostered an environment of innovation and creativity, leading to the development of cutting-edge technologies in the display sector.

Conclusion

Sakae Kunitoh's contributions to the field of color picture tube technology exemplify the impact of innovative thinking in electronics. His patent for a color picture tube with an internal magnetic shield showcases his commitment to enhancing display quality. Through his work at Hitachi and collaborations with other professionals, Kunitoh continues to influence the future of visual technology.

Profile summary based on public USPTO records.
Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]
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